PART 1 DEALS WITH THE DYNAMIC ASPECTS OF THE SUBJECT: MATHEMATICAL ANALYSIS OF SYSTEMS SUBJECTED TO INDEPENDENT VIBRATIONS BY MEANS OF MATHEMATICAL MODELS. THE ANALYTICAL SYSTEMS USED ARE NON-LINEAR SYSTEMS, HYDRODYNAMICS AND NUMERICAL METHODS. PART 2 EXAMINES SEISMIC MOVEMENTS, THE DYNAMIC BEHAVIOUR OF STRUCTURES AND THE BASIC CONCEPTS OF THE SEISMIC DESIGN OF STRUCTURES.

Fundamentals of earthquake engineering

A revised procedure for the design of steel plate shear walls is proposed. In this procedure the thickness of the infill plate is found using equations that are derived from the plastic analysis of the strip model, which is an accepted model for the representation of steel plate shear walls. Comparisons of experimentally obtained ultimate strengths of steel plate shear walls and those predicted by plastic analysis are given and reasonable agreement is observed. Fundamental plastic collapse mechanisms for several, more complex, wall configurations are also given. Additionally, an existing codified procedure for the design of steel plate walls is reviewed and a section of this procedure which could lead to designs with less-than-expected ultimate strength is identified. It is shown that the proposed procedure eliminates this possibility without changing the other valid sections of the current procedure.

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Plastic analysis and design of steel plate shear walls

During the last 3 decades interest has grown globally in the application of ductile steel plate walls (DSPWs) (or steel plate shear walls) for building lateral load resistance. The supporting theory has evolved from both analytical and experimental research conducted in several countries around the world. The advantages of using DSPWs as the lateral force resisting system in buildings include stable hysteretic characteristics, high plastic energy absorption capacity, and enhanced stiffness, strength and ductility. A significant number of experimental and analytical studies have been carried out to establish analysis and design methods for such lateral resisting systems. Despite these efforts there is still a need for a general analysis and design methodology that not only accounts for the interaction of the plates and the framing system but also can be used to better understand the linear and nonlinear behavior of different DSPW configurations. These configurations include DSPWs with thin or thick steel p...

Shear Analysis and Design of Ductile Steel Plate Walls

A series of quasti-static cyclic loading tests on unstiffened steel plate shear panels, with centrally placed circular openings, is described. All the panels tested exhibited adequate ductility and stable S-shaped hysteresis loops, with the energy absorbed per cycle increasing with the maximum amplitude of the shear displacement. The strength and stiffness of the panels decreased approximately linearly with increasing size of opening. Experimental results are compared with a previously developed theoretical model for predicting the hysteretic characteristics of unstiffened plate shear panels, which incorporates the influences of shear buckling and plastic yielding of the plate, and an assumed linear reduction in stiffness and strength to allow for openings.

Hysteretic characteristics of unstiffened perforated steel plate shear panels

Page 1 ACKNOWLEDGMENTS / Page 3 TABLE OF CONTENTS / Page 4 NOTATIONS AND GLOSSARY / Page 5

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Seismic Behavior and Design of Steel Shear Walls

A series of quasi-static cyclic loading tests on unstiffened plate shear panels is described. All the panels tested exhibited adequate ductility and stable S-shaped hysteresis loops, with the energy absorbed per cycle increasing with the maximum amplitude of shear displacement. A theoretical model for predicting the hysteretic characteristics is presented, which incorporates the influences of shear buckling of the web plate and plastic yielding of the web plate and surrounding frame. Theoretical predictions are compared and show satisfactory agreement with the experimental results. The simplicity of the theoretical model is such that it can be readily incorporated in nonlinear dynamic analyses of steel plate shear walls.

T.M. Roberts

Papers

Hysteretic characteristics of unstiffened perforated steel plate shear panels

Hysteretic characteristics of unstiffened plate shear panels

Nonlinear dynamic analysis of steel plate shear walls including shear and bending deformations

Nonlinear dynamic analysis of thin steel plate shear walls

Nonlinear finite difference analysis of composite beams with partial interaction