城市轨道交通节段拼装式双U型-箱型连续梁桥静力试验研究
马忠政
Static Test of the Precast Segment Double-U Box Continuous Girder Bridge for Urban Rail Transit
MA Zhongzheng
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作者信息:上海轨道交通十号线发展有限公司,201101,上海
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Affiliation:Shanghai Rail Transit Line 10 Development Co., Ltd., 201101, Shanghai, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2019.03.006
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中图分类号/CLCN:TU311.1:U448.21+5
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栏目/Col:研究报告
摘要:
以上海轨道交通17号线为工程背景，研究节段拼装式双U型-箱型截面连续梁桥的静力特性。结果表明：双U型-箱型截面连续梁桥的结构变形、截面应力与理论预测基本一致；U型梁截面应变沿梁高近似呈线性变化；静力加载作用下U型梁截面应力横向分布基本均匀，底板存在较弱的剪力滞效应。
Abstracts:
Based on the engineering background of Shanghai rail transit Line 17, the static behaviors of precast segment double-U box continuous girder bridge for urban rail transit are studied. It shows that the structural deformations and cross-sectional stresses of the double-U box girder are basically the same as the theoretical prediction; the U beam cross-sectional strain changes linearly along the height of girder; under static load test, the stress transverse distribution of U beam cross-sectional stress is approximately uniform, however, a weak shear lag effect on the bottom of doubleU box girder exists.
引文 / Ref:
马忠政.城市轨道交通节段拼装式双U型-箱型连续梁桥静力试验研究[J].城市轨道交通研究，2019，22（3）：23.
MA Zhongzheng.Static Test of the Precast Segment Double-U Box Continuous Girder Bridge for Urban Rail Transit[J].Urban mass transit，2019，22（3）：23.
MA Zhongzheng.Static Test of the Precast Segment Double-U Box Continuous Girder Bridge for Urban Rail Transit[J].Urban mass transit，2019，22（3）：23.
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