新型轻钢龙骨体系桁架梁有限元分析
首发时间:2007-10-29
摘要:无比钢结构是一种新型的轻钢龙骨体系,我国现有的结构设计软件尚无法对其进行设计和计算,采用有限元方法是目前进行结构分析较好的选择。以无比钢桁架梁为研究对象,介绍了桁架梁的组成及做法,采用软件包ABAQUS6.4建立了梁的有限元模型,对四个典型的试验梁进行了分析,得到了梁的荷载位移关系曲线、极限承载力及破坏模态,并与试验结果进行了对比,初步验证了桁架梁有限元建模方法的可行性,找出了理论分析结果与试验数据存在一定误差的原因。
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Finite Element Analysis of Truss Beams of A New Type of Light-Gauge Steel System
Abstract:WEB Light-Gauge Steel Joist Steel System (WEB Steel) is a new type of light steel structures. Because the current structural software in China can’t be directly used to design and analyze this kind of structure, the Finite Element Method is the suitable analysis method for the structural analysis of WEB Steel. Taking WEB truss beams as the research object, the structural composition and construction of the truss beams are introduced. The Finite Element Analysis models of truss beams were built using ABAQUS 6.4 soft ware. The four typical tested beams were analysis. The load-deflection curves, limit bearing capacities and failure modes were provided and compared with the testing results, proving the building methods of the Finite Element models of WEB truss beams are practical. The error reasons were discussed between the Finite Element Analysis results and testing data.
Keywords: WEB Light-Gauge Steel Joist Structure Truss beams Finite Element Analysis model Tests Verifying
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