|
| A hybrid probabilistic and convex model for caculating the vulnerability curve of the failure of isolation bearing under near-fault earthquake ground motion |
| Received:September 18, 2012 Revised:December 05, 2012 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201402010 |
| KeyWord:base-isolated structure near-fault earthquake ground motion vulnerability curve bearing failure convex model |
| Author | Institution |
| 樊剑 |
华中科技大学 土木工程与力学学院, 武汉 ;华中科技大学 控制结构湖北省重点实验室, 武汉 |
| 龙晓鸿 |
华中科技大学 土木工程与力学学院, 武汉 |
| 赵军 |
华中科技大学 土木工程与力学学院, 武汉 |
|
| Hits: 1963 |
| Download times: 1323 |
| Abstract: |
| Uncertain parameters of base-isolated structure are described as convex model and uncertain earthquake ground motions are described as probabilistic model,a new method for calculating vulnerability curve of the failure of isolation bearing under near-fault earthquake ground motions is presented.The results of the calculation provide reference for the choice of the isolator's mechanical parameters;From calculation and comparison it can been seen that if the uncertainty of structural parameters aren't considered,the earthquake vulnerability of the failure of isolation bearing would been underestimated;According to the sensitivity analysis of the maximum base displacement,the mechanical parameters of the isolation bearing have great influence on the maximum base displacement followed by the mass of super-structure and the influence of the stiffness of superstructure is small.In addition,the study contents in the dissertation provide a new idea and approach to calculate the earthquake vulnerability curve of various structures,considering the uncertainty of structural parameters and earthquake ground motions simultaneously. |