钢框架-内填薄钢板墙梁柱节点受力性能的研究

发布时间：2019-06-19 17:25

【摘要】：采用大型通用非线性有限元软件ABAQUS 6.10对节点域腹板厚度不同的三跨三层框架-薄钢板墙模型进行了数值分析,对节点域腹板的受力性能和节点左右梁端、上下柱端的受力机理进行研究。结果表明,节点域腹板两侧贴焊板补强,塑性变形发生在节点两侧梁端,节点域腹板未补强时,塑性变形集中在节点域腹板;受压柱的节点域腹板受力更为不利;钢板墙拉力场减小了受压柱节点上柱端弯矩,增加了其下柱端弯矩,当层间侧移角大于2%时,节点上下柱端弯矩大小趋于相同;拉力场减小了节点上柱端剪力,增加了下柱端剪力,当层间侧移角大于0.5%时,节点两端剪力变化变缓;数值计算和理论分析表明,《钢结构设计规范》柱腹板节点域抗剪计算公式能够满足框架-钢板墙节点域腹板的计算。
[Abstract]:The three-span three-story frame-thin steel plate wall model with different web thickness is analyzed by using the large-scale nonlinear finite element software ABAQUS 6.10. the mechanical properties of the web in the joint domain and the mechanical mechanism of the left and right end of the joint and the end of the upper and lower columns are studied. The results show that the plastic deformation occurs at the end of the beam on both sides of the joint, and the plastic deformation is concentrated in the web of the joint area when the web in the joint area is not strengthened. The stress of the web in the joint area of the compressed column is more disadvantageous. The tensile force field of the steel plate wall reduces the bending moment at the upper end of the compressed column node and increases the bending moment at the lower end of the column. When the lateral displacement angle between the layers is more than 2%, the bending moment at the upper and lower ends of the joint tends to be the same. The tensile force field reduces the shear force at the upper end of the joint and increases the shear force at the end of the lower column. When the lateral displacement angle between the two ends of the joint is more than 0.5%, the change of shear force at both ends of the joint slows down. The numerical calculation and theoretical analysis show that the shear calculation formula of the steel structure design code can satisfy the calculation of the web in the joint area of the frame-steel plate wall.
【作者单位】：中国建筑科学研究院西北分院;西安科技大学;
【基金】：中国建筑科学研究院青年基金课题
【分类号】：TU391

【相似文献】