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Journal articles on the topic 'Concrete cone capacity'

Author: Grafiati

Published: 11 May 2023

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1

Ninčević, Krešimir, Ioannis Boumakis, Marco Marcon, and Roman Wan-Wendner. "Aggregate effect on concrete cone capacity." Engineering Structures 191 (July 2019): 358–69. http://dx.doi.org/10.1016/j.engstruct.2019.04.028.

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2

Karmokar, Trijon, Alireza Mohyeddin, and Jessey Lee. "Predictive models for concrete cone capacity of cast-in headed anchors in geopolymer concrete." Engineering Structures 285 (June 2023): 116025. http://dx.doi.org/10.1016/j.engstruct.2023.116025.

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3

Xu, Xiaoqing, Shanwen Zeng, Wei He, Zhujian Hou, Dongyang He, and Tao Yang. "Numerical Study on the Tensile Performance of Headed Stud Shear Connectors with Head-Sectional Damage." Materials 15, no. 8 (2022): 2802. http://dx.doi.org/10.3390/ma15082802.

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An extensive numerical study was carried out due to the concern that head-sectional damage caused by corrosion poses a threat to the tensile performance of headed stud connectors. Three-dimensional finite element models of pull-out tests were established, with both material and geometric nonlinearities being considered. In particular, the concrete weak region due to bleeding was simulated. The simulation method was verified by the results of pull-out tests on two connectors with different damage degrees. Tensile performance of headed stud shear connectors of various shaft diameters (ds = 10 to

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4

Robson, Miora Nirina, Omar Al-Mansouri, Nicolas Pinoteau, et al. "Experimental Investigation of the Concrete Cone Failure of Bonded Anchors at Room and High Temperature." Applied Sciences 12, no. 9 (2022): 4760. http://dx.doi.org/10.3390/app12094760.

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Under fire conditions, bonded anchors often exhibit pull-out failure due to the thermal sensitivity of polymer-based adhesives. However, progress in manufacturing has allowed the development of more thermoresistant mortars, enhancing the probability of observing concrete-related failure modes at high temperature. For concrete cone failure, Annex D (Informative) to the European Standard EN 1992-4 provides a method to determine the characteristic fire resistance. This method is based on ISO 834-1 fire ratings and on limited experimental data without inclusion of bonded anchors. To remedy these s

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5

Bokor, Boglárka, Máté Tóth, and Akanshu Sharma. "Fasteners in Steel Fiber Reinforced Concrete Subjected to Increased Loading Rates." Fibers 6, no. 4 (2018): 93. http://dx.doi.org/10.3390/fib6040093.

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Increased loading rates on fasteners may be caused by high ground accelerations as a consequence of e.g., nuclear explosions, earthquakes or car collisions. It was concluded by Hoehler et al. (2006) that fasteners under rapid loading rates show an increased ultimate resistance in the concrete dominant failure modes or the ultimate resistance is at least as large as under quasi-static loading. Due to the increased demand on using fasteners in steel fiber reinforced concrete (SFRC), it is intended to show how the ultimate concrete cone capacity of fasteners changes under higher than quasi-static

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6

Nilforoush, Rasoul. "A Refined Model for Predicting Concrete-Related Failure Load of Tension Loaded Cast-in-Place Headed Anchors in Uncracked Concrete." Nordic Concrete Research 60, no. 1 (2019): 105–29. http://dx.doi.org/10.2478/ncr-2019-0091.

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Abstract Current theoretical models for predicting the concrete cone breakout capacity of tension loaded headed anchors do not consider the influence of member thickness, size of anchor head, and orthogonal surface reinforcement. In the present study, the influence of the aforementioned parameters was studied both numerically and experimentally. Both the numerical and experimental results showed that the tensile resistance of headed anchors increases by increasing the member thickness or if orthogonal surface reinforcement is present. In addition, the anchorage capacity further increases with

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7

Xie, Qun, Qin Zhu Sheng, and Hao Xue Ju. "Multiple Anchor Behavior of Steel-to-Concrete Connections under Reversed Cyclic Loading." Advanced Materials Research 255-260 (May 2011): 669–73. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.669.

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Four steel-to-concrete connections with adhesive anchor groups under reversed cyclic loading have been tested. The results showed that anchor steel could reach yield strength before connection failure, generating small shell-shaped concrete cone in the surface of block and the ultimate capacity was governed by strength of anchor. Seismic characteristics of hysteresis curve, rigidity regression, ductility and energy-dissipation were used to draw conclusions that the connections would behave in a ductile manner without significant loss of loading capacity after peak value and visible deformation

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8

Li, Shanshan, Yukun Zhang, and Dayong Li. "Capacity of Cone-Shaped Hollow Flexible Reinforced Concrete Foundation (CHFRF) in Sand under Horizontal Loading." Advances in Materials Science and Engineering 2020 (October 7, 2020): 1–14. http://dx.doi.org/10.1155/2020/6346590.

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The cone-shaped hollow flexible reinforced concrete foundation (CHFRF) is an innovative type of mountain wind turbine foundation, which outperforms the regular mountain wind turbine foundation in reducing the steel and concrete and protecting the surrounding vegetation for the cavity absorbs soil obtained from excavating the foundation pit. Moreover, the rubber layer installed between the wall of CHFRF and the surrounding ground increases foundation flexibility and releases the larger overturning moment induced by wind. The rubber layer is made of alternately laminated rubber and steel. The ob

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9

Podhorecki, Adam, Oleksandr Hnatiuk, Mykola Lapchuk, and Oleksandr Mazepa. "Investigation of Bearing Capacity of the Drill-Impact Micropiles with Enlarged Toe in the Soils of Different Type." IOP Conference Series: Materials Science and Engineering 1203, no. 3 (2021): 032054. http://dx.doi.org/10.1088/1757-899x/1203/3/032054.

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Abstract The reinforced concrete micropiles with enlarged toe is the effective construction for the arranging of new and reinforcing of existing foundations which a drill-impact method are made as a circular bar with a diameter to 250 mm from the flow consistency concrete with prefabricated reinforcement cage and enlarged to two diameters toe cone-shaped form. For research of them real work by the authors of the article and engineers of PP BKF “Osnova” were conducted them field tests on the objects of building in the different soil conditions and the analysis of them calculation and experiment

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10

Wen, Yang. "The Study on Force Behavior of Concrete Filled Steel Tube Lattice Wind Turbine Tower with Three Limb Columns." Applied Mechanics and Materials 178-181 (May 2012): 179–83. http://dx.doi.org/10.4028/www.scientific.net/amm.178-181.179.

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This paper refers to currently the 1.5MW cone tube type wind-driven generator tower, design the model of the concrete-filled steel tube wind turbine tower with three limb columns, and research on the force performance, such as the change of internal force, the process of failure, hysteretic behavior, bearing capacity, ductility and energy dissipation capacity by the pseudo-static experiment on the scale model of wind turbine tower. The study shows that the P- hysteretic curve of lattice concrete-filled steel tube wind-driven generator tower with three limb columns is asymmetric, relatively ful

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11

Arslan, Guray, and Melih Hacisalihoglu. "NONLINEAR ANALYSIS OF RC COLUMNS USING THE DRUCKER-PRAGER MODEL." Journal of Civil Engineering and Management 19, no. 1 (2013): 69–77. http://dx.doi.org/10.3846/13923730.2012.734858.

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This paper aims to investigate the correct prediction of load carrying capacity of reinforced concrete (RC) columns. Although substantial experimental and analytical researches have been conducted to model and simulate the response of concrete, little success has been achieved for the general description of the failures of RC columns subjected to bending and axial load. In order to predict the load carrying capacity of RC column, this paper introduces a new relationship for calculating the cohesion parameter of Drucker-Prager criterion. The relationship is developed from a parametric study of

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12

Spyridis, Panagiotis, and Oladimeji B. Olalusi. "Predictive Modelling for Concrete Failure at Anchorages Using Machine Learning Techniques." Materials 14, no. 1 (2020): 62. http://dx.doi.org/10.3390/ma14010062.

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Anchorage to concrete plays a significant role in various aspects of modern construction. The structural performance of anchors under direct tensile load can lead to failure by concrete cone breakout. Concrete related failure modes are quasi-brittle, and as such, they may develop without prior warning indications of damage, while it also exposes the bearing component to damage propagation. As such, an adequate reliability assessment of anchors against concrete cone failure is of high importance, and improved precision and minimisation of uncertainty in the predictive model are critical. This c

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13

Ahmad, Jawad, Fahid Aslam, Rebeca Martínez-García, Jesús de Prado-Gil, Nadeem Abbas, and Mohamed Hechmi EI Ouni. "Mechanical performance of concrete reinforced with polypropylene fibers (PPFs)." Journal of Engineered Fibers and Fabrics 16 (January 2021): 155892502110603. http://dx.doi.org/10.1177/15589250211060399.

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Fibers are one of the most prevalent methods to enhance the tensile capacity of concrete. Most researchers focus on steel fiber reinforced concrete which is costly and easily corroded. This study aims to examine the performance of polypropylene fiber reinforced concrete through different tests. PPFs were added into concrete blends in a percentage of 1.0%, 2.0%, 3.0%, and 4.0% by weight of cement to offset its objectionable brittle nature and improve its tensile capacity. The fresh property was evaluated through slump cone test and while mechanical strength was evaluated through compressive str

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14

Marcon, Marco, Krešimir Ninčević, Ioannis Boumakis, Lisa-Marie Czernuschka, and Roman Wan-Wendner. "Aggregate Effect on the Concrete Cone Capacity of an Undercut Anchor under Quasi-Static Tensile Load." Materials 11, no. 5 (2018): 711. http://dx.doi.org/10.3390/ma11050711.

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15

Duan, Ning, and Jiwen Zhang. "Comparison of Punching Shear Behaviour of Two-Way Concrete Slab Reinforced with CFRP Grid and Steel Bars." Journal of Physics: Conference Series 2463, no. 1 (2023): 012013. http://dx.doi.org/10.1088/1742-6596/2463/1/012013.

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Abstract Two punching shear failure tests of two-way concrete slab reinforced by CFRP grid and HRB 400 steel were studied in this paper. The reinforcement ratio of slab reinforced with CFRP grid and HRB400 is 0.33% and 0.37 respectively. The upper and lower surfaces of the concrete slab’s tensile and compressive strains, the reinforcement strains, the load deflection of the slabs, and the applied load value were analyzed. The results show that under approximately the same reinforcement ratio, the concrete slab reinforced with CFRP grid has higher bearing capacity. Both slab failure formed with

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16

Kuzhakhmetova, Elvira R. "Influence of constructive solutions on the stiffness characteristics of the rammed monolithic reinforced concrete cone-shaped piles with side and bottom forms from crushed stones." Structural Mechanics of Engineering Constructions and Buildings 17, no. 5 (2021): 500–518. http://dx.doi.org/10.22363/1815-5235-2021-17-5-500-518.

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Relevance. The article discusses the design solutions of a new pile structure, which is a monolithic reinforced concrete cone-shaped pile, enclosed in a crushed stone shell and resting on a spherical crushed stone broadening. In the course of a numerical study, carried out using the finite element method, the influence of the geometric parameters of the crushed stone formations of the pile foundation, such as the wall thickness of the crushed stone shell and the radius of the crushed stone broadening, on its bearing capacity was revealed. The aim of the study is to perform a comparative numeri

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17

Sonoda, Yoshimi. "A Numerical Study on the Pull-Out Strengths of Anchor Bolts Embedded in Concrete Using the Smoothed Particle Hydrodynamics Method." Key Engineering Materials 711 (September 2016): 1111–17. http://dx.doi.org/10.4028/www.scientific.net/kem.711.1111.

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The strength of an anchor bolt in concrete structure under pull-out load is usually designed by three possible failure modes such as fracture of anchor bolt, cone failure of concrete and bond failure between anchor bolt and concrete. In general, the design load is considered the smallest load corresponding to the aforementioned failure mechanisms. However, unexpected failure often occurs in the anchorage zone due to the complex failure or the change of failure condition. Therefore, it is important to develop the accurate analysis method of ultimate load bearing capacity of the anchor bolt. In

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18

Jonak, Józef, Robert Karpiński, Michał Siegmund, Andrzej Wójcik, and Kamil Jonak. "Analysis of the Rock Failure Cone Size Relative to the Group Effect from a Triangular Anchorage System." Materials 13, no. 20 (2020): 4657. http://dx.doi.org/10.3390/ma13204657.

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This study employs the numerical analysis and experimental testing to analyze the fracturing mechanics and the size of rock cones formed in the pull-out of a system of three undercut anchors. The research sets out to broaden the knowledge regarding: (a) the potential of the undercut anchor pull-out process in mining of the rock mass, and (b) estimating the load-carrying capacity of anchors embedded in the rock mass (which is distinctly different from the anchorage to concrete). Undercut anchors are most commonly applied as fasteners of steel components in concrete structures. The new applicati

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19

Li, Bin, Zhong Zhou Han, and Chun Yan Gao. "Experiment Research on Mechanical Behavior for Latticed Concrete-Filled Steel Tubular Tower with Three Limbs." Advanced Materials Research 368-373 (October 2011): 58–61. http://dx.doi.org/10.4028/www.scientific.net/amr.368-373.58.

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Based on the 1.5MW cone cylinder wind turbine tower widely used at present, latticed concrete-filled steel tubular (CFST) tower with three limbs was designed. The stress mechanism and failure process, hysteretic properties, bearing capacity and energy dissipation capacity were studied by quasi-static test on the tower model. The results indicate that the hysteretic loops of the latticed CFST tower with three limbs present asymmetrical plump “spindle” and there is no obvious "pinch" phenomenon, which shows good seismic performance and energy dissipation capacity; and that owing to the latticed

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20

Bol, Ertan, and Zeynep Süreyya Genç. "Pile Capacity Calculation by using SPT and CPT Data." Academic Perspective Procedia 2, no. 3 (2019): 1377–87. http://dx.doi.org/10.33793/acperpro.02.03.153.

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In this paper, a study has been carried out to estimate the ultimate capacities of concrete circular piles which are used as foundation type due to reasons such as poor ground conditions, seismicity, high or irregular loads etc. by field tests. Two cone penetration tests (CPTU), which measure the pore water pressures on alluvial soils of the Adapazarı plain, were conducted at the same locations with drillings which SPT tests were carried out. Ultimate capacities of a single pile with a specific geometry were determined by the methods proposed in the literature by using the data obtained from S

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21

Mutiara, Indra. "Analysis of Bored Pile Foundation Bearing Capacity Based on Cone Penetration Test Data (Case Study: Cilellang Weir Location)." INTEK: Jurnal Penelitian 8, no. 1 (2021): 30. http://dx.doi.org/10.31963/intek.v8i1.2772.

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The use of a bored pile foundation is an alternative in planning deep foundations. The function of this bored pile foundation is more or less the same as other deep foundations such as piles but has a slight difference in the process. The bored pile foundation begins with drilling the ground to the planned depth, followed by the installation of steel reinforcement and then concrete mortar. This study aims to evaluate the Cone Penetration Test (CPT) data on the bearing capacity of the bored pile foundation. Calculation of bearing capacity from Cone Penetration Test (CPT) data using the Schmertm

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22

Fauzan, Nadia Milla Hanifah, Willy Peratundhika E, Mutia Putri Monika, and Zev Al Jauhari. "Structural evaluation of 3-story dormitory reinforced concrete building considering soil liquefaction potential." E3S Web of Conferences 156 (2020): 05015. http://dx.doi.org/10.1051/e3sconf/202015605015.

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The liquefaction phenomenon is the increase in water pressure in the soil, which will reduce the soil strength in supporting the load and loss of binding power between its grains. Soil liquefaction usually occurs when there is a seismic movement in the soil layer due to seismic (earthquakes) loads. Therefore, the building constructed in the soil liquefaction prone area should be designed according to the standard code. However, many design consultants do not pay attention to this condition and the building still was designed as usual even the building is located on soil liquefaction prone area

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23

Sabri, Mohanad, Aleksandr Bugrov, Stanislav Panov, and Viacheslav Davidenko. "Ground improvement using an expandable polyurethane resin." MATEC Web of Conferences 245 (2018): 01004. http://dx.doi.org/10.1051/matecconf/201824501004.

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The paper describes an experiment conducted to study the effect of injection an expandablepolyurethane resin on the stabilization, settlement reduction and increasing the bearing capacity of the foundation’s soil. The experiment was carried out in sandy soil, and different types of soil investigations were carried out to investigate the effect of the resin on the soil properties beneath a concrete foundation. Results of Plate load test PLT and dynamic cone penetration test DCPT before and after the injection of the expandable resin are demonstrated and discussed in this paper.

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24

Abu-Farsakh, Murad Y., Mohsen Amirmojahedi, and George Z. Voyiadjis. "Development of Combined Pile-CPT Methods for Estimating the Ultimate Axial Capacity of PPC Piles Driven in Different Soil Categories in Louisiana." Transportation Research Record: Journal of the Transportation Research Board 2674, no. 2 (2020): 313–27. http://dx.doi.org/10.1177/0361198120907325.

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The cone and piezocone penetration tests (CPT, PCPT) have been widely acknowledged as useful in-situ testing tools for subsurface investigation, characterization of soil type, and evaluation of different soil properties. Because of similarity between the cone and pile, the evaluation of axial pile capacity was one of initial applications of the CPT/PCPT. A previous study conducted by the authors on 80 pile load tests of precast prestressed concrete (PPC) piles demonstrated that some pile-CPT methods are able to predict the ultimate axial pile capacity with better accuracy than other methods. T

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25

Kabantsev, Oleg, and Mikhail Kovalev. "Failure Mechanisms and Parameters of Elastoplastic Deformations of Anchorage in a Damaged Concrete Base under Seismic Loading." Buildings 12, no. 1 (2022): 78. http://dx.doi.org/10.3390/buildings12010078.

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The article addresses mechanisms of anchorage failure in a concrete base studied within the framework of physical experiments. The authors investigated the most frequently used types of anchors, such as the cast-in-place and post-installed ones. The anchorages were studied under static and dynamic loading, similar to the seismic type. During the experiments, the post-earthquake condition of a concrete base was simulated. Within the framework of the study, the authors modified the values of such parameters, such as the anchor embedment depth, anchor steel strength, base concrete class, and base

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26

Kwon, Minho, Jinsup Kim, Hyunsu Seo, and Wooyoung Jung. "Long-term performance of mechanically post-installed anchor systems." Advances in Structural Engineering 20, no. 3 (2016): 288–98. http://dx.doi.org/10.1177/1369433216649396.

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A mechanically post-installed anchor, which is one of the most widely used post-installed anchors in South Korea, was selected to evaluate long-term usage through a pullout test. Two types of specimens were constructed: the original specimens and freeze and thaw specimens. Mechanically post-installed anchors were installed in both of them. A freeze and thaw test method was utilized to consider the long-term usage. The compressive strength of concrete during the freeze and thaw test method is reduced by about 20% compared to that of the original concrete. From the pullout test results, the pull

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27

Mellati, Afshin. "Predicting Dynamic Capacity Curve of Elevated Water Tanks: A Pushover Procedure." Civil Engineering Journal 4, no. 11 (2018): 2513. http://dx.doi.org/10.28991/cej-03091177.

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Despite the importance of water tanks for water supplies and supporting the community resilience through the firefighting usages in catastrophic conditions, post-earthquake situations especially, a few studies have been done on seismic behavior of water tanks so far. The scope of this paper is to propose a new pushover procedure to evaluate seismic responses of elevated water tanks (EWT) supported on the concrete shaft in the form of dynamic capacity curves (i.e. base shear versus top displacement). In this regard, a series of shaft supported EWTs are simulated considering soil-structure and f

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28

Dragomirová, Janette, and Martin Palou. "Verification of the Physical and Mechanical Properties of the Heavyweight Concrete Used in the Shielding Construction of Reactor Casing at the Nuclear Power Plant." Materials Science Forum 1070 (October 13, 2022): 223–29. http://dx.doi.org/10.4028/p-4nulnu.

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The present paper deals with the determination of the mechanical and physical properties of the heavyweight concrete formulation used in the shielding construction of the reactor casing power plant. The recipe includes the use of baryte and cast-iron crumbs as fillers for the preparation of heavyweight concrete. The binder paste was obtained using CEM I 42.5 R with w/c ratio = 0.44 and a lignosulfonate-based plasticizer prepared according to the used Ralentol plasticizer's standard requirements, which is currently no more produced. The result of the concrete slump according to the S -cone was

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29

Wei, Yingjie, Duli Wang, Jiawang Li, et al. "Evaluation of Ultimate Bearing Capacity of Pre-Stressed High-Strength Concrete Pipe Pile Embedded in Saturated Sandy Soil Based on In-Situ Test." Applied Sciences 10, no. 18 (2020): 6269. http://dx.doi.org/10.3390/app10186269.

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Estimation of ultimate bearing capacity (UBC) of pre-stressed high-strength concrete (PHC) pipe pile is critical for optimizing pile design and construction. In this study, a standard penetration test (SPT), static cone penetration test (CPT) and static load test (SLT) were carried out to assess, determine and compare the UBC of the PHC pipe pile embedded in saturated sandy layers at different depths. The UBC was calculated with three methods including the JGJ94-2008 method, Meyerhof method and Schmertmann method based on in-situ blow count (N) of SPT (SPT-N) which was higher than the values r

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30

Amirmojahedi, Mohsen, and Murad Abu-Farsakh. "Evaluation of 18 Direct CPT Methods for Estimating the Ultimate Pile Capacity of Driven Piles." Transportation Research Record: Journal of the Transportation Research Board 2673, no. 9 (2019): 127–41. http://dx.doi.org/10.1177/0361198119833365.

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Cone and piezocone penetration tests (CPT, PCPT) are widely acknowledged to be useful and powerful in-situ tests for soil classification and characterization, and for evaluating different soil properties, such as strength and consolidation parameters. Due to similarity, between the cone and the pile penetration, CPT data have been used effectively for estimating ultimate pile capacity. Researchers have developed various direct CPT methods to estimate the ultimate capacity of piles ( Qp) from CPT/PCPT data (tip resistance and sleeve friction) with depth. In this study, the measured ultimate pil

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31

Tun, Zin Zin, Anat Ruangrassamee, and Qudeer Hussain. "Mitigation of Tsunami Debris Impact on Reinforced Concrete Buildings by Fender Structures." Buildings 12, no. 1 (2022): 66. http://dx.doi.org/10.3390/buildings12010066.

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Buildings located in coastal regions are prone to tsunami dangers, which often carry debris in the form of shipping containers and boats. This paper presents an approach for the design of fender structures to minimize debris impacts on buildings. The impact of shipping containers, which are categorized as large debris, is considered in the study. Since the weights of shipping containers are standardized, the impact energy can be related to other debris. For a fender structure, cone-type rubber fenders are used to resist the impact of the shipping container. Various fender reactions are conside

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32

Leung, Christopher K. Y., Angus K. F. Cheung, and Xiu Fang Zhang. "Partial Use of Pseudo-Ductile Cementitious Composites in Concrete Components to Resist Concentrated Stress." Key Engineering Materials 312 (June 2006): 319–24. http://dx.doi.org/10.4028/www.scientific.net/kem.312.319.

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The high pseudo-ductility of Engineered Cementitious Composites (ECC) makes it a particularly effective material to resist the propagation of cracks. In applications where failure is due to cracking initiated by localized stresses, the application of ECC around the stress concentrated region should result in significant improvement in the ultimate failure load. In this investigation, we will study the use of ECC in (i) the anchorage zone of post-tensioned concrete members, and (ii) the region around embedded anchor bolts in concrete blocks. For the first application, the replacement of concret

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33

Kuzhakhmetova, Elvira R. "Research of stress-deformed state of the rammed monolithic reinforced concrete cone-shaped piles with side and bottom forms from crushed stones." Structural Mechanics of Engineering Constructions and Buildings 17, no. 4 (2021): 335–56. http://dx.doi.org/10.22363/1815-5235-2021-17-4-335-356.

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Relevance. In the construction of buildings and structures, driven piles with a square cross section are most widely used. To install them in the working position, the percussion method is used. However, in cramped conditions, shock loads can lead to dangerous conditions and destruction of structures of nearby buildings. In such a situation, it is necessary to use rammed piles, since technological solutions for their construction are not associated with shock effects on the soil. One such solution is the new rammed cone-shaped pile design, which is installed without excavation. The aim of the

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34

Olson, Scott M., Russell A. Green, Samuel Lasley, et al. "Documenting Liquefaction and Lateral Spreading Triggered by the 12 January 2010 Haiti Earthquake." Earthquake Spectra 27, no. 1_suppl1 (2011): 93–116. http://dx.doi.org/10.1193/1.3639270.

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The 12 January 2010 Haiti earthquake (Mw 7.0) caused extensive damage to the Port-au-Prince region, including severe liquefaction failures along the Gulf of Gonâve coastline, along rivers north of Port-au-Prince draining into the Gulf, and a liquefaction-induced structural/bearing capacity failure of a three-story concrete hotel along the southern coast of the Gulf. During two reconnaissance missions, the authors documented ground conditions and performance at eight sites that liquefied and two sites that did not liquefy. Geotechnical characterization included surface mapping, dynamic cone pen

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35

Lu, Chi, and Yoshimi Sonoda. "An Analytical Study on the Pull-Out Strength of Anchor Bolts Embedded in Concrete Members by SPH Method." Applied Sciences 11, no. 18 (2021): 8526. http://dx.doi.org/10.3390/app11188526.

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As an important method for connecting structural members, anchor bolts have been installed in many situations. Therefore, accurate evaluation of the pull-out strength of anchor bolts has always been an important issue, considering the complicated actual installation conditions and the problem of aging deterioration of the structural members. In general, the patterns of pull-out failure of anchor bolts can be classified into three types: adhesion failure, cone failure, and bolt break. However, it sometimes shows a mixed fracture pattern, and it is not always easy to predict the accurate pull-ou

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36

Minghini, Fabio, Francesco Lippi, Nerio Tullini, and Walter Salvatore. "Pullout tests on the connection to an existing foundation of a steel warehouse rebuilt after the 2012 Emilia (Italy) earthquakes." Bulletin of Earthquake Engineering 19, no. 11 (2021): 4369–405. http://dx.doi.org/10.1007/s10518-021-01127-8.

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AbstractThe tests described in this paper were aimed at evaluating the tensile capacity of the anchorages connecting an automated pallet warehouse with an existing RC foundation. The warehouse is a new steel structure erected in the place of a previous warehouse collapsed due to the Emilia earthquake, but whose foundation remained undamaged. The investigated fastening consists of 10 post-installed, bonded threaded rods with diameter (d) and embedment depth (hef) of 20 and 500 mm, respectively. Neither anchor arrangement nor embedment depth (hef > 20d) was covered by current standards for fa

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37

Lanwer, Jan-Paul, Hendrik Weigel, Abtin Baghdadi, Martin Empelmann, and Harald Kloft. "Jointing Principles in AMC—Part 1: Design and Preparation of Dry Joints." Applied Sciences 12, no. 9 (2022): 4138. http://dx.doi.org/10.3390/app12094138.

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The study described in this contribution contains a fundamental strategy to select geometries for dry joint profiles in 3D-printed concrete constructions. A database, here called the ‘joint catalogue’, contains a variety of joint types adapted from timber, steel, and bionic connections. Weighting factors and different criteria evaluate and score the various joint profiles (e.g., manufacturability, duration of manufacturing, and mechanical behaviour). Therefore, an algorithm sums up the scores leading to the preselection of better suitable profiles. The preselected joint profiles were afterward

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Liu, Jinhao, Jinming Liu, Zhongwei Li, Xiaoyu Hou, and Guoliang Dai. "Estimating CPT Parameters at Unsampled Locations Based on Kriging Interpolation Method." Applied Sciences 11, no. 23 (2021): 11264. http://dx.doi.org/10.3390/app112311264.

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The cone penetrometer test (CPT) has been widely used in geotechnical investigations. However, how to use the limited CPT data to reasonably predict the soil parameters of the unsampled regions remains a challenge. In the present study, we adopted the Kriging method to obtain the CPT data of an unsampled location in Adelaide, South Australia, based on the collected CPT data from six soundings around this location. Interpolation results showed that the trend of the estimated parameters is consistent with the trend of parameters of the surrounding points. From the Kriging interpolation result, w

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Małek, Marcin, Marta Kadela, Michał Terpiłowski, Tomasz Szewczyk, Waldemar Łasica, and Paweł Muzolf. "Effect of Metal Lathe Waste Addition on the Mechanical and Thermal Properties of Concrete." Materials 14, no. 11 (2021): 2760. http://dx.doi.org/10.3390/ma14112760.

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The amount of steel chips generated by lathes and CNC machines is 1200 million tons per year, and they are difficult to recycle. The effect of adding steel chips without pre-cleaning (covered with production lubricants and cooling oils) on the properties of concrete was investigated. Steel waste was added as a replacement for fine aggregate in the amounts of 5%, 10% and 15% of the cement weight, which correspond with 1.1%, 2.2% and 3.3% mass of all ingredients and 0.33%, 0.66% and 0.99% volume of concrete mix, respectively. The slump cone, air content, pH value, density, compressive strength,

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Chandra, Alfian Adie, Helen Gianditha Wayangkau, and Ahmad Gifary. "Design of Leading Type Retaining Walls: Case Study in Perumnas IV Padang Bulan, Jayapura City." International Journal of Science and Society 5, no. 1 (2023): 53–63. http://dx.doi.org/10.54783/ijsoc.v5i1.625.

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Jayapura City is one of the Papua Province’s capital cities with an increasing population. One of the areas in Jayapura City, especially Perumnas IV Padang Bulan, is surrounded by hills. Infrastructure development in the densely packed Perumnas IV Padang Bulan area and increasingly narrow land has forced the local community to build infrastructure under the foot of the hills. Infrastructure development under the foot of the mountains is very prone to landslides or soil movement. There is a retaining wall planned so that the movement of the soil is restrained by the retaining wall so that no la

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Gavin, Kenneth, and Barry Lehane. "Base load – displacement response of piles in sand." Canadian Geotechnical Journal 44, no. 9 (2007): 1053–63. http://dx.doi.org/10.1139/t07-048.

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The paper presents the results of a series of laboratory and field model pile tests performed to study the factors controlling the base pressure – settlement reponse of piles in sand. One series of tests involved the installation and load testing of steel open- and closed-ended piles in loose sand contained in a large pile testing chamber. A second series involved tests on open- and closed-ended steel piles and a concrete bored pile at a dense sand test bed site. The experiments were designed to investigate the effects of pile type, sand consistency, and installation resistance on a pile’s bas

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Olumuyiwa, Falowo Olusola. "Engineering Site Investigation for Foundation Design and Construction in Shale and Sandstone Derived Soils of Okitipupa Area, Southwestern Nigeria." Journal of Applied Geology 6, no. 1 (2021): 62. http://dx.doi.org/10.22146/jag.55091.

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Geotechnical and geo-electrical investigations of Okitipupa has been carried out with the major objectives of establishing the subsoil/geology, evaluate the geotechnical properties and recommend appropriate foundation alternatives for building foundation construction. Seven borings were carried out with hand auger at two cone penetration test locations, and representative samples were collected and analyzed in the laboratory in accordance with relevant geotechnical engineering standards. In addition, six vertical electrical soundings (VES) were also conducted using Schlumberger configuration.

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Yang, Z. X., W. B. Guo, R. J. Jardine, and F. Chow. "Design method reliability assessment from an extended database of axial load tests on piles driven in sand." Canadian Geotechnical Journal 54, no. 1 (2017): 59–74. http://dx.doi.org/10.1139/cgj-2015-0518.

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The accurate prediction of axial capacity remains a challenging task for piles driven in sands. Rigorous database studies have become key tools for assessing the efficacy of design methods. This paper employs the 117 high-quality entries in the recently developed Zhejiang University – Imperial College London (ZJU–ICL) database to check for potential biases between nine prediction procedures, considering a range of factors. The analysis highlights the critical importance of addressing age after driving, open and closed ends, tension versus compression, and concrete compared to steel. It also sh

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Nguyen, Duy-Liem, Duc-Kien Thai, and Dong-Joo Kim. "Direct tension-dependent flexural behavior of ultra-high-performance fiber-reinforced concretes." Journal of Strain Analysis for Engineering Design 52, no. 2 (2017): 121–34. http://dx.doi.org/10.1177/0309324716689625.

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This research investigated the effects of direct tensile response on the flexural resistance of ultra-high-performance fiber-reinforced concretes by performing sectional analysis. The correlations between direct tensile and flexural response of ultra-high-performance fiber-reinforced concretes were investigated in detail for the development of a design code of ultra-high-performance fiber-reinforced concrete flexural members as follows: (1) the tensile resistance of ultra-high-performance fiber-reinforced concretes right after first-cracking in tension should be higher than one-third of the fi

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Vischer, William. "Low-Volume Road Flexible Pavement Design with Geogrid-Reinforced Base." Transportation Research Record: Journal of the Transportation Research Board 1819, no. 1 (2003): 247–54. http://dx.doi.org/10.3141/1819a-36.

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Reconstruction of a U.S. Department of Agriculture Forest Service campground facility in the North Dakota National Grasslands required redesign and substantial construction change because of an unstable clay subgrade. The original proposal provided for removing the old asphalt and adding additional base and a new asphalt surface. When the asphalt cement was removed, it was found that the base course had migrated into the clay subgrade, leaving the subgrade unstable. Options explored for redesign were thickened gravel base sections, lime stabilization, and geosynthetic reinforcement. The geogri

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Gutlyanskii, Vladimir, Olga Nesmelova, Vladimir Ryazanov, and Artem Yefimushkin. "Dirichlet problem with measurable data for quasilinear Poisson equations." Proceedings of the Institute of Applied Mathematics and Mechanics NAS of Ukraine 35 (October 25, 2021): 12–26. http://dx.doi.org/10.37069/1683-4720-2021-35-2.

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The study of the Dirichlet problem with arbitrary measurable data for harmonic functions in the unit disk $\mathbb D$ goes to the famous dissertation of Luzin, see e.g. its reprint \cite{L}. His result was formulated in terms of angular limits (along nontangent paths) that are a traditional tool for the research of the boundary behavior in the geometric function theory. Following this way, we proved in \cite{GNR1} Theorem 7 on the solvability of the Dirichlet problem for the Poisson equations $\triangle\, U=G$ with sources in classes $G\in L^p,$ $ p>1$, in Jordan domains with arbitrary boun

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Ndoj, Genciana, Armona Kastrati, Erisa Elezi, and Klodjan Xhexhi. "Capacity of Self-Sealing Concrete Embedding Crystalline Admixture." European Journal of Engineering and Technology Research 7, no. 2 (2022): 76–80. http://dx.doi.org/10.24018/ejeng.2022.7.2.2762.

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Concrete is one of the most intelligent and widely utilized man-made materials in the construction industry. Despite this, even high-quality concrete is susceptible to porosity, which reduces its serviceability period. Furthermore, there is an increasing need to increase longevity due to environmental exposure such as soil moisture, corrosive outside elements, or structural defects forming in the surface of concrete. The use of crystalline admixtures in concrete is one of the many approaches to reducing these risks. When crystalline admixtures come into contact with water, they form thin cryst

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Chen, Xu Jun, Qiao Yang, and Jun Guo. "Discussion on Formula for the Flexural Capacity of Concrete Beams Strengthened with FRP." Advanced Materials Research 1094 (March 2015): 278–81. http://dx.doi.org/10.4028/www.scientific.net/amr.1094.278.

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The flexural capacity formula of reinforced concrete structure strengthened with FRP in Code for Design of strengthening concrete structure(GB 50367—2013) was introduced, and the rationality of the formula was analyzed. The results showed that the concrete compression height is independent of the tension strength of Fiber Reinforced Plastic (FRP), and the concrete compression height decreases with the increase of the tension strain of FRP, which is contrary to fact. The flexural capacity formula of reinforced concrete structure strengthened with FRP in Code for Design of strengthening concrete

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Li, Chun Xia, Zhi Sheng Ding, and Shi Lin Yan. "Analysis on Flexural Capacity of FRP Reinforced Concrete Members." Advanced Materials Research 446-449 (January 2012): 98–101. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.98.

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The balanced reinforcement ratio of FRP-reinforced concrete members and the flexural capacity under two different failure modes (concrete crushing and FRP rupture) are established, based on the analysis on flexural capacity of steel-reinforced concrete members in current concrete code. The effect of material properties on the balanced ratio, the variation of flexural capacity with different reinforcement ratio and a simplified nominal flexural capacity under FRP-rupture failure are derived.

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Yi, Wei Jian, and Yan Mei Lv. "Experimental Study on Shear Failure of High-Strength Concrete Beams with High-Strength Stirrups." Key Engineering Materials 400-402 (October 2008): 857–63. http://dx.doi.org/10.4028/www.scientific.net/kem.400-402.857.

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19 RC beams with shear span-to-depth equal to 3 were tested under a stiff testing facility, and complete load-deflection curves including the post-peak branch were obtained. Based on the test results the effects of concrete strength, stirrups strength, inclined stirrup angle, the amount of longitudinal reinforcement on failure mode, shear ductility index and shear capacity were analyzed. The test results were compared with the shear design approaches of Chinese Code and American Code. The results indicate that the shear failure of beam with appropriate web reinforcement has finite ductility. H

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