华中科技大学学报（自然科学版）2025，Vol.53Issue(2)：69-77,9.DOI:10.13245/j.hust.250048
轻钢组合预制混凝土屋盖结构受力性能试验研究
Experimental study on mechanical performance of light steel composite precast concrete roof structure
摘要
Abstract
In order to address the issue of connecting beams and columns in light steel composite structures,a prefabricated concrete roof structure system with studs connections was proposed.A full-scale prefabricated recycled concrete roof consisting of 3 prefabricated concrete one-way slabs was designed,which were connected using the assembled self-tapping nail set connection nodes.Through out-of-plane stress performance testing,the damage process and failure state of the roof system were studied,and an analysis was conducted on its deformation capacity,load carrying capacity,stiffness,and strain characteristics.ABAQUS finite element calculation software was utilized to analyze different working conditions.The results demonstrate that the prefabricated concrete roof exhibits excellent external force performance and effectively connects with the light steel composite frame through studs.The assembled self-tapping nail sets ensure reliable connection between the plates while enabling bidirectional loading on the roof.Furthermore,ABAQUS calculations indicate that increasing the number of self-tapping nail sets,reinforcing ratio of the roof,number of studs and increase the thickness of the floor slab can enhance its bearing capacity and stiffness to some extent.关键词
装配式建筑/预制混凝土屋盖/栓钉连接/平面外受力性能/试验研究Key words
prefabricated building/prefabricated concrete roof/stud connection/out-of-plane stress performance/experimental research分类
土木建筑引用本文复制引用
董宏英,巩涛,曹万林,杨兆源..轻钢组合预制混凝土屋盖结构受力性能试验研究[J].华中科技大学学报（自然科学版）,2025,53(2):69-77,9.基金项目
国家自然科学基金资助项目(52378116) （52378116）
住房和城乡建设部研究开发项目(K20200094). （K20200094）
