Application of Seismic Isolation Bearings for Rack Warehouse to Prevent Goods Falling

Takeuchi, Tōru; Yoshida, Michiyasu; Uchida, Masakaze; Nishi, Osamu; Matsui, Ryota

doi:10.3130/aijs.81.629

Cited by 5 publications

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some countermeasures have been proposed, that use damping joint for warehouse columns [1] [2], mass damper [3] [4], or a seismic isolation system [5] [6]. The countermeasures using the damping joint or seismic isolation system were especially developed for newly built automated warehouses, but not for the existing ones.…”

Section: Introductionmentioning

confidence: 99%

Development of post-installed mass damper for automated warehouse

Yasukawa

Takaki

Kitamura

et al. 2017

IABSE Symposium, Vancouver 2017: Engineering the Future

View full text Add to dashboard Cite

A vibration control system for an automated warehouse was developed that can be applied to existing warehouses as well as newly built ones. The device used for this system is the "postinstalled mass damper" that can be post installed on the cargo storage space in an automated warehouse. This damper has a large mass that causes a sustainable effect of reducing the response across a wide range of natural frequencies of an automated warehouse, which vary depending on the number of stacked cargoes and their weight. The results of the shaking table test demonstrated that the fall of cargoes by the earthquake ground motion could be prevented by using this damper because the accelerations of the rack were reduced to 50%-70%. Moreover, this effect was confirmed by the analysis conducted with the proposed model. The acceleration of the rack top was reduced to 80% and the maximum slip displacement of the cargoes was reduced to 25%.

show abstract

Section: Introductionmentioning

confidence: 99%

Development of post-installed mass damper for automated warehouse

Yasukawa

Takaki

Kitamura

et al. 2017

IABSE Symposium, Vancouver 2017: Engineering the Future

View full text Add to dashboard Cite

show abstract

On the seismic design and behavior of Automated Rack Supported Warehouses

Natali

Morelli

Salvatore

2022

Bull Earthquake Eng

View full text Add to dashboard Cite

Automated Rack Supported Warehouses (ARSWs), consisting in huge steel buildings offering optimized storage solutions, have been facing a huge diffusion in the last decade, mainly due to the necessity of having bigger and more efficient places to stock and handle goods through automated systems. However, there is not a specific regulatory framework for them, and they are currently being designed adopting the approach used for traditional steel racks. Even if traditional steel racks and ARSWs have several common aspects, there are relevant differences that do not allow to adopt the same design approach, especially for seismic actions. With the aim of highlighting the factors and parameters currently influencing the seismic design and the behaviour of these constructions, and the consequent need of a different design approach, the present paper presents a critical analysis of the seismic design approach currently adopted by technicians and designers. Then, a set of 5 structures designed by 5 of the major European companies specialized in this field is used to perform both the critical analysis of the different design approaches adopted and the assessment of the seismic performance. The results of the seismic assessment highlight the main typical criticalities and the necessity of a novel proper design approach.

show abstract