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Behavior of Composite Beams Using Lightweight Concrete Slabs Reinforced With GFRP Bars.

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Title: Behavior of Composite Beams Using Lightweight Concrete Slabs Reinforced With GFRP Bars.
Authors: Tran, The Truyen1 (AUTHOR), Pham, Van Hung1 (AUTHOR), Nguyen, Xuan Tung2 (AUTHOR) tungnx_ph@utc.edu.vn, Nguyen, Dac Duc1 (AUTHOR), Bui, Thanh Tung1 (AUTHOR), Dao, Quang Huy3 (AUTHOR), Khan, Afzal Husain (AUTHOR) ahkhan@jazanu.edu.sa
Source: Advances in Civil Engineering. 3/26/2026, Vol. 2026, p1-22. 22p.
Subjects: Lightweight concrete, Reinforcing bars, Composite construction, Structural design, Sustainability, Computer simulation
Abstract: This study examines the structural performance and sustainability aspects of steel–concrete composite beams utilizing lightweight concrete (LWC) slabs reinforced with glass fiber‐reinforced polymer (GFRP) bars. A total of six beams were tested under four‐point bending, comparing normal concrete (NC) slabs against lightweight slabs reinforced with different ratios of steel and GFRP reinforcement. The investigation focused on mid‐span deflection, stress distribution, crack development, and failure modes. Results demonstrated that beams with NC slabs exhibited higher ultimate load capacities; however, the GFRP‐reinforced LWC slabs showed better crack width control, contributing significantly to enhanced durability. Interestingly, despite the lower elastic modulus of GFRP bars, the stiffness of lightweight slabs fully reinforced with GFRP bars was comparable to steel‐reinforced counterparts. Numerical simulations validated by experimental results highlighted the potential of GFRP reinforcement in sustainable composite beam designs, particularly suitable for structures exposed to aggressive environmental conditions, thus supporting the broader goals of sustainability in construction. Based on the identified comparative advantages, a proposal for the full‐scale application of composite steel beams with LWC slabs will be presented. Subsequently, a comparative analysis will be conducted to further demonstrate the feasibility and applicability of this structural solution. [ABSTRACT FROM AUTHOR]
Copyright of Advances in Civil Engineering is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Behavior of Composite Beams Using Lightweight Concrete Slabs Reinforced With GFRP Bars.
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  Data: <searchLink fieldCode="AR" term="%22Tran%2C+The+Truyen%22">Tran, The Truyen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pham%2C+Van+Hung%22">Pham, Van Hung</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nguyen%2C+Xuan+Tung%22">Nguyen, Xuan Tung</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> tungnx_ph@utc.edu.vn</i><br /><searchLink fieldCode="AR" term="%22Nguyen%2C+Dac+Duc%22">Nguyen, Dac Duc</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bui%2C+Thanh+Tung%22">Bui, Thanh Tung</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dao%2C+Quang+Huy%22">Dao, Quang Huy</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Khan%2C+Afzal+Husain%22">Khan, Afzal Husain</searchLink> (AUTHOR)<i> ahkhan@jazanu.edu.sa</i>
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  Data: <searchLink fieldCode="JN" term="%22Advances+in+Civil+Engineering%22">Advances in Civil Engineering</searchLink>. 3/26/2026, Vol. 2026, p1-22. 22p.
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  Data: <searchLink fieldCode="DE" term="%22Lightweight+concrete%22">Lightweight concrete</searchLink><br /><searchLink fieldCode="DE" term="%22Reinforcing+bars%22">Reinforcing bars</searchLink><br /><searchLink fieldCode="DE" term="%22Composite+construction%22">Composite construction</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+design%22">Structural design</searchLink><br /><searchLink fieldCode="DE" term="%22Sustainability%22">Sustainability</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This study examines the structural performance and sustainability aspects of steel–concrete composite beams utilizing lightweight concrete (LWC) slabs reinforced with glass fiber‐reinforced polymer (GFRP) bars. A total of six beams were tested under four‐point bending, comparing normal concrete (NC) slabs against lightweight slabs reinforced with different ratios of steel and GFRP reinforcement. The investigation focused on mid‐span deflection, stress distribution, crack development, and failure modes. Results demonstrated that beams with NC slabs exhibited higher ultimate load capacities; however, the GFRP‐reinforced LWC slabs showed better crack width control, contributing significantly to enhanced durability. Interestingly, despite the lower elastic modulus of GFRP bars, the stiffness of lightweight slabs fully reinforced with GFRP bars was comparable to steel‐reinforced counterparts. Numerical simulations validated by experimental results highlighted the potential of GFRP reinforcement in sustainable composite beam designs, particularly suitable for structures exposed to aggressive environmental conditions, thus supporting the broader goals of sustainability in construction. Based on the identified comparative advantages, a proposal for the full‐scale application of composite steel beams with LWC slabs will be presented. Subsequently, a comparative analysis will be conducted to further demonstrate the feasibility and applicability of this structural solution. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Group: Ab
  Data: <i>Copyright of Advances in Civil Engineering is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1155/adce/7066274
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        Text: English
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      – SubjectFull: Lightweight concrete
        Type: general
      – SubjectFull: Reinforcing bars
        Type: general
      – SubjectFull: Composite construction
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      – SubjectFull: Structural design
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      – SubjectFull: Sustainability
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      – SubjectFull: Computer simulation
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      – TitleFull: Behavior of Composite Beams Using Lightweight Concrete Slabs Reinforced With GFRP Bars.
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              M: 03
              Text: 3/26/2026
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              Y: 2026
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