无支撑工业钢制托盘货架的抗震脆性

IF 5.7 1区工程技术 Q1 ENGINEERING, CIVIL

Structural Safety Pub Date : 2024-06-22 DOI:10.1016/j.strusafe.2024.102497

Marco Donà , Giacomo Piredda , Alberto Zonta , Enrico Bernardi , Francesca da Porto

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引用次数: 0

摘要

过去的意大利地震表明，仅为重力荷载设计的钢制托盘货架在地震中非常脆弱，而这种货架仍是最普遍的工业存储系统。本研究旨在推导出这些结构的地震易损性，以便对企业风险进行更精确的估算，并确定有效的改造方案。为此，研究人员在 268 次双向事件（代表意大利地震）下，对 27 个无支撑托盘货架的三维非线性模型进行了时史分析。然后，根据各种工程需求参数和地震烈度措施，通过云方法得出了多种脆性模型。

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Seismic fragility of unbraced industrial steel pallet racks

Past Italian earthquakes revealed the high seismic vulnerability of steel pallet racks designed for gravity loads only, which are still the most widespread industrial storage system. This study aims to derive the seismic fragility of these structures to enable more refined estimates of enterprise risk and the definition of effective retrofit solutions. For this purpose, 3D non-linear models of 27 unbraced pallet racks, representative of the Italian context, were analysed in Time-History under 268 bidirectional events, representative of Italian seismicity. Multiple fragility models were then derived, based on various engineering demand parameters and seismic intensity measures, through a cloud approach.

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来源期刊

Structural Safety 工程技术-工程：土木

CiteScore

11.30

自引率

8.60%

发文量

审稿时长

53 days

期刊介绍： Structural Safety is an international journal devoted to integrated risk assessment for a wide range of constructed facilities such as buildings, bridges, earth structures, offshore facilities, dams, lifelines and nuclear structural systems. Its purpose is to foster communication about risk and reliability among technical disciplines involved in design and construction, and to enhance the use of risk management in the constructed environment