【作者】 张丹； 张之颖；

【Author】 ZHANG Dan ZHANG Zhi-ying (Civil Engineering Department,Xi’an Jiao Tong University,Xi’an 710049,China)

【机构】 西安交通大学土木工程系；

【摘要】 本文论述了结构温度场求解理论,介绍了两种室外综合温度计算方法,并采用这两种热分析方法对结构温度试验模型进行了温度场数值模拟,结果表明现行规范使用的室外综合温度计算方法,因未考虑表面与大气之间存在的长波辐射等因素, 计算结果偏大；而考虑室外空气温度、太阳辐射、地面反射辐射和长波辐射、大气长波辐射等多种因素对围护结构外表面综合热作用的室外综合温度法,其数值模拟结果与实测结果更加吻合。更多还原

【Abstract】 This paper discusses the theoretical analysis of structure temperature field solution and introduces two calculating methods of external temperature.The numerical simulation on temperature field to the test model is studied.Results show that the calculating method of external temperature in the existing criteria can’t reflect the long wave radiation between surface and atmosphere,and the measured value is larger.But it shows that considering the multi factors as the external temperature,the solar radiation,the reflecting radiation,the long wave radiation and the air long wave radiation and so on to the thermal effect of the building envelopes external surface,the numerical simulation results from calculation fit well with the experimental values.更多还原