摘要
横跨广东西江的金马大桥是一座独塔斜拉桥与两侧刚构相连的混凝土协作体系桥梁。本文用子空间迭代法对这种新颖结构的动力特性进行计算 ,根据反应谱理论分析该桥的抗震性能 ,并利用经验公式和节段模型试验分析大桥的抗风性能。结果表明 ,尽管本桥采用边主梁式的抗扭能力较差的主梁截面 。
Jinma bridge is the concrete cable-stayed bridge with one tower cooperated with rigid frames on both sides, which was erected over the Xijiang River in Guangdong province In this paper, the dynamic characteristic of Jinma bridge is analyzed by sub-space iteration method The authors calculate the seismic capacity of this bridge according to the theory of earthquake response spectrum, and analyze the anti-wind characteristic of this bridge by the experience formula and the segment modal experiment It is found that the aseismic and anti-wind capacity of this bridge is ensured although the torsional resistibility of the main girders of this bridge is not good
出处
《公路交通科技》
CAS
CSCD
北大核心
2003年第1期71-73,共3页
Journal of Highway and Transportation Research and Development
