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-δ 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 Itô-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.
| Original language | English |
|---|---|
| Pages (from-to) | 371-399 |
| Number of pages | 29 |
| Journal | Structural Engineering and Mechanics |
| Volume | 22 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 20 Feb 2006 |
Keywords
- Monte-carlo simulation
- Non-linear analysis
- Reinforced concrete
- Stochastic
- White-noise, shear wall-frame systems
