Shear wall

About: Shear wall is a research topic. Over the lifetime, 9592 publications have been published within this topic receiving 82664 citations.

Cyclic test of four-story steel plate shear wall

Abstract: A large-scale, four-story, single bay steel plate shear wall specimen with unstiffened panels was tested using controlled cyclic loading to determine its behavior under an idealized severe earthquake event. The shear wall had moment-resisting beam-to-column connections, resulting in a lateral load-resisting system that possesses an inherent redundancy. Gravity loads were applied at the top of the wall and equal horizontal loads were applied at the four floor levels. The specimen endured 30 cycles of loading during the test, of which 20 cycles were in the inelastic range. Prior to failure of the specimen, the deflection reached in the lowest story was nine times the yield deflection. The test specimen proved to be initially very stiff, showed excellent ductility and energy dissipation characteristics, and exhibited stable behavior at very large deformations and after many cycles of loading. A description of the test setup, loading procedures, and specimen behavior is presented.

Cyclic Analysis of Wood Shear Walls

Abstract: A simple numerical model to predict the load-displacement response and energy dissipation characteristics of wood shear walls under general quasi-static cyclic loading is presented. In this model the shear wall is comprised of three structural components: rigid framing members, linear elastic sheathing panels, and nonlinear sheathing-to-framing connectors. The hysteretic model for the sheathing-to-framing connector takes account of pinching behavior and strength and stiffness degradation under cyclic loading. A robust displacement control solution strategy is utilized to predict the wall response under general cyclic loading protocols. The shear wall model has been incorporated into the computer program CASHEW (Cyclic Analysis of SHEar Walls). The predictive capabilities of this program are compared with monotonic and cyclic tests of full-scale wood shear walls. It is shown that this model can accurately predict the load-displacement response and energy dissipation characteristic of wood shear walls under general cyclic loading. As an application of the CASHEW program, a procedure is presented for calibrating a single degree-of-freedom system to predict the complete nonlinear dynamic response of shear walls under seismic loading.

Displacement-based seismic assessment of reinforced concrete buildings

Abstract: Seismic assessment of existing reinforced concrete frame and shear wall buildings is discussed. Building on an earlier preliminary assessment procedure incorporating aspects of capacity design into...

Continuum model for masonry: parameter estimation and validation

Abstract: A novel yield criterion that includes different strengths along each material axis is presented. The criterion includes two different fracture energies in tension and two different fracture energies in compression. The ability of the model to represent the inelastic behavior of orthotropic materials is shown, and a set of experimental tests to characterize the constitutive behavior of masonry is proposed. The capability of the model to reproduce the strength behavior of different masonry types is demonstrated through a comparison with available experimental data in masonry panels subjected to uniform biaxial loading conditions. Finally, the model is validated against experimental results on masonry shear walls and good agreement is found. A clear understanding of the behavior of masonry shear walls, and the nonlinear phenomena involved in its collapse, is presented with the help of a detailed comparison between numerical and experimental results.