Cracking behavior of sea sand RC beam bonded externally with CFRP plate

被引：22

作者：

Al-Fakih, Amin ^{[1
,2
]}

Hashim, Mohd Hisbany Mohd ^{[3
]}

Alyousef, Rayed ^{[4
]}

Mutafi, Ayad ^{[5
]}

Sabah, Saddam Hussein Abo ^{[6
]}

Tafsirojjaman, T. ^{[7
]}

机构：

[1] Univ Teknol PETRONAS, Dept Civil & Environm Engn, Bandar Seri Iskandar 32610, Perak, Malaysia

[2] Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China

[3] Univ Teknol MARA, Fac Engn, Sch Civil Engn, Shah Alam 40450, Selangor, Malaysia

[4] Prince Sattam Bin Abdulaziz Univ, Coll Engn Al Kharj, Dept Civil Engn, Al Kharj 16273, Saudi Arabia

[5] Univ Putra Malaysia, Dept Aerosp Engn, Seri Kembangan 43400, Selangor, Malaysia

[6] Univ Tun Hussein Onn Malaysia, Fac Civil Engn & Environm Engn, Jamilus Res Ctr Sustainable Construct JRC, Parit Raja 86400, Kagawa, Malaysia

[7] Univ Southern Queensland, Sch Civil Engn & Surveying, Ctr Future Mat CFM, Toowoomba, Qld 4350, Australia

来源：

STRUCTURES | 2021年 / 33卷

关键词：

Cracking patterns; Sea sand concrete; Flexural strength; CFRP; Finite element simulation; PLASTIC-DAMAGE MODEL; PART; CONCRETE; FRP; SHEAR; PERFORMANCE; SHEETS;

D O I：

10.1016/j.istruc.2021.05.042

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

CFRP is an alternative technique for cracking control of high-chloride reinforced concrete (RC) beams. This research, therefore, investigates the strength performance and failure mode and cracking behaviour of RC beams incorporated with sea sand bonded externally with the carbon fibre reinforced polymer (CFRP) plate. Sea sand is used as a 100% replacement of fine aggregate. Three batches of RC beams were carried out in this research, including the control beam (no sea sand neither CFRP), RC beam with normal sand bonded with CFRP plate, and RC beam with sea sand and bonded with CFRP. A four-point bending test was performed under static loading for the specimens. Finite element simulation was modelled for further comparison. The experimental findings showed that the flexural capacity of the sea sand RC beam bonded externally with CFRP plate is 5.50% greater than the flexural strength of the beam without CFRP (control beam). Besides, results demonstrated that RC beams bonded externally with CFRP were failed by plate end debonding (PED) while the control RC beam without bonding was failed at the mid-span by concrete crushing. However, the bonded RC beams were stiffer, which could lead to lower crack spacing. Finite element simulation showed very acceptable results compared to the experimental results.

引用

页码：1578 / 1589

页数：12

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