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Revista IBRACON de Estruturas e Materiais

On-line version ISSN 1983-4195

Rev. IBRACON Estrut. Mater. vol.2 no.2 São Paulo June 2009

http://dx.doi.org/10.1590/S1983-41952009000200002 

Comparative study of longitudinal shear design criteria for composite slabs

 

 

J. M. CalixtoI; G. BrendolanII; R. PimentaIII

IStructural Engineering Department, College of Engineering, Federal University of Minas Gerais, calixto@dees.ufmg.br, Av. do Contorno 842 - 2º andar, 30110-060 - Belo Horizonte, MG, Brazil
IIMETFORM S. A., técnico@metform.com.br, Av. Roberto Bertoletti 851- 12040-470 - Taubaté, SP, Brazil
IIICODEME S. A., roberval@codeparsa.com.br, BR 381 - Km 421- 32530-000 - Betim, MG, Brazil

 

 


ABSTRACT

ABNT NBR 8800 (2008) prescribes two longitudinal shear design criteria for composite slabs with ribbed decking: m-k method and partial interaction method. The m-k method is considered the worldwide standard method. In this method, the longitudinal resistant shear strength is obtained from linear regression of test results. The partial composite method is an alternative to the m-k method and shall be used only for composite slabs with a ductile behavior. In this scenario, the objective of this paper is to compare these two methods with respect to test results of full size composite slabs employing steel-deck MF 50 manufactured by METFORM. The analysis of the comparative study shows good correlation between the two methods with respect to the prediction of the ultimate strength of the tested composite slabs.

Keywords: composite slabs, ribbed decking, longitudinal shear.


 

 

Texto completo disponivel apenas em PDF.

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REFERENCES

[01] ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS (ABNT) - NBR 8800 - "Projeto de E strutura de Aço e de Estrutura Mista de Aço e Concreto de Edifícios", 2008, Rio de Janeiro, Brasil.         [ Links ]

[02] ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS (ABNT) - NBR 14762 - "Dimensionamento de Estruturas de Aço Constituídas por Perfis Formados a Frio", 2001, Rio de Janeiro, Brasil.         [ Links ]

[03] BRENDOLAN, G. - "Análise do comportamento e da resistência de um sistema de lajes mistas com fôrma de aço incorporada", Dissertação de Mestrado em Engenharia de Estruturas, Escola de Engenharia da Universidade Federal de Minas Gerais, 2007, Belo Horizonte, Brasil.         [ Links ]

[04] Calixto , J. M., Lavall , A. C., Melo , C. B., Pimenta , R. J., e Monteiro , R. C., "Behaviour and Strength of Composite Slabs with Ribbed Decking", Journal of Constructional Steel Research, v. 46, n. 1-3, p. 211-225, 1998, Londres, Reino Unido.         [ Links ]

[05] Canadian Sheet Steel Building Institute (CSSBI) - "CSSBI S2-2002: Criteria for the Testing of Composite Slabs", 2002, Cambridge, Canadá         [ Links ].

[06] EUROPEAN COMMIITTEE FOR STANDARDIZATION - EUROCODE 4 - "Design of Composite Steel and Concrete Structures - part 1.1: General rules and rules for buildings", 2004, Bruxelas, Bélgica.         [ Links ]

[07] JOHNSON, R. P. - "Composite Structures of Steel and Concrete - vol. 1", Blackwell Scientific Publications, Segunda Edição, 1994, Oxford, Londres, Reino Unido.         [ Links ]

[08] Lopes , E. e Simões , R., - "Experimental and A nalytical Behaviour of Composite Slabs", Steel and Composite Structures, v.8, n. 5, p.361-388, 2008, Daejeon, Coréia.         [ Links ]

 

 

Received 8 January 2009
Accepted 16 March 2009
Published 26 June 2009

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