Elasto-plastic analysis of coupled shear walls

Pekau, O. A.; Gocevski, Vladimir

doi:10.1016/0141-0296(81)90034-1

Cited by 5 publications

(2 citation statements)

References 2 publications

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“…This assumption is usually warranted since, in practice, flexible connecting beams are desirable for both dynamic response and ductile failure mode considerations. However, several studies [14][15][16] have shown that plasticity imposes a severe ductility requirement on the connecting beams which is unlikely to be fulfilled in practice. Accordingly, it has been suggested 17,18 that the analysis should be terminated if a specified beam ductility limit is exceeded.…”

Section: Elasto-plastic Analysismentioning

confidence: 99%

Soil-Structure Interaction in Tall Buildings by a Discrete Force Method.

Nadjai

Johnson²

1999

Proceedings of the Institution of Civil Engineers - Structures

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The importance of base flexibility on the elasto-plastic behaviour of spatial shear walls subjected to any type of loading was examined. An analysis of elasto-plastic spatial shear walls was developed using a discrete force method, which models the shear walls as a system of interconnected discrete structural elements and the base flexibility by effective rotational and vertical elastic stiffnesses K b and K v , respectively. As the magnitudes of these stiffnesses depend on the properties of the supporting soil and also on the characteristics of the foundation itself, different soils were considered. The analysis was based on the force approach, using as redundants the shear forces, not only at the contraflexural points of the connecting beams, but also at wall junctions. The elasto-plastic condition was restricted to the connecting beams by using a convenient bilinear model for the force formulation. The objective was to provide a theoretical treatment of the foundation-structure interaction that is suitable for implementation in the discrete force method. In addition, the results obtained in the discrete force modelling of the soil interaction are presented, and the applicability of the model to some representative problems is discussed.

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Section: Elasto-plastic Analysismentioning

confidence: 99%

Soil-Structure Interaction in Tall Buildings by a Discrete Force Method.

Nadjai

Johnson²

1999

Proceedings of the Institution of Civil Engineers - Structures

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“…In terms of the numerical modeling of CBs, a number of studies over the previous decades have been conducted with CB's modeled as an equivalent continuous shear medium (e.g. Glück [24], Paulay [25], Pekau and Gocevski [26]) and strut-and-tie model [27]. Other researchers used linear elasto-plastic analysis based on the wide column frame analogy (e.g.…”

Section: Introductionmentioning

confidence: 99%

On the Behavior of Coupled Shear Walls: Numerical Assessment of Reinforced Concrete Coupling Beam Parameters

Nofal¹,

ElSayed²,

Akl³

et al. 2021

J. Civ. Eng. Constr.

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Modern construction of high-rise and tall buildings depends on coupled shear walls system to resist the lateral loads induced by wind and earthquake hazards. The lateral behavior of this system depends on the structural behavior of its components including coupling beams and shear walls. Although many research studies in the literature investigated coupling beams and shear walls, these studies stopped short of investigating the coupled shear walls as a system. Therefore, in this research, the effect of the coupling beam parameters on the nonlinear behavior of the coupled shear walls system was investigated. The full behavior of a 10-story coupled shear wall system was modeled using a series of finite element analyses. The analysis comprised of testing several coupling beam parameters to capture the effect of each parameter on system response including load-deflection behavior, coupling ratio, crack pattern, and failure mechanism. The results indicated that a span-to-depth ratio equal to two is a turning point for the coupling beam behavior. Specifically, the behavior is dominated by ordinary flexure for a ratio of more than two and deep beam behavior for a ratio of less than two. This study showed that the coupling beam width does not have a significant effect on the coupled shear wall response. Additionally, it was concluded that the excessive coupling beam diagonal reinforcement could significantly affect the coupled shear walls behavior and therefore an upper limit for the diagonal reinforcement was provided. Moreover, limitations on the longitudinal and diagonal reinforcement and stirrups are presented herein. The analysis results presented in this paper can provide guidance for practitioners in terms of making decisions about the coupling ratio of the coupled shear walls.

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Analysis of spatial real buildings by discrete force method

Nadjai

Johnson

1996

Struct. Design Tall Build.

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Elasto-plastic analysis of coupled shear walls

Cited by 5 publications

References 2 publications

Soil-Structure Interaction in Tall Buildings by a Discrete Force Method.

Soil-Structure Interaction in Tall Buildings by a Discrete Force Method.

On the Behavior of Coupled Shear Walls: Numerical Assessment of Reinforced Concrete Coupling Beam Parameters

Analysis of spatial real buildings by discrete force method

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