摘要
为提高承插式装配桥墩的承载能力和耗能能力,基于工字钢梁的优异抗剪性能以及耗能软钢的良好阻尼性能,设计了一种新型外置可更换的耗能装置。采用Abaqus软件分别建立了采用外置耗能装置的承插式装配桥墩与传统的承插式装配桥墩有限元模型,通过施加循环荷载,对比了两种桥墩力学性能的差异。结果表明,采用了外置耗能装置的承插式装配桥墩相对于传统的承插式装配桥墩最大承载能力提升了26.1%,屈服刚度提升了34%,耗能能力提升了32.6%,初始刚度提升了33.7%。研究表明,外置耗能装置能显著提升装配式桥墩的抗震性能,研究结果可为装配式桥墩的应用设计提供参考。
In order to improve the bearing and energy-consuming capacity of socket assembled bridge piers,a new replaceable energy-consuming device is designed.It leverages the superior shear performance of I-beams and the effective damping properties of energy-consuming soft steel.Using Abaqus software,a finite element model is created for both socket-assembled bridge pier with external energy-consuming device and the traditional counterpart.A comparative analysis of their mechanical properties is conducted under cyclic loads.The results indicate a significant improvement in maximum bearing capacity(26.1%),yield stiffness(34%),energy-consuming capacity(32.6%),and initial stiffness(33.7%)compared to the traditional pier.This study demonstrates the device ability to enhance the seismic performance of assembled bridge piers,providing a reference for the application design of assembled bridge pier.
作者
崔文楷
卜建清
郭至博
韩浩
李学铭
CUI Wenkai;BU Jianqing;GUO Zhibo;HAN Hao;LI Xueming(School of Civil Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China;School of Transportation,Shijiazhuang Tiedao University,Shijiazhuang 050043,China)
出处
《甘肃科学学报》
2025年第5期104-110,共7页
Journal of Gansu Sciences
基金
国家重点研发计划项目(2021YFB2600600,2021YFB2600605)。
关键词
桥梁构造
外置耗能装置
有限元模拟
装配式桥墩
抗震性能
Bridge structure
External energy-consuming devices
Finite element simulation
Prefabricated bridge piers
Seismic performance
