中国建材科技
中國建材科技
중국건재과기
CHINA BUILDING MATERIALS SCIENCE & TECHNOLOGY
2013年
4期
109-110
,共2页
钢结构%屋盖卸载%变形%应力应变
鋼結構%屋蓋卸載%變形%應力應變
강결구%옥개사재%변형%응력응변
steel structure%unloading of the roof%deformation%stress and strain
某大型钢结构屋盖为空间管桁架构成的曲面钢结构体系，采用有限元仿真计算，分析了钢结构屋盖卸载前后的变形，根据卸载前和最终成形后的变形，确定卸载思路；分析典型部位的应力和应变情况，为结构全过程卸载安全提供了计算依据。
某大型鋼結構屋蓋為空間管桁架構成的麯麵鋼結構體繫，採用有限元倣真計算，分析瞭鋼結構屋蓋卸載前後的變形，根據卸載前和最終成形後的變形，確定卸載思路；分析典型部位的應力和應變情況，為結構全過程卸載安全提供瞭計算依據。
모대형강결구옥개위공간관항가구성적곡면강결구체계，채용유한원방진계산，분석료강결구옥개사재전후적변형，근거사재전화최종성형후적변형，학정사재사로；분석전형부위적응력화응변정황，위결구전과정사재안전제공료계산의거。
The large-scale steel structure roof is a surface steel structure system composed of spatial pipe truss. Using the finite element method simulation,the pre and post deformation of the roof was analyzed during the unloading.According to the deformation,the unloading thought of the roof was made. Also, the stress and strain of the typical parts were studied, which provided the calculation for the safety of the whole structure unloading.
