基于抗震新规范下糯扎渡大桥的抗震验算  

Seismic Checking Computations of Nuozhadu Bridge Based on New Seismic Code

作　　者：罗仕庭[1] 杨鹏飞[1] 

机构地区：[1]中国水电顾问集团昆明勘测设计研究院,云南昆明650051

出　　处：《云南水电技术》2009年第1期45-48,共4页

摘　　要：本文首先分析了《公路工程抗震设计规范》与《公路桥梁抗震设计细则》在拱桥抗震计算上的差别。并以糯扎渡水电站糯扎渡大桥为例，利用MIDAS大型有限元软件，按照《公路桥梁抗震设计细则》所推荐的方法，对糯扎渡大桥进行了反应谱法分析。计算结果表明，糯扎渡大桥主拱结构的抗震能力在新规范下也是满足要求的。This paper firstly analyzes the difference between Code for Aseismic Design of Highway and Guidelines for Seismic Design of Highway Bridges on checking computations of arch bridge. And it takes Nuozhadu Bridge of Nuozhadu Hydropower Station for example, and uses the large finite element software MIDAS to conduct response spectral method analysis for Nuozhadu Bridge according to the method commended by Guidelines for Seismic Design of Highway Bridges. The result indicates that the seismic capability for main arch structure of Nuozhadu Bridge also can meet the requirements.

关 键 词：MIDAS 糯扎渡水电站 糯扎渡大桥 反应谱法 

分 类 号：TV223.31[水利工程—水工结构工程] TU352.11[建筑科学—结构工程]