拼接板厚度对框架中钢梁高强螺栓拼接性能的影响  

Influence of thickness of splice plates fixed with high-strength bolts in framed steel beam on its splicing performance

作　　者：李启才[1] 顾强[1] 刘刚[1] 

机构地区：[1]苏州科技学院,江苏省结构工程重点实验室,江苏苏州215011

出　　处：《兰州理工大学学报》2008年第6期131-134,共4页Journal of Lanzhou University of Technology

基　　金：国家自然科学基金(59978041)

摘　　要：拼接板厚度是高强螺栓摩擦型连接中的一个重要参数.采用有限元分析方法,同时考虑材料、几何和接触状态3个非线性,对框架结构中钢梁高强螺栓拼接采用不同拼接板厚度时的性能,进行单调和循环荷载作用下的模拟研究.结果表明:采用较薄的拼接板时,试件的拼接区滑移出现得早,拼接板的塑性屈曲变形也变大;在设计中加大拼接板的厚度则不会对拼接区的性能造成明显影响.The thickness of splice plates is an important factor in frictional connection with high-strength bolts. Using finite element method and taking into consideration the three nonlinearities of materials, geometry and contact conditions, the modeling of high-strength bolted beam splices in framed structure was performed under both mono- and cyclic-loading onto the splice plates with different thickness. The result showed that slipping of laying surfaces occurred earlier when using thinner splice plates, and the plastic buckling deformation was also greater. The behavior of splice joint would not be remarkably influenced by thickening the splice plates.

关 键 词：拼接板厚度 钢梁拼接 高强螺栓摩擦型连接 框架结构 

分 类 号：TU391[建筑科学—结构工程] TU317.2