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A platform for research: civil engineering, architecture and urbanism
Study on Flexural Behavior of Coral Concrete Beams Reinforced with BFRP Bars
https://orcid.org/http://orcid.org/0000-0002-4667-2318
https://orcid.org/http://orcid.org/0000-0003-0907-7904
https://orcid.org/http://orcid.org/0000-0003-0642-6910
https://orcid.org/http://orcid.org/0000-0001-6360-2402
Coral concrete structure reinforced with fiber reinforced polymer (FRP) bars is a new type of structure with broad application prospect in island construction. To this end, the failure pattern, midspan deflection, concrete strain, basalt fiber reinforced polymer (BFRP) bars strain and crack characteristics of coral concrete beams reinforced with BFRP bars (CCBRB)were analyzed through the three-point flexural tests. The test results showed that the CCBRB have two failure modes: flexural failure and shear failure, and the strain of mid-span concrete conforms to the plane section assumption. The flexural behavior of CCBRB is similar to that of ordinary concrete beams reinforced with BFRP bars (OCBRB). Reinforcement ratio increased from 1.22% to 2.34%, the cracking load and ultimate load of CCBRB increased by 33% and 25% respectively, and the mid-span deflection, crack width and average crack spacing decrease by 30%, 50% and 66% respectively. The cracking load of all specimens is 15–20 kN, about 10% of the ultimate load. CCBRB has a certain deformation recovery ability. The flexural capacity of CCBRB is calculated by the formula derived by Wang et al. The calculated value is closer to the experimental value.
Study on Flexural Behavior of Coral Concrete Beams Reinforced with BFRP Bars
https://orcid.org/http://orcid.org/0000-0002-4667-2318
https://orcid.org/http://orcid.org/0000-0003-0907-7904
https://orcid.org/http://orcid.org/0000-0003-0642-6910
https://orcid.org/http://orcid.org/0000-0001-6360-2402
Coral concrete structure reinforced with fiber reinforced polymer (FRP) bars is a new type of structure with broad application prospect in island construction. To this end, the failure pattern, midspan deflection, concrete strain, basalt fiber reinforced polymer (BFRP) bars strain and crack characteristics of coral concrete beams reinforced with BFRP bars (CCBRB)were analyzed through the three-point flexural tests. The test results showed that the CCBRB have two failure modes: flexural failure and shear failure, and the strain of mid-span concrete conforms to the plane section assumption. The flexural behavior of CCBRB is similar to that of ordinary concrete beams reinforced with BFRP bars (OCBRB). Reinforcement ratio increased from 1.22% to 2.34%, the cracking load and ultimate load of CCBRB increased by 33% and 25% respectively, and the mid-span deflection, crack width and average crack spacing decrease by 30%, 50% and 66% respectively. The cracking load of all specimens is 15–20 kN, about 10% of the ultimate load. CCBRB has a certain deformation recovery ability. The flexural capacity of CCBRB is calculated by the formula derived by Wang et al. The calculated value is closer to the experimental value.
Study on Flexural Behavior of Coral Concrete Beams Reinforced with BFRP Bars
https://orcid.org/http://orcid.org/0000-0002-4667-2318
https://orcid.org/http://orcid.org/0000-0003-0907-7904
https://orcid.org/http://orcid.org/0000-0003-0642-6910
https://orcid.org/http://orcid.org/0000-0001-6360-2402
Coral concrete structure reinforced with fiber reinforced polymer (FRP) bars is a new type of structure with broad application prospect in island construction. To this end, the failure pattern, midspan deflection, concrete strain, basalt fiber reinforced polymer (BFRP) bars strain and crack characteristics of coral concrete beams reinforced with BFRP bars (CCBRB)were analyzed through the three-point flexural tests. The test results showed that the CCBRB have two failure modes: flexural failure and shear failure, and the strain of mid-span concrete conforms to the plane section assumption. The flexural behavior of CCBRB is similar to that of ordinary concrete beams reinforced with BFRP bars (OCBRB). Reinforcement ratio increased from 1.22% to 2.34%, the cracking load and ultimate load of CCBRB increased by 33% and 25% respectively, and the mid-span deflection, crack width and average crack spacing decrease by 30%, 50% and 66% respectively. The cracking load of all specimens is 15–20 kN, about 10% of the ultimate load. CCBRB has a certain deformation recovery ability. The flexural capacity of CCBRB is calculated by the formula derived by Wang et al. The calculated value is closer to the experimental value.
Study on Flexural Behavior of Coral Concrete Beams Reinforced with BFRP Bars
Lecture Notes in Civil Engineering
Guo, Wei (editor) / Qian, Kai (editor) / Zhang, Yi (author) / Chen, Baikun (author) / Yuan, Xiaolan (author) / Liu, Bing (author)
International Conference on Green Building, Civil Engineering and Smart City ; 2022 ; Guilin, China
2022-09-08
10 pages
Article/Chapter (Book)
Electronic Resource
English
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