考虑土-储罐-液体相互作用的隔震储罐简化力学模型及地震响应研究  

Simplified mechanical model and seismic response for isolation tankconsidering soil-tank-liquid interaction

作　　者：李想[1,2] 张书进 孙建刚[2,4] 王尊策 徐蕾[2] 崔利富 吕远 LI Xiang;ZHANG Shu-jin;SUN Jian-gang;WANG Zun-ce;XU Lei;CUI Li-fu;LÜYuan(School of Mechanical Science and Engineering,Northeast Petroleum University,Daqing 163318,China;College of Civil Engineering,Dalian Minzu University,Dalian 116650,China;Research Institute of Oil Production Engineering,Daqing Oilfield Limited,CNPC,Daqing 163453,China;School of Civil Engineering,Institute of Disaster Prevention,Beijing 101601,China;School of Civil and Environmental Engineering,Harbin Institute of Technology,Shenzhen 518055,China)

机构地区：[1]东北石油大学机械科学与工程学院,黑龙江大庆163318 [2]大连民族大学土木工程学院,辽宁大连116650 [3]中国石油大庆油田有限责任公司采油工程研究院,黑龙江大庆163453 [4]防灾科技学院土木工程学院,北京101601 [5]哈尔滨工业大学土木与环境工程学院,广东深圳518055

出　　处：《振动工程学报》2024年第3期436-447,共12页Journal of Vibration Engineering

基　　金：国家自然科学基金资助项目(52178461,51878124,51478090);广东省重点领域研发计划项目(2019B111102001)。

摘　　要：为了寻求一种既能减震又能降低成本的储罐结构,提出一种隔震储罐结构体系,根据力的平衡原则推导了滚动隔震装置恢复力模型,得出了复合滚动隔震装置的恢复力模型。基于三质点模型和场地土模型,提出了考虑土-储罐-液体相互作用(STLI)的隔震储罐的简化力学模型和运动方程,并研究了考虑STLI效应和不考虑STLI效应时抗震储罐和隔震储罐在不同场地的地震响应。结果表明:隔震储罐能够有效地降低其基底剪力及倾覆弯矩,但对晃动波高的控制有限,建议在高烈度区,满足晃动波高的前提下,隔震储罐在设计时可以降低烈度。考虑STLI效应后,抗震储罐的基底剪力和倾覆弯矩明显降低,且从Ⅰ类场地到Ⅳ类场地差异率逐渐增大,软土场地降低最为显著。隔震储罐地震响应受STLI效应的影响较小,可以有效地隔断上部结构与场地土之间的耦联,弱化STLI效应对上部结构的影响。In order to seek a kind of tank structure which can absorb shock and reduce costs,a new structure system of isolation tank is proposed.The restoring force model of rolling isolation is deduced by the principle of balances of forces,and the restoring force model of composite rolling isolation device is obtained.Based on the three-particle model and site soil model,the simplified mechanical model and motion equations of the new isolation tank considering soil-tank-liquid interaction(STLI)are proposed,and the seismic responses of seismic tank and new isolation tank that considered STLI and Non-STLI are studied under different sites.The results show that the new isolation tank can effectively reduce the base shear and overturning moment,but the control of the sloshing wave height is limited.It is suggested that in the high intensity area,under the premise of meeting the shaking wave height,the new isolation tank can be designed to reduce the intensity.After considering the STLI effect,the base shear and over-turning moment of seismic tank decrease obviously.The discrepancy rate gradually increases from classⅠsite to classⅣsite,and the decrease is most significant in soft soil.The seismic responses of the new isolation tank are less affected by the STLI,which can effectively cut off the coupling between the superstructure and the site soil,and weaken the influence of the STLI effect on the superstructure.

关 键 词：土-储罐-液体相互作用 隔震储罐 复合滚动隔震 简化力学模型 地震响应 

分 类 号：TU352.1[建筑科学—结构工程]