巨型框架-次框桁架结构体系隔震减震性能研究

陈淮; 盛朝晖

doi:10.13204/j.gyjz200902011

巨型框架-次框桁架结构体系隔震减震性能研究

doi: 10.13204/j.gyjz200902011

陈淮¹,
盛朝晖²

1.
1. 郑州大学土木工程学院,郑州 450001;
2.
2. 河北工程大学水电学院,河北邯郸 056021

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- 文章访问数: 97
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- 被引次数: 0
出版历程
- 收稿日期: 2008-04-14
- 刊出日期: 2009-02-20

SEISMIC ISOLATION ANALYSIS OF MEGA-FRAME-SUB-TRUSS-FRAME SYSTEM

Chen Huai¹,
Sheng Zhaohui²

1.
1. School of Civil Engineering,Zhengzhou University,Zhengzhou 450001,China;
2.
2. Hydroelectric College,Hebei Engineering University,Handan 056021,China

摘要

摘要: 通过在巨型框架-次框桁架结构中增加隔震装置,得到巨型框架-次框桁架结构隔震减震体系。采用ANSYS有限元程序对该隔震减震体系进行了隔震减震动力时程计算,得到该结构体系在多条地震波作用下的地震响应。计算结果表明,巨型框架-次框桁架结构隔震减震体系是一种抗震性能良好的结构体系,可改善巨型结构的受力,具有优良的抗震性能:主、次框架顶点位移相对于巨型框架-次框桁架结构的顶点位移明显减小,主框架位移最大减少约47%,次框架最大减少约64%;主框架地震内力最大值响应低于巨型框架-次框桁架结构,剪力减少约33%,弯矩减少约34%。计算结果对巨型结构的抗震设计有较大的参考价值。
- 高层建筑 /
- 有限元方法 /
- 隔震 /
- 减震 /
- 巨型框架-次框桁架结构
Abstract: A new-style structural seismic isolation system is put forward by adding the isolation device in to a mega-frame-sub- truss-frame system. The system's seismic response under several earthquake waves, such as the dynamic time history response, isobtained by using a general finite element program ANSYS to calculate the seismic isolation and resistance performance. The calculation results show that the mega-frame-sub-truss-frame system is a well-behaved structural seismic system. It has good seismic resistance performance and improves the mega-frame's load -carrying properties: The culmination displacements are reduced observably relative to the original structural system without the isolation device. The specific data are that the culmination displacemen t are reduced approximately by 47% in main-frame and by 64% in sub-frame. The maximum seismic internal force response value i s also inferior to the original structural system. The shear force is reduced approximately by 33% and the bending moment is reduced by 34%. The calculation results have an important referential value to the seismic design of mega-frame structural system.
- high-rise building /
- finite element method /
- seismic isolation /
- shock absorption /
- mega-frame-sub-truss-frame structure

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参考文献(10)

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