建立了墙体在外界交变温度作用下的动态响应的理论模型并进行了数值求解,研究了建筑墙体的动态响应特性。该模型中考虑太阳辐射和室内通风量的影响。本文以南京市的天气数据为例,给出了建筑墙体的室内温度响应以及墙体材料对动态响应的影响。研究结果表明,相对室外温度变化,室内温度响应存在时间滞后和振幅衰减。夏季炎热,可采用通风和敷设反光材料的方法降低室内温度。%A model of dynamic response of building wall under fluctuation temperatures is developed and numerically analyzed to investigate the dynamic response performance of building wall.In the model,the influence of the solar radiation and indoor ventilation is considered.Taken the weather in Nanjing city as an example,the temperature response of indoor air and the influence of building material on dynamic response are presented.The result indicates that,compared with the variation of outdoor temperature in term of time,the response of the indoor temperature shows the phenomenon of time lag and the decrement of amplitude.In summer,ventilation to the indoor and the use of light-reflecting material on external surface is a feasible way to decrease the indoor temperature.
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