Explicit expression for effective moment of inertia of RC beams
AbstractDeflection is an important design parameter for structures subjected to service load. This paper provides an explicit expression for effective moment of inertia considering cracking, for uniformly distributed loaded reinforced concrete (RC) beams. The proposed explicit expression can be used...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Marcílio Alves
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| Series: | Latin American Journal of Solids and Structures |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252015000300542&lng=en&tlng=en |
| _version_ | 1818848664856035328 |
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| author | K.A. Patel A. Bhardwaj S. Chaudhary A.K. Nagpal |
| author_facet | K.A. Patel A. Bhardwaj S. Chaudhary A.K. Nagpal |
| author_sort | K.A. Patel |
| collection | DOAJ |
| description | AbstractDeflection is an important design parameter for structures subjected to service load. This paper provides an explicit expression for effective moment of inertia considering cracking, for uniformly distributed loaded reinforced concrete (RC) beams. The proposed explicit expression can be used for rapid prediction of short-term deflection at service load. The explicit expression has been obtained from the trained neural network considering concrete cracking, tension stiffening and entire practical range of reinforcement. Three significant structural parameters have been identified that govern the change in effective moment of inertia and therefore deflection. These three parameters are chosen as inputs to train neural network. The training data sets for neural network are generated using finite element software ABAQUS. The explicit expression has been validated for a number of simply supported and continuous beams and it is shown that the predicted deflections have reasonable accuracy for practical purpose. A sensitivity analysis has been performed, which indicates substantial dependence of effective moment of inertia on the selected input parameters. |
| first_indexed | 2024-12-19T06:20:57Z |
| format | Article |
| id | doaj.art-254ac4780e1e485781ba2cf8b3d224b2 |
| institution | Directory Open Access Journal |
| issn | 1679-7825 |
| language | English |
| last_indexed | 2024-12-19T06:20:57Z |
| publisher | Marcílio Alves |
| record_format | Article |
| series | Latin American Journal of Solids and Structures |
| spelling | doaj.art-254ac4780e1e485781ba2cf8b3d224b22022-12-21T20:32:43ZengMarcílio AlvesLatin American Journal of Solids and Structures1679-782512354256010.1590/1679-78251272S1679-78252015000300542Explicit expression for effective moment of inertia of RC beamsK.A. PatelA. BhardwajS. ChaudharyA.K. NagpalAbstractDeflection is an important design parameter for structures subjected to service load. This paper provides an explicit expression for effective moment of inertia considering cracking, for uniformly distributed loaded reinforced concrete (RC) beams. The proposed explicit expression can be used for rapid prediction of short-term deflection at service load. The explicit expression has been obtained from the trained neural network considering concrete cracking, tension stiffening and entire practical range of reinforcement. Three significant structural parameters have been identified that govern the change in effective moment of inertia and therefore deflection. These three parameters are chosen as inputs to train neural network. The training data sets for neural network are generated using finite element software ABAQUS. The explicit expression has been validated for a number of simply supported and continuous beams and it is shown that the predicted deflections have reasonable accuracy for practical purpose. A sensitivity analysis has been performed, which indicates substantial dependence of effective moment of inertia on the selected input parameters.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252015000300542&lng=en&tlng=enConcrete crackingdeflectionfinite element analysismoment of inertianeural networkreinforced concretetension stiffening |
| spellingShingle | K.A. Patel A. Bhardwaj S. Chaudhary A.K. Nagpal Explicit expression for effective moment of inertia of RC beams Latin American Journal of Solids and Structures Concrete cracking deflection finite element analysis moment of inertia neural network reinforced concrete tension stiffening |
| title | Explicit expression for effective moment of inertia of RC beams |
| title_full | Explicit expression for effective moment of inertia of RC beams |
| title_fullStr | Explicit expression for effective moment of inertia of RC beams |
| title_full_unstemmed | Explicit expression for effective moment of inertia of RC beams |
| title_short | Explicit expression for effective moment of inertia of RC beams |
| title_sort | explicit expression for effective moment of inertia of rc beams |
| topic | Concrete cracking deflection finite element analysis moment of inertia neural network reinforced concrete tension stiffening |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252015000300542&lng=en&tlng=en |
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