摘要
基于几何非线性和材料非线性,对弱硬化合金和强硬化合金两种典型合金类型的铝合金框架结构进行了一阶弹性分析、二阶弹性分析和二阶弹塑性分析,并与现行《铝合金结构设计规范》(GB 50429-2007)中框架设计方法的计算结果进行比较。结果表明,只考虑几何非线性不能真实地反映铝合金框架结构的实际受力情况,材料非线性引起的塑性效应不能忽视,铝合金框架结构设计应进行二阶弹塑性分析。
Based on geometric nonlinearity and material nonlinearity, first-order elastic analysis, second-order elastic analysis and second-order elastoplastic analysis were carried out for the aluminum alloy frame structures of weak-hardening alloy and strong- hardening alloy. The results were compared with those calculated according to the frame design method specified by the current Code for Structural Design of Aluminum Alloy (GB 50429-2007). Results show that the actual stress of the aluminum alloy frame structure can’t be truly reflected when only the geometric nonlinearity is considered;the plastic effect caused by material nonlinearity can’t be ignored;second order elastoplastic analysis should be carried out in the design of aluminum alloy frame structure.
作者
张铮
黄娟娟
谈夏维
廖仁生
ZHANG Zheng;HUANG Juanjuan;TAN Xiawei;LIAO Rensheng(Fujian-Taiwan Cooperative Institute of Civil Engineering Technology in Universities of Fujian Province, Fujian University of Technology, Fuzhou 350118, China;School of Civil Engineering, Fujian University of Technology, Fuzhou 350108, China)
出处
《福建工程学院学报》
CAS
2019年第3期205-211,共7页
Journal of Fujian University of Technology
基金
福建省自然科学基金(2017J01670)
福建省高校青年自然基金(JZ160465)
福建工程学院科研发展基金(GY-Z17159)
关键词
铝合金
框架结构
二阶效应
材料非线性
aluminum alloy
frame structure
second-order effect
material nonlinearity
