ESTUDO COMPARATIVO DO CUSTO DE VIGAS MISTAS DE AÇO-CONCRETO COM STUD BOLT E CONECTOR TRELIÇADO

Jerfson M. Lima; Maria Aurilene  Rocha; Múcio Bonifácio  Guimarães Filho; Eric Mateus Fernandes  Bezerra; Ramon Saleno Yure Rubim Costa  Silva; Luciano Mendes  Bezerra

doi:10.4025/revtecnol.v33i1.72870

Jerfson M. Lima Universidade Federal do Ceará
Maria Aurilene Rocha Universidade Federal do Ceará
Múcio Bonifácio Guimarães Filho Universidade de Brasília
Eric Mateus Fernandes Bezerra Universidade de Brasília
Ramon Saleno Yure Rubim Costa Silva Universidade de Brasília
Luciano Mendes Bezerra Universidade de Brasilia

DOI: https://doi.org/10.4025/revtecnol.v33i1.72870

Abstract

Steel-concrete composite beams are structural elements consisting of a reinforced concrete slab connected to a steel profile. The connection between these two elements is made using shear connectors. Much research has developed alternative connectors to the stud bolt that are low cost and guarantee good structural performance. Among them, the Truss-Type connector can be highlighted. The present work aims to compare the costs of applying stud bolt and Truss-Type connectors to composite beams. The formulations present in NBR 8800:2008 and in the study of Lima (2021) were used. Finally, the composition of inputs for each connector was prepared and, therefore, the unit cost of both was determined. It was found that the unit cost of the lattice connector was approximately 46% lower when compared to the stud bolt. Furthermore, the final cost of the lattice connectors for the structure was approximately 51% lower than stud bolts, representing a notable economic advantage.

Downloads

Download data is not yet available.

References

ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS. NBR 8.800: Projeto de estruturas de aço e de estruturas mistas de aço e concreto de edifícios. Rio de Janeiro, 2008.

BARBOSA, W. C. S. Estudo de conectores de cisalhamento em barras de aço para vigas mistas de aço-concreto. 2016. 511 p. Tese (Doutorado em Estruturas e Construção Civil), Universidade de Brasília, Brasília.

BEZERRA, L. M.; BARBOSA, W. C. S.; BONILLA, J.; CAVALCANTE, O. R. O. Truss-type shear connector for composite steel-concrete beams. Construction and Building Materials, v. 167, p. 757–767, 2018.

BONILLA, J.; BEZERRA, L. M.; MIRAMBELL, E. Resistance of stud shear connectors in composite beams using profiled steel sheeting. Engineering Structures, v. 187, p. 478–489, 2019.

CARINI, M. R. Estruturas mistas de aço e concreto: Projeto de edifício comercial. Universidade Federal do Rio Grande do Sul, Porto Alegre, 2014.

KIM, S. H.; KIM, K. S.; PARK, S.; AHN, J. H.; LEE, M. K. Y-type perfobond rib shear connectors subjected to fatigue loading on highway bridges. Journal of Constructional Steel Research, v. 122, p. 445–454, 2016.

LIMA, J. M.; BEZERRA, L. M.; BONILLA, J.; MIRAMBELL, E. Experimental study on full scale steel-concrete composite beams using truss-type shear connectors. Engineering Structures, v. 303, p. 117490, 2024.

LIMA, J. M.; BEZERRA, L. M.; BONILLA, J.; SILVA, R. S. Y. R. C.; BARBOSA, W. C. S. Behavior and resistance of truss-type shear connector for composite steel-concrete beams. Steel and Composite Structures, v. 36, n. 5, p. 569–586, 2020.

LIMA, J. M. Estudo experimental e numérico do comportamento de vigas mistas aço-concreto com conector treliçado. 2021. 194 p. Tese (Doutorado em Estruturas e Construção Civil), Universidade de Brasília, Brasília.

TABET-DERRAZ, M. I; KHELIL, A.; HAMDAOUI, K.; BOUMECHRA, N.; ABDALLAH, M. Experimental and numerical study of an innovative OMEGA-shaped connector for composite beams. Structures, v. 32, p. 279-297, 2021.