窄翼缘异形柱-波纹钢板剪力墙体系的抗震性能
Seismic Performances of Narrow Flange Special-shaped Column-Corrugated Steel Plate Shear Wall System
彭晓彤 1刘小荟 1高艺源 1林晨2
作者信息
- 1. 济南大学 土木建筑学院,山东 济南 250022
- 2. 山东工艺美术学院 建筑与景观设计学院,山东 济南 250399
- 折叠
摘要
针对钢结构住宅凸梁、凸柱和抗侧刚度不足的问题,提出一种新型窄翼缘异形柱-波纹钢板剪力墙体系;通过与传统H形钢柱-平钢板剪力墙体系进行对比,确定内嵌波纹钢板布置方式,采用ABAQUS软件建立所提出体系的有限元模型,对所提出体系的抗震性能进行分析,探讨外部框架截面形式与布置方式、波纹钢板厚度与剪跨比等对所提出体系的抗侧承载力、耗能能力和塑性变形能力的影响.结果表明:所提出的体系具有较大的抗侧承载力和较强的耗能能力、塑性变形能力,极限抗侧承载力为设计值的 1.73 倍,具备一定的安全储备;横向布置的波纹钢板能有效减小其作用于框架梁柱的荷载;采用十字形异形柱使所提出的体系有更强的塑性变形能力;所提出体系中的异形柱偏肢宜沿剪力墙面内方向布置,内嵌波纹钢板厚度宜取为 3～5 mm,剪跨比宜控制在 1.25左右.
Abstract
To solve the problems of convex beams,convex columns,and insufficient lateral stiffness in steel structure residential buildings,a new type of narrow flange special-shaped column-corrugated steel plate shear wall system was proposed.Comparing with the traditional H-shaped steel column-flat steel plate shear wall system,arrangement of em-bedded corrugated steel plates was determined.ABAQUS software was used to create a finite element model of the pro-posed system to analyze seismic performances of the proposed system and explore effects of external frame section shapes and layouts,corrugated steel plate thickness,and shear-span ratios on lateral bearing capacity,energy dissipation capa-bility,and plastic deformation capacity of the proposed system.The results show that the proposed system has large later-al bearing capacity as well as strong energy dissipation and plastic deformation capabilities.Its ultimate lateral bearing capacity is 1.73 times of the design value,indicating a certain safety margin.The horizontally arranged corrugated steel plates can effectively reduce loads on frame beams and columns.The use of cross-shaped special-shaped columns enhances plastic deformation capacity of the proposed system.It is advisable to place eccentric columns of the special-shaped columns in the proposed system along inner face of the shear wall,use embedded corrugated steel plates with thickness of 3 mm to 5 mm,and maintain shear-span ratio of around 1.25.
关键词
装配式钢结构/剪力墙体系/窄翼缘异形柱/波纹钢板/抗震性能Key words
prefabricated steel structure/shear wall system/narrow flange special-shaped column/corrugated steel plate/seismic performance引用本文复制引用
基金项目
山东省自然科学基金项目(ZR2019MEE009)
出版年
2024
NETL
NSTL
万方数据