EXPERIMENT, ANALYSIS AND DESIGN OF SEMI-RIGID JOINTS TO CONCRETE FILLED STEEL TUBULAR COLUMNS
The objective of this study is to develop a novel blind bolted moment connection which is effectively and economically used in the composite frame structures.Extensive experimental studies involving the testing of sixteen bolted end plate joints to concrete filled steel tubular (CFST) columns under monotonic or cyclic loading were presented.The moment-rotation relationships,ductility,energy dissipation capacities and failure modes of the bolted end plate composite connections were measured and analyzed to explore the structural performance.The research parameters included the end plate type,the end plate thickness,the column section type and the loading type.In order to examine the stiffness characteristics of the joint types,a simplified component-based model was considered herein.A nonliear finite element analysis (FEA) model of the joint types subjected to monotonic or cyclic loading was developed to investigate the joint response.Both material and geometric nonlinearities were considered in FEA model and the Newton-Raphson incremental iteration method was used in the solution.Based on the findings,simplified design approaches can be proposed.The test results showed that the blind bolted joint exhibits favourable strength and stiffness,excellent seismic performance and better ductility.The experimental and analytical studies enable improvement to the design of blind bolted joints to be applied in engineering practice.
Concrete filled steel tubular (CFST) end plate connection blind bolt experiment analysis model design method
Jingfeng Wang Wenbin Xing Xudong Gong
School of Civil Engineering, Hefei University of Technology, Hefei 230009, P.R.China; Anhui Civil En School of Civil Engineering, Hefei University of Technology, Hefei 230009, P.R.China
国际会议
The Twelfth International Symposium on Structural Engineering (第十二届结构工程国际研讨会)
武汉
英文
770-779
2012-11-17（万方平台首次上网日期，不代表论文的发表时间）