Influence of Temperature and Shrinkage on Stress of Steel Bridge Deck Pavement

doi:10.3969/j.issn.1674-0696.2013.02.03

Abstract

Abstract: According to stress characteristics of steel bridge deck paving，the thermal stress calculation formula of pavement is derived． With the help of the formula，combing with the actual paving materials and the actual service environment，the analysis of temperature stress and shrinkage stress of commonly-used paving materials has been carried out． And a contrast analysis between them and the stress of pavement under vehicle loads has also been carried out． According to the calculations， the factors of natural environment such as temperature and shrinkage are more significant in influencing the steel bridge deck pavement than that vehicle loads does．

Key words: steelbridgedeckpavement, temperature, shrinkage, stressanalysis

摘要： 根据钢桥面铺装的受力特点，推导了钢桥面铺装层的温度应力计算公式;结合实际铺装材料和实际使用环境，计算了常用铺装材料的温度及收缩应力，并与车辆荷载作用下铺装层的应力计算进行对比。研究表明:温度和干缩作用远大于车辆荷载对钢桥面铺装层的受力影响。

关键词: 钢桥面铺装, 温度, 干缩, 应力分析

CLC Number:

U443.33

Zhao Chaohua. Influence of Temperature and Shrinkage on Stress of Steel Bridge Deck Pavement[J]. Journal of Chongqing Jiaotong University(Natural Science), 2013, 32(2): 187-189.

赵朝华. 温度和干缩对钢桥面铺装层受力的影响[J]. 重庆交通大学学报（自然科学版）, 2013, 32(2): 187-189.

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