摘要
为研究Pushover法在Y形墩刚构桥抗震性能评估中的准确性,以一座预应力混凝土Y形墩连续刚构桥实际工程为例,采用大型有限元分析软件,建立Y形墩刚构桥的三维空间计算模型,进行了Pushover分析,并将结果与动力时程分析结果进行了比较。研究表明:Pushover方法对此类桥梁结构的抗震性能评估较为准确。
In order to study the accuracy of Pushover method in the assessment of seismic performance of Y-pier rigid-frame bridge, taking a pre-stressed concrete Y-pier continuous rigid-frame bridge as an example, a three-dimensional spatial calculation model of Y-pier rigid frame bridge is established by using large-scale finite element analysis software, and the Pushover analysis is carried out. The results of Pushover are compared with the results of dynamic time-history analysis. The study shows that the Pushover method is more accurate for evaluating the seismic performance of the similar bridges.
出处
《城市道桥与防洪》
2019年第3期61-64,11,共5页
Urban Roads Bridges & Flood Control
关键词
推覆分析
Y型墩
连续刚构
抗震性能
时程分析
Pushover analysis
Y-pier
continuous rigid-frame bridge
seismic performance
time-history analysis
