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Structural Engineering and Mechanics Volume 22, Number 3, February20 2006, pages 371-339 DOI: http://dx.doi.org/10.12989/sem.2006.22.3.371 |
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Monte Carlo analysis of earthquake resistant R-C 3D shear wall-frame structures |
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Beyza Taskin and Zeki Hasgur
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| Abstract | ||
| The theoretical background and capabilities of the developed program, SAR-CWF, for stochastic analysis of 3D reinforced-concrete shear wall-frame structures subject to seismic excitations is presented. Incremental stiffness and strength properties of system members are modeled by extended Roufaiel-Meyer hysteretic relation for bending while shear deformations for walls by Origin-Oriented hysteretic model. For the critical height of shear-walls, division to sub-elements is performed. Different yield capacities with respect to positive and negative bending, finite extensions of plastic hinges and P- effects are considered while strength deterioration is controlled by accumulated hysteretic energy. Simulated strong motions are obtained from a Gaussian white-noise filtered through Kanai-Tajimi filter. Dynamic equations of motion for the system are formed according to constitutive and compatibility relations and then inserted into equivalent Ito-Stratonovich stochastic differential equations. A system reduction scheme based on the series expansion of eigen-modes of the undamaged structure is implemented. Time histories of seismic response statistics are obtained by utilizing the computer programs developed for different types of structures. | ||
| Key Words | ||
| non-linear analysis; stochastic; white-noise, shear wall-frame systems; reinforced concrete; Monte-Carlo simulation. | ||
| Address | ||
| Istanbul Technical University, Department of Civil Engineering, Maslak, Istanbul, Turkey | ||