- 摘 要
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邓勇军1, 姚 勇1, 褚云朋1, 魏 霞2
(1 西南科技大学土木与建筑工程学院,绵阳 621010;2 绵阳市文辰建筑工程有限责任公司,绵阳621010)[摘要] 采用有限元软件建立模型,对加设软钢阻尼器与未加阻尼器的RC高层框架结构两种模型进行了动力时程分析,总结了软钢阻尼器对RC高层框架结构的减震效果及特点。结果表明:1)软钢阻尼器对结构的整体刚度有一定的提高,在地震作用下,对结构的加速度反应及位移反应影响较大,减震效果明显。2)软钢阻尼器能增大结构的延性,较大程度地减少结构在罕遇地震作用下塑性铰的数量。3)通过动力数值模拟分析表明,RC高层框架结构体系适于加设软钢阻尼器进行减震,尤其对整体抗震性能需要提高的结构减震效果明显。
[关键词] 软钢阻尼器;RC高层框架;减震;动力分析;数值模拟
中图分类号:TU375 文献标识码:A 文章编号:1002-848X(2011) Sl-0166-04Numerical analysis on dampmg performance of RC high-level framework strengthened with HADAS
Deng Yongjun1, Yao Yong1, Chu Yunpeng1, Wei Xia2
(1 School of Civil Engineering and Architecture, Southwest Uruversity of Science and Technology, Mianyang 621010, China; 2 Wenchen Architectural Engineering Limited Liability Company of Mianyang, Mianyang 621010, China)Abstract: Finite element software was adopted to generate two analysis models of RC structure which one is the origin structure and another is added HADAS, and analyzed the shock absorption effect and characteristics of HADAS based on the dynamical and time-history analysis. The result shows that:1)HADAS willimprove the integral stiffness of structure; under the earthquake effect, it has great effect on the acceleration response and displacement response, shock absorption obvious.2)HADAS has great effect on increase the ductility of structure, can reduce the number of plastic hinge of the structure under the action of the rarely met earthquake.3)Through dynamic numerical simulation, showed that the RC structure adding HADAS is very applicable, especially for the system structure wluch needed improve earthquake resistant behavior integral, the shock absorption effect is obvious.
Keywords: HADAS; RC high-level framework; shock absorption; dynamic performance; numerical simulation