摘要
本文通过6个试件,对钢桁架与混凝土核心筒之间采用单剪板连接时节点预埋件的不同构造方案进行了低周反复加载试验研究。所研究的4种预埋件构造形式分别为栓钉锚固、钢筋栓钉锚固、夹板钢筋锚固和钢板型钢锚固,产生了两类不同的破坏形态。栓钉锚固预埋件的破坏主要由混凝土破坏所致,包括在反复荷载下栓钉的粘结滑移和混凝土的局部破坏脱落,影响了承载力,后期变形大。后3种预埋件构造形式破坏的共同点是上下端的锚固钢筋或钢板对破坏起控制作用。其中钢板型钢锚固预埋件可以通过加强锚固钢板达到很高的承载力,具有良好的综合抗震性能;钢筋栓钉锚固预埋件和夹板钢筋锚固预埋件的承载力和刚度,主要取决于锚固钢筋,在4种构造形式中抗震性能居中。
Cyclic loading tests of 6 specimens were carried out to investigate the performance of different details of embedded anchors for the single-plate connection between steel trusses and concrete walls. Four types of anchorages of interest were stud anchors, stud-steel bar anchors, sandwich-like steel bar anchors and steel panel anchors, respectively, and they resulted in two modes of failure. Failure of the specimen with stud anchors was mainly caused by the failure of concrete and bond slippage of studs under cyclic loading, which affected its capacity and led to large deformation. For the other three types of specimens, their behavior and failure mainly depended on the upper and lower embedded steel bars or steel panels. The steel panel anchor could reach a high capacity and have adequate overall seismic behavior by increasing the steel panel. The stud-steel bar anchor and the sandwich-like steel bar anchor showed their behavior between the above mentioned.
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
2006年第2期33-39,共7页
Journal of Building Structures
基金
北京市科委科技项目(953300801)
北京市规委科研项目(199802001)
北京市教委科技发展重点项目(KZ200410005003)
关键词
钢桁架与混凝土墙连接节点
单剪板连接
预埋件构造
steel truss-concrete wall ioint
single-plate connection
embedded anchor detailing
