桥梁工程抗震设计中减隔震技术的应用研究

王宇飞

兰州现代职业学院

Research on Seismic Mitigation and Isolation Technology in the Bridge Engineering Seismic Design

Yufei Wang

Lanzhou Modern Vocational College

摘要：桥梁工程是我国重要的基础设施。震动是导致桥梁损毁的主要原因，抗震设计中减隔震技术的应用一致以来都是桥梁工程设计和建造关注的重点。从桥梁支座、桥梁基础、桥梁上部结构、桥梁下部结构分析桥梁工程抗震设计要点，并从上部结构限位措施设计不足，支座类型选择不当，对液化土等不良地质情况考虑不足等方面分析桥梁工程抗震设计存在的问题，基于此从强度性能、材料延性以及性能基础方面提出桥梁抗震设计方法。以某桥梁工程项目为例，抗震设计方案拟采用盆式橡胶支座。为了保障桥梁工程的安全性和耐久性，对桥梁工程减隔震系统设计方案进行进一步论证和优化，最终选择最佳的减隔震设计方案。实践证明，合理应用抗震设计方法及减隔震装置，可有效地保障桥梁工程在极端环境下及常规使用中的安全性和结构稳定性。

关键词：桥梁工程;减隔震;强度性能;材料延性;性能效果

Abstract: The bridge engineering plays a vital role in infrastructure in China. The shock is the primary cause of bridge damage. As a result, the application of seismic mitigation and isolation technology has always been a focus of attention in bridge engineering design and construction. This paper analyses the critical aspects of seismic design in bridge engineering, including bridge bearings, foundations, superstructures, and substructures. It also analyses the challenges within the seismic design, such as the inadequate design of upper structure limiting measures, the inappropriate selection of bridge-bearing types, and the lack of consideration for adverse geological conditions like liquefied soil. Therefore, the paper proposes seismic design methods focusing on strength performance, material ductility, and performance-based design. Taking a specific bridge project as a case study, the seismic design plan opts for the use of basin rubber bearings. The paper further demonstrates and optimizes the design scheme of seismic mitigation and isolation system, and identifies the most effective strategy, ensuring the safety and durability of bridge engineering. The practice has demonstrated that the effective application of seismic design methods and seismic mitigation and isolation devices can significantly ensure the safety and structural stability of bridge engineering in general and extreme circumstances.

Keywords: Bridge Engineering; Seismic Mitigation and Isolation; Strength Performance; Material Ductility; Performance Effectiveness

来源：中国知网

发表时间：2024年10月10日

检索：姜亦单

翻译：朱柳丹

一审：唐沁雯

二审：彭莉

三审：罗玲娟

上传发布：姜浩