Experimental investigation on axial compression behavior of heat-damaged concrete cylinders confined with CFRP sheets

被引：0

作者：

Zhao, Kang ^{[1
]}

Hu, Zhongjun ^{[1
]}

Wang, Boxin ^{[1
]}

Wen, Yuchuan ^{[1
]}

Han, Jingyi ^{[1
]}

Wu, Qiong ^{[1
]}

Xu, Yan ^{[1
]}

机构：

[1] Jilin Univ, Coll Construct Engn, Changchun 130026, Peoples R China

来源：

STRUCTURES | 2024年 / 70卷

基金：

中国国家自然科学基金;

关键词：

Carbon fiber-reinforced polymer (CFRP); Heat-damaged concrete cylinders; Axial compression; Heating temperature; Cooling method; HIGH-STRENGTH CONCRETE; STRESS-STRAIN MODEL; FIRE RESISTANCE; FRP; TEMPERATURES; COMPOSITES;

D O I：

10.1016/j.istruc.2024.107560

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This study focuses on the axial compression behavior of heat-damaged concrete cylinders repaired with carbon fiber-reinforced polymer (CFRP) sheets. A total of 52 specimens were tested to investigate the effects of heating temperature, CFRP layers and cooling methods on the mechanical properties of heat-damaged concrete cylinders. The test results indicated that the residual compressive strength of heat-damaged concrete with water cooling is lower than that of heat-damaged concrete with natural cooling when the exposure temperature is >= 400 degrees C. The confinement of CFRP can enhance the residual compressive strength of heat-damaged concrete. Considering the effect of the heating temperature and cooling method, a combination model was suggested to predict the ultimate strength of heat-damaged concrete confined by CFRP sheets, as well as the accuracy and applicability of the combination model were examined and demonstrated with test results and collected experimental data.

引用

页数：14

共 50 条

[41] Model of FRP-Confined Concrete Cylinders in Axial Compression
Lee, Chung-Sheng
Hegemier, Gilbert A.
JOURNAL OF COMPOSITES FOR CONSTRUCTION, 2009, 13 (05) : 442 - 454
[42] Stress-strain model for FRP confined heat-damaged concrete columns
Shayanfar, Javad
Barros, Joaquim A. O.
Rezazadeh, Mohammadali
FIRE SAFETY JOURNAL, 2023, 136
[43] Model of FRP-confined concrete cylinders in axial compression
Univ. of California, Dept. of Structural Engineering, 9500 Gilman Dr., San Diego, CA 92093-0085, United States
J Compos Constr, 5 (442-454):
[44] Bond-slip behavior between carbon fiber reinforced polymer sheets and heat-damaged concrete
Haddad, Rami H.
Al-Rousan, Rajai
Almasry, Ashraf
COMPOSITES PART B-ENGINEERING, 2013, 45 (01) : 1049 - 1060
[45] The performance of CFRP-strengthened heat-damaged metakaolin-based geopolymer concrete cylinders containing reclaimed asphalt aggregate
Abadel, Aref A.
MATERIALS SCIENCE-POLAND, 2024, 42 (02): : 125 - 142
[46] Axial Compression Behaviors of Concrete Confined by Basalt Fiber Sheets
Deng, Zongcai
Raphael-Daud, Jumbe
Xu, Haibin
INNOVATION IN CIVIL ENGINEERING, ARCHITECTURE AND SUSTAINABLE INFRASTRUCTURE, 2012, 238 : 13 - 16
[47] Concrete cylinders confined by prestressed CFRP filament winding under axial load
Rousakis, T
You, CS
De Lorenzis, L
Tamuzs, V
Tepfers, R
FIBRE-REINFORCEMENT POLYMER: REINFORCEMENT FOR CONCRETE STRUCTURES, VOLS 1 AND 2, PROCEEDINGS, 2003, : 581 - 590
[48] Experimental investigation on axial compressive behavior of FRP confined concrete columns
Li, J
Qian, JR
Jiang, JB
ADVANCES IN BUILDING TECHNOLOGY, VOLS I AND II, PROCEEDINGS, 2002, : 289 - 296
[49] EXPERIMENTAL STUDY ON AXIAL COMPRESSION BEHAVIOR OF CONCRETE COLUMNS CONFINED BY GRID STIRRUPS
Wan, Yu-Tong
Zheng, Wen-Zhong
Wang, Ying
Gongcheng Lixue/Engineering Mechanics, 2022, 39 (11): : 166 - 176
[50] Compressive behavior of heat-damaged square concrete prisms confined with basalt fiber-reinforced polymer jackets
Song, Jiang
Gao, Wan-Yang
Ouyang, Li-Jun
Zeng, Jun-Jie
Yang, Jian
Liu, Wei-Dong
ENGINEERING STRUCTURES, 2021, 242

← 1 2 3 4 5 →