预应力混凝土扁梁框架地震响应试验与理论分析对比
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摘要
为了研究预应力混凝土扁梁框架的动力特性和地震响应,本文在一榀无粘结和一榀有粘结预应力混凝土扁梁框架拟动力试验数据的基础上,运用有限元软件进行非线性时程分析,在一定程度上对比试验数据。分析结果表明:框架结构由于损伤累积引起结构整体刚度和阻尼比的变化,导致结构自振周期发生变化,进而影响结构在地震中的各种响应。利用有限元软件进行结构地震作用下各种响应的分析,是可行有效的。
In order to study the dynamic behaviors and seismic response of prestressed concrete flat beam frame,On the basis of the pseudo-dynamic test on unbonded and bonded prestressed concrete flat-beam frame,By using FEA analysis program,time history analysis of elastic-plastic seismic response for structure was carried out in this paper,and the result was compared in some extent..The results show that the damage-accumulation under the seismic load will lead to the change of the stiffness and damping ratio of the frame structure,then proceed to the next step to influence the different response of the structure under seismic.Using FEA analysis program structure subjected to earthquake response analysis,is feasible and effective.
In order to study the dynamic behaviors and seismic response of prestressed concrete flat beam frame,On the basis of the pseudo-dynamic test on unbonded and bonded prestressed concrete flat-beam frame,By using FEA analysis program,time history analysis of elastic-plastic seismic response for structure was carried out in this paper,and the result was compared in some extent..The results show that the damage-accumulation under the seismic load will lead to the change of the stiffness and damping ratio of the frame structure,then proceed to the next step to influence the different response of the structure under seismic.Using FEA analysis program structure subjected to earthquake response analysis,is feasible and effective.
引文
[1]房贞政.预应力结构理论与应用[M].北京:中国建筑工业出版社,2005:198-200.
[2]李飞燕.无粘结与有粘结预应力混凝土扁梁框架地震响应对比研究[D].福州:福州大学土木工程学院,2006.
[3]GB50011-2002,建筑抗震设计规范[S].
[4]GB50010-2002,混凝土结构设计规范[S].
[5]邱法维,钱稼茹,陈志鹏.结构抗震实验方法[M].科学出版社,2000.
[2]李飞燕.无粘结与有粘结预应力混凝土扁梁框架地震响应对比研究[D].福州:福州大学土木工程学院,2006.
[3]GB50011-2002,建筑抗震设计规范[S].
[4]GB50010-2002,混凝土结构设计规范[S].
[5]邱法维,钱稼茹,陈志鹏.结构抗震实验方法[M].科学出版社,2000.
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