Relevant bibliographies by topics / Hybrid columns

Academic literature on the topic 'Hybrid columns'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Contents

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Hybrid columns.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Hybrid columns"

1

Shendrik, V. A. "STRUCTURAL EVALUATION OF REINFORCED CONCRETE COLUMN WITH COMPOSITE GFRP SHELL -- A STRUCTURAL ELEMENTOF BRIDGE PIER." Russian Journal of Building Construction and Architecture, no. 2(50) (May 21, 2021): 74–84. http://dx.doi.org/10.36622/vstu.2021.50.2.006.

Full text
Abstract:
Statement of the problem. It’s considered the problem of developing a methodology for structural evaluation of hybrid design - a reinforced concrete column combined with external composite GFRP (glass-fiber-reinforced-plastic) shell. This hybrid design is intended for bridge piers. Results. As a result of a study, theoretical relationships were formulated to determine the longitudinal and transverse stresses and relative deformations of hybrid column structural elements. The developed formulas take into account the cooperation of triaxial compressed concrete core and an anisotropic composite GFRP shell. Conclusions. The obtained theoretical dependences of the hybrid column’s elements behavior make it possible to develop a structural evaluation methodology of bridge piers hybrid columns. The findings of the investigation are proposed to be applied in the structural evaluations of the bridges piers hybrid columns with composite GFRP elements.
APA, Harvard, Vancouver, ISO, and other styles
2

Veselov, V., M. Abu-Khasan, and V. Egorov. "Hybrid Column Designs for Industrial Buildings." IOP Conference Series: Earth and Environmental Science 988, no. 5 (February 1, 2022): 052065. http://dx.doi.org/10.1088/1755-1315/988/5/052065.

Full text
Abstract:
Abstract The article analyzes the possible application of hybrid steel-concrete structures for industrial buildings, presents new developments in the structural forms of columns, supports, as well as ways to interface steel-concrete elements. The calculation of the steel-concrete step column is performed, the analysis of the reduction in steel consumption and other advantages of hybrid steel-concrete structures in comparison with traditional solutions of steel and reinforced concrete columns is made. The use of hybrid steel-concrete structures is effective mainly in compressed elements: columns, posts, supports, compressed parts of beams and trusses, crane beams, frame and arched structures.
APA, Harvard, Vancouver, ISO, and other styles
3

Shubbar, Hasanain A., and Nameer A. Alwash. "The Fire Exposure Effect on Hybrid Reinforced Reactive Powder Concrete Columns." Civil Engineering Journal 6, no. 2 (February 1, 2020): 363–74. http://dx.doi.org/10.28991/cej-2020-03091476.

Full text
Abstract:
This paper offers an experimental investigation of the fiber reinforced reactive powder concrete columns' behavior after exposure to fire and improvements made to improve column resistance against fire. This study is mainly aimed to study the experimental behavior of hybrid reinforced columns produced by reactive concrete powder (RPC) and exposure to the flame of fire at one side and subjected to eccentric load. The experimental methodology consists of sixteen RC columns that organized into four groups based on the variables used in this research: (SF) steel fibers, (PP) polypropylene fibers, (HB) hybrid fibers, (PPC-SF) hybrid cross-section (steel fiber reactive powder concrete core with polypropylene fiber reactive powder concrete cover). All columns were tested under 60 mm eccentric load and the burn columns were exposed to fire for different duration (1, 1.5 and 2) hours. The results indicated that (SF-RPC, PP-RPC, HB-RPC, PPC-SFRPC) columns exposed to a fire flame for the period 2 hours, lost from their load capacity by about (54.39, 40.03, 34.69 and 30.68) % respectively. The main conclusion of this paper is that the best fire resistance of the column obtained when using a hybrid cross-section (steel fiber reactive powder concrete core with polypropylene fiber reactive powder concrete cover).
APA, Harvard, Vancouver, ISO, and other styles
4

Li, Jian Hui, Ying Li, and Zong Cai Deng. "Envelope Response of Corroded RC Circular Columns Strengthened with Hybrid Fiber Reinforced Polymers." Advanced Materials Research 255-260 (May 2011): 3124–28. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.3124.

Full text
Abstract:
Corroded RC columns do not possess necessary ductility to dissipate seismic energy during a major earthquake, the study investigates the use of hybrid fiber reinforced polymer (FRP) wrapping as a method of retrofitting non-ductile corroded RC columns, and a model to determine the envelope response of RC corroded columns strengthened with hybrid FRP are presented based on cross-section analysis for undamaged RC element. The results show that the technique of strengthening corroded RC column with hybrid FRP is quite effective, the envelope curve estimated using the linear plane assumption with modification by reinforcement slip model, may still be used as the envelope curve of RC corroded columns strengthened with hybrid FRP, a good agreement between analytical and experimental results is observed.
APA, Harvard, Vancouver, ISO, and other styles
5

Filelis-Papadopoulos, Christos K., and George A. Gravvanis. "Hybrid multilevel solution of sparse least-squares linear systems." Engineering Computations 34, no. 8 (November 6, 2017): 2752–66. http://dx.doi.org/10.1108/ec-10-2016-0353.

Full text
Abstract:
Purpose Large sparse least-squares problems arise in different scientific disciplines such as optimization, data analysis, machine learning and simulation. This paper aims to propose a two-level hybrid direct-iterative scheme, based on novel block independent column reordering, for efficiently solving large sparse least-squares linear systems. Design/methodology/approach Herewith, a novel block column independent set reordering scheme is used to separate the columns in two groups: columns that are block independent and columns that are coupled. The permutation scheme leads to a two-level hierarchy. Using this two-level hierarchy, the solution of the least-squares linear system results in the solution of a reduced size Schur complement-type square linear system, using the preconditioned conjugate gradient (PCG) method as well as backward substitution using the upper triangular factor, computed through sparse Q-less QR factorization of the columns that are block independent. To improve the convergence behavior of the PCG method, the upper triangular factor, computed through sparse Q-less QR factorization of the coupled columns, is used as a preconditioner. Moreover, to further reduce the fill-in, then the column approximate minimum degree (COLAMD) algorithm is used to permute the block consisting of the coupled columns. Findings The memory requirements for solving large sparse least-squares linear systems are significantly reduced compared to Q-less QR decomposition of the original as well as the permuted problem with COLAMD. The memory requirements are reduced further by choosing to form larger blocks of independent columns. The convergence behavior of the iterative scheme is improved due to the chosen preconditioning scheme. The proposed scheme is inherently parallel due to the introduction of block independent column reordering. Originality/value The proposed scheme is a hybrid direct-iterative approach for solving sparse least squares linear systems based on the implicit computation of a two-level approximate pseudo-inverse matrix. Numerical results indicating the applicability and effectiveness of the proposed scheme are given.
APA, Harvard, Vancouver, ISO, and other styles
6

Wang, Dong, Yong Jun Liu, and Zhu Yan Li. "Test Study on Seismic Behavior of New Hybrid SCCC Columns." Advanced Materials Research 368-373 (October 2011): 353–56. http://dx.doi.org/10.4028/www.scientific.net/amr.368-373.353.

Full text
Abstract:
In order to investigate the seismic behavior of the new circular hybrid Steel–Concrete– CFRP–Concrete column (simply called SCCC column), low cyclic reciprocating load tests are carried out for three SCCC columns. The failure mode and hysteretic characteristics are researched, and the effects of changes of CFRP tubes diameter on seismic behavior of SCCC columns are analyzed. The results show that with the diameter increase of CFRP tube, the seismic behavior of SCCC column is also increased.
APA, Harvard, Vancouver, ISO, and other styles
7

Fakharifar, Mostafa, Genda Chen, Mahdi Arezoumandi, and Mohamed ElGawady. "Hybrid Jacketing for Rapid Repair of Seismically Damaged Reinforced Concrete Columns." Transportation Research Record: Journal of the Transportation Research Board 2522, no. 1 (January 2015): 70–78. http://dx.doi.org/10.3141/2522-07.

Full text
Abstract:
This study proposes hybrid jacketing for rapid repair of seismically damaged concrete columns for bridge safety. The hybrid jacketing for a reinforced concrete (RC) column is composed of a thin cold-formed steel sheet wrapped around the column and its outside prestressing strands. Although the prestressing strands can prevent buckling of the confining steel sheet, the steel sheet can in turn prevent the prestressing strands from cutting into the concrete. The hybrid jacketing concept was validated with testing of a large-scale RC column with lap splice deficiency typical of pre-1970 bridge constructions in the Central United States. Results from the original and repaired columns were compared for hysteresis loops, strength, stiffness, ductility, and energy dissipation. The hybrid jacketing proved to be effective in restoring structural behavior of the damaged column to prevent bridge collapse. Such a cost-effective solution can be implemented at bridge sites in hours. Design equations to establish the lateral force–displacement relationship of the tested column to design the hybrid jacket are derived in detail.
APA, Harvard, Vancouver, ISO, and other styles
8

Yang, Lanjie, Hongguang Wang, and Shansong Gao. "Study on Axial Compression Behavior of Concrete Short Columns Confined by Flax/Glass Fiber Hybrid-Reinforced Epoxy Resin Composites." Polymers 14, no. 3 (January 27, 2022): 517. http://dx.doi.org/10.3390/polym14030517.

Full text
Abstract:
In this study, we aimed to explore the effect of concrete short columns confined by flax/glass fiber hybrid-reinforced epoxy resin (FFRP/GFRP) composites. Taking the same fiber hybrid ratio and different paving orders as parameters, analysis of the axial compressive mechanical properties of eight groups of FFRP/GFRP composite-confined concrete short columns, including one group of flax fiber-reinforced epoxy resin (FFRP) composite-confined concrete short columns and one group of unconstrained concrete short column, was conducted. The effects of different layering sequences on failure modes, load–displacement curves, energy dissipation ductility and the stress–strain relationship of hybrid composite-confined concrete short columns were analyzed. The results show that the axial compression failure modes of FFRP/GFRP composite-confined concrete short columns with the same hybrid ratio and different paving sequences were basically the same, and the CC-H6 group was the most prominent. The ultimate bearing capacity and axial deflection were 91.05% and 11.49% higher than those of the control group (CC-FFRP), and the energy dissipation coefficient was also the largest, at 9.79. The failure trend of the stress–strain curve of the confined concrete short column specimens was basically the same, and the stress and axial strain of the members were increased by 247.9~292.5% and 486.7~701.0%, respectively.
APA, Harvard, Vancouver, ISO, and other styles
9

Patel, Nishiben, Krishna R. Gupta, and Milind J. Umekar. "An Overview of Monolithic Column: Types, Parameters and Applications." Journal of Drug Delivery and Therapeutics 12, no. 4-S (August 15, 2022): 223–31. http://dx.doi.org/10.22270/jddt.v12i4-s.5521.

Full text
Abstract:
The column is the main component for chromatographic separation. Nowadays, monolithic columns are graining more popularity in the field of separation media for liquid chromatography. The monolith columns possess great potential as compared to the conventional packed column in terms of preparing complex mixtures. These columns provide various properties like higher permeability, high-efficiency fast separations, high flow rate with lower backpressure, fast mass transfer kinetics with a high binding capacity. It is categories into three columns and they are organic monolithic column, inorganic monolithic column and hybrid monolithic column and all three types of monolithic column differ through their porous properties. In this review, the various advantage of the high-efficiency monolithic column with recent advances, the origin of the concept, the various parameter of the monolithic stationary phase and the application of monolithic columns are illustrated. It is better column in comparison of selectivity, reproducibility and performance. Keywords: Monolithic column, Packed columns, Inorganic and organic monolithic column, Column parameters, Pharmaceutical Applications
APA, Harvard, Vancouver, ISO, and other styles
10

Teng, Jin-Guang, Zihao Wang, Tao Yu, Yang Zhao, and Li-Juan Li. "Double-tube concrete columns with a high-strength internal steel tube: Concept and behaviour under axial compression." Advances in Structural Engineering 21, no. 10 (February 14, 2018): 1585–94. http://dx.doi.org/10.1177/1369433217746838.

Full text
Abstract:
This article presents a new form of fibre-reinforced polymer-concrete-steel hybrid columns and demonstrates some of its expected advantages using results from an experimental study. These columns consist of a concrete-filled fibre-reinforced polymer tube that is internally reinforced with a high-strength steel tube and are referred to as hybrid double-tube concrete columns. The three components in hybrid double-tube concrete columns (i.e. the external fibre-reinforced polymer tube, the concrete infill and the internal high-strength steel tube) are combined in an optimal manner to deliver excellent short- and long-term performance. The experimental study included axial compression tests on eight hybrid double-tube concrete columns with a glass fibre–reinforced polymer external tube covering different glass fibre–reinforced polymer tube thicknesses and diameters as well as different high-strength steel tube diameters. The experimental results show that in hybrid double-tube concrete columns, the concrete is well confined by both the fibre-reinforced polymer tube and the high-strength steel tube, and the buckling of the high-strength steel tube is suppressed so that its high material strength can be effectively utilized, leading to excellent column performance. Due to the high yield stress of high-strength steel, the hoop stress developed to confine the core concrete is much higher than can be derived from a normal-strength steel tube, giving the use of high-strength steel in double-tube concrete columns an additional advantage.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Hybrid columns"

1

NAGUIB, WASSIM IHAB. "LONG-TERM BEHAVIOR OF HYBRID FRP-CONCRETE BEAM-COLUMNS." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin982590541.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Shi, Yilei. "Seismic Performance of Hybrid Fiber Reinforced Polymer-Concrete Pier Columns." FIU Digital Commons, 2009. http://digitalcommons.fiu.edu/etd/101.

Full text
Abstract:
As part of a multi-university research program funded by NSF, a comprehensive experimental and analytical study of seismic behavior of hybrid fiber reinforced polymer (FRP)-concrete column is presented in this dissertation. Experimental investigation includes cyclic tests of six large-scale concrete-filled FRP tube (CFFT) and RC columns followed by monotonic flexural tests, a nondestructive evaluation of damage using ultrasonic pulse velocity in between the two test sets and tension tests of sixty-five FRP coupons. Two analytical models using ANSYS and OpenSees were developed and favorably verified against both cyclic and monotonic flexural tests. The results of the two methods were compared. A parametric study was also carried out to investigate the effect of three main parameters on primary seismic response measures. The responses of typical CFFT columns to three representative earthquake records were also investigated. The study shows that only specimens with carbon FRP cracked, whereas specimens with glass or hybrid FRP did not show any visible cracks throughout cyclic tests. Further monotonic flexural tests showed that carbon specimens both experienced flexural cracks in tension and crumpling in compression. Glass or hybrid specimens, on the other hand, all showed local buckling of FRP tubes. Compared with conventional RC columns, CFFT column possesses higher flexural strength and energy dissipation with an extended plastic hinge region. Among all CFFT columns, the hybrid lay-up demonstrated the highest flexural strength and initial stiffness, mainly because of its high reinforcement index and FRP/concrete stiffness ratio, respectively. Moreover, at the same drift ratio, the hybrid lay-up was also considered as the best in term of energy dissipation. Specimens with glassfiber tubes, on the other hand, exhibited the highest ductility due to better flexibility of glass FRP composites. Furthermore, ductility of CFFTs showed a strong correlation with the rupture strain of FRP. Parametric study further showed that different FRP architecture and rebar types may lead to different failure modes for CFFT columns. Transient analysis of strong ground motions showed that the column with off-axis nonlinear filament-wound glass FRP tube exhibited a superior seismic performance to all other CFFTs. Moreover, higher FRP reinforcement ratios may lead to a brittle system failure, while a well-engineered FRP reinforcement configuration may significantly enhance the seismic performance of CFFT columns.
APA, Harvard, Vancouver, ISO, and other styles
3

Trono, William Dean. "Earthquake Resilient Bridge Columns Utilizing Damage Resistant Hybrid Fiber Reinforced Concrete." Thesis, University of California, Berkeley, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3640671.

Full text
Abstract:

Modern reinforced concrete bridges are designed to avoid collapse and to prevent loss of life during earthquakes. To meet these objectives, bridge columns are typically detailed to form ductile plastic hinges when large displacements occur. California seismic design criteria acknowledges that damage such as concrete cover spalling and reinforcing bar yielding may occur in columns during a design-level earthquake.

The seismic resilience of bridge columns can be improved through the use of a damage resistant hybrid fiber reinforced concrete (HyFRC). Fibers delay crack propagation and prevent spalling under extreme loading conditions, and the material resists many typical concrete deterioration mechanisms through multi-scale crack control.

Little is known about the response of the material when combined with conventional reinforcing bars. Therefore, experimental testing was conducted to evaluate such behaviors. One area of focus was the compression response of HyFRC when confined by steel spirals. A second focus was the tensile response of rebar embedded in HyFRC. Bridge columns built with HyFRC would be expected to experience both of these loading conditions during earthquakes.

The third focus of this dissertation was the design, modeling, and testing of an innovative damage resistant HyFRC bridge column. The column was designed to rock about its foundation during earthquakes and to return to its original position thereafter. In addition to HyFRC, it was designed with unbonded post-tensioning, unbonded rebar, and headed rebar which terminated at the rocking plane. Because of these novel details, the column was not expected to incur damage or residual displacements under earthquake demands exceeding the design level for ordinary California bridges. A sequence of scaled, three dimensional ground motion records was applied to the damage resistant column on a shaking table. An equal scale reinforced concrete reference column with conventional design details was subjected to the same motions for direct comparison.

Compression tests showed that the ductility of HyFRC is superior to concrete in the post-peak softening branch of the response. HyFRC achieved a stable softening response and had significant residual load capacity even without spiral confinement. Concrete required the highest tested levels of confinement to achieved comparable post-peak ductility. Tension tests showed that HyFRC provides a substantial strength enhancement to rebar well beyond their yield point. Interesting crack localization behavior was observed in HyFRC specimens and appeared to be dependent on the volumetric ratio of rebar.

The damage resistant HyFRC bridge column attained its design objectives during experimental testing. It exhibited pronounced reentering behavior with only light damage under earthquake demands 1.5 to 2.0 times the design level. It accumulated only 0.4% residual drift ratio after seven successive ground motions which caused a peak drift ratio of 8.0%. The conventional reinforced concrete column experienced flexural plastic hinging with extensive spalling during the same seven motions. It accumulated 6.8% residual drift ratio after enduring a peak drift ratio of 10.8%.

APA, Harvard, Vancouver, ISO, and other styles
4

Massari, Milena. "Hybrid precast concrete dual-shell steel bridge columns under lateral loading." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/3054/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Zohrevand, Pedram. "Novel Hybrid Columns Made of Ultra-High Performance Concrete and Fiber Reinforced Polymers." FIU Digital Commons, 2012. http://digitalcommons.fiu.edu/etd/627.

Full text
Abstract:
The application of advanced materials in infrastructure has grown rapidly in recent years mainly because of their potential to ease the construction, extend the service life, and improve the performance of structures. Ultra-high performance concrete (UHPC) is one such material considered as a novel alternative to conventional concrete. The material microstructure in UHPC is optimized to significantly improve its material properties including compressive and tensile strength, modulus of elasticity, durability, and damage tolerance. Fiber-reinforced polymer (FRP) composite is another novel construction material with excellent properties such as high strength-to-weight and stiffness-to-weight ratios and good corrosion resistance. Considering the exceptional properties of UHPC and FRP, many advantages can result from the combined application of these two advanced materials, which is the subject of this research. The confinement behavior of UHPC was studied for the first time in this research. The stress-strain behavior of a series of UHPC-filled fiber-reinforced polymer (FRP) tubes with different fiber types and thicknesses were tested under uniaxial compression. The FRP confinement was shown to significantly enhance both the ultimate strength and strain of UHPC. It was also shown that existing confinement models are incapable of predicting the behavior of FRP-confined UHPC. Therefore, new stress-strain models for FRP-confined UHPC were developed through an analytical study. In the other part of this research, a novel steel-free UHPC-filled FRP tube (UHPCFFT) column system was developed and its cyclic behavior was studied. The proposed steel-free UHPCFFT column showed much higher strength and stiffness, with a reasonable ductility, as compared to its conventional reinforced concrete (RC) counterpart. Using the results of the first phase of column tests, a second series of UHPCFFT columns were made and studied under pseudo-static loading to study the effect of column parameters on the cyclic behavior of UHPCFFT columns. Strong correlations were noted between the initial stiffness and the stiffness index, and between the moment capacity and the reinforcement index. Finally, a thorough analytical study was carried out to investigate the seismic response of the proposed steel-free UHPCFFT columns, which showed their superior earthquake resistance, as compared to their RC counterparts.
APA, Harvard, Vancouver, ISO, and other styles
6

Karagiannis, Vasileios. "Behaviour of hybrid timber-steel beam-to-column connections." Thesis, Imperial College London, 2017. http://hdl.handle.net/10044/1/59187.

Full text
Abstract:
This thesis studies the behaviour of hybrid systems consisting of tubular steel columns and laminated glulam timber beams. The research includes experimental investigations at the material and structural system levels as well as several numerical and assessments. Firstly, an extensive experimental programme is conducted on the determination of the material properties of the glulam. This involve compressive, tensile, shear and bending material tests. In addition, one-dowel connection tests are carried out to examine the interaction between the steel fastener and the timber volume around the fastener hole with the aid of Digital Image Correlation (DIC) techniques. Subsequently, detailed three-dimensional detailed models are constructed and their results are compared with the experimental tests. To account for the material damage, the foundation zone approach was used. This model was shown to be able to correctly simulate the crushing response of wood in the embedding region. The implementation of this region into the model allows an accurate simulation of the damage accumulation process. To this end, new relationships were formulated as part of this thesis, that can be used to estimate the material characterisation as a function of the crushing volume. The proposed model allows for a relatively low dependence on the radius of the foundation volume adopted making it applicable to a wider range of varying geometrical configurations. The validity and accuracy of the proposed modified foundation models were examined against the experimental force-displacement curves, and good agreement was found between the experimental response and the numerical simulations The second experimental programme is concerned with the performance of timber beam-steel column assemblages. Two timber beam-to-steel column alternatives are examined: a) top and seat angle connection and b) slotted-in T-stub connection with bolts. The configuration of the connections and their set-up are presented, followed by detailed results in the form of figures and tables as well as observations from the tests. The main behavioural patterns are identified and key response characteristics such as stiffness, capacity and failure mechanisms are discussed. Detailed finite element models were created to simulate the experimental timber beam-to-steel column connection tests. The models included advance features such as contact phenomena, bolt pretension and orthotropic material definitions. The foundation zone approach developed in this thesis was implemented. The results of the models were validated against the experimental results and good agreement was found. Additionally, component-based models were also formulated for the prediction of the flexural response of the connection types tested. These expressions were developed to estimate the stiffness, capacity and ultimate loads of the connections and the results were validated against the experimental and numerical findings. The component models proposed were able to predict the response of the connection accurately including those cases where screws and bottom-wedge angles were involved. In the concluding part of the thesis, the developed finite element models are employed in a parametric assessment in order to highlight the influence of key geometric and material considerations. The dearth of information on timber-steel hybrid connection of this type, design methodologies must be developed to offer a preliminary assessment on the prediction and evaluation of the key characteristics and hence the results are also compared with simplified analytical expressions. Finally, the last section of the thesis summarised all the findings and numerous possible future research are identified.
APA, Harvard, Vancouver, ISO, and other styles
7

Eder, Martin A. "Inelastic behaviour of hybrid steel/concrete column-to-flat slab assemblages." Thesis, Imperial College London, 2011. http://hdl.handle.net/10044/1/7017.

Full text
Abstract:
The use of tubular columns in conjunction with reinforced concrete flat slabs provides structurally efficient solutions which avoid undesirable failure modes such as those associated with shear. This thesis is concerned with the development of a tubular column-to- flat slab connection system that enables reliable performance under seismic loading conditions. During this research a novel detail which features a gap around the column is proposed and developed; hence only the structural steel shearhead establishes the connection. The exposed parts of the shear arms (fuses) are designed to yield prior to punching shear failure, in a way that utilises the favourable features of steel in terms of the response to seismically induced loads. The proposed connection could serve as a primary lateral resisting system within all building configurations in regions of low to moderate seismicity or as a secondary system in areas of signi cant seismicity. In order to provide validation for the proposed details as well as associated numerical and design procedures, a purpose-built rig which is suitable for large scale testing of structural sub assemblages under combined gravity and uniaxial lateral loading, has been designed and constructed, and subsequently employed for a number of tests. Test results and numerical analyses are presented with respect to a conventional con guration, as well as for the proposed, partially embedded connection. The latter is shown to offer enhanced ductility compared with traditional forms. The results are used to demonstrate the favourable inelastic performance of the proposed detail in terms of ductility, low degradation effects and increased energy dissipation capabilities. Complementary small scale slab panel tests are also used to further optimise the composite behaviour of the proposed detail. Additionally, a closed form solution based on plastic limit analysis which can serve as a basis for a simplified design approach is proposed. Finally, the main findings from the experimental and analytical investigations are highlighted, and recommendations for future research are outlined.
APA, Harvard, Vancouver, ISO, and other styles
8

Khusru, Shovona. "High performance hybrid structural column with rubberised concrete under axial compressive loading." Thesis, Queensland University of Technology, 2022. https://eprints.qut.edu.au/233665/1/Shovona_Khusru_Thesis.pdf.

Full text
Abstract:
Every year millions of tyres are disposed of worldwide in landfill resulting in the rise of an environmental burden. This thesis demonstrates the development of a sustainable novel hybrid double skin tubular column utilizing the scrap tyre rubbers. The proposed column made with rubberised concrete infill, filament wound FRP outer tube and steel inner tube, has been studied extensively through experimental testing, finite element modelling and parametric studies, to understand the structural performance under axial loading. This column, compared to the traditional column will be sustainable and beneficial at the locations demanding improved ductility, energy absorption and corrosion resistance.
APA, Harvard, Vancouver, ISO, and other styles
9

McLean, Michael M. "Phenyl Functionalized Sol-gel Silica Sorbent for Capillary Microextraction and Chromia-Based Sol-gel Ucon Stationary Phase for Capillary Gas Chromatography." Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5374.

Full text
Abstract:
The first chapter of this thesis presents an introduction to sol-gel methodology whose usefulness as a synthetic route will be demonstrated with two applications in chromatography. The first application involves the fabrication of a capillary micro-extraction (CME) device by coating a phenyl functionalized extracting phase on the inner surface of a fused silica capillary for analyte pre-concentration. The device was coupled on-line to a RP-HPLC system and practicality was demonstrated using allergens as target analytes. The allergens chosen as model analytes are typically found in fragrance products and food. Most of the 26 fragrance allergens that are monitored by various government authorities have a phenyl organic moiety (a strong chromophore), thus making them appropriate probes for exploring the extraction efficiency of the coating using a UV detector. The CME device showed ppt level limit of detection which makes it suitable for trace analyses of allergens and similar compounds in a variety of matrices. The second application explores the feasibility of using sol-gel derived chromia-based stationary phase in gas chromatographic columns. The organic moiety of the stationary phase was derived from Ucon 75-H-90,000 while the inorganic backbone was prepared using chromium(III) dichloride hydroxide - methacrylic acid - aqua complex, 40% in isopropanol/acetone . Usefulness of prepared chromia-based GC stationary phase was examined for petrochemical application. Promising results were obtained using aliphatic-aromatics, polyaromatic hydrocarbons, BTEX test mixture, cycloalkanes, branched alkanes and akylbenzenes. The column was able to perform without degradation despite being rinsed multiples times sequentially with the following solvents: dichloromethane, methanol, water and finally methanol again. Maximum theoretical plate number calculated is around 2,400 plates/m. The plate number clearly needs improvement but is a promising result for the newly explored chromia-based stationary phase. The maximum programmable temperature is 250oC which is comparable with similar commercially available polar stationary phases.
APA, Harvard, Vancouver, ISO, and other styles
10

Nguyen, Cong-Danh. "Workload- and Data-based Automated Design for a Hybrid Row-Column Storage Model and Bloom Filter-Based Query Processing for Large-Scale DICOM Data Management." Thesis, Université Clermont Auvergne‎ (2017-2020), 2018. http://www.theses.fr/2018CLFAC019/document.

Full text
Abstract:
Dans le secteur des soins de santé, les données d'images médicales toujours croissantes, le développement de technologies d'imagerie, la conservation à long terme des données médicales et l'augmentation de la résolution des images entraînent une croissance considérable du volume de données. En outre, la variété des dispositifs d'acquisition et la différence de préférences des médecins ou d'autres professionnels de la santé ont conduit à une grande variété de données. Bien que la norme DICOM (Digital Imaging et Communication in Medicine) soit aujourd'hui largement adoptée pour stocker et transférer les données médicales, les données DICOM ont toujours les caractéristiques 3V du Big Data: volume élevé, grande variété et grande vélocité. En outre, il existe une variété de charges de travail, notamment le traitement transactionnel en ligne (en anglais Online Transaction Processing, abrégé en OLTP), le traitement analytique en ligne (anglais Online Analytical Processing, abrégé en OLAP) et les charges de travail mixtes. Les systèmes existants ont des limites concernant ces caractéristiques des données et des charges de travail. Dans cette thèse, nous proposons de nouvelles méthodes efficaces pour stocker et interroger des données DICOM. Nous proposons un modèle de stockage hybride des magasins de lignes et de colonnes, appelé HYTORMO, ainsi que des stratégies de stockage de données et de traitement des requêtes. Tout d'abord, HYTORMO est conçu et mis en œuvre pour être déployé sur un environnement à grande échelle afin de permettre la gestion de grandes données médicales. Deuxièmement, la stratégie de stockage de données combine l'utilisation du partitionnement vertical et un stockage hybride pour créer des configurations de stockage de données qui peuvent réduire la demande d'espace de stockage et augmenter les performances de la charge de travail. Pour réaliser une telle configuration de stockage de données, l'une des deux approches de conception de stockage de données peut être appliquée: (1) conception basée sur des experts et (2) conception automatisée. Dans la première approche, les experts créent manuellement des configurations de stockage de données en regroupant les attributs des données DICOM et en sélectionnant une disposition de stockage de données appropriée pour chaque groupe de colonnes. Dans la dernière approche, nous proposons un cadre de conception automatisé hybride, appelé HADF. HADF dépend des mesures de similarité (entre attributs) qui prennent en compte les impacts des informations spécifiques à la charge de travail et aux données pour générer automatiquement les configurations de stockage de données: Hybrid Similarity (combinaison pondérée de similarité d'accès d'attribut et de similarité de densité d'attribut) les attributs dans les groupes de colonnes; Inter-Cluster Access Similarity est utilisé pour déterminer si deux groupes de colonnes seront fusionnés ou non (pour réduire le nombre de jointures supplémentaires); et Intra-Cluster Access La similarité est appliquée pour décider si un groupe de colonnes sera stocké dans une ligne ou un magasin de colonnes. Enfin, nous proposons une stratégie de traitement des requêtes adaptée et efficace construite sur HYTORMO. Il considère l'utilisation des jointures internes et des jointures externes gauche pour empêcher la perte de données si vous utilisez uniquement des jointures internes entre des tables partitionnées verticalement. De plus, une intersection de filtres Bloom (intersection of Bloom filters, abrégé en ) est appliqué pour supprimer les données non pertinentes des tables d'entrée des opérations de jointure; cela permet de réduire les coûts d'E / S réseau. (...)
In the health care industry, the ever-increasing medical image data, the development of imaging technologies, the long-term retention of medical data and the increase of image resolution are causing a tremendous growth in data volume. In addition, the variety of acquisition devices and the difference in preferences of physicians or other health-care professionals have led to a high variety in data. Although today DICOM (Digital Imaging and Communication in Medicine) standard has been widely adopted to store and transfer the medical data, DICOM data still has the 3Vs characteristics of Big Data: high volume, high variety and high velocity. Besides, there is a variety of workloads including Online Transaction Processing (OLTP), Online Analytical Processing (OLAP) and mixed workloads. Existing systems have limitations dealing with these characteristics of data and workloads. In this thesis, we propose new efficient methods for storing and querying DICOM data. We propose a hybrid storage model of row and column stores, called HYTORMO, together with data storage and query processing strategies. First, HYTORMO is designed and implemented to be deployed on large-scale environment to make it possible to manage big medical data. Second, the data storage strategy combines the use of vertical partitioning and a hybrid store to create data storage configurations that can reduce storage space demand and increase workload performance. To achieve such a data storage configuration, one of two data storage design approaches can be applied: (1) expert-based design and (2) automated design. In the former approach, experts manually create data storage configurations by grouping attributes and selecting a suitable data layout for each column group. In the latter approach, we propose a hybrid automated design framework, called HADF. HADF depends on similarity measures (between attributes) that can take into consideration the combined impact of both workload- and data-specific information to generate data storage configurations: Hybrid Similarity (a weighted combination of Attribute Access and Density Similarity measures) is used to group the attributes into column groups; Inter-Cluster Access Similarity is used to determine whether two column groups will be merged together or not (to reduce the number of joins); and Intra-Cluster Access Similarity is applied to decide whether a column group will be stored in a row or a column store. Finally, we propose a suitable and efficient query processing strategy built on top of HYTORMO. It considers the use of both inner joins and left-outer joins. Furthermore, an Intersection Bloom filter () is applied to reduce network I/O cost.We provide experimental evaluations to validate the benefits of the proposed methods over real DICOM datasets. Experimental results show that the mixed use of both row and column stores outperforms a pure row store and a pure column store. The combined impact of both workload-and data-specific information is helpful for HADF to be able to produce good data storage configurations. Moreover, the query processing strategy with the use of the can improve the execution time of an experimental query up to 50% when compared to the case where no is applied
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Hybrid columns"

1

Choong, Kok Keong, Jayaprakash Jaganathan, Sharifah Salwa Mohd Zuki, Shahiron Shahidan, and Nurul Izzati Raihan Ramzi Hannan. Concrete-Filled Double Skin Steel Tubular Column with Hybrid Fibre Reinforced Polymer. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2715-6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Keller, Thomas. Use of fibre reinforced polymers in bridge construction. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2003. http://dx.doi.org/10.2749/sed007.

Full text
Abstract:
<p>The aim of the present Structural Engineering Document, a state-of-the-art report, is to review the progress made worldwide in the use of fibre rein­forced polymers as structural components in bridges until the end of the year 2000.<p> Due to their advantageous material properties such as high specific strength, a large tolerance for frost and de-icing salts and, furthermore, short installation times with minimum traffic interference, fibre reinforced polymers have matured to become valuable alternative building materials for bridge structures. Today, fibre reinforced polymers are manufactured industrially to semi-finished products and ccimplete structural components, which can be easily and quickly installed or erected on site.<p> Examples of semi-finished products and structural components available are flexible tension elements, profiles stiff in bending and sandwich panels. As tension elements, especially for the purpose of strengthening, strips and sheets are available, as weil as reinforcing bars for concrete reinforcement and prestressing members for internal prestressing or external use. Profiles are available for beams and columns, and sandwich constructions especially for bridge decks. During the manufacture of the structural components fibre-optic sensors for continuous monitoring can be integrated in the materials. Adhesives are being used more and more for joining com­ponents.<p> Fibre reinforced polymers have been used in bridge construction since the mid-1980s, mostly for the strengthening of existing structures, and increas­ingly since the mid-1990s as pilot projects for new structures. In the case of new structures, three basic types of applications can be distinguished: concrete reinforcement, new hybrid structures in combination with traditional construction materials, and all-composite applications, in which the new materials are used exclusively.<p> This Structural Engineering Document also includes application and research recommendations with particular reference to Switzerland.<p> This book is aimed at both students and practising engineers, working in the field of fibre reinforced polymers, bridge design, construction, repair and strengthening.
APA, Harvard, Vancouver, ISO, and other styles
3

Leslie, Thomas. “Built Mostly of Itself”: Chicago and Clay, 1874–1891. University of Illinois Press, 2017. http://dx.doi.org/10.5406/illinois/9780252037542.003.0002.

Full text
Abstract:
This chapter describes major structures built from 1874–1891, which were dominated by taller masonry buildings that employed improved masonry, foundations, and fireproofing. Early fire-protected iron-framed buildings achieved modest increases in height over all-masonry structures. Wrapping iron columns and girders with terra-cotta jackets saved owners floor space that would otherwise have gone toward larger brick piers, though masonry was still the primary material for exterior walls. The result—jacketed iron structures inside surrounded by bearing masonry walls outside—was called “cage” construction in New York. The skyscrapers built in Chicago's building boom of 1884—1886 all deployed this hybrid strategy of metal frame and masonry wall. Skyscrapers supported, braced, and clad with masonry were also made stronger and more economical by the rise of a pressed-brick industry in Chicago.
APA, Harvard, Vancouver, ISO, and other styles
4

Keong, Choong Kok, J. Jayaprakash Jaganathan, Sharifah Salwa Mohd Zuki, Shahiron Shahidan, and Nurul Izzati Raihan Ramzi Hannan. Concrete-Filled Double Skin Steel Tubular Column with Hybrid Fibre Reinforced Polymer: Post Fire Repair. Springer Singapore Pte. Limited, 2021.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Isao, Nishiyama, and Kensetsushō Kenchiku Kenkyūjo (Japan), eds. Summary of research on concrete-filled structural steel tube column system carried out under the US-Japan cooperative research program on composite and hybrid structures. [Tokyo]: Building Research Institute, Ministry of Construction, 2002.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Hybrid columns"

1

Cangioli, Filippo, Steven Chatterton, Paolo Pennacchi, and Edoardo Sabbioni. "Dynamic Characterization of Milling Plant Columns." In Rotating Machinery, Hybrid Test Methods, Vibro-Acoustics & Laser Vibrometry, Volume 8, 311–21. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-30084-9_29.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Aydın, Ferhat, Tahir Akgül, and Emine Aydın. "Investigation of Buckling Behavior of FRP-Concrete Hybrid Columns." In Lecture Notes in Civil Engineering, 436–48. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-64349-6_35.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Ni, Junfeng, and Jinchun Chai. "DCM Columns and PVDs Hybrid Ground Improvement for Embankment Construction." In Lecture Notes in Civil Engineering, 719–31. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0077-7_61.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Simões da Silva, L., and Y. Harada. "Design of hybrid beam-to-column joints between RHS tubular columns and I-section beams." In Modern Trends in Research on Steel, Aluminium and Composite Structures, 53–65. London: Routledge, 2021. http://dx.doi.org/10.1201/9781003132134-5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Choong, Kok Keong, Jayaprakash Jaganathan, Sharifah Salwa Mohd Zuki, Shahiron Shahidan, and Nurul Izzati Raihan Ramzi Hannan. "Post-fire Behavior of Concrete-Filled Double Skin Steel Tubular Columns." In Concrete-Filled Double Skin Steel Tubular Column with Hybrid Fibre Reinforced Polymer, 19–36. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2715-6_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Mallinadh, A. K., T. Chandra Sekhar Rao, and N. V. Ramana Rao. "Strength and Behavior of Hybrid Fiber-Reinforced Geopolymer Concrete Columns Under Uniaxial Compression." In Advances in Sustainable Construction Materials, 3–19. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3361-7_1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Javad Hashemi, M., Riadh Al-Mahaidi, Robin Kalfat, Yassamin Al-Ogaidi, and John L. Wilson. "Response of Earthquake-Damaged RC Columns Repaired with CFRP Composites Using Hybrid Simulation." In High Tech Concrete: Where Technology and Engineering Meet, 887–94. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-59471-2_103.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Choong, Kok Keong, Jayaprakash Jaganathan, Sharifah Salwa Mohd Zuki, Shahiron Shahidan, and Nurul Izzati Raihan Ramzi Hannan. "Temperature Distribution and Post-fire Behavior of Concrete-Filled Double Skin Steel Tubular Columns." In Concrete-Filled Double Skin Steel Tubular Column with Hybrid Fibre Reinforced Polymer, 37–54. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2715-6_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Choong, Kok Keong, Jayaprakash Jaganathan, Sharifah Salwa Mohd Zuki, Shahiron Shahidan, and Nurul Izzati Raihan Ramzi Hannan. "Repair of Fire-Damaged Concrete-Filled Double Skin Steel Tubular Columns with Fiber Reinforced Polymer (FRP)." In Concrete-Filled Double Skin Steel Tubular Column with Hybrid Fibre Reinforced Polymer, 55–77. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2715-6_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Alvelos, Filipe, Amaro de Sousa, and Dorabella Santos. "Combining Column Generation and Metaheuristics." In Hybrid Metaheuristics, 285–334. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-30671-6_11.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Hybrid columns"

1

Kanno, Ryoichi, Nobutaka Shimizu, and Tomoki Kobashi. "Bearing Failure of Beam–column Connections between Steel Beams and Reinforced Concrete Columns." In 10th International Conference on Advances in Steel Concrete Composite and Hybrid Structures. Singapore: Research Publishing Services, 2012. http://dx.doi.org/10.3850/978-981-07-2615-7_177.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

"An Experimental Evaluation of High-Strength Square CFT Columns." In SP-196: Composite and Hybrid Systems. American Concrete Institute, 2000. http://dx.doi.org/10.14359/10005.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Sheikh, Shamim Ahmed, and Zahra Kharal. "Corrosion-resistant Reinforced Concrete Columns." In IABSE Conference, Kuala Lumpur 2018: Engineering the Developing World. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2018. http://dx.doi.org/10.2749/kualalumpur.2018.0946.

Full text
Abstract:
<p>To address this issue of corrosion of steel in reinforced concrete, large scale columns reinforced with glass fibre reinforced polymer (GFRP) bars were tested under simulated earthquake loads. In addition to the moment - curvature and shear - deflection responses, ductility factors, and work and energy dissipation parameters were used to evaluate column performance. Twenty-five columns with circular and square sections can be compared to investigate variables such as axial load level, amount and type of reinforcement, i.e. GFRP vs steel. GFRP-reinforced columns were found to behave with stable post-peak response and achieved high levels of deformability and energy dissipation. The optimum solution with respect to column strength, stiffness, ductility and energy dissipation, and corrosion resistance appears to be a hybrid column with steel longitudinal bars and GFRP transverse reinforcement.</p>
APA, Harvard, Vancouver, ISO, and other styles
4

"Should I Use ACI 318 or LRFD for Designing Composite Columns?" In SP-196: Composite and Hybrid Systems. American Concrete Institute, 2000. http://dx.doi.org/10.14359/10001.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Nakahara, Hiroyuki, and Shinya Tokuda. "Shearing Behavior of Circular CFT Short Columns." In 10th International Conference on Advances in Steel Concrete Composite and Hybrid Structures. Singapore: Research Publishing Services, 2012. http://dx.doi.org/10.3850/978-981-07-2615-7_144.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Lam, N. T., J. Y. R. Liew, and Mingxiang Xiong. "Effective Length of Composite Columns Under Fire." In 10th International Conference on Advances in Steel Concrete Composite and Hybrid Structures. Singapore: Research Publishing Services, 2012. http://dx.doi.org/10.3850/978-981-07-2615-7_r013.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Sadeghian, Pedram, and Brandon Fillmore. "A Hybrid Composite System for Strengthening Concrete Columns." In Structures Congress 2018. Reston, VA: American Society of Civil Engineers, 2018. http://dx.doi.org/10.1061/9780784481332.007.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Yan, Qiaoling, Baochun Chen, and Tingmin Mu. "Experimental Study on Eccentrically Loaded CFST Composite Strut Columns." In 10th International Conference on Advances in Steel Concrete Composite and Hybrid Structures. Singapore: Research Publishing Services, 2012. http://dx.doi.org/10.3850/978-981-07-2615-7_140.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Zhai, Ximei, Hai Wu, and Lijuan Sun. "Stability Strength of Aluminum Alloy Columns under Concentric Compression." In 10th International Conference on Advances in Steel Concrete Composite and Hybrid Structures. Singapore: Research Publishing Services, 2012. http://dx.doi.org/10.3850/978-981-07-2615-7_340.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Gopalan, Harish, Dominic Denver John Chandar, Narasimha Rao Pillamarri, Guan Mengzhao, Rajeev K. Jaiman, Peifeng Ma, Haihua Xu, Ankit Choudhary, and Anis Hussain. "Numerical Investigation of Flow Interference Effects in Fixed and Vibrating Tandem Square Columns Using Hybrid RANS-LES Models." In ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/omae2015-41659.

Full text
Abstract:
Investigation of flow past tandem and side-by-side circular and square columns is of interest in offshore engineering. Flow past fixed and vibrating circular columns has received a lot of focus in the literature. However, the studies focused on square columns, especially at high Reynolds numbers are very limited due to the computational cost of large eddy simulation (LES). Unsteady Reynolds-averaged Navier-Stokes (URANS) methods are limited by their accuracy, especially for tandem columns in the wake interference regime (spacing to diameter ratio: L=D ∼ 3:0). Hybrid URANS-LES models (URANS near the solid-wall and LES away from the wall) can overcome the drawbacks of the traditional URANS methods and can provide a reasonable prediction of the flow physics at a fraction of the cost of LES without significantly sacrificing numerical accuracy. Arbitrary Lagrangian-Eulerian (ALE) methods fails when vibrating tandem bodies are in close proximity to each other or vibrate at high reduced velocities. Remeshing the domain can be expensive, especially at high Reynolds numbers (Re). Alternate strategies are necessary to efficiently simulation this problems. This study proposes the use of a non-linear URANS-LES model, coupled with an overset mesh method (for vibrating columns), for studying flow past tandem square columns. Simulations are performed at sub-critical Re to match the experimental Re. The initial results are encouraging for further investigation of fixed and vibrating tandem square column flow interference at high Reynolds numbers.
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Hybrid columns"

1

Zhang, Ziqian, and Gang Shi. EXPERIMENTAL STUDY ON BOX-T HYBRID SECTION COLUMNS UNDER COMPRESSION. The Hong Kong Institute of Steel Construction, December 2018. http://dx.doi.org/10.18057/icass2018.p.047.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Lyzanchuk, Vasyl. COMMUNICATIVE SYNERGY OF UKRAINIAN NATIONAL VALUES IN THE CONTEXT OF THE RUSSIAN HYBRID WAR. Ivan Franko National University of Lviv, February 2021. http://dx.doi.org/10.30970/vjo.2021.49.11077.

Full text
Abstract:
The author characterized the Ukrainian national values, national interests and national goals. It is emphasized that national values are conceptual, ideological bases, consolidating factors, important life guidelines on the way to effective protection of Ukraine from Russian aggression and building a democratic, united Ukrainian state. Author analyzes the functioning of the mass media in the context of educational propaganda of individual, social and state values, the dominant core of which are patriotism, human rights and freedoms, social justice, material and spiritual wealth of Ukrainians, natural resources, morality, peace, religiosity, benevolence, national security, constitutional order. These key national values are a strong moral and civic core, a life-giving element, a self-affirming synergy, which on the basis of homogeneity binds the current Ukrainian society with the ancestors and their centuries-old material and spiritual heritage. Attention is focused on the fact that the current problem of building the Ukrainian state and protecting it from the brutal Moscow invaders is directly dependent on the awareness of all citizens of the essence of national values, national interests, national goals and filling them with the meaning of life, charitable socio-political life. It is emphasized that the missionary vocation of journalists to orient readers and listeners to the meaningful choice of basic national values, on the basis of which Ukrainian citizens, regardless of nationality together they will overcome the external Moscow and internal aggression of the pro-Russian fifth column, achieve peace, return the Ukrainian territories seized by the Kremlin imperialists and, in agreement will build Ukrainian Ukraine.
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Hybrid columns' for particular source types:
Journal articles Dissertations / Theses
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography