适用于桥梁截面温度场计算的太阳辐射模型研究综述
A state-of-the-art of research on solar radiation model for calculation of temperature distribution of bridge cross section

为选择更适用的太阳辐射计算模型进行桥梁截面积温度场分析，对国内外不同的太阳辐射计算模型进行归纳总结，主要包括桥梁截面温度场分析中必备的太阳总辐射、太阳直接辐射和太阳散射辐射. 对比分析不同数值计算模型之间的异同点及其适用范围. 分析发现基于日照时数的日太阳总辐射经验模型ngstrm-Page模型应用最多，其线性表达式的计算量小且满足精度要求. 日太阳总辐射可采用Collares-Pereira and Rabl模型换算为逐时太阳总辐射. 逐时太阳直接辐射和逐时太阳散射辐射可分别采用Hottel模型和Liu and Jordan模型进行计算. 所总结的逐时太阳辐射计算模型可作为边界条件开展桥梁截面温度场分析.
In order to choose the numerical calculation models for solar radiation applicable for the analyses of temperature distribution of bridge cross section，the literature review of different types of numerical calculation models for solar radiation at home and abroad was carried out. Including global solar radiation，direct solar radiation and diffuse solar radiation which are necessary to be used in the analyses of temperature distribution of bridge cross section. The similarities and differences of different types of numerical calculation models were analyzed and the application scope of each model were summarized. It could be found that the most commonly used numerical calculation model of daily global solar radiation based on sunshine duration is the ngstrm-Page model. The linear expression of Angstrom-Page models could reduce the calculation amount and meet accuracy requirement. By using Collares-Pereira and Rabl model，the hourly global solar radiation could be computed based on the daily global solar radiation easily. Hottel model and Liu and Jordan model could be used to calculate the hourly direct solar radiation and hourly diffuse solar radiation. The summary of numerical calculation models of the hourly solar radiation could be considered as the boundary conditions in the analyses of the temperature distribution of bridge cross section