Experimental analysis of the mechanical behavior of steel storage rack base plate upright connections

IF 5.7 1区工程技术 Q1 ENGINEERING, CIVIL

Thin-Walled Structures Pub Date : 2025-04-28 DOI:10.1016/j.tws.2025.113340

Marina Naomi Furukawa, Maximiliano Malite

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Abstract

Steel storage racks, typically composed of cold-formed steel profiles, are among the most widely used solutions in the storage industry, offering significant economic and operational advantages. Despite their critical role in frame stability, current rack design specifications lack clear guidelines for considering the influence of semi-rigid base plate upright connections. While standard design recommendations require experimental testing to determine base plate stiffness and strength, several aspects of the standardized test methods require clarification, as they may, in some cases, lead to inaccurate results. This study presents an experimental investigation into the mechanical behavior of steel storage rack base plate upright connections. First, an alternative experimental arrangement is proposed to address limitations in existing standardized methods. Experimental results from eight base plate assemblies under flexural compression forces are analyzed, considering four different axial compression loads. The findings reveal inconsistencies in standardized test specifications and demonstrate the feasibility of the proposed alternative experimental set-up. Results also indicate that axial compression loads significantly affect the stiffness and moment capacity of rack base plate upright connections, with moment-rotation curves confirming their semi-rigid behavior.

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钢储物架底板直立连接力学性能试验分析

钢货架通常由冷弯型钢型材组成，是存储行业中应用最广泛的解决方案之一，具有显著的经济和运营优势。尽管它们在框架稳定性中起着至关重要的作用，但目前的机架设计规范缺乏考虑半刚性底板直立连接影响的明确指导。虽然标准设计建议要求进行实验测试以确定底板的刚度和强度，但标准化测试方法的几个方面需要澄清，因为它们在某些情况下可能导致不准确的结果。本文对钢储物架底板直立连接的力学性能进行了试验研究。首先，提出了一种替代实验安排，以解决现有标准化方法的局限性。考虑4种不同的轴向压缩载荷，分析了8个底板组合在弯曲压缩力作用下的试验结果。研究结果揭示了标准化测试规范的不一致性，并证明了提出的替代实验设置的可行性。结果还表明，轴压载荷显著影响机架底板直立连接的刚度和弯矩能力，弯矩-旋转曲线证实了其半刚性行为。

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来源期刊

Thin-Walled Structures 工程技术-工程：土木

CiteScore

9.60

自引率

20.30%

发文量

801

审稿时长

66 days

期刊介绍： Thin-walled structures comprises an important and growing proportion of engineering construction with areas of application becoming increasingly diverse, ranging from aircraft, bridges, ships and oil rigs to storage vessels, industrial buildings and warehouses. Many factors, including cost and weight economy, new materials and processes and the growth of powerful methods of analysis have contributed to this growth, and led to the need for a journal which concentrates specifically on structures in which problems arise due to the thinness of the walls. This field includes cold– formed sections, plate and shell structures, reinforced plastics structures and aluminium structures, and is of importance in many branches of engineering. The primary criterion for consideration of papers in Thin–Walled Structures is that they must be concerned with thin–walled structures or the basic problems inherent in thin–walled structures. Provided this criterion is satisfied no restriction is placed on the type of construction, material or field of application. Papers on theory, experiment, design, etc., are published and it is expected that many papers will contain aspects of all three.