SciELO - Scientific Electronic Library Online

 
vol.7 número4Análise de cargas acidentais em pavimentos de garagemSistema de reforço à punção de lajes lisas de concreto armado com polímeros reforçados com fibra de carbono (PRFC) índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Revista IBRACON de Estruturas e Materiais

versão On-line ISSN 1983-4195

Resumo

MATEUS, G. M.; AGUIAR, A. J.; FERREIRA, M. P.  e  OLIVEIRA, D. R. C.. Two-way ribbed flat slabs with shafts. Rev. IBRACON Estrut. Mater. [online]. 2014, vol.7, n.4, pp.572-591. ISSN 1983-4195.  http://dx.doi.org/10.1590/S1983-41952014000400004.

The position of pipes and hoses for several installations still deserves special attention from designers mainly when the failure mode can be modified due to changes in behavior. This work compares experimental results of six two-way reinforced concrete ribbed flat slabs with rectangular holes close to the column and without shear reinforcement with the estimates obtained from codes ACI 318 and NBR 6118 equations. All slabs were casted and tested in the Civil Engineering Laboratory of UFPA and had dimensions of 1.800 mm x 1.800 mm x 150 mm and were submitted to central loading applied through 120 mm side square steel plates simulating the columns. EPS was used as inert material and the ribs were spaced 250 mm with 130 mm height and 75 mm average wide. The results showed that the codes' shear equations estimates agree when the ribs are considered as beam and also for punching shear, but trend to be safer when the slabs present two shafts.

Palavras-chave : flat slab; ribbed slab; shaft; holes; shear; punching.

        · resumo em Português     · texto em Português | Inglês     · Português ( pdf ) | Inglês ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons