考虑土-结构相互作用的带限位装置的基底隔震钢制液体储罐的抗震性能评估

IF 1.1 Q3 ENGINEERING, CIVIL

Archives of Civil Engineering Pub Date : 2023-12-21 DOI:10.24425/ace.2023.147681

Wei Jing, Shuang Tian

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引用次数: 0

摘要

:液体储罐广泛应用于石油化工行业，地震会导致结构破坏和次生灾害，减震控制为液体储罐的抗震设计开辟了新途径。考虑土-结构-流体相互作用、液体滑动动力行为和材料非线性等因素，结合滑动隔震和位移限制装置，建立了减震液体储罐的三维计算模型。研究了液体储罐在 Kobe 波和 El-Centro 波作用下的动态响应，并讨论了土-结构相互作用（SSI）对动态响应的影响。结果表明，阻尼比基本上在 30% 到 90% 之间。考虑 SSI 后，液体滑动波高的阻尼比增大，而储液罐动态响应的阻尼比减小，弹性模量的变化对阻尼效果影响不大。带位移限制装置的滑动隔离对液体滑动波高度和储液罐的动态响应具有显著的阻尼控制效果。

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Seismic performance evaluation of a base-isolated steel liquid storage tank with limiting-devices considering soil-structure interaction

: Liquid storage tank is widely used in the petrochemical industry, earthquake will lead to structural damage and secondary disasters, and damping control opens up a new way for seismic design of liquid storage tank. Considering soil-structure-ﬂuid interaction, liquid sloshing dynamic behavior and material nonlinearity, a three-dimensional calculation model of shock absorption liquid storage tank is established by combining sliding isolation and displacement-limiting devices. The dynamic responses of the liquid storage tanks under the action of Kobe and El-Centro waves are investigated, and the inﬂuence of soil-structure interaction (SSI) on the dynamic response is discussed. The results show that the damping ratio is basically between 30% and 90%. After the SSI is considered, the damping ratio of liquid sloshing wave height is increased, while the damping ratio of the dynamic response of the liquid storage tank is decreased, and the change of elastic modulus has little eﬀect on the damping eﬀect. The sliding isolation with displacement-limiting devices has signiﬁcant damping control eﬀects on the liquid sloshing wave height and the dynamic responses of the liquid storage tank.

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来源期刊

Archives of Civil Engineering ENGINEERING, CIVIL-

CiteScore

1.50

自引率

28.60%

发文量

审稿时长

24 weeks

期刊介绍： ARCHIVES OF CIVIL ENGINEERING publish original papers of the theoretical, experimental, numerical and practical nature in the fields of structural mechanics, soil mechanics and foundations engineering, concrete, metal, timber and composite polymer structures, hydrotechnical structures, roads, railways and bridges, building services, building physics, management in construction, production of construction materials, construction of civil engineering structures, education of civil engineers.