NEHRP Clearinghouse

Title
Seismic Study of Industrial Steel Storage Racks.
File
PB81142101.pdf
Author(s)
Chen, C. K.; Scholl, R. E.; Blume, J. A.
Source
National Science Foundation, Washington, DC. Engineering and Applied Science., June 1980, 552 p.
Abstract
Development of criteria and procedures for the seismic design of industrial steel storage racks is reported. The investigation focused on mathematical models for predicting earthquake response of racks and obtaining experimental data to quantify limit behavior of racks under earthquake conditions. Methodology consisted of subjecting four types of full-scale storage racks to simulated earthquake motions. Full-scale static-cycle tests were performed on two types of racks and antilever and portal tests were conducted on several rack assemblies to obtain information on load deformation characteristics. Shaking table tests were performed to evaluate seismic response effects on different types of merchandise. Table test responses were compared with predicted results using linear and nonlinear mathematical models. Response spectrum and time-history analyses were performed, and simplified static code methods were studied and compared. In general, the racks performed well and predictably during the shaking tests. The ductility and energy dissipation capacity of the racks were much larger in longitudinal than in transverse direction. Responses predicted agreed well with experimental results. Seismic design criteria consistent with the philosophy of the Uniform Building Code were recommended.
Keywords
Seismic design; Earthquake resistant structures; Dynamic tests; Dynamic response; Earthquake engineering; Storage racks; Design criteria; Dynamic structural analysis