Experimental investigation on axial compression behavior of laminated bamboo lumber short columns confined with CFRP

被引：0

作者：

Li, Hang ^{[1
,2
]}

Li, Haitao ^{[1
,2
]}

Hong, Chaokun ^{[1
,2
,3
]}

Xiong, Zhenhua ^{[4
]}

Lorenzo, Rodolfo ^{[5
]}

Corbi, Ileana ^{[6
]}

Corbi, Ottavia ^{[6
]}

机构：

[1] College of Civil Engineering, Nanjing Forestry University, Nanjing,210037, China

[2] Joint International Research Laboratory of Bio-composite Building Materials and Structures, Nanjing Forestry University, Nanjing,210037, China

[3] College of Civil Engineering and Architecture, Zhejiang University, Hangzhou,310058, China

[4] Ganzhou Sentai Bamboo Company LTD, Ganzhou,341001, China

[5] University College London, London,WC1E 6BT, United Kingdom

[6] University of Naples Federico II, Via Claudio 21, Naples,80133, Italy

来源：

Composites Part A: Applied Science and Manufacturing | 2021年 / 150卷

基金：

中国国家自然科学基金;

关键词：

Laminating - Adhesives - Carbon fiber reinforced plastics - Ductility - Compressive strength - Axial compression - Buckling;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In order to study the axial compression behavior of short columns confined with carbon fiber reinforced polymers (CFRP), 21 specimens were tested under monotonic loading. Four failure modes were classified based on the test results which were adhesive layer failure, compression failure, buckling failure and local buckling failure. With the improvement of external reinforcement effect, the failure mode changed from compression failure to buckling failure or local buckling failure. With the increase of cloth ratio, the ductility and ultimate bearing capacity of the specimens increased, but not linearly. However, the increase range gradually decreased even the cloth ratio kept increasing. When the cloth ratio reached 2.56%, the ductility reached the maximum. The lateral deformation of laminated bamboo columns was restricted by CFRP during compression, thus lateral strain and Poisson's ratio gradually decreased with the increase of cloth ratio. Stress–strain model and formula for calculating the compressive strength of reinforced columns were proposed which gave a good agreement with the test results. © 2021

引用

共 50 条

[1] Experimental investigation on axial compression behavior of laminated bamboo lumber short columns confined with CFRP
Li, Hang
Li, Haitao
Hong, Chaokun
Xiong, Zhenhua
Lorenzo, Rodolfo
Corbi, Ileana
Corbi, Ottavia
[J]. COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2021, 150
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