改进叠合板式剪力墙受力性能分析

Mechanical performance analysis of the structural improved superimposed shear walls

叠合剪力墙结构是一种新型的装配式结构,适应建筑工业化生产的要求,在建筑领域运用越来越广泛。现场常用的叠合剪力墙有两种形式,一种是边缘构件现浇的叠合墙体,一种是边缘构件预制的叠合墙体。边缘构件预制的叠合剪力墙施工更加方便,工厂化生产更具有优势,因此更加值得推广。针对边缘构件预制的叠合墙体,本文提出了一种改进形式。基于Open SEES采用对改进后的叠合板式剪力墙的受力性能进行模拟。模拟结果表明,改进的叠合剪力墙不仅能够提高叠合剪力墙的极限承载力,还能够增强墙叠合剪力墙界面抗剪能力。

The superimposed shear wall is a new assembly- type RC structure,it has been found more and more applications in building construction because of its adaptation to building industrialization.There are two common forms of superimposed shear wall： the superimposed shear wall with prefabricated boundary element and with cast- in- situ boundary element. The superimposed shear wall with prefabricated boundary element is more convenient to the construction than superimposed shear wall with cast- in- situ boundary element. The superimposed shear wall with prefabricated boundary element is of much more practical value in actual production. The structural improvement of superimposed shear wall is proposed. A simulation with OPENSEES finite element software was given to analyze the behavior of improved superimposed shear wall. The analysis shows that the improved superimposed shear wall not only has higher ultimate bearing capacity than unimproved superimposed shear wall,but also increases shear capacity of the interface of new- to- old concrete.