MODELING NON-STATIONARY TEMPERATURE FIELDS WHEN CONSTRUCTING MASS CAST-IN-SITU REINFORCED-CONCRETE FOUNDATION SLABS
Introduction: Due to hydration heating and heat exchange with the environment during hardening, mass cast-in-situ reinforced-concrete structures exhibit non-uniform heating, which can result in early cracking and make the structures unsuitable for further use. One of the main risk factors for early...
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| Format: | Article |
| Language: | English |
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Saint Petersburg State University of Architecture and Civil Engineering
2022-06-01
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| Series: | Architecture and Engineering |
| Subjects: | |
| Online Access: | https://aej.spbgasu.ru/index.php/AE/article/view/601/230 |
| _version_ | 1811238197328347136 |
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| author | Anton Chepurnenko Grigory Nesvetaev Yuliya Koryanova |
| author_facet | Anton Chepurnenko Grigory Nesvetaev Yuliya Koryanova |
| author_sort | Anton Chepurnenko |
| collection | DOAJ |
| description | Introduction: Due to hydration heating and heat exchange with the environment during hardening, mass cast-in-situ reinforced-concrete structures exhibit non-uniform heating, which can result in early cracking and make the structures unsuitable for further use. One of the main risk factors for early cracking is the temperature difference between the center and the surface of the structure. Purpose of the study: We aimed to study how such factors as the ratio of dimensions, heat transfer conditions on the surfaces, concrete recipe, pauses during concreting and their duration affect the maximum temperature difference between the center and the surface of the structure. Methods: In the course of the study, we applied
finite element modeling in one-dimensional and three-dimensional cases using the software in the MATLAB environment that we developed earlier. Results: We established that the most significant risk factors for early cracking are heat exchange conditions on the top surface, structural thickness, and the heat release rate of concrete. Verification and validation of the model were performed based on experimental data and by comparing it with a numerical solution in the ANSYS software. |
| first_indexed | 2024-04-12T12:37:42Z |
| format | Article |
| id | doaj.art-ae3937055f0348578343ade41059ff8d |
| institution | Directory Open Access Journal |
| issn | 2500-0055 |
| language | English |
| last_indexed | 2024-04-12T12:37:42Z |
| publishDate | 2022-06-01 |
| publisher | Saint Petersburg State University of Architecture and Civil Engineering |
| record_format | Article |
| series | Architecture and Engineering |
| spelling | doaj.art-ae3937055f0348578343ade41059ff8d2022-12-22T03:32:51ZengSaint Petersburg State University of Architecture and Civil EngineeringArchitecture and Engineering2500-00552022-06-0172667810.23968/2500-0055-2022-7-2-66-78MODELING NON-STATIONARY TEMPERATURE FIELDS WHEN CONSTRUCTING MASS CAST-IN-SITU REINFORCED-CONCRETE FOUNDATION SLABSAnton Chepurnenko0Grigory Nesvetaev1Yuliya Koryanova2Don State Technical UniversityDon State Technical UniversityDon State Technical UniversityIntroduction: Due to hydration heating and heat exchange with the environment during hardening, mass cast-in-situ reinforced-concrete structures exhibit non-uniform heating, which can result in early cracking and make the structures unsuitable for further use. One of the main risk factors for early cracking is the temperature difference between the center and the surface of the structure. Purpose of the study: We aimed to study how such factors as the ratio of dimensions, heat transfer conditions on the surfaces, concrete recipe, pauses during concreting and their duration affect the maximum temperature difference between the center and the surface of the structure. Methods: In the course of the study, we applied finite element modeling in one-dimensional and three-dimensional cases using the software in the MATLAB environment that we developed earlier. Results: We established that the most significant risk factors for early cracking are heat exchange conditions on the top surface, structural thickness, and the heat release rate of concrete. Verification and validation of the model were performed based on experimental data and by comparing it with a numerical solution in the ANSYS software.https://aej.spbgasu.ru/index.php/AE/article/view/601/230mass reinforced-concrete structuresfoundation slabcrackingtemperature fieldfinite element methodinternal heat sources. |
| spellingShingle | Anton Chepurnenko Grigory Nesvetaev Yuliya Koryanova MODELING NON-STATIONARY TEMPERATURE FIELDS WHEN CONSTRUCTING MASS CAST-IN-SITU REINFORCED-CONCRETE FOUNDATION SLABS Architecture and Engineering mass reinforced-concrete structures foundation slab cracking temperature field finite element method internal heat sources. |
| title | MODELING NON-STATIONARY TEMPERATURE FIELDS WHEN CONSTRUCTING MASS CAST-IN-SITU REINFORCED-CONCRETE FOUNDATION SLABS |
| title_full | MODELING NON-STATIONARY TEMPERATURE FIELDS WHEN CONSTRUCTING MASS CAST-IN-SITU REINFORCED-CONCRETE FOUNDATION SLABS |
| title_fullStr | MODELING NON-STATIONARY TEMPERATURE FIELDS WHEN CONSTRUCTING MASS CAST-IN-SITU REINFORCED-CONCRETE FOUNDATION SLABS |
| title_full_unstemmed | MODELING NON-STATIONARY TEMPERATURE FIELDS WHEN CONSTRUCTING MASS CAST-IN-SITU REINFORCED-CONCRETE FOUNDATION SLABS |
| title_short | MODELING NON-STATIONARY TEMPERATURE FIELDS WHEN CONSTRUCTING MASS CAST-IN-SITU REINFORCED-CONCRETE FOUNDATION SLABS |
| title_sort | modeling non stationary temperature fields when constructing mass cast in situ reinforced concrete foundation slabs |
| topic | mass reinforced-concrete structures foundation slab cracking temperature field finite element method internal heat sources. |
| url | https://aej.spbgasu.ru/index.php/AE/article/view/601/230 |
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