摘要
通过有限元分析木梁和指接梁的典型破坏特征,对不同构件的CFRP进行加固分析,得出提高指接木梁弯曲承载能力的加固模式.考虑材料线性和非线性本构关系,以及损伤因素对碳纤维布加固指接木梁的力学影响,利用ABAQUS软件对指接点进行有限元分析,建立简化模型,设计出精确描述模型损伤行为和性能的数值方法.结果表明,运用CFRP加强材来增强木梁力学性能的方法有效,木梁的变形性能得到明显改善.
Based on finite element analysis(FEA)in ABAQUS software,a numerical simulation was proposed to accurately describe the damage behavior and performance of the model.Nonlinear constitutive relationships and other characteristics of different materials,influencing factors such as the length of CFRP,the layer number of CFRP and the wood interface under finger joints were under consideration.The results show that the ultimate bearing capacity is increased by CFRP.The stress is mainly concentrated on the CFRP material.
作者
薛美慧
王建省
XUE Meihui;WANG Jianxing(School of Civil Engineering,North China University of Technology,Beijing 100144,China)
出处
《吉首大学学报（自然科学版）》
CAS
2020年第1期53-61,共9页
Journal of Jishou University(Natural Sciences Edition)
基金
National Natural Science Foundation of China(11361055)
National Natural Science Foundation of Beijing(1606RJZA038)
Educational and Teaching Project of North China University of Technology(109051360018XN009/026)
关键词
组件模型
指关节
木梁
CFRP
component model
finger joint
timber beams
CFRP
