Punching shear strength of waffle flat slabs
Abstract This research aimed to compare the ultimate load of 10 waffle flat slabs with different sizes of solid area and spacing between ribs. For this, a non-linear computational simulation of the slabs was carried out until their failure using the engineering software ANSYS. The failure modes and...
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| Format: | Article |
| Language: | English |
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Instituto Brasileiro do Concreto (IBRACON)
2021-01-01
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| Series: | Revista IBRACON de Estruturas e Materiais |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952021000100213&tlng=en |
| _version_ | 1818973595020296192 |
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| author | Ricardo José Carvalho Silva Dênio Ramam Carvalho de Oliveira Nívea Gabriela Benevides de Albuquerque Francisco Eudázio Suriano da Silva Júnior Felipe da Silva Leite |
| author_facet | Ricardo José Carvalho Silva Dênio Ramam Carvalho de Oliveira Nívea Gabriela Benevides de Albuquerque Francisco Eudázio Suriano da Silva Júnior Felipe da Silva Leite |
| author_sort | Ricardo José Carvalho Silva |
| collection | DOAJ |
| description | Abstract This research aimed to compare the ultimate load of 10 waffle flat slabs with different sizes of solid area and spacing between ribs. For this, a non-linear computational simulation of the slabs was carried out until their failure using the engineering software ANSYS. The failure modes and loads were analyzed, and the results showed that the models with less solid area presented less bearing capacity in comparison to the models with greater solid area when the failure mode was shearing of the ribs. The slabs with the largest solid regions experienced punching shear and behaved in a similar way as solid flat slabs, indicating compliance with the codes in relation to their punching shear strength provisions, especially with the NBR 6118. The results show that a square solid area whose length is 15% of the span is reasonable and that the ACI, Eurocode 2 and NBR 6118 provisions underestimate the shear strength of the ribs. |
| first_indexed | 2024-12-20T15:26:39Z |
| format | Article |
| id | doaj.art-41f9bdf6156146bf854906db102b5379 |
| institution | Directory Open Access Journal |
| issn | 1983-4195 |
| language | English |
| last_indexed | 2024-12-20T15:26:39Z |
| publishDate | 2021-01-01 |
| publisher | Instituto Brasileiro do Concreto (IBRACON) |
| record_format | Article |
| series | Revista IBRACON de Estruturas e Materiais |
| spelling | doaj.art-41f9bdf6156146bf854906db102b53792022-12-21T19:35:48ZengInstituto Brasileiro do Concreto (IBRACON)Revista IBRACON de Estruturas e Materiais1983-41952021-01-0114110.1590/s1983-41952021000100006Punching shear strength of waffle flat slabsRicardo José Carvalho Silvahttps://orcid.org/0000-0002-1405-4558Dênio Ramam Carvalho de Oliveirahttps://orcid.org/0000-0001-8254-4551Nívea Gabriela Benevides de Albuquerquehttps://orcid.org/0000-0002-8240-5161Francisco Eudázio Suriano da Silva Júniorhttps://orcid.org/0000-0002-9666-0526Felipe da Silva Leitehttps://orcid.org/0000-0002-2363-5901Abstract This research aimed to compare the ultimate load of 10 waffle flat slabs with different sizes of solid area and spacing between ribs. For this, a non-linear computational simulation of the slabs was carried out until their failure using the engineering software ANSYS. The failure modes and loads were analyzed, and the results showed that the models with less solid area presented less bearing capacity in comparison to the models with greater solid area when the failure mode was shearing of the ribs. The slabs with the largest solid regions experienced punching shear and behaved in a similar way as solid flat slabs, indicating compliance with the codes in relation to their punching shear strength provisions, especially with the NBR 6118. The results show that a square solid area whose length is 15% of the span is reasonable and that the ACI, Eurocode 2 and NBR 6118 provisions underestimate the shear strength of the ribs.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952021000100213&tlng=enwaffle flat slabpunching shearsolid areaAnsys |
| spellingShingle | Ricardo José Carvalho Silva Dênio Ramam Carvalho de Oliveira Nívea Gabriela Benevides de Albuquerque Francisco Eudázio Suriano da Silva Júnior Felipe da Silva Leite Punching shear strength of waffle flat slabs Revista IBRACON de Estruturas e Materiais waffle flat slab punching shear solid area Ansys |
| title | Punching shear strength of waffle flat slabs |
| title_full | Punching shear strength of waffle flat slabs |
| title_fullStr | Punching shear strength of waffle flat slabs |
| title_full_unstemmed | Punching shear strength of waffle flat slabs |
| title_short | Punching shear strength of waffle flat slabs |
| title_sort | punching shear strength of waffle flat slabs |
| topic | waffle flat slab punching shear solid area Ansys |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952021000100213&tlng=en |
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