有粘结预应力混凝土和无粘结预应力混凝土扁梁框架拟动力试验研究和有限元分析

Pseudo-dynamic experiment study and finite element analysis on bonded prestressed concrete flat beam frame and unbonded prestressed concrete flat beam frame

通过对一榀有粘结预应力混凝土扁梁框架和一榀无粘结预应力混凝土扁梁框架所进行的拟动力抗震性能试验,分析比较了它们的破坏形态、动力反应、滞回曲线、刚度退化等抗震性能.试验结果表明,无粘结预应力混凝土扁梁框架可以满足抗震要求.此外,还应用有限元分析程序,对预应力扁梁框架进行弹塑性地震反应时程分析,结果证明是可行有效的.

The pseudo -dynamic tests of one bonded prestressed concrete flat beam frame and one unbonded prestressed concrete flat beam frame have been carried out to research on the failure pattern, dynamic response, hysteresis curves, rigidity degeneration. Based on the results of the tests, we can draw the conclusion that unbonded prestressed concrete fiat beam frame can meet the aseismic require. Using finite element analysis program, time history analysis of elastic - plastic earthquake response for structure is adopted in this paper. It is feasible and effective.