Shake Table Testing of Standard Cold-Formed Steel Storage Rack

Full-scale shake table investigations are strongly required to understand the actual performance of storage racks and to improve the rack design guidelines. This paper presents the results of full-scale shake table tests on New Zealand standard storage rack frames with two-bay and two-level to deter...

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Main Authors: Ahmad Firouzianhaji, Nima Usefi, Bijan Samali, Peyman Mehrabi
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/11/4/1821
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author Ahmad Firouzianhaji
Nima Usefi
Bijan Samali
Peyman Mehrabi
author_facet Ahmad Firouzianhaji
Nima Usefi
Bijan Samali
Peyman Mehrabi
author_sort Ahmad Firouzianhaji
collection DOAJ
description Full-scale shake table investigations are strongly required to understand the actual performance of storage racks and to improve the rack design guidelines. This paper presents the results of full-scale shake table tests on New Zealand standard storage rack frames with two-bay and two-level to determine the dynamic characteristics of a standard rack structure and to measure the damping of the system. The experimental program was conducted in three phases. First, the identification parameters including the natural frequency and damping of the system were determined through a series of preliminary tests. Then, shake table tests were performed to capture the inelastic response of rack frames under low to medium intensities of El-Centro ground motion. Finally, the shake-table tests were repeated with scaling down the time domain and broader ranges of ground motion intensities to consider the performance of taller rack systems. In addition, a comprehensive discussion on the damping of the system is also provided based on the test results. The performance of the rack frame is described through an extensive set of measurements, including rack displacement, pallet sliding, the acceleration of a concrete block and rack frame and the damping of the system in the down-aisle direction. The results indicate that the standard rack frames are able to endure large inelastic deformations without loss of stability.
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spelling doaj.art-352c235cc397442caa4eb576070859ea2023-12-11T17:31:46ZengMDPI AGApplied Sciences2076-34172021-02-01114182110.3390/app11041821Shake Table Testing of Standard Cold-Formed Steel Storage RackAhmad Firouzianhaji0Nima Usefi1Bijan Samali2Peyman Mehrabi3Centre for Infrastructure Engineering, Western Sydney University, Sydney 2747, AustraliaCentre for Infrastructure Engineering, Western Sydney University, Sydney 2747, AustraliaCentre for Infrastructure Engineering, Western Sydney University, Sydney 2747, AustraliaDepartment of Civil Engineering, K.N. Toosi University of Technology, Tehran 15875-4416, IranFull-scale shake table investigations are strongly required to understand the actual performance of storage racks and to improve the rack design guidelines. This paper presents the results of full-scale shake table tests on New Zealand standard storage rack frames with two-bay and two-level to determine the dynamic characteristics of a standard rack structure and to measure the damping of the system. The experimental program was conducted in three phases. First, the identification parameters including the natural frequency and damping of the system were determined through a series of preliminary tests. Then, shake table tests were performed to capture the inelastic response of rack frames under low to medium intensities of El-Centro ground motion. Finally, the shake-table tests were repeated with scaling down the time domain and broader ranges of ground motion intensities to consider the performance of taller rack systems. In addition, a comprehensive discussion on the damping of the system is also provided based on the test results. The performance of the rack frame is described through an extensive set of measurements, including rack displacement, pallet sliding, the acceleration of a concrete block and rack frame and the damping of the system in the down-aisle direction. The results indicate that the standard rack frames are able to endure large inelastic deformations without loss of stability.https://www.mdpi.com/2076-3417/11/4/1821storage rackcold-formed steelshake tabledampingground motionearthquake
spellingShingle Ahmad Firouzianhaji
Nima Usefi
Bijan Samali
Peyman Mehrabi
Shake Table Testing of Standard Cold-Formed Steel Storage Rack
Applied Sciences
storage rack
cold-formed steel
shake table
damping
ground motion
earthquake
title Shake Table Testing of Standard Cold-Formed Steel Storage Rack
title_full Shake Table Testing of Standard Cold-Formed Steel Storage Rack
title_fullStr Shake Table Testing of Standard Cold-Formed Steel Storage Rack
title_full_unstemmed Shake Table Testing of Standard Cold-Formed Steel Storage Rack
title_short Shake Table Testing of Standard Cold-Formed Steel Storage Rack
title_sort shake table testing of standard cold formed steel storage rack
topic storage rack
cold-formed steel
shake table
damping
ground motion
earthquake
url https://www.mdpi.com/2076-3417/11/4/1821
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