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ISSN : 1226-525X(Print)
ISSN : 2234-1099(Online)
Journal of the Earthquake Engineering Society of Korea Vol.30 No.1 pp.39-46
DOI : https://doi.org/10.5000/EESK.2026.30.1.039

Experimental and Numerical Investigation on the Structural and Thermal Performance of the Thermal Break Insulation System for Balcony

An Hyoseo1), Lee Jiyoung1), Yoo Youngjong2), An Sanghee3), Kim Hyunggeun4), Lee Kihak5)*
1)Researcher, Deep Learning Architecture Research Center, Department of Architectural Engineering, Sejong University, 2)Laboratory Chief, Jeong Yang SG Co., 3)Principal Investigator, Jeong Yang SG Co., 4)Chief Executive Officer, Thepick R&D Co., Ltd., 5)Professor, Deep Learning Architecture Research Center, Department of Architectural Engineering, Sejong University

Abstract

In conventional construction methods, the slab-balcony junction often experiences thermal bridging. This phenomenon arises from the discontinuity of insulation materials, leading to energy loss and condensation that can compromise the structure's usability and durability. To address this issue, thermal break insulation systems were installed between the slab and balcony to effectively prevent thermal bridging and energy loss, thereby improving the overall energy efficiency of buildings. This study aims to enhance both the structural performance and thermal efficiency of slab-balcony connections in residential buildings. To assess the impact of the thermal break insulation system, two experimental specimens were prepared: one incorporating the system and the other without it. Experimental results confirmed that the inclusion of reinforcing bars significantly improved the connection's structural load-bearing capacity. Furthermore, thermal analysis revealed that the thermal break insulation system outperformed conventional insulation methods by reducing the thermal damage ratio and maintaining higher surface temperatures at the connection. In addition, a structural analysis using an FEM (finite element analysis) program was conducted to evaluate the load distribution across the specimens, demonstrating that the experimental data accurately predicted the structural behavior of the connections.

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    Reference

    Journal Abbreviation J. Earthq. Eng. Soc. Korea
    Frequency Bimonthly
    Doi Prefix 10.5000/EESK
    Year of Launching 1997
    Publisher Earthquake Engineering Society of Korea
    Indexed/Tracked/Covered By