装配式抗侧力钢格构柱抗震性能分析

ANALYSIS OF SEISMIC PERFORMANCE OF PREFABRICATED LATERAL FORCE STEEL LATTICE COLUMNS

近年来,预制件建筑在中国发展迅速,“十四五”规划中提出推进新型城市建设,装配式建筑和钢结构住宅得到大范围推广与应用。装配式抗侧力钢格构柱(GZA)可以通过钢筋缀件发生塑性变形来达到抗震耗能的目的,其特点为重量轻、抗震性能好、可实现干法施工等。施工现场仅需螺栓连接,可以更好地满足装配化施工要求。提出了一种新的GZA结构,通过拟静力试验研究了新建GZA结构的抗震性能。研究结果表明:相较于钢筋缀件格构柱,GZA抗侧力性能较优越,且抗震性能良好。

In recent years,prefabricated buildings have developed rapidly in my country.The"14th Five-Year Plan"proposed to promote the construction of new cities,and prefabricated buildings and steel structure residences have been widely promoted and applied.Assembled lateral force-resisting steel lattice columns(GZA)can achieve the purpose of anti-seismic energy dissipation through the plastic deformation of the steel bars.It is characterized by light weight,good seismic performance,and dry construction.The construction site only needs to be connected by bolts,which can better meet the requirements of assembly construction.In this paper,a new type of GZA structure is proposed,and the seismic performance of the new type of GZA structure is studied by quasi-static test.The research results show that:GZA has superior lateral force resistance and good seismic performance compared with reinforced lattice columns.