不锈钢结构螺栓连接的性能和设计
Using previously developed and validated finite element (FE) models, an investigation into the behaviour of stainless steel bolted connections has been carried out.Both net section rupture and bearing failure were studied.The main parameters affecting net section rupture were found to be edge distance e2 and bolt configuration. It was shown thatthe ductility of stainless steel is sufficient to ensure a failure at the full fracture load (netarea x ultimate tensile strength) for both thick and thin material and hence no reduction factor is required in the design equation. This was confirmed by reliability analysis and asuitable partial safety factor has been derived. The investigation into bearing behaviour showed that the deformation response of stainless steel connections is different from that of carbon steel connections, with stainless steel exhibiting pronounced strain hardening. Thelocations of fracture initiation obtained from the numerical models match those observed during experimental studies of carbon steel and stainless steel connections. The results ofthe parametric study were utilised as the basis for the development of design provisions forbearing failure in stainless steel bolted connections, covering both cases in which deformation controls and those for which ultimate strength is the only criterion.
不锈钢结构 螺栓连接 安全系数 变形响应
D. A. Nethercot E. L. Salih L. Gardner
Department of Civil and Environmental Engineering Imperial College London, London, SW1 2AZ, UK
国内会议
上海
中文
1-18
2009-11-13（万方平台首次上网日期，不代表论文的发表时间）