劲性填芯管桩节点抗震性能试验研究  

Experimental research on seismic performance of steel composite filling core pipe pile joints

作　　者：张伟[1] 贺武斌[1] 郭昭胜[1] 白晓红[1] 

机构地区：[1]太原理工大学建筑与土木工程学院,太原030024

出　　处：《建筑结构》2014年第17期75-78,共4页Building Structure

基　　金：山西省留学人员科技活动择优项目(80010402020028)

摘　　要：为了提高桩与承台连接节点的承载力,对管桩进行劲性填芯,并对劲性填芯管桩及普通填芯管桩进行室内节点抗震性能试验,对比分析了两种管桩在水平往复荷载作用下的荷载-位移曲线、荷载-应变曲线、裂缝发展情况及抗弯能力。结果表明,劲性填芯能够使锚固钢筋和管桩更好地发挥其性能,且能大幅度提高桩与承台连接节点的水平承载力、位移及延性。To improve the bearing capacity of the connection joint between pile and pile cap, the pipe pile was filled with steel. The indoor seismic performance experiments were carried out on the steel composite filling core pipe pile and common material composite filling core pipe pile respectively. Comparison analyses were carried out on the load-displacement curve, the load-strain curve, crack development situation and the resistance to bending of two kinds of piles under the horizontal reciprocating load. The results show that steel composite filling core can not only make performances of the anchorage rebar and pipe pile play well, but also improve the horizontal bearing capacity, ductility and displacement of the connection joint between pile and pile cap greatly.

关 键 词：劲性填芯管桩 桩基 水平往复荷载 节点 承载力 

分 类 号：TU473.12[建筑科学—结构工程]