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混疑土桥的温度分布是非线性的,并引起自相平衡的应力分布,其分布取决于几个变量(环境条件、物理性质和材料特性、以及桥梁的位置)。混凝土箱型梁桥的温度和应力分布还与横截面的几何性质有关。本文简要地介绍了一个预示温度和应力分布的解析模型,并将从解析模型得到的结果与其他作者得到的试验结果进行比较。为了分析横截面的几何性质对混凝土箱型梁桥的温度效应和应力分布的影响,进行了一些必要的参数研究,对竖向和横向温差问题作了一些说明。最后,验证了关于混凝土箱型梁桥的温度效应的一些考虑。
The temperature distribution of the suspect soil bridge is nonlinear and causes a self-equilibrium stress distribution that depends on several variables (environmental conditions, physical properties and material properties, as well as the location of the bridge). The temperature and stress distribution of concrete box girder bridge is also related to the geometric properties of the cross section. This article presents a brief analytical model that predicts temperature and stress distributions and compares results obtained from analytical models with those obtained by other authors. In order to analyze the influence of the geometric properties of cross-section on the temperature effect and stress distribution of concrete box girder, some necessary parameters are studied, and the vertical and horizontal temperature difference problems are described. Finally, some considerations about the temperature effect of concrete box girder bridges are validated.