대한건축학회논문집 (Journal of the Architectural Institute of Korea)

  • 제38권8호
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  • Pages.247-254
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  • 2022
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  • 2733-6239(pISSN)
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  • 2733-6247(eISSN)
대한건축학회 (Architectural Institute of Korea)
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프리캐스트 콘크리트 열메타 판넬의 휨 거동 평가

Evaluation on Flexural Response of Precast Concrete Thermal-meta Panels

  • 투고 : 2022.05.31
  • 심사 : 2022.07.13
  • 발행 : 2022.08.30
⟨ 이전 논문 다음 논문 ⟩

초록

This study examined the flexural response of thermal-meta precast concrete panels developed for high-insulation and nonflammable exterior building materials as an alternative of the conventional sandwich panels. The main parameters investigated were the connection type at the panel-to-base interface and span continuity. The conventional splice sleeve method and welding connection were considered at the panel-to-base interface for each one- and two-span panels. The panel section was composed of top and bottom concrete layers and inner thermal-meta layer using honeycomb paper, producing the overall depth of 350 mm. The top and bottom concrete layers were reinforced using deformed bars with a diameter of 10 mm. Test results showed that the investigated panel-to-base interface can be considered as fixed-end condition from the crack distribution and comparisons between experiments and predictions for the initial flexural crack strength and the ultimate flexural strength. The displacement ductility ratio of panel specimens satisfied the design requirements derived from seismic design provision of KBC 2016. Overall, the developed precast concrete thermal-meta panels exhibited a good flexural resistance and ductility, achieving the grade one for strength classification specified in KS F 4736.

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과제정보

이 논문은 2021학년도 경기대학교 연구년 수혜로 연구되었음.

참고문헌

  1. AIK (2016). Korean Building Code 2016(KBC 2016) and Commentary. Seoul, Korea; Kimoondang Publishing Company, Architectural Institute of Korea (AIK).
  2. Ji, G. B., Mun, J. H., & Yang, K. H. (2019). Evaluation of Mechanical Properties of Lightweight Concrete Using Bottom Ash Aggregates and Foam. Journal of the Korea Concrete Institute, 31(4), 375-384. (In Korean) https://doi.org/10.4334/JKCI.2019.31.4.375
  3. KATS (2018). Extrusion lightweight concrete panels (KS F 4736). Seoul, Korea: Korea Agency for Technology and Standards (KATS), Korea Standard Association (KSA), 1-6. (In Korean)
  4. KATS (2020). Concrete aggregate (KS F 2527). Seoul, Korea: Korea Agency for Technology and Standards (KATS), Korea Standard Association (KSA), 1-9. (In Korean)
  5. KATS (2021). Steel bars for concrete reinforcement (KS D 3504). Seoul, Korea: Korea Agency for Technology and Standards (KATS), Korea Standard Association (KSA), 1-10. (In Korean)
  6. Kim, J. T., Choi, W. H., Chung, C. W., & Lee, J. Y. (2016). Effect of Waste Glass Wool on Mechanical Properties of Concrete. The Korea Institute of Building Construction, 16(2), 117-123. (In Korean) https://doi.org/10.5345/JKIBC.2016.16.2.117
  7. Kim, J. W., Yang, K. H., & Mun, J. H. (2021). Evaluation on Mechanical Properties and Thermal Resistance of Lightweight Concrete Using Bottom Ash Aggregates and Expanded Polystyrene Bead. Journal of the Korea Concrete Institute, 33(6), 569-577. (In Korean) https://doi.org/10.4334/JKCI.2021.33.6.569
  8. Moon, J. W., & Chae, C. U. (2021). A Study on the Flame Retardation of Polystyrene Foam (EPS) in Sandwich Panels. Journal of the Architectural Institute of Korea, 37(1), 211-218. (In Korean) https://doi.org/10.5659/JAIK.2021.37.1.211
  9. Yang, K. H. (2020). Development of Sustainable Thermal-Meta PC panel with Heat Transmission Coefficient of 0.21 W/m2·K. Technical Report, Ministry of Land, Infrastructure and Transport, Infrastructure Technology Advancement.