某超高层项目钢管混凝土组合柱应用
Application of concrete filled steel tubular composite column in a super high-rise project
程向东 1唐笑一 1王明 1吴联定 2卫江华 1伏贤哲1
作者信息
- 1. 成都基准方中建筑设计有限公司,贵阳 550081
- 2. 上海建工集团股份有限公司, 上海 200080;上海超高层建筑智能建造工程技术研究中心, 上海 200080
- 折叠
摘要
某超高层项目荷载较大,导致框架柱截面较大,严重影响建筑空间使用.采用钢管混凝土组合柱,和型钢混凝土柱相比,标准层每根柱节约建筑有效使用面积 1.5～1.8m2,结构主体成本节约近 1000 万元.提出了对钢管进行开孔的梁柱节点做法并分析五种不同节点方案,采用大型通用有限元软件ABAQUS进行仿真分析,充分考虑框架梁对节点的约束作用,得到五种节点方案的极限承载力及钢管的最大应力,结果表明采用钢管开孔的梁柱节点做法可行,并得到最合理的开孔形式;分别对 7 种不同箍筋形式进行受力性能分析,并考虑实际施工因素,得到最为合理的箍筋设置形式.
Abstract
The large load of a super high-rise project leads to a large cross-section of frame columns,which seriously affects the use of building space.The concrete filled steel tubular composite column was used.Compared with the steel reinforced concrete column,each column of the standard layer saves the effective use area of the building by 1.5～1.8m2,and the cost of the main structure is saved by nearly 10 million yuan.The beam-column joint method of opening the steel pipe was proposed and five different joint schemes were analyzed.The large general finite element software ABAQUS was used for simulation analysis,and the limiting capacity of the five joint schemes and the maximum stress of the steel pipe were obtained by fully considering the constraint effect of the frame beam on the joint.The results show that the beam-column joint method using the steel pipe opening is feasible.The most reasonable opening form was obtained.The mechanical performance of seven different stirrup types were analyzed,and the most reasonable stirrup setting form was obtained by considering the actual construction factors.
关键词
超高层结构/钢管混凝土组合柱/型钢混凝土柱/套箍指标/轴压比/梁柱节点Key words
super high-rise structure/concrete filled steel tubular composite column/steel reinforced concrete column/confinement index/axial compression ratio/beam-column joint引用本文复制引用
基金项目
国家重点研发计划项目(2018YFC0705800)
国家重点研发计划项目(2023YFC3009400)
出版年
2024
NETL
NSTL
万方数据