State-of-the-art on resistance of bearing-type bolted connections in high strength steel

作     者：Guoqiang LI Yifan LYU Yanbo WANG Guoqiang LI;Yifan LYU;Yanbo WANG

作者机构：State Key Laboratory for Disaster Reduction in Civil EngineeringTongji UniversityShanghai 200092China College of Civil EngineeringTongji UniversityShanghai 200092China 

出 版 物：《Frontiers of Structural and Civil Engineering》 (结构与土木工程前沿（英文版）)

年 卷 期：2020年第14卷第3期

页      面：569-585页

核心收录：

学科分类：1305[艺术学-设计学（可授艺术学、工学学位）] 08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0813[工学-建筑学] 0814[工学-土木工程] 

基　　金：support by the National Natural Science Foundation of China(Grant No.51408428) 

主　　题：High strength steel bolted connection bearing behavior design codes 

摘      要：With the recent development of material science,high strength steel(HSS)has become a practical solution for landmark buildings and major *** current codes for design of bearing-type bolted connections of steel constructions were established based on the research of conventional *** the mechanical properties of HSS are different from those of conventional steels,more works should be done to develop the appropriate approach for the design of bearing-type bolted connections in HSS.A review of the research carried out on bearing-type bolted connections fabricated from conventional steel and HSS is *** up-to-date tests conducted at Tongji University on four connection types fabricated from three grades of HSS with nominal yield strengths of 550,690,and 890 MPa are *** previous research on failure modes,bearing resistance and the design with consideration of bolt hole elongation are *** is found that the behavior of bolted connections in HSS have no drastic difference compared to that of conventional steel *** the ductility is reduced,plastic deformation capacity of HSS is sufficient to ensure the load redistribution between different bolts with normal construction *** is also found that behavior of each bolt of multi-bolt connections arranged in perpendicular to load direction is almost identical to that of a single-bolt connection with the same end *** connections with bolts arranged in parallel to load direction,the deformation capacity of the whole connection depends on the minimum value between the end distance and the spacing distances in load *** comparison with existing design codes shows that Eurocode3 and Chinese GB50017-2017 are conservative for the design of bolted connections in HSS while AISC 360-16 may overestimate the bearing resistance of bolted connections.