某商场抽柱加固技术对比分析研究

Comparative Analysis and Research on Reinforcement Technology of Removing Column in a Shopping Mall

某商场因需扩大使用空间,需要对其进行抽柱扩跨。通过YJK软件进行模拟新增吊梁法与桁架转换法,对抽柱前后、加固后的内力变化与位移变化等加固效果进行分析对比。经两种方法加固后,梁端弯矩大幅度减少,有效地提高了结构的承载力。梁挠度,抽柱点位移都得到了很好的控制,加固后对结构的整体性没有影响。另外,通过比对两种加固方法的加固效果,对原结构的损伤,得出各自方法的优缺点、适用情况,为以后的实际工程提供参考。

In order to expand the use space of a shopping mall,it is necessary to draw columns and expand spans.In this paper,YJK software is used to simulate the new hanging beam method and truss conversion method,and the reinforcement effects such as internal force change and displacement change before and after column extraction and reinforcement are analyzed and compared.After the two methods of reinforcement,the bending moment at the beam end is greatly reduced and the bearing capacity of the structure is effectively improved.The beam deflection and the displacement of the column pulling point have been well controlled,and the reinforcement has no effect on the integrity of the structure.In addition,by comparing the reinforcement effects of the two reinforcement methods and the damage to the original structure,the advantages,disadvantages and application of each method are obtained,which can provide reference for future practical projects.