| 既有预应力混凝土空心板桥校核分析 |
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| 引用本文： | 孙,潇,刘振廷,闫磊源.既有预应力混凝土空心板桥校核分析[J].山西建筑,2014(15):207-208. |
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| 作者姓名： | 孙 潇 刘振廷 闫磊源 |
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| 作者单位： | [1]驻马店市公路规划勘察设计院,河南驻马店463000 [2]华北水利水电大学,河南郑州450011 |
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| 摘 要： | 依据现行新规范对既有预应力空心板桥进行了分析校核,计算出既有旧桥荷载横向分布系数,按照新规范进行荷载统计分析,求得各种工况下荷载组合情况,对空心板桥中的单梁按照规范进行复核验算,结果表明:不考虑空心板运营中强度等劣化时,其各项指标仍满足新规范要求可继续使用,因而,旧桥加宽改造时可根据桥梁实际运营情况和计算分析决定是否更换旧板,以节约资源。
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| 关 键 词： | 预应力空心板桥 加宽改造 荷载横向分布 校核分析 |
Check and analysis of existing prestressed concrete slab bridge |
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| SUN Xiao,LIU Zhen-ting,YAN Lei-yuan.Check and analysis of existing prestressed concrete slab bridge[J].Shanxi Architecture,2014(15):207-208. |
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| Authors: | SUN Xiao LIU Zhen-ting YAN Lei-yuan |
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| Affiliation: | 1. Zhumadian Highway Planning Survey ＆ Design Institute, Zhumadian 463000, China ; 2. North China University of Water Resources and Electric Power, Zhengzhou 450011, China) |
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| Abstract: | An existing prestressed concrete slab bridge was checked and analyzed based on the new codes, the load transverse distribution coefficient was calculated, and then the analysis of the loads and their combinations were carried out according with the codes. The single slab girder was analyzed with the new colds. The results showed that all indexes can meet the standard without considering the slabs concrete strength deterioration in service, and can be still used. In order to save resources, the existing slab should be analyzed to decide whether it can be continue used. |
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| Keywords: | prestressed concrete slab bridge widened reforming load transverse distribution coefficient check and analysis |
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