Bibliografias temáticas / Analysis of moment structures

Literatura científica selecionada sobre o tema "Analysis of moment structures"

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Publicado: 25 de julho de 2024

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Artigos de revistas sobre o assunto "Analysis of moment structures"

1

Arbuckle, James L. "AMOS: Analysis of Moment Structures". American Statistician 43, n.º 1 (fevereiro de 1989): 66. http://dx.doi.org/10.2307/2685178.

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Thanh Quang, Nguyen, e Nguyen Thuy Tien. "Enhancing structural health monitoring of bridge beams through spectral moment analysis". Transport and Communications Science Journal 74, n.º 4 (15 de maio de 2023): 400–412. http://dx.doi.org/10.47869/tcsj.74.4.2.

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Investigating the occurrence of defects in structures is currently a major issue of significant interest. In this paper, we present experimental research findings on the relationship between the moments of the power spectrum and the presence of damage in bridge beam structures. The study is based on analysing the random oscillation signal of the structure under the effect of random displacement loads. The results demonstrate that the value of the spectral moment is a sensitive feature to abnormal changes inside the structure. As a result, the output obtained from our study suggests using the spectral moment parameter as a new characteristic quantity for monitoring changes in bridge structures. Compared to traditional quantities like deflection, natural frequency, and mode shape, the value of the spectral moment can be more accurately determined. In the future, the spectral moment value can be extended to evaluate different types of structures under complex load conditions.
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E, Shiyuan, Yanzhong Wang, Bin Xie e Fengxia Lu. "An Adaptive Kriging-Based Fourth-Moment Reliability Analysis Method for Engineering Structures". Applied Sciences 14, n.º 8 (12 de abril de 2024): 3247. http://dx.doi.org/10.3390/app14083247.

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The fourth-moment method can accurately perform a reliability analysis when it is challenging to determine the distribution of the random variable due to limited available samples. This method only utilizes the first four moments of the random variable and constructs the fourth-moment reliability index. However, it cannot be applied in engineering cases where the state function cannot be expressed explicitly, as it becomes difficult to establish a correlation between the first four moments of the random variable and the state function. Simplifying the state function forcefully may result in significant reliability prediction errors. To address this limitation, this study proposes an adaptive Kriging-based fourth-moment method for reliability analysis under complex state equations. The proposed method demonstrates better applicability and efficiency compared to existing methods. Several numerical examples are provided to validate the effectiveness and accuracy of the proposed method.
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Arbuckle, James L. "Computer announcement amos: Analysis of moment structures". Psychometrika 59, n.º 1 (março de 1994): 135–37. http://dx.doi.org/10.1007/bf02294272.

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5

Kou, Su Xia, e Nan Guo. "Analysis Method of Secondary Moment in Prestressed Plane Structures". Applied Mechanics and Materials 105-107 (setembro de 2011): 953–56. http://dx.doi.org/10.4028/www.scientific.net/amm.105-107.953.

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In prestressed plane structures, tensioning prestressing tendons in one direction will bring primary moment in another direction, so the method of calculating secondary moment by removing the primary moment from the resultant moment is not applicable for plane structures, in which the primary moment is calculated by prestressing force multiplying the distance from prestressing force to neutral axis of section. The reason for this method can not be used for calculating secondary moment in plane structures is analyzed. The method for calculating secondary moment in plane structures is presented.
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Bondy, K. Dirk. "A More Rational Approach to Capacity Design of Seismic Moment Frame Columns". Earthquake Spectra 12, n.º 3 (agosto de 1996): 395–406. http://dx.doi.org/10.1193/1.1585890.

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Inelastic time history analyses typically indicate that the traditional sub-assembly “capacity” approach used in the design of ductile moment frames grossly underestimates the maximum moments experienced by the columns during a maximum credible earthquake. In addition, these analyses predict that the maximum column demand moments often occur near the mid-height of concrete structures, whereas a conventional elastic analysis predicts maxima at the lowest levels of these structures. Incremental displacement analyses using modal properties and displacements predicted by a maximum credible response spectrum should be used to more accurately predict the maximum anticipated column demand moments in the analysis of existing structures or the design of new structures.
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A. Badir e M. Badir. "Column Analogy in Multi-Cell Structures with Fixed Columns". Electronic Journal of Structural Engineering 12 (1 de janeiro de 2012): 95–107. http://dx.doi.org/10.56748/ejse.12156.

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A procedure is presented for the analysis of multi-cell structures such as multi-span and mul-ti-storey frames by use of the method of column analogy, normally applicable to analysis of single-span and closed frames. The multi-cell structure is first divided into a number of cells each of which can be readily ana-lyzed by column analogy for the applied external loads. A number of simultaneous equations are then written to restore continuity of the isolated cells. Certain moment-coefficients are computed also by column analogy, and used in writing the continuity equations. Solution of these equations yields moment corrections which are superimposed to the moments of the isolated cells to arrive at the final bending moments of the multi-cell structure. The procedure is presented for the analysis of frames with fixed columns, and is applied for the analysis of three examples in order to illustrate the details of the solution. Results obtained are in excellent agreement with values calculated using the stiffness method.
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Cernescu, Anghel, Jani Romanoff e Heikki Remes. "The Effect of the Secondary Bending Moment on the Fracture Strength Evaluation of the Laser Welded Joints from a Web Core Sandwich Structure". Key Engineering Materials 601 (março de 2014): 124–28. http://dx.doi.org/10.4028/www.scientific.net/kem.601.124.

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During the last period the interest on the sandwich structures has became more favorable due to the strength to weight ratio. In the same manner, in ship building field the lightweight structures became more and more attractive. With increasing the usage fields has increased the need to study the behavior of these structures. In general all the sandwich structures loaded in bending shows an effect of the secondary bending moment. In the case of web core sandwich panels used in ship structures has been observed a pronounced effect of the secondary bending moment on laser welded joints. Considering this, the paper presents an analysis of the fracture strength of laser welded joints of a web core sandwich structure, due to the effect of secondary bending moment. In the first part, the paper analytical formulation of the secondary bending moments and their effect on welded joints. This effect is explained on the basis of angle α defined in the paper and which depends on the thickness of the face plate, the thickness of the web plate and respectively the height. The paper continues with a numerical analysis of the stress and strain state from a web core sandwich beam and where also it is analyzed the effect of the secondary bending moment on the fracture strength of laser welded joints. Based on the carried out study it was observed that for high thickness of the web plate the effect of secondary bending moments is the overloading of the welded joints, instead for small thickness of the web plate the effect of the secondary bending moments can be of the unloading the welded joints. However, a small thickness of the web plate can affect the rigidity of the structure. Therefore, based on this study was proposed a solution to reduce the secondary bending moment without reducing the stiffness of the sandwich panel. The analysis conducted in this paper can be a design criterion for the web core sandwich structures.
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Choi, Dong-Ho, Gi-Nam Kim e Peter M. Byrne. "Evaluation of moment equation in the 2000 Canadian highway bridge design code for soil–metal arch structures". Canadian Journal of Civil Engineering 31, n.º 2 (1 de fevereiro de 2004): 281–91. http://dx.doi.org/10.1139/l03-097.

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This paper evaluates the moment equation in the 2000 Canadian highway bridge design code (CHBDC) for soil–metal arch structures. This equation is adopted from Duncan's moment equation (1978), which is based on his finding from finite element analyses that the maximum moment occurs at the quarter point of soil-metal structures. However, finite element analyses carried out for this study demonstrate that the maximum moment in soil–metal arch structures with spans greater than approximately 11 m occurs at the crown point. In this study, the location and magnitude of the maximum moment was examined for soil–metal arch structures having spans of 6–20 m under three construction stages; backfill up to the crown, backfill up to the cover depth, and live loading. Based on the location of the maximum moment, two sets of moment equations dependant on span length were found necessary. Moment coefficients and moment reduction factors in moment equations are proposed from the results of numerous finite element analyses for semi-circular arch and part-arch types of soil–metal structures considering the various design variables, such as span length, structural shapes, section properties, and backfill conditions. The validity of the coefficients and reduction factors in the moment equation of the 2000 CHBDC is investigated by comparison with those proposed in this study. The comparison demonstrates that the moment equation of the 2000 CHBDC is still valid and a little conservative. The effects of design variables on the variations of moments of soil–metal arch structures during construction stages are also examined.Key words: soil–metal arch structures, moment equations, CHBDC, soil-structure interaction.
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Dickinson, Robert R., e Gordon J. Savage. "Automated second moment analysis of large structures with random excitations". Computers & Structures 27, n.º 5 (1987): 657–69. http://dx.doi.org/10.1016/0045-7949(87)90082-4.

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Teses / dissertações sobre o assunto "Analysis of moment structures"

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Liu, Jinbiao. "Earthquake analysis of steel moment resisting frame structures". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ27000.pdf.

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Metin, Asli. "Inelastic Deformation Demands On Moment-resisting Frame Structures". Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607423/index.pdf.

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Interstory drift ratio is an important parameter for the determination of the structural performance under strong ground motions. A probabilistic procedure is proposed in this study to estimate the inelastic maximum interstory drift ratio. The procedure considers the uncertainties associated with the strong ground motions and structural behavior. Elastic and inelastic response history analyses of reinforced-concrete, moment-resisting frames are used together with a near-fault strong ground motion data set to derive the probabilistic procedure. The elastic and inelastic response history analysis results are evaluated in a statistical manner to present the probabilistic approach proposed here. The method presented basically makes use of the fundamental mode properties of the frame systems and modifies the elastic maximum interstory drift ratio by a modifying factor that is determined from the idealized lateral strength capacity (pushover analysis) of the structure. As a part of this thesis, the performance of recently improved nonlinear static procedures that are used in estimating the deformation demands on structural systems are also evaluated using the single- and multi-degree-of-freedom response history analyses results obtained during the conduct of the study.
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Parsa, Amanullah. "EFFECT OF BUILDING ORIENTATION ON STRUCTURAL RESPONSE OF REINFORCED CONCRETE MOMENT RESISTING FRAME STRUCTURES". OpenSIUC, 2020. https://opensiuc.lib.siu.edu/theses/2698.

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In time history analysis of structures, the geometric mean of two orthogonal horizontal components of ground motion in the as-recorded direction of sensors, have been used as measure of ground motion intensity prior to the 2009 NEHRP provision. The 2009 NEHRP Provisions and accordingly the seismic design provisions of the ASCE/SEI 7-10, modified the definition of ground motion intensity measure from geometric mean to the maximum direction ground motion, corresponding to the direction that results in peak response of the oscillator. Maximum direction response spectra are assumed to envelope the range of maximum possible responses over all nonredundant rotation angles. Two assumptions are made in the use maximum ground motion as the intensity measure: (1) the structure’s strength and stiffness properties are identical in all directions and (2) azimuth of the maximum spectral acceleration coincides with the one of the principal axes of the structure. The implications of these assumptions are examined in this study, using 3D computer models of multi-story structures having symmetric and asymmetric layouts and elastic vibration period of 0.2 second and 1.0 second subjected to a set of 25 ground-motion pairs recorded at a distance of more than 20 km from the fault. The influence of the ground-motion rotation angle on structural response (here lateral displacement and story drift) is examined to form benchmarks for evaluating the use of the maximum direction (MD) ground motions. The results of this study suggest that while MD ground motions do not always result in largest structural response, they tend to produce larger response than the as-recorded ground motions. On the other hand, more research on non-linear seismic time history analysis is recommended, especially for asymmetric layout plan buildings.
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梁少江 e Siu-kong Leung. "Analysis of shear/core wall structures using a linear moment beam-typeelement". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31213352.

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Leung, Siu-kong. "Analysis of shear/core wall structures using a linear moment beam-type element /". Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B18155376.

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Emidio, Fernando. "Analysis of multidimensional radiating structures by the spatial Fourier transform and computational electromagnetics". Thesis, Saint-Etienne, 2013. http://www.theses.fr/2013STET4011.

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Ce manuscrit présente les travaux de recherche qui concernent l'analyse et la synthèse de structures rayonnantes multidimensionnelles en utilisant une approche qui combine méthode des moments et la transformée de Fourier spatiale. La distribution source (courant électrique) et le diagramme de rayonnement sont liées par la transformée de Fourier spatiale - la théorie de la Relation de Fourier (FR). La distribution des courants est déterminée en utilisant une méthode d'analyse en électromagnétisme (EM), à savoir la Méthode des Moments (MoM). Des travaux antérieurs utilisant la théorie FR ont été réalisés par d'autres auteurs sur des réseaux linéaires - uniformément espacés ou non uniformes. Les sources radiantes élémentaires des dipoles électriques filaires. Les travaux actuels se développent en utilisant la théorie FR à deux et trois dimensions sur des structures réelles. En utilisant la méthode MoM nous pouvons prendre en compte le rayon du fil, sur n'importe quel point d'excitation (générateur de tension ou onde incidente) et le couplage mutuel entre les éléments, créant ainsi un modèle électromagnétique réaliste pour la structure d'antenne
This manuscript presents the research work in the analysis and synthesis of multidimensional radiating structures using an approach that combines Method of Moments and Spatial Fourier Transform. The source distribution (electric current) and radiation pattern are related by the spatial Fourier Transform - Fourier Relation theory (FR). Current distribution is determined using Computational Electromagnetics (CEM), namely Method of Moments (MoM). Previous work using FR theory was done by other authors on linear arrays – uniformly or nonuniformly spaced elemental radiators laid on a straight line. Present work expands FR theory to two and three dimensions on real-world structures. By using MoM we can take into account wire radius, excitation on any point (voltage generator or incident wave) and mutual coupling between elements, thus creating a realistic electromagnetic model for the antenna structure
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Liu, Jinbiao Carleton University Dissertation Engineering Civil and Environmental. "Earthquake analysis of steel moment resisting frame structure". Ottawa, 1997.

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8

Kruep, Stephanie Jean. "Using Incremental Dynamic Analysis to Visualize the Effects of Viscous Fluid Dampers on Steel Moment Frame Drift". Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/34122.

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This thesis presents the details of a study regarding both the use of linear viscous fluid dampers in controlling the interstory drift in steel moment frames, and the use of incremental dynamic analysis as a method of visualizing the behavior of these moment frames when subjected to seismic load effects. Models of three story and nine story steel moment frames were designed to meet typical strength requirements for office buildings in Seattle, Washington. These models were intentionally designed to violate seismic interstory drift restrictions to test the ability of the linear viscous fluid dampers to reduce these drifts to the point of code compliance. Dampers were included in one bay of every story in each model. These devices were used to produce total structural damping ratios of 5%, 10%, 20%, and 30% of critical. Undamped, traditional stiffness controlled models of both three stories and nine stories were also created for comparison purposes. Incremental dynamic analysis was used to subject these models to ten ground motions, each scaled to twenty incremental levels. Two new computer applications were written to facilitate this process. The results of these analyses were studied to determine if the linear viscous fluid dampers were able to cause compliance with codified drift limits. Also, incremental dynamic analysis plots were created to examine the effects of the dampers on structural behavior as damping increased from inherent to 30% of critical. It was found that including linear viscous fluid dampers in steel moment frame design can satisfactorily control interstory drift, and incremental dynamic analysis is a beneficial tool in visualizing dynamic structural behavior.
Master of Science
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Lan, Shuang Wen. "Stochastic finite element analysis of structures with elementary stiffness matrix decomposition method and exponential polynomial moment method". Thesis, University of Macau, 2010. http://umaclib3.umac.mo/record=b2148241.

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Gudu, Tamer. "Analysis And Design Of Microstrip Printed Structures On Electromagnetic Bandgap Substrates". Phd thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/3/12609417/index.pdf.

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In the first part of the thesis, the 2-D structures in stratified media are analyzed using an efficient MoM technique. The method is used to optimize transmitted or reflected electric fields from the 2-D structures. The genetic algorithm is used in the optimization process. In the second part a 3-D MoM technique is implemented to analyze multilayered structures with periodically implanted material blocks. Using the method, the dispersion and reflection characteristics of the structure are calculated for different configurations. The results are compared with the results found in the literature and it is seen that they are in good agreement. Asymptotic Waveform Evaluation (AWE) technique is utilized to obtain the Pade approximation of the solution in terms of frequency. The high order derivatives that are required by the AWE technique are calculated through Automatic Differentiation technique. Using the AWE method, the dispersion diagram and reflection characteristics of the periodic structures are obtained in a shorter time. The results are compared with the ones obtained through direct calculation and it is seen that they are in perfect agreement. The reflection coefficients that are obtained from the 3-D MoM procedure are used to calculate Green&rsquo
s functions that approximate electric field of an infinitesimal dipole on the periodically implanted substrate. Using the calculated Green&rsquo
s functions and the spectral domain MoM procedure, dispersion characteristics of a microstrip line on the periodically implanted substrate are obtained.
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Livros sobre o assunto "Analysis of moment structures"

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United States. National Aeronautics and Space Administration., ed. Optimi[z]ation of aerospace structures: Final technical report. Brook Park, Ohio: The Ohio Aerospace Institute, 1994.

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2

Nazri, Fadzli Mohamed. Prediction of the collapse load for moment-resisting stell frame structure under earthquake forces. Kuala Lumpur: Penerbit USM Press, 2015.

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3

Adegeest, Leonardus Johannes Maria. Nonlinear hull girder loads in ships =: Niet-lineaire belastingen in een scheepsdoorsnede. Delft: Technische Universiteit Delft, Fac. Werktuigbouwkunde en Maritieme Techniek, 1995.

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4

H, Starnes James, United States. National Aeronautics and Space Administration. e AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference (1998 Long Beach, Calif.), eds. Effect of curvature on the impact damage characteritiscs and residual strength of composite plates: Presented at 39th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference : Long Beach, California, April 20-23, 1998. [Washington, DC: National Aeronautics and Space Administration, 1998.

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5

Eisley, Joe G., e Anthony M. Waas. Analysis of Structures. Chichester, UK: John Wiley & Sons, Ltd, 2011. http://dx.doi.org/10.1002/9781119993278.

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Fuchs, Maurice Bernard. Structures and Their Analysis. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-31081-7.

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Datta, T. K. Seismic Analysis of Structures. Chichester, UK: John Wiley & Sons, Ltd, 2010. http://dx.doi.org/10.1002/9780470824634.

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Sathyamoorthy, M. Nonlinear analysis of structures. Boca Raton, FL: CRC Press, 1998.

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Datta, T. K. Seismic analysis of structures. Singapore: John Wiley & Sons Asia, 2010.

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Price, N. J. Analysis of geological structures. Cambridge: Cambridge University Press, 1989.

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Capítulos de livros sobre o assunto "Analysis of moment structures"

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Hejazi, Farzad, e Keyhan Karimzadeh. "Moment Resistance System". In Analysis Procedure for Earthquake Resistant Structures, 1–226. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8839-1_1.

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Podder, Debabrata, e Santanu Chatterjee. "Moment Distribution Method". In Introduction to Structural Analysis, 327–52. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003081227-22.

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Spencer, W. J. "The Moment Distribution Method". In Fundamental Structural Analysis, 119–46. New York, NY: Springer New York, 1988. http://dx.doi.org/10.1007/978-1-4757-2006-8_5.

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Spencer, W. J. "The Moment Distribution Method". In Fundamental Structural Analysis, 119–46. London: Macmillan Education UK, 1988. http://dx.doi.org/10.1007/978-1-349-19582-4_5.

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Derucher, Kenneth, Chandrasekhar Putcha, Uksun Kim e Hota V. S. GangaRao. "Shear Force and Bending Moment Diagrams for Beams". In Static Analysis of Determinate and Indeterminate Structures, 55–66. New York: CRC Press, 2021. http://dx.doi.org/10.1201/9781003246633-5.

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Lu, Zhao-Hui, e Yan-Gang Zhao. "Methods of Moment for System Reliability". In Reliability-Based Analysis and Design of Structures and Infrastructure, 451–78. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003194613-29.

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Jia, Yueqiao, e Jeffrey Chiang Choong Luin. "Finite Element Analysis of Reinforced Concrete Slab-Rectangular Column Connections Using ABAQUS". In Advances in Frontier Research on Engineering Structures, 33–44. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8657-4_4.

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AbstractRectangular columns used in flat-slab structures run the risk of punching shear damage due to stress concentrations, especially when bending moments and vertical forces act together at the connections. Using the finite element analysis method, the existing experiments are numerically simulated using the 3D modeling software ABAQUS, and describe the cracking behavior of concrete using the concrete damaged plasticity model. The accuracy of the numerical simulation was calibrated by load–displacement curves and crack patterns using the experimental results. The study of the model was set up with different moment-to-shear ratios and outputs the trend of the average shear stress on the eccentric force side of the slab. The moment transfer coefficients are derived through the equation of ACI-318 and compared with the code values. A safe range of side length ratios is proposed to reduce the risk of punching shear damage from the use of rectangular columns. This provides a reference for practical design, but more experiments are needed to support the proposed recommendations.
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Jia, Yueqiao, e Jeffrey Choong Luin Chiang. "Finite Element Analysis of Punching Shear of Reinforced Concrete Mushroom Slab-Column Connections Using ABAQUS". In Advances in Frontier Research on Engineering Structures, 83–91. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8657-4_8.

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AbstractCapital is one of the common measures to strengthen the slab-column connections. It can make the joint's load capacity increase. However, when the connection is subjected to the unbalanced bending moment, the reduction effect of the capital on the bending moment is to be studied. Nonlinear finite element analysis is performed on reinforced concrete slabs with column capital for various moment-to-shear (M/V) ratios. The effect of capital radius on the punching shear resistance of slab-column connections is investigated. The 3D finite element modeling is performed using the concrete damage plasticity model and concrete constitutive equations. The concrete damage plasticity model parameters are calibrated by the experiment results of specimens. Increasing the radius of capital can improve the bearing capacity of nodes and reduce the moment transfer effect obviously.
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Dong, P., J. Zhang e F. W. Brust. "Fracture mechanics analysis of moment frame joint incorporating welding effects". In Behaviour of Steel Structures in Seismic Areas, 675–80. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003211198-92.

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Scott, R. H., R. T. Whittle e A. R. Azizi. "Measurement of Moment Redistribution Effects in Reinforced Concrete Beams". In Experimental Analysis of Nano and Engineering Materials and Structures, 439–40. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6239-1_218.

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Trabalhos de conferências sobre o assunto "Analysis of moment structures"

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Nastar, Navid, James Anderson, Gregg Brandow e Robert Nigbor. "An Analysis of Low-Cycle Fatigue in Steel Moment Frames". In Structures Congress 2010. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41130(369)321.

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Purasinghe, Rupa, Cuong Nguyen e Kenneth Gebhart. "Progressive Collapse Analysis of a Steel Building with Pre-Northridge Moment Connections". In Structures Congress 2008. Reston, VA: American Society of Civil Engineers, 2008. http://dx.doi.org/10.1061/41016(314)97.

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Hain, Alexandra, Arash Esmaili Zaghi e Angela Lanning. "Moment-Curvature Analysis of Hybrid Concrete-Filled Fiber Reinforced Polymer Tube Columns". In Structures Congress 2018. Reston, VA: American Society of Civil Engineers, 2018. http://dx.doi.org/10.1061/9780784481332.030.

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Lignos, D. G., C. Putman, F. Zareian e H. Krawinkler. "Seismic Evaluation of Steel Moment Frames and Shear Walls Using Nonlinear Static Analysis Procedures". In Structures Congress 2011. Reston, VA: American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/41171(401)191.

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El-Tawil, Sherif, Kapil Khandelwal, Sashi Kunnath e H. S. Lew. "Macro Models for Progressive Collapse Analysis of Steel Moment Frame Buildings". In Research Frontiers at Structures Congress 2007. Reston, VA: American Society of Civil Engineers, 2007. http://dx.doi.org/10.1061/40944(249)66.

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Graf, Timothy, James O. Malley, Mark Sinclair, James Newell, Colin Blaney, Moisey Fraynt, Chia-Ming Uang e Tamer Ahmed. "Seismic Analysis and Rehabilitation of a 15 Story Pre-Northridge Steel Moment Resisting Frame Building". In Structures Congress 2011. Reston, VA: American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/41171(401)73.

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ZHI, Wenzheng, e Shaofen LIN. "Total Longitudinal Moment Calculation and Reliability Analysis of Yacht Structures". In The 2015 International Conference on Mechanical Engineering and Control Systems (MECS2015). WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789814740616_0001.

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"Analytical Study of Torsional Moment Induced by Shifting of Shear Center of RC Cross Sections". In SP-237: Finite Element Analysis of Reinforced Concrete Structures. American Concrete Institute, 2006. http://dx.doi.org/10.14359/18253.

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Chiewanichakorn, Methee, Luis Toranzo e Aaron Reynolds. "Seismic Retrofit of Pre-Northridge Steel Moment Frame Building Using Nonlinear Static Analysis per ASCE 41-06". In Structures Congress 2011. Reston, VA: American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/41171(401)70.

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Soni, Prabhat, Prakash Sangamnerkar e S. K. Dubey. "Analysis of natural time period of moment resisting frame buildings". In PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON SUSTAINABLE MATERIALS AND STRUCTURES FOR CIVIL INFRASTRUCTURES (SMSCI2019). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5127140.

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Relatórios de organizações sobre o assunto "Analysis of moment structures"

1

Butler, Chalmers M. Analysis and Design of Antenna Structures - Diakoptic Theory and the Moment Method. Fort Belvoir, VA: Defense Technical Information Center, novembro de 1990. http://dx.doi.org/10.21236/ada230838.

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2

Bent, A. L., e P. Voss. Seismicity in the Labrador-Baffin Seaway and surrounding onshore regions. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/321857.

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Studying earthquakes in Baffin Bay and the surrounding regions is challenging. There is no knowledge of earthquake activity in this region prior to 1933 when a moment magnitude (MW) 7.4 earthquake occurred in Baffin Bay. With improved instrumentation, increased seismograph coverage in the north, and modern analysis techniques, knowledge and understanding of earthquakes in the Baffin region is improving. Active seismic zones include Baffin Bay, the east coast of Baffin Island, and the Labrador Sea, separated by areas of low seismicity. Focal-mechanism solutions show a mix of faulting styles, predominantly strike-slip and thrust. Regional stress-axes orientations show more consistency, which suggests that activity is occurring on previously existing structures in response to the current stress field. There is little correlation between earthquake epicentres in Baffin Bay and mapped structures. Glacial isostatic adjustment may be a triggering mechanism for earthquakes in the Baffin region, but modelling efforts have yielded equivocal results.
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3

Morgan, Brian G., e Yahya C. Kurama. "Friction-Damped Unbonded Post-Tensioned Precast Concrete Moment Frame Structures for Seismic Regions". Precast/Prestressed Concrete Institute, 2007. http://dx.doi.org/10.15554/pci.rr.seis-005.

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Kong, Tai. Study of rare earth local moment magnetism and strongly correlated phenomena in various crystal structures. Office of Scientific and Technical Information (OSTI), dezembro de 2016. http://dx.doi.org/10.2172/1409191.

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Hammad, Ali, e Mohamed Moustafa. Seismic Behavior of Special Concentric Braced Frames under Short- and Long-Duration Ground Motions. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, dezembro de 2019. http://dx.doi.org/10.55461/zont9308.

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Over the past decade, several long-duration subduction earthquakes took place in different locations around the world, e.g., Chile in 2010, Japan in 2011, China in 2008, and Indonesia in 2004. Recent research has revealed that long-duration, large-magnitude earthquakes may occur along the Cascadia subduction zone of the Pacific Northwest Coast of the U.S. The duration of an earthquake often affects the response of structures. Current seismic design specifications mostly use response spectra to identify the hazard and do not consider duration effects. Thus, a comprehensive understanding of the effect of the duration of the ground motion on structural performance and its design implications is an important issue. The goal of this study was to investigate how the duration of an earthquake affects the structural response of special concentric braced frames (SCBFs). A comprehensive experimental program and detailed analytical investigations were conducted to understand and quantify the effect of duration on collapse capacity of SCBFs, with the goal of improving seismic design provisions by incorporating these effects. The experimental program included large-scale shake table tests, and the analytical program consisted of pre-test and post-test phases. The pre-test analysis phase performed a sensitivity analysis that used OpenSees models preliminarily calibrated against previous experimental results for different configuration of SCBFs. A tornado-diagram framework was used to rank the influence of the different modeling parameters, e.g., low-cycle fatigue, on the seismic response of SCBFs under short- and long-duration ground motions. Based on the results obtained from the experimental program, these models were revisited for further calibration and validation in the post-test analysis. The experimental program included three large-scale shake-table tests of identical single-story single-bay SCBF with a chevron-brace configuration tested under different ground motions. Two specimens were tested under a set of spectrally-matched short and long-duration ground motions. The third specimen was tested under another long-duration ground motion. All tests started with a 100% scale of the selected ground motions; testing continued with an ever-increasing ground-motion scale until failure occurred, e.g., until both braces ruptured. The shake table tests showed that the duration of the earthquake may lead to premature seismic failure or lower capacities, supporting the initiative to consider duration effects as part of the seismic design provisions. Identical frames failed at different displacements demands because of the damage accumulation associated with the earthquake duration, with about 40% reduction in the displacement capacity of the two specimens tested under long-duration earthquakes versus the short-duration one. Post-test analysis focused first on calibrating an OpenSees model to capture the experimental behavior of the test specimens. The calibration started by matching the initial stiffness and overall global response. Next, the low-cycle fatigue parameters were fine-tuned to properly capture the experimental local behavior, i.e., brace buckling and rupture. The post-test analysis showed that the input for the low-cycle fatigue models currently available in the literature does not reflect the observed experimental results. New values for the fatigue parameters are suggested herein based on the results of the three shake-table tests. The calibrated model was then used to conduct incremental dynamic analysis (IDA) using 44 pairs of spectrally-matched short- and long-duration ground motions. To compare the effect of the duration of ground motion, this analysis aimed at incorporating ground-motion variability for more generalized observations and developing collapse fragility curves using different intensity measures (IMs). The difference in the median fragility was found to be 45% in the drift capacity at failure and about 10% in the spectral acceleration (Sa). Using regression analysis, the obtained drift capacity from analysis was found to be reduced by about 8% on average for every additional 10 sec in the duration of the ground motion. The last stage of this study extended the calibrated model to SCBF archetype buildings to study the effect of the duration of ground motion on full-sized structures. Two buildings were studied: a three-story and nine-story build that resembled the original SAC buildings but were modified with SCBFs as lateral support system instead of moment resisting frames. Two planer frames were adopted from the two buildings and used for the analysis. The same 44 spectrally-matched pairs previously used in post-test analysis were used to conduct nonlinear time history analysis and study the effect of duration. All the ground motions were scaled to two hazard levels for the deterministic time history analysis: 10% exceedance in 50 years and 2% exceedance in 50 years. All analysis results were interpreted in a comparative way to isolate the effect of duration, which was the main variable in the ground-motion pairs. In general, the results showed that the analyzed SCBFs experienced higher drift values under the long-duration suite of ground motions, and, in turn, a larger percentage of fractured braces under long-duration cases. The archetype SCBFs analysis provided similar conclusions on duration effects as the experimental and numerical results on the single-story single-bay frame.
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Statman, Mary A., Monica Gribben, Dick A. Harris e Gene R. Hoffman. Occupational Analysis and Job Structures. Fort Belvoir, VA: Defense Technical Information Center, fevereiro de 1996. http://dx.doi.org/10.21236/ada309141.

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Ngan, K., S. Meacham e P. J. Morrison. Elliptical vortices in shear: Hamiltonian moment formulation and Melnikov analysis. Office of Scientific and Technical Information (OSTI), julho de 1995. http://dx.doi.org/10.2172/97099.

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Ozguner, U. Analysis and Control of Interconnected Structures. Fort Belvoir, VA: Defense Technical Information Center, janeiro de 1996. http://dx.doi.org/10.21236/ada329628.

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Sattar, Siamak. Sensitivity Analysis of Reinforced Concrete Structures:. Gaithersburg, MD: National Institute of Standards and Technology, 2023. http://dx.doi.org/10.6028/nist.tn.2254.

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Kaufmann, Eric J., John W. Fisher, Roger M. Di Jr Julio e John L. Gross. Failure analysis of welded steel moment frames damaged in the Northridge Earthquake. Gaithersburg, MD: National Institute of Standards and Technology, 1997. http://dx.doi.org/10.6028/nist.ir.5944.

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