华中科技大学学报（自然科学版）2013，Vol.41Issue(1)：117-121,5.
桥台支座布置方式对连续梁桥地震反应的影响
Effects of abutment's bearing distribution on seismic response of continuous bridges
摘要
Abstract
A abutment's bearing distribution was advanced to avoid abutment's earthquake effects, which united the two-way sliding bearing, the elastic-plastic fender and the tension-compression link to work. Taking two continuous bridges as an example, the abutment s bearing distribution was analyzed compared with the traditional abutment's bearing distribution, which could reflect the fender s yielding force and the abutment restriction stiffness influence on the bridges lateral seismic response. Results show that as for the traditional abutment's bearing distribution, the abutment's earthquake force would increase along with the earthquake's increment. Therefore, the abutment would have the risk of damage in the earthquake. As for the new abutment's bearing distribution, the fender s lateral yielding force can be adjusted to control the abutment's earthquake force, therefore, the abutment not only shares a part of superstructure's earthquake inertia force, but also avoids itself earthquake damage. As for the seismic design of continuous bridge, based on the bridge structure and the earthquake input, the fender's reasonable yielding force can be selected to make the whole structure s seismic response best.关键词
桥梁/抗震设计/桥台/支座布置/挡块Key words
bridge/ seismic design/ abutment/ bearing distribution/ fender分类
交通工程引用本文复制引用
魏标,于向东,戴公连,文颖..桥台支座布置方式对连续梁桥地震反应的影响[J].华中科技大学学报（自然科学版）,2013,41(1):117-121,5.基金项目
国家自然科学基金资助项目(51108460) （51108460）
中国博士后科学基金资助项目(2011M500983) （2011M500983）
中南大学博士后科研启动基金资助项目 （）
中南大学自由探索计划资助项目(2012QNZT047). （2012QNZT047）
