地震工程学报2013，Vol.35Issue(1)：56-61,6.DOI:10.3969/j.issn.1000-0844.2013.01.0056
罕遇地震下空心薄壁高墩大跨T形刚构桥弹塑性地震反应分析
Elastic-plastic Seismic Response Analysis of Hollow Thin-walled High-pier Large-span T-Shaped Rigid Frame Bridge under High-Level Earthquake Conditions
李林1
作者信息
- 1. 兰州铁道设计院有限公司,甘肃兰州 730000
- 折叠
摘要
Abstract
By using structure analysis software, a finite element model of a hollow thin-walled high - pier and large-span T-shape rigid frame bridge is built for seismic analysis. The elastic-plastic seismic response is calculated by using the nonlinear dynamic time -history response method for high-level earthquakes in high-intensity seismic regions. The results are compared by using the linear time-history and response-spectrum methods. The seismic ductility performance of the hollow thin-walled high-pier structure is also analyzed and evaluated. It is concluded that the hollow high -pier thin-walled T-shaped rigid frame railway bridge is in weak nonlinear state under high-level earthquake conditions; however, the damage is small, as it has good seismic-resistant capability. Compared with the elastic seismic response, the seismic forces experienced by the structure are significantly reduced in the nonlinear plastic response.关键词
空心薄壁高墩/T形刚构桥/弹塑性/地震反应/非线性动态时程反应法Key words
Hollow thin-walled high-pier/ T-shaped rigid frame bridge/ Elastic-plastic/ Seismic response/ Nonlinera dynamic time-history response method分类
交通工程引用本文复制引用
李林..罕遇地震下空心薄壁高墩大跨T形刚构桥弹塑性地震反应分析[J].地震工程学报,2013,35(1):56-61,6.
