摘要
装配式预制构件优化设计是建筑产品节能、环保、全生命周期价值最大化的基础.为使装配式轻质隔墙板在满足力学性能、保温隔热性能和预制简单等条件下获得最优结构,对新型装配式轻质隔墙板进行了数值分析及优化设计.基于标准化隔墙板,将圆形孔洞调整为椭圆形孔洞,通过数值分析比较了两种隔墙板(圆形截面和椭圆形截面)的受力性能和保温隔热性能.考虑施工和使用过程可能出现的荷载模式,对隔墙板的整体刚度和薄弱点的应力集中效应进行了分析.通过设定热参数,比较了两种隔墙板在密闭空间内的降温时间.结果表明,采用椭圆形孔洞隔墙板不仅自身质量减少5. 6%,孔洞应力集中效应也有一定程度减小,其保温性能比圆形孔洞隔墙板提升了12%.
The optimum design of the prefabricated components is the foundation of energy saving,environmental protection and maximum life cycle value of building products.In this paper,the numerical analysis and optimum design of a new type of lightweight partition board are carried out to meet the requirements of mechanical properties,thermal transferring and simple prefabrication.Based on the standard partition board and numerical analysis,the circular cross section type partition board is modified to the elliptical cross section type.The numerical analysis is carried out to compare two types of partition plates(circular section and elliptical cross section)with respect to the mechanical performance and heat transfer performance.Among them,load modes which may occur in construction and service stage,are used to study the mechanical properties,effect of stress concentration and overall partition board stiffness.The heat transfer performance analysis is also done to compare the cooling time for the two kinds of partition boards in the confined space.The numerical analysis results show that the elliptical partition board not only reduces its weight by 5.6%,but also reduces the stress concentration effect of the hole to a certain extent.The thermal transferring performance of the elliptical partition board is 12%higher than that of the circular partition plate.
作者
黄仕平
胡梦宇
华夏
胡俊亮
王卫锋
HUANG Shiping;HU Mengyu;HUA Xia;HU Junliang;WANG Weifeng(School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,Guangdong Province,P.R.China;State Key Laboratory of Coal Resources and Safe Mining,China University of Mining and Technology,Xuzhou 221116,Jiangsu Province,P.R.China;Jiangsu Dingyunsun Investment Co.Ltd.,Changzhou 213163,Jiangsu Province,P.R.China;China Railway Bridge Science Research Institute Co.Ltd.,Wuhan 430034,Hubei Province,P.R.China)
出处
《深圳大学学报（理工版）》
EI
CAS
CSCD
北大核心
2019年第1期80-86,共7页
Journal of Shenzhen University(Science and Engineering)
基金
国家自然科学基金资助项目(11672108)
中央高校基本科研业务费专项资金资助项目
煤炭资源与安全开采国家重点实验室开放基金资助项目(12KF07)
广东省交通运输厅科技资助项目(科技-2012-02-024)~~
关键词
结构工程
轻质隔墙板
数值分析
刚度
应力集中系数
保温性能
structural engineering
lightweight partition board
numerical analysis
stiffness
stress concentration coefficient
thermal transfer property
