Mechanical Performance Research of Full-bolted Connection Plate Joints for Steel Truss
About the author:
1. China Aviation Planning and Design Institute (Group) Co., Ltd., Beijing 100120,China;2. Beijing Urban Construction Group Co., Ltd., Beijing 100088, China
Abstract:
The inclined web components of the large-span steel trusses in the roof of a large overseasterminal building adopt on-site connection plate joints with fully high-strength bolts. Through comparativeexperimental studies, the original design of the joints was verified to be safe and reliable in terms ofmechanical performance. Within the scope permitted by the code, the bolt group distribution of theoriginal design was optimized, and the test results showed that the bearing capacity of the optimizedconnection plate joints increased by 24.4%. Based on the experimental research, numerical analysis wasconducted on connection plate joints with different plate thicknesses and bolt group distributions. Theresults indicated that increasing the thickness of the insert plate could enhance the stability and bearingcapacity of the connection zone. By analyzing the stress transfer mechanism of the connection plates, amodified calculation method for connection plate stress applicable to this type of joint was proposed.
