黑龙江科技学院学报2013，Vol.23Issue(2)：169-172,4.DOI:10.3969/j.issn.1671-0118.2013.02.014
寒冷地区混凝土箱梁温度作用影响
Research on temperature effect on reinforced box girder in cold region
摘要
Abstract
This paper is a response to the effect of low temperature environment on the performance of reinforced concrete box-girder in the north cold area of China, as happens in the box-girder of Harbin Songpu north approach bridge. The response consisting of allowing for the cold current effect, daily temperature changes, and deck pavement, simplifying scaled finite element, combined with temperature field, and performing a comparative analysis of three sections, such as finite element calculation of the influence of temperature effects on box beam, the experimental values, and the solution due to the elementary theory. The results show that the geographical position and environment temperature have a significant effect on the mechanical properties of reinforced box girder in cold region. Finite element analysis allowing for temperature influence produces a smaller engineering error than elementary theory analysis, which implies a necessary analysis of temperature effect in the case of the mechanical analysis of bridges.关键词
低温环境/混凝土箱梁/温度效应/有限元分析Key words
low-temperature condition/ reinforced box girder/ temperature effect/ finite element a-nalysis分类
交通运输引用本文复制引用
李长凤,王岚,赵延林,杜秋楠..寒冷地区混凝土箱梁温度作用影响[J].黑龙江科技学院学报,2013,23(2):169-172,4.基金项目
黑龙江省教育厅科学技术研究项目(12511487) （12511487）
