Analytical Investigation into the Rotational Performance of Glulam Bolted Beam-Column Connections under Coupled Bending Moment and Shear Force  

作　　者：Xiaofeng Zhang Lisheng Luo Youfu Sun Xinyue Cui Yongqiang Zhang 

机构地区：[1]Department of Wooden Structure Construction,College of Materials Science and Engineering,Nanjing Forestry University,Nanjing,China [2]Department of Civil Engineering,College of Civil Engineering and Architecture,Hainan University,Haikou,China

出　　处：《Journal of Renewable Materials》2023年第4期2033-2054,共22页可再生材料杂志（英文）

基　　金：funded by the National First-class Disciplines(PNFD);High Level Natural Science Foundation of Hainan Province of China(Grant No.2019RC055);Project Supported by the Education Department of Hainan Province(Project No.hnjg2021-13).

摘　　要：Considering the glulam beam-column connection form and the number of bolts,monotonic loading test and finite element analysis was carried out on 9 connection specimens in 3 groups to study the rotational performance and failure mode of the connection.The test results revealed that compared with U-shaped connectors,T-shaped connectors can effectively improve the ductility of connections,and the increase in the number of bolts can reduce the initial stiffness and ductility of connections.By theoretical analysis,formulas for calculating the initial stiffness and ultimate moment of connections were deduced.Subsequently,the moment-rotation theoretical model of connections was established based on the formulas,which were validated according to the test data and simulation results.The proposed model can not only improve the current theoretical system of heavy-duty glulam beam-column structure but also provide a theoretical basis for calculating the mechanical properties of the glulam beam-column connection.

关 键 词：Beam-column connection mechanical properties STIFFNESS ultimate moment 

分 类 号：TB33[一般工业技术—材料科学与工程]