罗晓群?覮,张锦东,杨彬.大变形下直立锁边屋面系统的水密性研究[J].湖南大学学报:自然科学版,2019,(7):45~54
大变形下直立锁边屋面系统的水密性研究
Research on Water Tightness of Standing Seam Roof System under Large Deformation
  
DOI:
中文关键词:  水密性  直立锁边板  大变形  数值模拟
英文关键词:water tightness  standing seam panel  large deformation  numerical analysis
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作者单位
罗晓群?覮,张锦东,杨彬 (同济大学 土木工程学院上海 200092) 
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中文摘要:
      为了评价直立锁边屋面系统安装在柔性屋面结构上适应大变形能力和水密性,以苏州工业园区游泳馆金属屋面系统为例,取一个6.6 m × 6.6 m试验单元设计了大变形下金属屋面系统的足尺水密性试验,建立屋面系统的整体有限元模型分析了屋面系统在结构大变形下的应力和变形,对保证屋面系统水密性的关键构造进行了精细化有限元分析. 试验和分析验证了直立锁边屋面系统具备适应柔性屋面结构大变形的变形能力,计算直立锁边角变形只有2.18°,确保了良好的水密性.
英文摘要:
      In order to study whether the standing seam roof system installed on a flexible roof structure has the ability to adapt to the large deformation of the flexible roof structure and whether panel details of the roofing system can ensure the water tightness under large deformation, taking the roof structure of the swimming stadium in Suzhou Industrial Park Sports Center as an example, a 6.6m×6.6m test unit was used to design the full-scale water tightness test of the metal roofing system under large deformation. Through numerical analysis, stress and deformation distribution of the roofing system was explored under large deformations in the flexible roof structure. A refined finite element model was also established to evaluate the water tightness of key details in the standing seam roof panels. The test and analysis verified that the standing seam roof system had the ability to adapt to the large deformation of the flexible roof structure, the calculated angle between standing seams was only 2.18°,and water tightness can be ensured at the same time.
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