Mechanical property of U-Shaped 65Mn steel bumpers for seismic base isolation |
| |
| Institution: | Beijing University of Civil Engineering and Architecture, Beijing 102612, China;BHB Consulting Engineers, Salt Lake City, Utah 84115, USA;Beijing University of Civil Engineering and Architecture, Beijing 102612, China;University of Utah, Salt Lake City, Utah 84112, USA;Jining Huiyuan Huazhu Architectural Design Co., Ltd, Jining 272000, China |
| |
| Abstract: | This study proposes a novel U-shaped 65Mn steel bumper as the displacement restraining device for baseisolated structures with laminated elastomeric rubber bearings.A series of bumpers with different geometric parameters were designed and tested under monotonic and cyclic quasi-static loading protocols.The experimental results from a total of 232specimens were analyzed to develop an analytical model to calculate the backbone curve and the maximum elastic restoring force for U-shaped 65Mn bumpers.Thus,the analytical equations to calculate the elastic,hardening,and unloading stiffness of U-shaped 65Mn bumpers,as well as their maximum elastic restoring force,are validated by using an additional ten groups of bumpers with varying radiuses.These analytical equations can accurately predict the mechanical parameters of U-shaped65Mn steel bumpers for a design purpose. |
| |
| Keywords: | |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
