Shear Resistance of a Biaxial Hollow Composite Floor System with GFRP Plates

Jaeho Ryu; Chang Hwan Lee; Jintak Oh; Sung Won Yoon; Young K. Ju

doi:10.1061/(ASCE)ST.1943-541X.0001657

Shear Resistance of a Biaxial Hollow Composite Floor System with GFRP Plates

Jaeho Ryu, Chang Hwan Lee, Jintak Oh, Sung Won Yoon, Young K. Ju

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

A new composite floor system was developed to reduce floor-to-floor height and to improve structural capacity and fire resistance as compared with existing encased composite floor systems. The proposed system is composed of asymmetric steel beams with web openings, a biaxial hollow concrete slab, and glass fiber-reinforced plastic (GFRP) plates. The shear resistance of the typical composite beams is commonly determined based on the shear strength of the steel web alone. However, for the proposed system, because the steel web has several circular openings, the concrete contribution to the shear resistance should be included in the design equation. In this paper, tests and finite-element analyses were conducted to evaluate the contribution of the shear-resisting components in the proposed system. An asymmetric steel beam with web openings, inner concrete panels, and a biaxial hollow concrete slab within the effective width for shear were considered as shear-resisting components. Each component fully resisted the applied shear force, exceeding the expected value until failure, and the design equation suggested was suitable for predicting the shear strength of the proposed system.

Original language	English
Article number	04016180
Journal	Journal of Structural Engineering (United States)
Volume	143
Issue number	2
DOIs	https://doi.org/10.1061/(ASCE)ST.1943-541X.0001657
Publication status	Published - 2017 Feb 1

Bibliographical note

Funding Information:
This research was supported by a grant from the Korea University, the National Research Foundation of Korea (NRF-2013R1A2A2A01067872), and Architecture & Urban Development Research Program funded by Ministry of Land, Infrastructure and Transport of Korean government (15AUDP-B100343-01). The writers are grateful to the authorities for their support.

Publisher Copyright:
© 2016 American Society of Civil Engineers.

Keywords

Biaxial hollow concrete slab
Composite beam
Composite floor
Glass fiber-reinforced plastic (GFRP) plate
Metal and composite structures
Reduced story height
Shear capacity

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1061/(ASCE)ST.1943-541X.0001657

Cite this

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abstract = "A new composite floor system was developed to reduce floor-to-floor height and to improve structural capacity and fire resistance as compared with existing encased composite floor systems. The proposed system is composed of asymmetric steel beams with web openings, a biaxial hollow concrete slab, and glass fiber-reinforced plastic (GFRP) plates. The shear resistance of the typical composite beams is commonly determined based on the shear strength of the steel web alone. However, for the proposed system, because the steel web has several circular openings, the concrete contribution to the shear resistance should be included in the design equation. In this paper, tests and finite-element analyses were conducted to evaluate the contribution of the shear-resisting components in the proposed system. An asymmetric steel beam with web openings, inner concrete panels, and a biaxial hollow concrete slab within the effective width for shear were considered as shear-resisting components. Each component fully resisted the applied shear force, exceeding the expected value until failure, and the design equation suggested was suitable for predicting the shear strength of the proposed system.",

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Shear Resistance of a Biaxial Hollow Composite Floor System with GFRP Plates

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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