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粘贴钢板加固预应力连续箱梁梁底的数值分析

刘国明

交通标准化Issue(18):99-101,104,4.
交通标准化Issue(18):99-101,104,4.

粘贴钢板加固预应力连续箱梁梁底的数值分析

刘国明1

作者信息

  • 1. 河北省交通规划设计院,河北 石家庄 050011
  • 折叠

摘要

Abstract

Prestressed concrete continuous box girder is a kind of structure form often used in expressway long-span bridge in Hebei province. With the increase of operation time and the growth of loading, crack issues in beam bottom become more prominent. The article analyzes the fracture types according to the causes of prestressed continuous box girder beam bottom bending cracks, and puts forward the reinforce-ment plan aiming at these type of conditions. In addition, the article uses Midas software(finite element nu-merical simulation software) to make bridge analysis and calculation for Ziya New River Bridge before strengthening and after strengthening respectively and provides a theoretical and practical basis for the similar bridge reinforcement in future.

关键词

预应力连续箱梁/有限元/粘贴钢板加固/现场试验

Key words

prestressed continuous box girder/finite element/paste the steel reinforcement/field test

分类

交通工程

引用本文复制引用

刘国明..粘贴钢板加固预应力连续箱梁梁底的数值分析[J].交通标准化,2014,(18):99-101,104,4.

交通标准化

1002-4786

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