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Smart Structures and Systems
  Volume 26, Number 1, July 2020, pages 103-115

Investigation on the monotonic behavior of the steel rack upright-beam column connection
Yan Cao, Rayed Alyousef, Kittisak Jermsittiparsert, Lanh Si Ho, Abdulaziz Alaskar, Hisham Alabduljabbar, Fahed Alrshoudi and Abdeliazim Mustafa Mohamed

    The cold-formed steel storage racks are extensively employed in various industries applications such as storing products in reliable places and storehouses before distribution to the market. Racking systems lose their stability under lateral loads, such as seismic actions due to the slenderness of elements and low ductility. This justifies a need for more investigation on methods to improve their behavior and increase their capacity to survive medium to severe loads. A standardized connection could be obtained through investigation on the moment resistance, value of original rotational stiffness, ductility, and failure mode of the connection. A total of six monotonic tests were carried out to determine the behavior of the connection of straight 2.0 mm, and 2.6 mm thickness connects to 5 lug end connectors. Then, the obtained results are benched mark as the original data. Furthermore, an extreme learning machine (ELM) technique has been employed to verify and predict both moment and rotation results. Out of 4 connections, increase the ultimate moment resistance of connection by 13% and 18% for 2.0 mm and 2.6 mm upright connection, respectively.
Key Words
    steel storage rack structures; upright; cyclic loading; moment-rotation
(1) Yan Cao:
School of Mechatronic Engineering, Xi'an Technological University, Xi'an, 710021 China;
(2) Rayed Alyousef, Hisham Alabduljabbar, Abdeliazim Mustafa Mohamed:
Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-kharj 11942, Saudi Arabia;
(3) Kittisak Jermsittiparsert:
Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam;
(4) Kittisak Jermsittiparsert:
Faculty of Social Sciences and Humanities, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam;
(5) Lanh Si Ho:
Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam;
(6) Abdulaziz Alaskar, Fahed Alrshoudi:
Department of Civil Engineering, College of Engineering, King Saud University, Riyadh 11362, Saudi Arabia.

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