Flexural performance of a new type of slightly curved arc HRB400 steel bars reinforced one-way concrete slabs
In the present study, a new type of slightly curved arc HRB400 steel bars (SCAHSs) was proposed to solve the problem of temperature-induced stress loss in mass concrete structures without cutting off steel bars. The flexural performance of SCAHSs and straight HRB400 steel bars reinforced one-way con...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2023-10-01
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| Series: | Reviews on Advanced Materials Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/rams-2023-0130 |
| _version_ | 1797659616015810560 |
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| author | Zhuang Mei-Ling Gao Li Zhu Fangzhi Sun Chuanzhi Zhu Hanbo Yu Changrong Qiao Yan |
| author_facet | Zhuang Mei-Ling Gao Li Zhu Fangzhi Sun Chuanzhi Zhu Hanbo Yu Changrong Qiao Yan |
| author_sort | Zhuang Mei-Ling |
| collection | DOAJ |
| description | In the present study, a new type of slightly curved arc HRB400 steel bars (SCAHSs) was proposed to solve the problem of temperature-induced stress loss in mass concrete structures without cutting off steel bars. The flexural performance of SCAHSs and straight HRB400 steel bars reinforced one-way concrete slabs were first experimentally investigated. Then, the effects of the shape and dimension of SCAHSs on the distribution and width of concrete cracks were analyzed and discussed. Subsequently, the synergistic tensile work characteristics between SCAHSs and concrete were presented. Finally, equations for the bearing capacity and allowable crack widths for SCAHSs in hydraulic massive structures were proposed. The test results indicated that after replacing the straight steel bars in the concrete slab with SCAHSs, the crack width of the concrete slabs increased, with the maximum crack width at the bottom of the concrete slabs increasing by a factor of 1.2–1.4. As the rise-span ratio of SCAHSs increased, the flexural stiffness of SCAHSs reinforced concrete slab decreased slightly, but the deflection increased. The allowable crack widths of SCAHSs reinforced concrete slabs under environment categories I, II, and III were 0.20, 0.17, and 0.12 mm, respectively. |
| first_indexed | 2024-03-11T18:17:43Z |
| format | Article |
| id | doaj.art-f8a7fb42a6ab49c589217a8a945c798a |
| institution | Directory Open Access Journal |
| issn | 1605-8127 |
| language | English |
| last_indexed | 2024-03-11T18:17:43Z |
| publishDate | 2023-10-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Reviews on Advanced Materials Science |
| spelling | doaj.art-f8a7fb42a6ab49c589217a8a945c798a2023-10-16T06:07:05ZengDe GruyterReviews on Advanced Materials Science1605-81272023-10-01621p. 231243.1510.1515/rams-2023-0130Flexural performance of a new type of slightly curved arc HRB400 steel bars reinforced one-way concrete slabsZhuang Mei-Ling0Gao Li1Zhu Fangzhi2Sun Chuanzhi3Zhu Hanbo4Yu Changrong5Qiao Yan6School of Transportation and Civil Engineering, Nantong University, Nantong, 226019, ChinaSchool of Civil Engineering and Architecture, Suqian College, Suqian, 223800, ChinaSchool of Civil Engineering and Architecture, Suqian College, Suqian, 223800, ChinaSchool of Civil Engineering and Architecture, Suqian College, Suqian, 223800, ChinaSchool of Civil Engineering and Architecture, Suqian College, Suqian, 223800, ChinaSchool of Transportation and Civil Engineering, Nantong University, Nantong, 226019, ChinaSchool of Civil Engineering and Architecture, Suqian College, Suqian, 223800, ChinaIn the present study, a new type of slightly curved arc HRB400 steel bars (SCAHSs) was proposed to solve the problem of temperature-induced stress loss in mass concrete structures without cutting off steel bars. The flexural performance of SCAHSs and straight HRB400 steel bars reinforced one-way concrete slabs were first experimentally investigated. Then, the effects of the shape and dimension of SCAHSs on the distribution and width of concrete cracks were analyzed and discussed. Subsequently, the synergistic tensile work characteristics between SCAHSs and concrete were presented. Finally, equations for the bearing capacity and allowable crack widths for SCAHSs in hydraulic massive structures were proposed. The test results indicated that after replacing the straight steel bars in the concrete slab with SCAHSs, the crack width of the concrete slabs increased, with the maximum crack width at the bottom of the concrete slabs increasing by a factor of 1.2–1.4. As the rise-span ratio of SCAHSs increased, the flexural stiffness of SCAHSs reinforced concrete slab decreased slightly, but the deflection increased. The allowable crack widths of SCAHSs reinforced concrete slabs under environment categories I, II, and III were 0.20, 0.17, and 0.12 mm, respectively.https://doi.org/10.1515/rams-2023-0130reinforced concrete slabsflexural performanceallowable crack widths |
| spellingShingle | Zhuang Mei-Ling Gao Li Zhu Fangzhi Sun Chuanzhi Zhu Hanbo Yu Changrong Qiao Yan Flexural performance of a new type of slightly curved arc HRB400 steel bars reinforced one-way concrete slabs Reviews on Advanced Materials Science reinforced concrete slabs flexural performance allowable crack widths |
| title | Flexural performance of a new type of slightly curved arc HRB400 steel bars reinforced one-way concrete slabs |
| title_full | Flexural performance of a new type of slightly curved arc HRB400 steel bars reinforced one-way concrete slabs |
| title_fullStr | Flexural performance of a new type of slightly curved arc HRB400 steel bars reinforced one-way concrete slabs |
| title_full_unstemmed | Flexural performance of a new type of slightly curved arc HRB400 steel bars reinforced one-way concrete slabs |
| title_short | Flexural performance of a new type of slightly curved arc HRB400 steel bars reinforced one-way concrete slabs |
| title_sort | flexural performance of a new type of slightly curved arc hrb400 steel bars reinforced one way concrete slabs |
| topic | reinforced concrete slabs flexural performance allowable crack widths |
| url | https://doi.org/10.1515/rams-2023-0130 |
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