基于抗震规范的新建桥梁抗震优化设计研究  

Research on Seismic Optimization Design of New Bridges Based on Seismic Code

作　　者：仝培周[1] Tong Peizhou(Infrastructure Management Division of Northeastern University,Shenyang 110819,China)

机构地区：[1]东北大学基建管理处,沈阳市110819

出　　处：《北方交通》2023年第11期14-17,共4页Northern Communications

摘　　要：通过总结汶川地震震害教训,分析原抗震规范存在的缺陷,并采用新规范的抗震理念,以汶川地震区某桥梁为例进行抗震设计。重点研究避免落梁、支座脱空、梁体碰撞、墩柱剪切破坏等桥梁震害方面采取的具体措施,确保地震发生后交通生命线不致中断,为类似工程提供一定参考。The defects of the original seismic code are analyzed by summarizing the lessons for the earthquake damage of the Wenchuan earthquake,and the seismic design is made for a bridge in the Wenchuan earthquake area as an example by adopting the seismic concept of the new code.The specific measures to avoid the bridge seismic damage such as beam falling,support detachment,beam collision,shear failure of pier column,etc.are emphatically studied,so as to ensure that the traffic lifeline is not interrupted after an earthquake,and provide certain reference for similar projects.

关 键 词：桥梁抗震 震害规律 空间动力模型 延性设计 

分 类 号：U445.75[建筑科学—桥梁与隧道工程]