DOI QR코드

DOI QR Code

Flexural Behavior Analysis of Prestressed Half PC Slab by Full Scale Load Test

실물재하실험을 통한 프리스트레스트 Half PC 슬래브의 휨 거동 분석

  • Received : 2020.11.03
  • Accepted : 2020.12.14
  • Published : 2020.12.30

Abstract

The purpose of this study is to analyze the flexural behavior of prestressed half PC slab. For this purpose, construction load tests of pre-composite PC slabs and the flexural performance tests of composite PC slabs were conducted. The specimens were constructed in full scale size and bundled rebar were used for full scale load test. Construction load test was conducted over a full span using bundled bars and the flexural performance test was conducted by 4 points loading test. As a result of construction load test, it was confirmed that the deflection-span ratio is lower than the current structural design standard (KBC2016). Therefore, it was expected that construction will be possible without any support. The results of the flexural performance test showed that the maximum allowable deflection was satisfied under the service load and design load. In addition, no stiffness degradation was appeared until the time of the nominal flexural strength. Therefore, all of the test specimens in this study were considered that composite PC slab strength were higher than nominal flexural strength.

Keywords

Acknowledgement

이 연구는 2018년도 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구에 의한 결과의 일부입니다. (No. NRF-2018R1A2B6009483)

References

  1. ACI Committee 318 (2014). Building Code Requirements for Structural Concrete (ACI 318-14) and Commentary, American Concrete Institute, Farmington Hill, Mich, 83-85
  2. Architecture Institute of Korea (2016). Korean Building Code and Commentary, Kimoondang Publishing Company, Seoul, Korea, 400-401
  3. James K. Wight, & James G. MacGregor (2009). Reinforced Concrete Mechanics & Design, Pearson Education
  4. Jang, H. J., Ryu, J. H., Kim, S. M., Ju, Y. K., & Kim, S. D. (2012). An Evaluation of the Flexural Capacity of Void Slabs with Prestressed Half PC. Journal of the Architectural Institute of Korea Structure & Construction 28(2), 11-18. https://doi.org/10.5659/JAIK_SC.2012.28.2.11
  5. Korea Concrete Institute (2012). Concrete Design Code and Commentary, Kimoondang Publishing Company, Seoul, Korea, 85-87. (In Korean)
  6. KS F 2403 (2014). Standard test method for making and curing concrete specimens, Korean Agency for Technology and standards, 1-14. (In Korean)
  7. KS F 2405 (2010). Standard Test Method for Compressive Strength of Concrete, Korean Agency for Technology and Standards, 1-16. (In Korean)