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Inner and outer tank separation type LNG liquid storage tank shock insulation system and construction method thereof
The invention provides an inner and outer tank separation type LNG liquid storage tank shock insulation system and a construction method thereof, and aims to eliminate the adverse effect of the outer tank swing effect on an inner tank under the earthquake action. The inner and outer tank separation type LNG liquid storage tank shock insulation system comprises an inner tank bearing platform, an outer tank bearing platform, friction pendulum supports, a heat insulation sealing ring and pile foundations, wherein a certain gap is reserved between the inner tank bearing platform and the outer tank bearing platform, a heat insulation sealing material is filled, friction pendulum seismic mitigation and isolation supports are fixedly connected with the lower bottom face of the outer tank bearing platform and the top faces of the pile foundations, and the friction pendulum supports are fixedly connected with the lower bottom face of the inner tank bearing platform and the top faces of the pile foundationss. According to the system, on the basis of the full-capacity LNG liquid storage tank, rigid connection between an inner tank and an outer tank is omitted, so that the adverse effect of the swinging effect of the outer tank on the inner tank under the earthquake action is eliminated; and the friction pendulum shock absorption and isolation supports are adopted for carrying out shock isolation design on the outer tank, the supports can bear pulling force generated by the swinging effect of the tank body, horizontal two-way shock absorption and isolation can be achieved, the friction pendulum supports are adopted for carrying out shock isolation design on the inner tank, and the dynamic response of the tank body of the inner tank and stored liquid can be effectively reduced.
本发明提出一种内外罐分离式LNG储液罐隔震体系及其施工方法，以消除地震作用下外罐摇摆效应对内罐产生的不利影响，包括内罐承台、外罐承台、摩擦摆支座、绝热密封圈和桩基，内罐承台和外罐承台之间留一定间隙，填充绝热密封材料，摩擦摆减隔震支座分别与外罐承台下底面和桩基顶面固定连接，摩擦摆支座分别与内罐承台下底面和桩基顶面固定连接。该发明在全容式LNG储液罐的基础上，取消内外罐之间的刚性连接，以消除地震作用下外罐摇摆效应对内罐的不利影响；采用摩擦摆减隔震支座对外罐进行隔震设计，该支座既能承担因罐体摇摆效应产生的拉力，还能实现水平双向减隔震，对内罐采用摩擦摆支座进行隔震设计，可有效降低内罐罐体和储液的动力响应。
Inner and outer tank separation type LNG liquid storage tank shock insulation system and construction method thereof
The invention provides an inner and outer tank separation type LNG liquid storage tank shock insulation system and a construction method thereof, and aims to eliminate the adverse effect of the outer tank swing effect on an inner tank under the earthquake action. The inner and outer tank separation type LNG liquid storage tank shock insulation system comprises an inner tank bearing platform, an outer tank bearing platform, friction pendulum supports, a heat insulation sealing ring and pile foundations, wherein a certain gap is reserved between the inner tank bearing platform and the outer tank bearing platform, a heat insulation sealing material is filled, friction pendulum seismic mitigation and isolation supports are fixedly connected with the lower bottom face of the outer tank bearing platform and the top faces of the pile foundations, and the friction pendulum supports are fixedly connected with the lower bottom face of the inner tank bearing platform and the top faces of the pile foundationss. According to the system, on the basis of the full-capacity LNG liquid storage tank, rigid connection between an inner tank and an outer tank is omitted, so that the adverse effect of the swinging effect of the outer tank on the inner tank under the earthquake action is eliminated; and the friction pendulum shock absorption and isolation supports are adopted for carrying out shock isolation design on the outer tank, the supports can bear pulling force generated by the swinging effect of the tank body, horizontal two-way shock absorption and isolation can be achieved, the friction pendulum supports are adopted for carrying out shock isolation design on the inner tank, and the dynamic response of the tank body of the inner tank and stored liquid can be effectively reduced.
本发明提出一种内外罐分离式LNG储液罐隔震体系及其施工方法，以消除地震作用下外罐摇摆效应对内罐产生的不利影响，包括内罐承台、外罐承台、摩擦摆支座、绝热密封圈和桩基，内罐承台和外罐承台之间留一定间隙，填充绝热密封材料，摩擦摆减隔震支座分别与外罐承台下底面和桩基顶面固定连接，摩擦摆支座分别与内罐承台下底面和桩基顶面固定连接。该发明在全容式LNG储液罐的基础上，取消内外罐之间的刚性连接，以消除地震作用下外罐摇摆效应对内罐的不利影响；采用摩擦摆减隔震支座对外罐进行隔震设计，该支座既能承担因罐体摇摆效应产生的拉力，还能实现水平双向减隔震，对内罐采用摩擦摆支座进行隔震设计，可有效降低内罐罐体和储液的动力响应。
Inner and outer tank separation type LNG liquid storage tank shock insulation system and construction method thereof
一种内外罐分离式LNG储液罐隔震体系及其施工方法
GU XIANGLIN (author) / WU JIEYING (author) / YU QIANQIAN (author)
2021-07-27
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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