波浪腹板门式刚架侧向变形计算研究  

Lateral Deformation Calculation of Sinusoidal Corrugated Web Portal Frames

作　　者：郭彦林[1] 邓静芝[1] 姜子钦[1] 王小安[1] 窦超[1] 

机构地区：[1]清华大学土木工程系,北京100084

出　　处：《施工技术（下半月）》2012年第7期30-36,120,共8页Construction Technology

摘　　要：为补充完善波浪腹板门式刚架侧向变形的空白,基于波浪腹板工形构件的受力特性,提出了适用于计算波浪腹板工形构件变形的两种梁单元有限元简化模型,通过与壳单元对比及模型参数敏感性分析,验证了梁单元简化模型的准确性和可靠性。此外,通过理论推导和有限元计算,提出了适用于单跨等截面、单跨变截面及多跨波浪腹板门式刚架侧向变形的计算方法;其中考虑了柱脚边界条件、斜梁坡度、侧向荷载作用点和分布形式等诸多因素的影响。To refine the theory for the lateral deformation calculation of sinusoidal corrugated web portal frames, this paper presents two simplified beam element models to simulate the deformation of the sinusoidal corrugated web beams, which based on the characteristics of H-shaped members with sinusoidal corrugated webs. Through the contrast with shell element and model parameter sensitivity analysis, the accuracy and reliability of the simplified models are verified. In addition, by theoretical derivation and finite element calculation, the lateral deformation calculation method suitable for both uniform and variable cross-section sinusoidal corrugated web portal frames with both single and multiple pans are proposed. The column boundary, inclined beam slope, lateral load role and distribution form are all considered in the lateral deformation calculation method.

关 键 词：钢结构 波浪腹板 门式刚架 侧向变形 梁单元 简化模型 

分 类 号：TU311.4[建筑科学—结构工程]