桥梁抗震设计要点分析

Analysis of the Key Points of Bridges Seismic Design

地震作为我国主要的自然灾害类型,一旦发生就可能造成极大的破坏,道路桥梁是抗震救灾的重要通道,必须具备较强的抗震性能。论文以桥梁抗震设计为分析对象,分析了桥梁震害的主要表现形式与成因;从静力法、反应谱法与动态时程分析法3个层面阐述了桥梁抗震设计的基本原理;就桥梁抗震设计方法与设计要点展开讨论,以期为桥梁工程的抗震设计水平提升贡献力量。

As the main type of natural disaster in China, the earthquake can cause great damage in the event of occurrence, and the road and bridge is the important passageway for earthquake relief, and must have strong seismic performance. Taking the bridge seismic design as the analysis object, this paper firstly analyzes the main form and the cause ofthebridge seismic damage, and then from the static method, response spectrum method and dynamic time history analysis method three aspects elaborates the basic principle of bridge seismic design, and finally discusses the method and key points of bridge seismic design, in order to make contributions to the seismic design level of bridge engineering.