超高层建筑双向斜交钢管混凝土柱框架-核心筒结构施工技术探析
Construction Technology of Bidirectional Oblique Concrete-filled Steel Tube Column Frame-core Tube Structure in Super High-rise Building
刘春贵 1胡欢1
作者信息
- 1. 江西省华侨建筑装饰工程总公司,江西 南昌 330000
- 折叠
摘要
文中以江西省某大型商业建筑为例,利用ABAQUS数值模拟软件对空钢管和混凝土钢管进行了力学模拟分析.结果表明,空钢管应力主要集中在双向斜交节点处,混凝土钢管应力分布较均匀,基本无应力集中现象;钢管内部装填混凝土时可增加钢管的塑性变形;空钢管极限承载力为309.9 kN,混凝土钢管极限承载力为756.3 kN,相比空钢管提高近2.5 倍,最大位移值相比空钢管提高近3 倍,表明钢管内部装填混凝土可显著提高钢管的塑性能力.另外,运用Tekla软件建模技术对节点进行深化设计,可有效减少施工中出现的碰撞及其他存在安全隐患的问题.
Abstract
In this paper,taking a large commercial building in Jiangxi Province as an example,the mechanical simulation of hollow steel pipe and concrete steel pipe was carried out by ABAQUS numerical simulation software.The results show that the stress of the hollow steel pipe is mainly concentrated in the bidirectional oblique joints,and the stress distribution of the concrete steel pipe is uniform,and there is basically no stress concentration phenomenon.The plastic deformation of steel pipe can be increased when concrete is filled inside the steel pipe.The ulti-mate bearing capacity of the empty steel pipe is 309.9 kN,and the ultimate bearing capacity of the concrete steel pipe is 756.3 kN,which is nearly 2.5 times higher than that of the empty steel pipe,and the maximum displacement value is nearly 3 times higher than that of the empty steel pipe,indicating that the plastic capacity of the steel pipe can be significantly improved when the concrete is loaded inside the steel pipe.In addition,the use of Tekla software modeling technology to deepen the design of nodes can effectively reduce the collision and other safety problems in the construction.
关键词
高层建筑/斜交钢框柱/深化设计/有限元Key words
High-rise building/Diagonal steel frame column/Deepen the design/Finite element引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据