强震区城市高架桥抗震设计的若干问题  

Some Problems in Seismic Design of Urban Viaducts in Strong Earthquake Zone

作　　者：段昕智 DUAN Xin-zhi(Shanghai Municipal Planning & Design Institute Co.,Ltd.,Shanghai 200031,China)

机构地区：[1]上海市市政规划设计研究院有限公司,上海200031

出　　处：《中国市政工程》2019年第1期27-29,39,104,共5页China Municipal Engineering

摘　　要：基于现行抗震设计规范的规定,结合实际工程,根据主线桥与匝道桥的特点,对强震区城市高架桥梁抗震设计中的几个关键性问题进行梳理和分析;包括合理抗震性能目标的确定、抗震体系的选择与设计及抗震挡块的设计。最后,给出操作性较强的建议。Based on the provisions of the current seismic design code,combined with the actual project,according to the characteristics of the main line bridge and the ramp bridge,combing and analyzing several key problems in the seismic design of urban elevated bridges in strong earthquake areas;including reasonable seismic performance targets determination,selection&design of seismic systems and design of seismic blocks.Finally,a correspondingly operative suggestion is given accordingly.

关 键 词：强震区 城市高架桥 抗震设计 抗震体系 弹塑性挡块 

分 类 号：U448.282.55[建筑科学—桥梁与隧道工程]