DOI QR코드

DOI QR Code

도넛형 중공슬래브의 휨 강도 및 휨 강성

Flexural Strength and Stiffness of Biaxial Hollow Slab with Donut Type Hollow Sphere

  • 정주홍 (한양대학교 대학원 건축공학과) ;
  • 최현기 (경남대학교 소방방재공학과) ;
  • 이승창 (삼성물산(주) 기반기술연구소) ;
  • 최창식 (한양대학교 건축공학과)
  • 투고 : 2011.10.06
  • 심사 : 2014.04.23
  • 발행 : 2014.05.30

초록

This paper presents the flexural capacities of biaxial hollow slabs with donut type hollow shapes. Recently, various types of slab systems which can reduce self-weight of slabs have been studied as the height and width of building structures increase. A biaxial hollow slab system is widely known as one of the effective system which can reduce self-weight of slab. A biaxial hollow slab has hollow spheres within slabs in order to reduce self-weight of slabs. The capacities of biaxial hollow slab are influenced by the shapes, volume of hollow spheres. According to analytical studies, the hollow slab with donut type hollow sphere had good flexural capacities such as strength, stiffness and deflection. To verify the flexural capacities of this hollow slab such as strength and stiffness, flexural tests were performed. Three test specimens were planned to verify the effect of test parameters. One was conventional RC slab and others were donut type hollow slabs. The donut type hollow slabs have two different fixing methods of plastic balls. The one is used diagonal steel cage and the other is fixed with only its geometrical shapes without additional steel cage.

키워드

참고문헌

  1. Aldejohann, M., Schnellenbach-Held(2003), M Investigations on the Shear Capacity of Biaxial Hollow Slabs - Test Results and Evaluation, Darmstadt Concrete V. 18.
  2. 정주홍, 안남규, 최현기, 최장식, "중공슬래브의 최적 중공형성체 도출을 위한 해석적 연구", 구조물 진단학회 봄 학술발표대회, 2009, p.p.159-162
  3. 정주홍, 최현기, 이승창, 오정근, 최창식, "중공형성체가 이방 향 중공 슬래브에 미치는 영향에 관한 해석적 연구", 대한건축학회 가을학술 발표대회, 2009, p.p. 475-478
  4. E. M. Eigelaar, Deflections of Reinforced Concrete Flat Slabs, Stellenbosch University, Masters thesis, 2010, p.p. 78-81