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A platform for research: civil engineering, architecture and urbanism
Sunken bearing platform suitable for land low-temperature film storage tank system and preparation method of sunken bearing platform
The invention relates to a sunken type bearing platform suitable for an onshore low-temperature film storage tank system and a preparation method thereof.The sunken type bearing platform is arranged between a prestressed concrete outer tank wall and an engineering pile and used for transmitting the load of an LNG storage tank to the engineering pile, the sunken type bearing platform is of a disc-shaped structure, the lower surface of the sunken type bearing platform is a horizontal plane, and the lower surface of the sunken type bearing platform is a horizontal plane; the upper surface is an arc-shaped surface which is recessed towards the center, the upper surface and the lower surface are connected through a side wall surface, and the curvature radius of the upper surface is 5-10D. According to the sunken bearing platform, the upper surface is arranged to be the inwards-sunken arc-shaped surface, the problems of break angles and stress concentration do not exist, the cavitation allowance of a low-pressure pump in a tank can reach 0.3-0.6 m, and the technical problem that the break angle stress on the periphery of an existing pump pit is concentrated and the cavitation allowance of the low-pressure pump in the tank is too high are solved.
本发明涉及一种适用于陆上低温薄膜储罐系统的下沉式承台及其制备方法，所述下沉式承台设置于预应力混凝土外罐墙体和工程桩之间，用于将LNG储罐的荷载传递给工程桩，所述下沉式承台呈盘状结构，其下表面为水平面，上表面为向中心凹陷的弧形面，所述上表面和所述下表面通过侧壁面衔接，所述上表面的曲率半径为5‑10D。本发明所提供的下沉式承台将上表面布置成向内凹陷的弧形面，不存在折角，无应力集中问题，罐内低压泵的气蚀余量可以做到0.3‑0.6m，解决了现有泵坑周边折角应力集中的技术问题以及罐内低压泵的气蚀余量过高的问题。
Sunken bearing platform suitable for land low-temperature film storage tank system and preparation method of sunken bearing platform
The invention relates to a sunken type bearing platform suitable for an onshore low-temperature film storage tank system and a preparation method thereof.The sunken type bearing platform is arranged between a prestressed concrete outer tank wall and an engineering pile and used for transmitting the load of an LNG storage tank to the engineering pile, the sunken type bearing platform is of a disc-shaped structure, the lower surface of the sunken type bearing platform is a horizontal plane, and the lower surface of the sunken type bearing platform is a horizontal plane; the upper surface is an arc-shaped surface which is recessed towards the center, the upper surface and the lower surface are connected through a side wall surface, and the curvature radius of the upper surface is 5-10D. According to the sunken bearing platform, the upper surface is arranged to be the inwards-sunken arc-shaped surface, the problems of break angles and stress concentration do not exist, the cavitation allowance of a low-pressure pump in a tank can reach 0.3-0.6 m, and the technical problem that the break angle stress on the periphery of an existing pump pit is concentrated and the cavitation allowance of the low-pressure pump in the tank is too high are solved.
本发明涉及一种适用于陆上低温薄膜储罐系统的下沉式承台及其制备方法，所述下沉式承台设置于预应力混凝土外罐墙体和工程桩之间，用于将LNG储罐的荷载传递给工程桩，所述下沉式承台呈盘状结构，其下表面为水平面，上表面为向中心凹陷的弧形面，所述上表面和所述下表面通过侧壁面衔接，所述上表面的曲率半径为5‑10D。本发明所提供的下沉式承台将上表面布置成向内凹陷的弧形面，不存在折角，无应力集中问题，罐内低压泵的气蚀余量可以做到0.3‑0.6m，解决了现有泵坑周边折角应力集中的技术问题以及罐内低压泵的气蚀余量过高的问题。
Sunken bearing platform suitable for land low-temperature film storage tank system and preparation method of sunken bearing platform
适用于陆上低温薄膜储罐系统的下沉式承台及其制备方法
ZHONG XI (author) / ZHANG CHAO (author) / YANGFAN (author) / ZHANG BOCHAO (author) / XIAO LI (author) / HUANG HUAN (author) / ZHAO MINGRUI (author) / LIU YANG (author) / JI NINGNING (author) / LI YUHANG (author)
2022-03-25
Patent
Electronic Resource
Chinese
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