碳纤维布加固指接木梁的强度性能

doi:10.13438/j.cnki.jdzk.2020.01.010

吉首大学学报（自然科学版）

碳纤维布加固指接木梁的强度性能

薛美慧，王建省

（北方工业大学土木工程学院，北京100144）

出版日期:2020-01-25 发布日期:2020-01-19

Strength Properties of Timber Beams Reinforced with CFRP Sheets

XUE Meihui, WANG Jianxing

(School of Civil Engineering, North China University of Technology, Beijing 100144, China)

Online:2020-01-25 Published:2020-01-19
About author:XUE Meihui(1992-), femal, was born in Beijing, postgraduate of School of Civil Engineering, North China University of Technology; research area is finger-point beam and its application.
Supported by:
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）

摘要/Abstract

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.

关键词： 组件模型, 指关节, 木梁, CFRP

Abstract:

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.

Key words: component model, finger joint, timber beams, CFRP

薛美慧，王建省. 碳纤维布加固指接木梁的强度性能[J]. 吉首大学学报（自然科学版）, DOI: 10.13438/j.cnki.jdzk.2020.01.010.

XUE Meihui, WANG Jianxing. Strength Properties of Timber Beams Reinforced with CFRP Sheets[J]. Journal of Jishou University（Natural Sciences Edition), DOI: 10.13438/j.cnki.jdzk.2020.01.010.

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碳纤维布加固指接木梁的强度性能

Strength Properties of Timber Beams Reinforced with CFRP Sheets

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