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连续梁桥横桥向桥墩弯矩分布特点分析

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摘要 确定连续梁桥横桥向桥墩弯矩分布特点,为基于位移的抗震设计提供基础。基于典型的连续梁桥横桥向,理论分析了桥墩弯矩分布机理,然后以墩顶与墩底的弯矩比值为桥墩弯矩分布指标,采用有限元方法,就墩高分布、桥台约束情况、主梁横向惯性矩、主梁扭矩和桥墩横向惯性矩5种因素对桥墩弯矩分布的影响进行了参数分析。上述因素对于桥墩的弯矩分布有不同程度的影响,增加桥墩横向惯性矩或同时减小主梁横向惯性矩和扭矩,可以有效减小墩顶与墩底的弯矩比值。
作者 陈志伟
机构地区 江苏省南通市规划设计院有限公司
出处 《华东公路》 2015年第2期9-12,共4页 East China Highway
关键词 连续梁桥 抗震分析 桥墩 弯矩分布 基于位移
分类号 U448.215 [建筑科学—桥梁与隧道工程]
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参考文献7

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二级参考文献8

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共引文献14

华东公路
2015年 第2期

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