ARMSUSP: a software application for the design of hanger reinforcement in indirect supports

Eduardo Marques Vieira Pereira, Ítalo Samuel da Silva Araújo, Petrus Gorgônio Bulhões da Nóbrega

Abstract


A usual situation in concrete structures designs is the indirect support, especially the crossing of two beams, where there are a support and a supported beam. The Brazilian code for the design of concrete structures NBR 6118: 2014, in this case, establishes a single guiding paragraph, theoretically correct, but with no detail that assists the engineer to plan the hanger reinforcement. In this respect, the omission of the NBR 6118 contrasts with several international codes, which set many requirements. For example, the definition of the reinforcement lengths, reduction factors, among others. The objective of this paper is to discuss the indirect support on beams and present the ARMSUSP software application to provide assistance in this reinforcement design, which incorporates several criteria. The review presented helps to understand a seemingly simple theme, often neglected by designers and not specifically defined by some codes. Finally, some examples of calculation are presented, comparing the code requirements and the parameters adopted in some Brazilian softwares of structural design.


Keywords


Indirect support; Hanger reinforcement; Beam crossing

References


ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS. NBR 6118: Projeto de estruturas de concreto – procedimento. Rio de Janeiro, 2014. 238 p.

AUSTRALIAN STANDARDS. AS 3600:2009: Concrete structures – Commentary (Supplement to AS 3600-2009). Sydney, 2014.

BAEK, K. R. Response of Reinforced Concrete Beams with Indirect Loading. Thesis (Master of Engineering) – McGill University, Montreal, 2016.

CANADIAN STANDARDS ASSOCIATION. CSA A23.3-14: Design of concrete structures. Mississauga, 2014.

COMITÉ EUROPÉEN DE NORMALISATION. Eurocode 2: Design of concrete structures - Part 1-1: General rules and rules for buildings (EN 1992-1-1:2004:E). Brussels: CEN, 2004.

FUSCO, P. B. Técnicas de Armar Estruturas de Concreto. 2. ed. São Paulo: Pini, 2013.

LEONHARDT, F.; MÖNNIG, E. Construções de Concreto – Princípios Básicos Sobre A Armação de Estruturas de Concreto Armado. v. 3. Rio de Janeiro: Interciência, 1978.

MATTOCK, A. H.; KUMAR, A. Flexural Reinforcement Stress in an Indirectly Supported Reinforced Concrete Beam. ACI Structural Journal, Farmington Hills, v. 89, n. 3, American Concrete Institute, July-August 1992.

MATTOCK, A. H.; SHEN, J. F. Joints Between Reinforced Concrete Members of Similar Depth. ACI Structural Journal, Farmington Hills, v. 89, n. 3, American Concrete Institute, May-June 1992.

PEREIRA, E. M. V. Regiões Especiais de Concreto Armado: Vigas com Apoio Indireto e Mudança Brusca de Seção. Monografia (Graduação) – Universidade Federal do Rio Grande do Norte, Natal, 2017.

PEREIRA, E. M. V.; NÓBREGA, P. G. B; NÓBREGA, S. H. S. Análise Teórica e Computacional de Regiões Especiais de Concreto Armado: Vigas com Apoio Indireto. 60º Congresso Brasileiro do Concreto. Foz do Iguaçu, 2018.

STANDARD RATING RESEARCH INSTITUTE OF THE MINISTRY OF HOUSING AND URBAN-RURAL DEVELOPMENT. GB 50010: Code for design of concrete structures. Pequim, 2010.




DOI: https://doi.org/10.18256/2358-6508.2020.v7i1.3971

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Esta obra da Revista de Engenharia Civil IMED está licenciada com uma Licença Creative Commons Atribuição 4.0 Internacional.

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