Seismic design of pallet racking systems
DOI:
https://doi.org/10.5459/bnzsee.16.4.291-305Abstract
Modern industrial pallet racking systems in use in New Zealand are adaptions of overseas design, using thin walled cold formed sections. These sections are not generally considered suitable for plastic deformations, or resistance to seismically induced loadings. This paper reviews full scale shaking table tests reported by Rack Manufacturers Institute, Pittsburg, (R.M.I.) in 1980, and comments on the applicability of the results to the seismic design philosophy embodied in NZS 4203. Seismic performance criteria (not strictly the same as for building structures) are proposed, and design approaches suggested that will enable the capacity design requirements of NZS 4203 to be considered, while keeping with the cold formed sections traditionally used for pallet rack construction.
References
"Specification for Design, Testing and Utilisation of Industrial Steel Storage Racks". Rack Manufacturers Institute, Pittsburg, USA (May 1980). Adopted with minor amendments as Ref. 14.
"Code of Practice for Design of Static Racking". Storage Equipment Manufacturers Association (SEMA),London. (1980).
NZS 4203: "Code of Practise for General Structural Design and Design Loadings for Buildings". SANZ (1976, including Amendments No. 1, 2).
"Seismic Study of Industrial Steel Storage Racks" C.K. Chen, R.E. Scholl, and J.A. Blume (URS/John A Blume and Associates, Engineers, San Francisco for National Science Foundation/ Rack Manufacturers Institute), 477p. June 1980.
Applied Technology Council: "Tentative Provisions for Development of Seismic Regulations for Buildings" (Publication ATC 3-06). California. June 1978.
"Commentary on Chapter 8 of NZS 1900" NZ Standards Institute (now SANZ). Miscellaneous Publication MP 12:1965. Dec. 1965.
"Seismic Risk and Design Criteria". A.V. Hatrick. Bull, NZ Society for Earthquake Engineering Vol. 13 No. 1 March 1980. (pp 14-21). DOI: https://doi.org/10.5459/bnzsee.13.1.14-21
"Elastic Response "S" Factors". Private Communication, RX. Cooney (17.11.81). Reference "Fundamentals of Earthquake Engineering", N.M. Newmark, E. Rosenblueth (Prentice Hall 1971) Table 9.1.
"Seismic Response of Structures Free to Rock on their Foundations" M.J.N. Priestley, R.J. Evison, A.J. Carr. Bull. N.Z. Society for Earthquake Engineering Vol. 11 No. 3 Sept. 1978 (pp 141-150). DOI: https://doi.org/10.5459/bnzsee.11.3.141-150
"Recommendations for the Design and Construction of Base Isolated Structures". R.W.G. Blakeley, A.W. Charleson, H.C. Hitchcock, L.M. Megget, M.J.N. Priestley, R.D. Sharpe, R.I. Skinner. Bull. N.Z. Society for Earthquake Engineering Vol. 12 No. 2 June 1979, pp. 136-157. DOI: https://doi.org/10.5459/bnzsee.12.2.136-157
NZS 3404:1981, "Steel Structures Code" (incorporating AS 1250:1981). SANZ, Wellington.
AS 1538:19 74 "SAA Cold Formed Steel Structures Code" ASA, (based on 1968 Edition Ref. 13).
"Specification for the Design of Cold Formed Steel Structural Members". American Iron and Steel. Institute (AISI) Sept. 1980.
ANSI: MH 16.1 - 1974 "American National Standard Specification for Design Testing, and Utilisation of Industrial Steel Storage Racks" (New York, 1974).
