屋面保温板部品设计及尺寸效应模拟  

Part Design and Size Effect Simulation of Roof Insulation Board

作　　者：丁杨 董晶亮 王中平[3] 黄神恩 DING Yang;DONG Jing-liang;WANG Zhong-ping;HUANG Shen-en(School of Architecture Engineering,Zhejiang University,Hangzhou 310058,China;School of Civil Engineering and Architecture,East China Jiaotong University,Nanchang 330013,China;School of Materials Science and Engineering,Tongji University,Shanghai 201804,China)

机构地区：[1]浙江大学建筑工程学院,浙江杭州310058 [2]华东交通大学土木建筑学院,江西南昌330013 [3]同济大学材料科学与工程学院,上海201804

出　　处：《塑料工业》2019年第A01期146-149,158,共5页China Plastics Industry

基　　金：十三五国家重点研发项目(2016YFC0700807);国家青年基金项目(51708220);校科研启动基金项目(10012003417017);水利部黄土高原水土流失过程与控制重点实验室开放课题基金资助(201806)

摘　　要：在装配式屋面结构中,结合仿真软件COMSOL对聚氨酯材料保温性进行尺寸效应模拟,并模拟部品间拼接形式和部品间缝宽度,得出:(1)聚氨酯材料的厚度对传热过程有着很大的影响,且厚度与传热速率呈非线性增长趋势;当厚度缩小为原1/4时,传热速率会增大到10倍以上;(2)聚氨酯材料长度和宽度在初始一段时间内对传热过程有影响,而后聚氨酯的传热速率均一样。因此,长度和宽度对传热过程几乎无影响;(3)当聚氨酯材料部品构件进行拼接时,其拼接数量对传热过程有着较大的影响。In the fabricated roof structure,the dimension effect of polyurethane insulation was simulated by COMSOL,and the splicing form and gap width were simulated.It was concluded that:(1)The thickness of polyurethane material had a great influence on the heat transfer process,and the thickness and heat transfer rate showed a non-linear growth trend.When the thickness was reduced to the original quarter,the heat transfer rate would increase.(2)The length and width of polyurethane material had an effect on the heat transfer process in the initial period of time,and then the heat transfer rate of polyurethane was the same.Therefore,the length and width had almost no effect on the heat transfer process.(3)When the polyurethane parts were spliced together,the number of splices had a great influence on the heat transfer process.

关 键 词：屋面部品 聚氨酯板 COMSOL模拟 尺寸效应 

分 类 号：TQ02[化学工程] TU375.1[建筑科学—结构工程]