摘要
文中所研究对象为预应力混凝土连续刚构桥,由于其具有结构强度高、抗震能力强、施工简便等优点,近年来在国内外得到快速发展和使用。以主跨100m的王家庄连续刚构桥为例,运用MIDAS Civil 2015建立空间有限元模型,通过对其进行自振特性及地震作用下的动力时程分析,得出主要振型形态及地震作用下桥墩的内力分布规律,对桥梁墩体结构抗震设计等方面提出建议。
The research object of this paper is prestressed concrete continuous rigid framebridge,because of its high structural strength, strong seismic resistance, simple construction and otheradvantages, it has been rapidly developed and used at home and abroad in recent years.TakingWangjiazhuang continuous rigid frame bridge with main span 100m as an example,the spatial finiteelement model was established by using MIDAS Civil 2015, through the analysis of the natural vibra-tion characteristics and the dynamic time history analysis under the earthquake, the main mode shapesand the internal force distribution law of the pier under the earthquake action were obtained, and somesuggestions on the seismic design of the bridge pier structure were put forward.
出处
《低温建筑技术》
2018年第2期36-39,共4页
Low Temperature Architecture Technology
基金
安阳工学院2017-2018学年大学生科技创新项目
安阳工学院2017年度校青年科研基金项目(QJJ2017011)
关键词
磷酸镁水泥
强度
耐久性
水化机理
功能材料
continuous rigid frame bridge
anti-seismic
time history analysis
