上海某办公楼深基坑工程预应力地下连续墙优化设计研究

Optimal design and research on prestressed diaphragm wall for a deep foundation pit of an office building in Shanghai

本文以上海某办公楼深基坑工程为例,介绍了该工程普通混凝土地下连续墙结构设计及预应力混凝土地下连续墙结构优化设计,并对两种设计方案地下连续墙结构的内力、配筋和裂缝宽度进行了对比分析,计算分析结果表明:与普通混凝土地下连续墙结构相比,预应力地下连续墙结构具有优越的受力性能和经济性。

Taking the deep foundation pit project of an office building in Shanghai as an example,this paper introduces the design of ordinary concrete diaphragm wall structure and the optimization design of prestressed concrete diaphragm wall structure.The internal force,reinforcement and crack width of the underground diaphragm wall of two kinds of design schemes are compared in this paper.Moreover,the results of calculation and analysis show that the prestressed underground diaphragm wall structure has superior mechanical performance and economy compared with the ordinary concrete underground diaphragm wall structure.