横向单调荷载作用下桥墩损伤的非线性有限元模拟  

Nonlinear Finite Element Simulation of Pier Damage under Transverse Monotonic Load

作　　者：张志宽 ZHANG Zhikuan

机构地区：[1]中铁十八局集团第四工程有限公司,天津300350

出　　处：《辽宁省交通高等专科学校学报》2025年第1期5-9,共5页Journal of Liaoning Provincial College of Communications

摘　　要：为了研究参数变化对混凝土桥墩力学性能的影响,采用Abaqus有限元程序建立了桥墩的精细化有限元模型,模拟了桥墩在单向荷载作用下的力学性能,并且与试验结果进行了对比,验证了本文所建模型的可靠。通过改变桥墩混凝土强度等级、桥墩界面形状及构造和有限元网格尺寸,对桥墩进行了参数化分析,结果表明,混凝土强度等级和双柱构造对桥墩的极限承载能力有较为明显的影响,有限元网格尺寸划分对桥墩承载力影响较小。In order to study the influence of parameter changes on the mechanical properties of concrete bridge piers,a refined finite element model of bridge piers was established by Abaqus finite element program.The mechanical properties of bridge piers under unidirectional load were simulated and compared with the experimental results,which verified the reliability of the model established in this paper.The parametric analysis of the pier is carried out by using the verified model.On this basis,the parametric analysis of the pier is carried out by changing the concrete strength grade of the pier,the interface shape and structure of the pier and the finite element mesh size.The analysis results show that the concrete strength grade and the double column structure have obvious influence on the ultimate bearing capacity of the pier,and the finite element mesh size has little influence on the bearing capacity of the pier.

关 键 词：有限元 桥墩 损伤 参数化 

分 类 号：U441[建筑科学—桥梁与隧道工程]