侧向静载下装配式复合墙模型试验研究  

Model Test of Assembled Composite Walls under Lateral Static Load

作　　者：张勣翔 许宏发[2] 陈明雄[2] 

机构地区：[1]上海市民防监督管理处,上海200020 [2]解放军理工大学工程兵工程学院,南京210007

出　　处：《地下空间与工程学报》2011年第4期695-699,769,共6页Chinese Journal of Underground Space and Engineering

基　　金：国家973计划资助(2009CB724608)

摘　　要：装配式复合地下连续墙的接头形式主要有焊接钢板连接和钢筋混凝土扶壁柱连接两种,其侧向抗力是地下结构研究的重点。本文通过复合墙侧向静载模型试验,进行了两种接头形式复合墙体的承载能力和整体性能的研究。试验结果表明两种接头形式的复合墙均能承受较大的静力荷载,钢板接头和扶壁柱接头复合墙侧向最大等效均布面荷载均值分别为631 kPa和453 kPa,钢板接头复合墙延性大抗力性能好。根据模型破坏形式,提出了钢板接头复合墙侧向承载力计算公式,对装配式复合地下连续墙的设计和施工实践具有指导意义。There are mainly two sorts of joint for the assembled composite underground diaphragm walls,namely,the welded steel plate and the counterfort column with reinforced concrete.Their lateral resistance is the key point in investigation on underground structure.By means of model tests on the assembled compound walls under lateral static load,the lateral bearing capacity and the ensemble performance on the compound walls with two sorts of joint（two test pieces for the steel plate joint and two test pieces for the counterfort column joint） had been carried out.The experiment results show that： the models of the compound walls with two sorts of joint can support the greater static lateral load;the mean values of the maximum equivalent uniformly distributed load on the surface is 631 kPa and 453 kPa,respectively;the ductility and resistance performance for the mode with the steel plate joint were better than the other.According to the failure forms of the model with the steel plate joint,the design formulas of lateral supporting capacity on the model with the steel plate joints had been suggested.These results are of guiding significance for the design and the construction practice of assembled compound underground diaphragm walls.

关 键 词：装配式复合墙 地下连续墙 模型试验 

分 类 号：TU476.3[建筑科学—结构工程]