Observed performance of industrial pallet rack storage systems in the Canterbury earthquakes

Uma, S.R.; Beattie, Graeme

doi:10.5459/bnzsee.44.4.388-393

Cited by 9 publications

(8 citation statements)

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“…It appeared that the semi-rigid beam to column connections in the longitudinal direction were too weak for the intensity of shaking and design gravity loads. See also (Uma and Beattie, 2011). Anecdotally, in another facility, existing racks had been retrofitted by coupling two racks back-to-back with flat bar braces ( Figure 16).…”

Section: Industrial and Educational Facilitiesmentioning

confidence: 99%

Steel structures damage from the Christchurch earthquake series of 2010 and 2011

Clifton

Bruneau

MacRae

et al. 2011

BNZSEE

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This paper presents preliminary field observations on the performance of selected steel structures in Christchurch during the earthquake series of 2010 to 2011. This comprises 6 damaging earthquakes, on 4 September and 26 December 2010, February 22, June 6 and two on June 13, 2011. Most notable of these was the 4 September event, at Ms7.1 and MM7 (MM as observed in the Christchurch CBD) and most intense was the 22 February event at Ms6.3 and MM9-10 within the CBD. Focus is on performance of concentrically braced frames, eccentrically braced frames, moment resisting frames and industrial storage racks. With a few notable exceptions, steel structures performed well during this earthquake series, to the extent that inelastic deformations were less than what would have been expected given the severity of the recorded strong motions. Some hypotheses are formulated to explain this satisfactory performance.

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Section: Industrial and Educational Facilitiesmentioning

confidence: 99%

Steel structures damage from the Christchurch earthquake series of 2010 and 2011

Clifton

Bruneau

MacRae

et al. 2011

BNZSEE

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“…In down-aisle direction, the common damage presented by Uma and Beattie (2011) is the failure mood of the beam connector element. The connector is the component of beam transferring the beam moment.…”

Section: Research On Steel Storage Racking Connection Behavior Duringmentioning

confidence: 99%

Behavior of steel storage pallet racking connection - A review

Chen¹,

Shi²,

Shariati³

et al. 2019

Preprint

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Steel pallet racking industry has globally used from the industrial revolution and has deeply evolved from hot-rolled profile into cold-formed profile to raise the optimization in engineering field. Nowadays, some studies regarding cold-formed steel profile have been performed, but fewer studies in terms of cold-formed pallet racking specifically in connection due to the semi-rigid behavior by lug-hooked into the upright have been conducted. The objective of this study is to review the related literature on steel storage racking connection behavior.

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“…These structures are designed to be narrow perpendicular to the aisles, while they are longer in a parallel direction to them [3]. Industrial storage racks can reach heights that exceed 10 m with a high vertical load, reaching very large slendernesses -height/width ratio- [9]. All of the above leads to the racks being vulnerable to seismic action, as well as their content [10,11], being a risk for people who regularly walk near them [12].…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on Seismic Response of Steel Storage Racks with Roller Type Isolator

Álvarez

Maureira-Carsalade

Núñez

et al. 2021

Metals

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This research evaluates the effectiveness of using a roller-type base isolation device with tensile strength in reducing the dynamic response of industrial steel storage racks. These were subjected to a seismic input acting separately in both directions of the structure. The seismic record obtained from the earthquake that occurred in Llolleo, Chile, on 3 March 1985, was used as input. This earthquake was scaled in the frequency domain, adjusting its response spectrum to coincide with the design spectrum required by NCh2745. In the calculations of this spectrum, the most hazardous seismic zone (zone 3) and soft soil (soil III) that amplifies the effect of the low frequencies of the earthquake were considered. These frequencies are the ones that have the most affect on flexible structures such as high racks and systems with base isolation. Numerical time-history analyses were performed in fixed base racks and base isolation racks. In both cases, the models include semi-rigid connections with capacity for plastic deformation and energy dissipation. Parametric analyses were carried out considering the most relevant variables, using an algorithm programmed in MATLAB software. The maximum relative displacement, maximum basal shear load, and maximum absolute floor acceleration were considered as responses of interest. The results showed the effectiveness of using the base isolation device by reducing the absolute accelerations between approximately 75% and 90%, compared to the same fixed rack at its base. This makes it possible to reduce the vulnerability of the stored load to overturn under the action of a severe earthquake.

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Observed performance of industrial pallet rack storage systems in the Canterbury earthquakes

Cited by 9 publications

References 0 publications

Steel structures damage from the Christchurch earthquake series of 2010 and 2011

Steel structures damage from the Christchurch earthquake series of 2010 and 2011

Behavior of steel storage pallet racking connection - A review

Numerical Study on Seismic Response of Steel Storage Racks with Roller Type Isolator

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