Behavior of Steel-Concrete-Steel sandwich structures with lightweight cement composite and novel shear connectors

K. M.A. Sohel; J. Y. Richard Liew; J. B. Yan; M. H. Zhang; K. S. Chia

doi:10.1016/j.compstruct.2012.05.023

Behavior of Steel-Concrete-Steel sandwich structures with lightweight cement composite and novel shear connectors

K. M.A. Sohel^*, J. Y. Richard Liew, J. B. Yan, M. H. Zhang, K. S. Chia

^*Corresponding author for this work

Civil and Architectural Engineering

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

94 Citations (Scopus)

Abstract

In Steel-Concrete-Steel (SCS) sandwich structure, mechanical shear connectors are commonly used to transfer longitudinal shear forces across the steel-concrete interface. In this paper, novel shear connectors such as J-hook and cable shear connectors are proposed and their performance to achieve composite strength of SCS sandwich structures is investigated. The use of these connectors together with ultra-lightweight cement composite core reduces the overall weight of SCS sandwich system making it suitable for the construction of marine and offshore structures. Static tests were carried out on SCS sandwich beams with J-hook, cable shear connectors and headed studs. Their ultimate strengths were reported and their respective failure modes were discussed. An analytical method to predict the ultimate strength of the Steel-Concrete-Steel sandwich beams with various types of shear connectors was developed and its accuracy was ascertained by comparing with the test results. Deign recommendations are made on minimum connector spacing to prevent shear cracking of concrete core and local buckling of face plates.

Original language	English
Pages (from-to)	3500-3509
Number of pages	10
Journal	Composite Structures
Volume	94
Issue number	12
DOIs	https://doi.org/10.1016/j.compstruct.2012.05.023
Publication status	Published - Dec 2012

Keywords

Cement composite
J-hook
Sandwich structure
Shear connector
Steel-Concrete-Steel
Ultra lightweight

ASJC Scopus subject areas

Ceramics and Composites
Civil and Structural Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.compstruct.2012.05.023

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title = "Behavior of Steel-Concrete-Steel sandwich structures with lightweight cement composite and novel shear connectors",

abstract = "In Steel-Concrete-Steel (SCS) sandwich structure, mechanical shear connectors are commonly used to transfer longitudinal shear forces across the steel-concrete interface. In this paper, novel shear connectors such as J-hook and cable shear connectors are proposed and their performance to achieve composite strength of SCS sandwich structures is investigated. The use of these connectors together with ultra-lightweight cement composite core reduces the overall weight of SCS sandwich system making it suitable for the construction of marine and offshore structures. Static tests were carried out on SCS sandwich beams with J-hook, cable shear connectors and headed studs. Their ultimate strengths were reported and their respective failure modes were discussed. An analytical method to predict the ultimate strength of the Steel-Concrete-Steel sandwich beams with various types of shear connectors was developed and its accuracy was ascertained by comparing with the test results. Deign recommendations are made on minimum connector spacing to prevent shear cracking of concrete core and local buckling of face plates.",

keywords = "Cement composite, J-hook, Sandwich structure, Shear connector, Steel-Concrete-Steel, Ultra lightweight",

author = "Sohel, {K. M.A.} and {Richard Liew}, {J. Y.} and Yan, {J. B.} and Zhang, {M. H.} and Chia, {K. S.}",

note = "Funding Information: The research herein was funded by Singapore Agency for Science, Technology and Research (A ∗ STAR) on a project “Sandwich composite systems with ultra lightweight cement based core for applications in extreme environment” (under the SERC grant No. 0921420044). The authors gratefully express their gratitude for the support.",

year = "2012",

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AU - Richard Liew, J. Y.

AU - Yan, J. B.

AU - Zhang, M. H.

AU - Chia, K. S.

N1 - Funding Information: The research herein was funded by Singapore Agency for Science, Technology and Research (A ∗ STAR) on a project “Sandwich composite systems with ultra lightweight cement based core for applications in extreme environment” (under the SERC grant No. 0921420044). The authors gratefully express their gratitude for the support.

PY - 2012/12

Y1 - 2012/12

N2 - In Steel-Concrete-Steel (SCS) sandwich structure, mechanical shear connectors are commonly used to transfer longitudinal shear forces across the steel-concrete interface. In this paper, novel shear connectors such as J-hook and cable shear connectors are proposed and their performance to achieve composite strength of SCS sandwich structures is investigated. The use of these connectors together with ultra-lightweight cement composite core reduces the overall weight of SCS sandwich system making it suitable for the construction of marine and offshore structures. Static tests were carried out on SCS sandwich beams with J-hook, cable shear connectors and headed studs. Their ultimate strengths were reported and their respective failure modes were discussed. An analytical method to predict the ultimate strength of the Steel-Concrete-Steel sandwich beams with various types of shear connectors was developed and its accuracy was ascertained by comparing with the test results. Deign recommendations are made on minimum connector spacing to prevent shear cracking of concrete core and local buckling of face plates.

AB - In Steel-Concrete-Steel (SCS) sandwich structure, mechanical shear connectors are commonly used to transfer longitudinal shear forces across the steel-concrete interface. In this paper, novel shear connectors such as J-hook and cable shear connectors are proposed and their performance to achieve composite strength of SCS sandwich structures is investigated. The use of these connectors together with ultra-lightweight cement composite core reduces the overall weight of SCS sandwich system making it suitable for the construction of marine and offshore structures. Static tests were carried out on SCS sandwich beams with J-hook, cable shear connectors and headed studs. Their ultimate strengths were reported and their respective failure modes were discussed. An analytical method to predict the ultimate strength of the Steel-Concrete-Steel sandwich beams with various types of shear connectors was developed and its accuracy was ascertained by comparing with the test results. Deign recommendations are made on minimum connector spacing to prevent shear cracking of concrete core and local buckling of face plates.

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KW - Steel-Concrete-Steel

KW - Ultra lightweight

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Behavior of Steel-Concrete-Steel sandwich structures with lightweight cement composite and novel shear connectors

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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