湖南大学学报（自然科学版）2026，Vol.53Issue(1)：31-41,11.DOI:10.16339/j.cnki.hdxbzkb.2026004
模块化钢结构剪力键双层灌浆连接的轴向力学性能
Axial mechanical properties of shear key double-layer grouting connection in modular steel structure
摘要
Abstract
Modular steel structures as an efficient,environmentally friendly,and sustainable construction method,and the connection between the units will directly affect the overall stability and seismic performance of the structure.However,the common connection methods in modular steel structures,such as welding,bolted connections,and prestressed connections,exhibit several challenges including low construction efficiency,susceptibility to installation errors,and limited working space.In this paper,a novel shear key double-layer grouting connection is proposed,which has good applicability to corner column joints,side column joints and middle column joints of modular steel structures.In order to evaluate the axial mechanical properties of the novel connection,8 connection specimens were produced for push-out tests,and the effects of shear key spacing,grout strength,connection length and number of grout layers on the failure forms,tensile capacity and strain distribution of the specimens were investigated.Based on the theoretical analysis,the formula for calculating the tensile capacity of the shear key double-layer grouting connection is derived.The effectiveness and accuracy of the formula are verified by comparing with the test results,which can provide a theoretical basis for the engineering application of the novel connection in the modular steel structure.关键词
模块化建筑/钢结构/剪力键/双层灌浆连接/推出试验/受拉承载力提升Key words
modular construction/steel structures/shear key/double-layer grouting connections/push-out tests/tensile capacity improvement分类
建筑与水利引用本文复制引用
白久林,杨季,梁天龙,刘宜丰,金双双,邓世斌..模块化钢结构剪力键双层灌浆连接的轴向力学性能[J].湖南大学学报（自然科学版）,2026,53(1):31-41,11.基金项目
国家自然科学基金资助项目(52378481),National Natural Science Foundation of China(52378481) （52378481）
重庆市自然科学基金创新发展联合基金资助项目(CSTB2022NSCQ-LZX0047),Chongqing Natural Science Foundation Innovation and Development Joint Fund(CSTB2022NSCQ-LZX0047) （CSTB2022NSCQ-LZX0047）
