多层钢结构模块建筑筒体结构受力分析与仿真
Force Analysis and Simulation of Building Cylinder Structure of Multi-Storey Steel Structure Module
樊志红 1李雁英 2王玉艳1
作者信息
- 1. 山西应用科技学院建筑工程学院,山西 太原 030062
- 2. 山西大学电力与建筑学院,山西 太原 030006
- 折叠
摘要
在地震荷载作用下,建筑物内部结构会出现不同程度形变,严重时甚至会有倒塌危险.因此,研究了多层钢结构模块建筑筒体结构的受力性能.利用薄壳理论得出筒体的挠度、转度、弯矩与剪力等参数,确定模型及其边界条件,利用ABAQUS、插值算法选取恰当的有限元单元,采用整体式方法划分有限元单元,构建完成筒体结构有限元模型.当筒体结构与刚度分布均匀时,选用振型分解反应谱算法分析筒体结构受力性能,反之,则选用时程分析算法分析其受力性能.实验结果表明,在水平、垂直方向施加荷载时,筒体结构会经历弹性、弹塑性强化与塑性变化过程,在 1100KN时筒体产生负刚度,且存在剪力滞后效应.
Abstract
The internal structure of the building may experience varying degrees of deformation under earthquake load.Therefore,this paper studied the stress performance of the tubular structure of the multi-story steel module building.Firstly,the shell theory was used to calculate the parameters such as deflection,rotation,bending moment and shearing force of the cylinder,and thus to determine the model and its boundary conditions.Secondly,the ABAQUS and interpolation algorithm were adopted to select appropriate finite element units.Meanwhile,finite element elements were divided in a holistic manner,and the finite element model of the tubular structure was con-structed.When the cylinder structure and stiffness distribution were uniform,the modal decomposition response spec-trum was used to analyze the stress performance of the cylinder structure,otherwise,the time-course analysis was used to analyze its stress performance.Experimental results show that when horizontal and vertical loads are applied,the cylinder structure will undergo elastic,elastoplastic strengthening and plastic changes.When the load reaches 1100KN,the negative stiffness is formed in the cylinder,and there is a shear lag effect.
关键词
有限元/多层钢结构模块建筑/筒体结构/刚度/有限元单元Key words
ABAQUS finite element/Multi-storey steel structure module buildings/Tubular structure/Rigidity/Finite element引用本文复制引用
出版年
2024
NETL
NSTL
万方数据