Structural Engineering and Mechanics

  • 제45권4호
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  • Pages.455-470
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  • 2013
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Reshoring effects on deflections of multi-shored flat plate systems under construction

  • Kang, Su-Min (Technology Research Institute, Daelim Industrial Co.) ;
  • Eom, Tae-Sung (Department of Architecture, Catholic University of Daegu) ;
  • Kim, Jae-Yo (Department of Architectural Engineering, Kwangwoon University)
  • 투고 : 2011.05.10
  • 심사 : 2013.01.06
  • 발행 : 2013.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

RC flat plates that have no flexural stiffness by boundary beams may be governed by a serviceability as well as a strength condition. A construction sequence and its impact on the distributions of construction loads among slabs tied by shores are decisive factors influencing immediate and long term performances of flat plate. Over-loading and tensile cracking in early-aged slabs significantly increase the deflection of a flat plate system under construction. A reshoring work may be helpful in reducing slab deflections by controlling the vertical distributions of construction loads in a multi-shored flat plate system. In this study, a change of construction loads by reshoring works and its effects on deflections of flat plate systems under construction are analyzed. The slab construction loads with various reshoring schemes are defined by a simplified method, and the practical calculation of slab deflections with considering construction sequences and concrete cracking effects is applied. From parametric studies, the reshoring works are verified to reduce construction loads and slab deflections.

키워드

참고문헌

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피인용 문헌

  1. Safety and Serviceability of Reinforced Concrete Beam-Column Joints Supported by Shores and Reshores during Construction vol.142, pp.7, 2016, https://doi.org/10.1061/(ASCE)ST.1943-541X.0001494
  2. Evaluation of Construction Loads of Slabs and Shores with Removing Shores and Placing Reshores vol.26, pp.3, 2014, https://doi.org/10.4334/JKCI.2014.26.3.385
  3. 플랫 플레이트 구조의 장단기 처짐 제어에 대한 동바리 재설치 작업의 효과 분석 vol.21, pp.1, 2017, https://doi.org/10.11112/jksmi.2017.21.1.040
  4. Simulations of short- and long-term deflections of flat plates considering effects of construction sequences vol.62, pp.4, 2013, https://doi.org/10.12989/sem.2017.62.4.477
  5. 플랫 플레이트의 장단기 처짐에 대한 중공 슬래브의 자중저감 효과 분석 vol.30, pp.4, 2013, https://doi.org/10.7734/coseik.2017.30.4.343
  6. Short- and long-term deflections of RC building structures influenced by construction processes vol.64, pp.2, 2017, https://doi.org/10.12989/sem.2017.64.2.173
  7. Unified equivalent frame method for post-tensioned flat plate slab structures vol.20, pp.6, 2013, https://doi.org/10.12989/cac.2017.20.6.663
  8. Load transmission between slabs and shores during the construction of RC building structures – A review vol.173, pp.None, 2013, https://doi.org/10.1016/j.engstruct.2018.07.046