铁道科学与工程学报2012，Vol.9Issue(5)：19-24,6.
罕遇地震作用下HADAS加固某大跨度结构的静力弹塑性分析
Study on earthquake resistant performance of a large span structure strengthened with HADAS
摘要
Abstract
Seismic fortification intensity has been adjusted in some areas which were affected in the Wenchuan -earthquake. It was seismic strengthening for most of the buildings especially the public buildings after the adjustment. In order to ensure the seismic performance of the structure after reinforcement ,the analysis method based on performance was gradually applied in the large and complex engineering structure analysis. A large span sports training center was used taking construction as background. According to the fact that the fortification intensity was improved from 6 degrees to 7 degrees, Push - Over method was used to analyze the structures elastic - plastic performance under the action of the rare earthquake of 7 degrees by using the finite element models with the mild steel damper before and after reinforcement. The internal force , deformation and destruction of the structure were studied in the action of the rare earthquake, comparing the dynamic characteristics and seismic performance of the models, and researching distribution of weak links and plastic hinge of the models under the large earthquake. The results show that the models can meet collapse resistant checks under 7 degrees of the rare earthquake before and after reinforcement. The second floor of the original structure is relatively weak, and it can emerge local damage easily. But the structure' s stiffness is more uniform after reinforcement, and the structure has large resistance of the collapsed ability.关键词
大跨结构/软钢阻尼器/烈度/抗震加固/Push-OverKey words
big span structure/ HADAS/ seismic intensity/ seismic strengthening/ Push -Over分类
建筑与水利引用本文复制引用
陈代果,姚勇,邓勇军,杨亚龙,王海军..罕遇地震作用下HADAS加固某大跨度结构的静力弹塑性分析[J].铁道科学与工程学报,2012,9(5):19-24,6.基金项目
国家"863"计划项目(2009AA032304) （2009AA032304）
