A Mixed FEM for Studying Jointed Concrete Pavement Blowups
This work aims to study the compressive buckling and consequent blowup of jointed concrete pavements due to thermal rise. For this purpose, a simple and effective mixed FEM, originally introduced for performing static and buckling analyses of beams on elastic supports, is extended for performing a p...
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MDPI AG
2025-04-01
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| Series: | Infrastructures |
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| Online Access: | https://www.mdpi.com/2412-3811/10/4/86 |
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| author | Daniele Baraldi |
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| description | This work aims to study the compressive buckling and consequent blowup of jointed concrete pavements due to thermal rise. For this purpose, a simple and effective mixed FEM, originally introduced for performing static and buckling analyses of beams on elastic supports, is extended for performing a preliminary study of jointed concrete pavements. An elastic Euler–Bernoulli beam in frictionless and bilateral contact with an elastic support is considered. Three different elastic support models are assumed, namely a Winkler support, an elastic half-space (3D), and half-plane (2D). The transversal pavement joint or crack is modeled employing a hinge at the beam midpoint with nil rotational stiffness. Numerical tests are performed by determining critical loads and the corresponding modal shapes, with particular attention to the first minimum critical load related to pavement blowup. From a theoretical point of view, the results show that minimum critical loads converge to existing results in the case of Winkler support, whereas new results are obtained in the case of the 2D and 3D support types. Associated modal shapes have maximum upward displacements at the beam midpoint. The second and subsequent critical loads, together with the corresponding sinusoidal modal shapes, converge to existing results. From a practical point of view, minimum critical loads represent a lower bound for estimating axial forces due to thermal variation causing jointed pavement blowup. |
| format | Article |
| id | doaj-art-8e337b0378d44ba8a29610c701425da4 |
| institution | OA Journals |
| issn | 2412-3811 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
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| series | Infrastructures |
| spelling | doaj-art-8e337b0378d44ba8a29610c701425da42025-08-20T02:28:28ZengMDPI AGInfrastructures2412-38112025-04-011048610.3390/infrastructures10040086A Mixed FEM for Studying Jointed Concrete Pavement BlowupsDaniele Baraldi0Department of Architecture, Università Iuav di Venezia, 30123 Venezia, ItalyThis work aims to study the compressive buckling and consequent blowup of jointed concrete pavements due to thermal rise. For this purpose, a simple and effective mixed FEM, originally introduced for performing static and buckling analyses of beams on elastic supports, is extended for performing a preliminary study of jointed concrete pavements. An elastic Euler–Bernoulli beam in frictionless and bilateral contact with an elastic support is considered. Three different elastic support models are assumed, namely a Winkler support, an elastic half-space (3D), and half-plane (2D). The transversal pavement joint or crack is modeled employing a hinge at the beam midpoint with nil rotational stiffness. Numerical tests are performed by determining critical loads and the corresponding modal shapes, with particular attention to the first minimum critical load related to pavement blowup. From a theoretical point of view, the results show that minimum critical loads converge to existing results in the case of Winkler support, whereas new results are obtained in the case of the 2D and 3D support types. Associated modal shapes have maximum upward displacements at the beam midpoint. The second and subsequent critical loads, together with the corresponding sinusoidal modal shapes, converge to existing results. From a practical point of view, minimum critical loads represent a lower bound for estimating axial forces due to thermal variation causing jointed pavement blowup.https://www.mdpi.com/2412-3811/10/4/86concrete pavementblowupelastic supportbucklingweak sectionjointed pavement |
| spellingShingle | Daniele Baraldi A Mixed FEM for Studying Jointed Concrete Pavement Blowups Infrastructures concrete pavement blowup elastic support buckling weak section jointed pavement |
| title | A Mixed FEM for Studying Jointed Concrete Pavement Blowups |
| title_full | A Mixed FEM for Studying Jointed Concrete Pavement Blowups |
| title_fullStr | A Mixed FEM for Studying Jointed Concrete Pavement Blowups |
| title_full_unstemmed | A Mixed FEM for Studying Jointed Concrete Pavement Blowups |
| title_short | A Mixed FEM for Studying Jointed Concrete Pavement Blowups |
| title_sort | mixed fem for studying jointed concrete pavement blowups |
| topic | concrete pavement blowup elastic support buckling weak section jointed pavement |
| url | https://www.mdpi.com/2412-3811/10/4/86 |
| work_keys_str_mv | AT danielebaraldi amixedfemforstudyingjointedconcretepavementblowups AT danielebaraldi mixedfemforstudyingjointedconcretepavementblowups |