Prediction and control of temperature rise of massive reinforced concrete transfer slab with embedded cooling pipe
Reinforced concrete (RC) transfer slabs (or beams) are common support structures for high-rise or multi-use buildings. The structure serves as a new base for the upper zones and transfers considerable loads to the foundation; hence, the RC transfer slab necessitates a massive thickness design, as we...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509522009494 |
| _version_ | 1797799019674599424 |
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| author | Mien Van Tran Vinh Ngoc Chau Phu Huu Nguyen |
| author_facet | Mien Van Tran Vinh Ngoc Chau Phu Huu Nguyen |
| author_sort | Mien Van Tran |
| collection | DOAJ |
| description | Reinforced concrete (RC) transfer slabs (or beams) are common support structures for high-rise or multi-use buildings. The structure serves as a new base for the upper zones and transfers considerable loads to the foundation; hence, the RC transfer slab necessitates a massive thickness design, as well as the use of high-strength material, and should be constructed without cracks. In this paper, the temperature rise of the massive RC transfer slab controlled by embedded cooling pipes was predicted by the Ansys program, and the numerical prediction was verified by recorded data of the temperature rise of the massive RC transfer slab. Regarding to the temperature rise, both prediction data and recorded data showed that, initially, the temperature at the bottom surface and the core of the RC transfer slab rose fast, resulting in a substantial temperature differential (20.4 °C) with the top surface, and, during the cooling stage, the top surface then retained heat and cooled more slowly than the bottom surface; moreover, the model fitted quite well with the measurement at the peak temperature. Regarding cooling pipe operation, within the first four days, it was recommended that the flow rate of 30 °C cooling water was set as high as 26.5 L/m (liters/minute), and this number was subsequently increased to 30 L/m when the temperature differential within the concrete peaked at 20 h. |
| first_indexed | 2024-03-13T04:12:38Z |
| format | Article |
| id | doaj.art-893a31c924ab47a5af2176276a6040f0 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-03-13T04:12:38Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-893a31c924ab47a5af2176276a6040f02023-06-21T06:53:21ZengElsevierCase Studies in Construction Materials2214-50952023-07-0118e01817Prediction and control of temperature rise of massive reinforced concrete transfer slab with embedded cooling pipeMien Van Tran0Vinh Ngoc Chau1Phu Huu Nguyen2Faculty of Civil Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 70000, Vietnam; Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City 70000, Vietnam; Corresponding author at: Faculty of Civil Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 70000, Vietnam.Faculty of Civil Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 70000, Vietnam; Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City 70000, VietnamFaculty of Civil Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 70000, Vietnam; Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City 70000, Vietnam; Newtecons Company, 96 Phan Dang Luu Street, Phu Nhuan District, Ho Chi Minh City 70000, VietnamReinforced concrete (RC) transfer slabs (or beams) are common support structures for high-rise or multi-use buildings. The structure serves as a new base for the upper zones and transfers considerable loads to the foundation; hence, the RC transfer slab necessitates a massive thickness design, as well as the use of high-strength material, and should be constructed without cracks. In this paper, the temperature rise of the massive RC transfer slab controlled by embedded cooling pipes was predicted by the Ansys program, and the numerical prediction was verified by recorded data of the temperature rise of the massive RC transfer slab. Regarding to the temperature rise, both prediction data and recorded data showed that, initially, the temperature at the bottom surface and the core of the RC transfer slab rose fast, resulting in a substantial temperature differential (20.4 °C) with the top surface, and, during the cooling stage, the top surface then retained heat and cooled more slowly than the bottom surface; moreover, the model fitted quite well with the measurement at the peak temperature. Regarding cooling pipe operation, within the first four days, it was recommended that the flow rate of 30 °C cooling water was set as high as 26.5 L/m (liters/minute), and this number was subsequently increased to 30 L/m when the temperature differential within the concrete peaked at 20 h.http://www.sciencedirect.com/science/article/pii/S2214509522009494Artificial cooling systemField assessmentMass concreteNumerical simulationRC transfer slabThermal control plan |
| spellingShingle | Mien Van Tran Vinh Ngoc Chau Phu Huu Nguyen Prediction and control of temperature rise of massive reinforced concrete transfer slab with embedded cooling pipe Case Studies in Construction Materials Artificial cooling system Field assessment Mass concrete Numerical simulation RC transfer slab Thermal control plan |
| title | Prediction and control of temperature rise of massive reinforced concrete transfer slab with embedded cooling pipe |
| title_full | Prediction and control of temperature rise of massive reinforced concrete transfer slab with embedded cooling pipe |
| title_fullStr | Prediction and control of temperature rise of massive reinforced concrete transfer slab with embedded cooling pipe |
| title_full_unstemmed | Prediction and control of temperature rise of massive reinforced concrete transfer slab with embedded cooling pipe |
| title_short | Prediction and control of temperature rise of massive reinforced concrete transfer slab with embedded cooling pipe |
| title_sort | prediction and control of temperature rise of massive reinforced concrete transfer slab with embedded cooling pipe |
| topic | Artificial cooling system Field assessment Mass concrete Numerical simulation RC transfer slab Thermal control plan |
| url | http://www.sciencedirect.com/science/article/pii/S2214509522009494 |
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