VERIFICATION METHOD FOR SEISMIC DESIGN OF BOX-SECTION STEEL BRIDGE PIERS WITH INNER CRUCIFORM WALLS
In order to improve the strength and ductility of steel bridge piers, new bridge pier with inner cruciform walls has been proposed. Inner cruciform walls of steel bridge piers have the similar role as the shear wall used in earthquake-resistant structures. However, highway bridges part-seismic design in Japan was revised in 2002 and seismic design method is changed from horizontal resistance force design to the performance-based one. The verification method of performance-based seismic design for a proposed box-section steel bridge pier with inner cruciform walls is not confirmed. In this paper, verification method of seismic design for box-section steel bridge piers with inner cruciform walls is studied. To develop static-dynamic response analytical verification, it is necessary to clarify the ultimate state of the segment of bridge pier. Firstly, the relationship of width-to-thickness ratio, axial load ratio and the ultimate strain of the steel stub columns with inner cruciform walls are obtained by FEM analysis. Secondly, the ultimate displacement is estimated through ultimate strain. Finally, the dynamic response analysis of bridge piers is carried out. Static-dynamic verification method for seismic design of box-section steel bridge piers with inner cruciform wall is investigated.
static-dynamic verification performance-based seismic design steel bridge pier
Zhanfei Wang Toshitaka Yamao Guochang Li Haixia Zhang
Shenyang Jianzhu University, China Kumarnoto University, Japan
国际会议
The 9th International Conference on Steel Space & Composite Structures(第九届国际钢材、空间结构、组合结构会议)
烟台·北京
英文
225-232
2007-10-10（万方平台首次上网日期，不代表论文的发表时间）