Structural Engineering and Mechanics

  • 제7권3호
  • /
  • Pages.319-330
  • /
  • 1999
  • /
  • 1225-4568(pISSN)
  • /
  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Design of top concrete slabs of composite space trusses

  • 발행 : 1999.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

The design of composite space trusses is a demanding task that involves taking several decisions on the truss depth, number of panels, member configuration, number of chord layers and concrete slab thickness and grade. The focus in this paper is on the design of top concrete slabs of composite space trusses, and in particular their thickness. Several effects must be considered in the process of designing the slab before an optimum thickness can be chosen. These effects include the inplane forces arising from shear interaction with the steel sub-truss and the flexural. and sheer effects of direct lateral slab loading. They also include a constructional consideration that the thickness must allow for sufficient cover and adequate space for placing the reinforcement. The work presented in this paper shows that the structural requirements on the concrete slab thickness are in many cases insignificant compared with the constructional requirements.

키워드

참고문헌

  1. Ashraf, M., Javied, M.A.and Ali, Z. (1993), "Composite double-layer bridge grids", Fourth International Conference on Space Structures, Surrey, UK, 1518-1525.
  2. British Standard, BS8110, Part 1, (1985), Structural Use of Concrete - Code of Practice for Design and Construction, British Standard Institute, UK.
  3. Castillo, H. (1967), "A space frame construction with steel and reinforced concrete, the Tridilosa spatial structure", in: Davies, RM. (ed.) Space Structures, Blackwell, Oxford, 1089-1093.
  4. EI-Sheikh, A.I. and McConnel, R.E. (1991), "Experimental study of non-composite and composite space trusses", Technical Report CUED/D Struct/TR137, Cambridge University, UK.
  5. EI-Sheikh A.I. and McConnel, R.E. (1993), "Experimental study of behaviour of composite space trusses", Journal of Structural Division, ASCE, 119(3), 747-766. https://doi.org/10.1061/(ASCE)0733-9445(1993)119:3(747)
  6. EI-Sheikh, A.I. (1996a), "Effect of composite action on space truss behaviour: Overview", International Journal of Structures, 16(2), 1-22.
  7. EI-Sheikh, A.I. (1996b), "Approximate analysis of space trusses", International Journal of Space Structures, 11(3), 321-330. https://doi.org/10.1177/026635119601100304
  8. Schmidt, L.C., Morgan, P.R., O'Meagher, A.J. and Cogan, K. (1980), "Ultimate load behaviour of a full-scale space truss" , Proceedings of Institution of Civil Engineers, 69(2), 97-109. https://doi.org/10.1680/iicep.1980.2489
  9. Schmidt, L.C., Morgan, P.R. and Hanaor, A. (1982), "Ultimate load testing of space trusses", Journal of Structural Division, ASCE, 108(6), 1324-1335.
  10. Schodek, D.L. (1980), Structures, Prentice-Hall, Jersey, USA.
  11. Scottish Office, Scottish Development Department (1984), The Assessment of Highway Bridges and Structures, Technical Memorandum SB3/84.
  12. Young, W.C. (1989), Roark's Formulas for Stress & Strain, McGraw-Hill, London.

피인용 문헌

  1. Parametric Studies on the Behavior of Steel and Composite Space Structures vol.25, pp.3, 2010, https://doi.org/10.1260/0266-3511.25.3.169