预应力度对扁梁框架内节点抗震性能影响研究  

Effect of PPR on aseismatic behaviour of inner joints of prestressed concrete flat-beam frame

作　　者：乔虹[1] 程浩德[2] 

机构地区：[1]福建工程学院土木工程系,福建福州350108 [2]福州大学土木工程学院,福建福州350108

出　　处：《福建工程学院学报》2011年第6期546-549,共4页Journal of Fujian University of Technology

基　　金：福建省科技厅自然科学基金(2010J05114);福州大学人才启动基金(XRC-0964)

摘　　要：通过3个不同预应力度的预应力混凝土扁梁框架内节点试件的低周反复荷载加载试验,初步研究了节点的破坏形态、滞回曲线、延性、耗能能力等抗震性能。结果表明,对框架节点影响的本质原因是通过施加预应力在框架结构上,预应力度增大,框架节点的水平承载力随之增大。Pseudo-static tests on three inner joints of pretressed concrete flat-beam frame were conducted to research the aseismatic behaviour, such as failure pattern, hysteresis curves, ductility and energy dissipation. And the effect of partical prestress rate （PPR） on the aseismatie properties of the inner joints of pretressed concrete flat-beam frame was determined. The results of the test show that the bearing capacity of the joints improves with the increase of PPR.

关 键 词：预应力混凝土 扁梁框架内节点 抗震性能 预应力度 

分 类 号：TU375.4[建筑科学—结构工程]