胶合木外夹钢板群螺栓连接力学性能的试验研究  

Experimental study on mechanics performance of multi-bolt steel-glulam-steel joints

作　　者：徐德良[1] 刘伟庆[1] 刘子彤[1] 周叮[1] 

机构地区：[1]南京工业大学土木工程学院,江苏南京210009

出　　处：《南京工业大学学报（自然科学版）》2011年第5期29-35,共7页Journal of Nanjing Tech University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50578075);国家科技支撑计划资助项目(2006BAJ04A02-10)

摘　　要：采用8组40个连接试件,考察胶合木外夹钢板群螺栓连接构件在顺纹受拉时的力学性能,探讨其破坏模式和受力机制。研究表明:胶合木外夹钢板群螺栓连接的破坏模式、承载力、刚度和延性与螺栓列数、每列的螺栓数、螺栓的布置方式有关;承载力不具有由螺栓数线性叠加的性质;螺栓总数不变、多列布置螺栓延性较佳。The mechanics performance of multi-bolt steel-glulam-steel joints subjected to a load parallel to grain was investigated with 8 groups of 40 multi-boh joints specimens. The failure mode and its mechanism were discussed. For multi-bolt steel-glulam-steel joints, results showed that the failure modes, bearing capacity, stiffness, and ductility were relevant to the rows of bolts, the number of bolts in a row and the way of bolts arranged. The bearing capacity of multi-bolt joints was nonlinear number of bolts. With the same number of bolts, the ductility of bolts arranged in multi-rows was better than that of one-row.

关 键 词：胶合木外夹钢板 群螺栓连接 破坏模式 承载能力 

分 类 号：TU366.2[建筑科学—结构工程] TU317.1