A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Lifting system applied to lifting and mounting of main tower steel truss
The invention provides a lifting system applied to lifting and mounting of a main tower steel truss. The lifting system comprises at least two bearing beams, a main longitudinal beam, at least two center hole jacks, at least two steel strands, a lifting appliance and at least two vibration absorption mechanisms, wherein the two bearing beams are arranged on the top surface of a main tower; the main longitudinal beam is mounted on the upper end surfaces of the bearing beams; the two center hole jacks are arranged on the top surface of the main longitudinal beam; each center hole jack is used for fixing one steel strand; the two steel strands are lifted by the same lifting appliance; the vibration absorption mechanisms are mounted between the lifting appliance and the main longitudinal beamof the steel strands; and mass blocks are arranged in the vibration absorption mechanisms. According to the lifting system, the steel strands and connecting pieces thereof are equivalent to a double-single-pendulum series system by utilizing the vibration absorption mechanisms, so that the main tower steel truss lifted by the lifting appliance is positioned at a lagging pendulum position in the double-series single-pendulum system, the swing amplitude of the main tower steel truss is effectively reduced, and the motion stability of the main tower steel truss is greatly improved; and therefore,the main tower steel truss can provide a static and stable state for a constructor during lifting, and safe and effective butt joint work is implemented.
一种应用于主塔钢桁架提升安装的提升系统，包括至少二个垫梁、主纵梁、至少二个穿心式千斤顶、至少二个钢绞线、吊具、至少二个吸振机构。其中，二个垫梁设置于主塔顶面，主纵梁安装于垫梁上端面；二个穿心式千斤顶设置于主纵梁顶面，每个穿心式千斤顶都将一个钢绞线固定，二个钢绞线均吊有同一个所述吊具，钢绞线在吊具与主纵梁之间装有吸振机构，吸振机构之内设有质量块。本发明利用吸振机构将钢绞线及其连接件等效为双单摆串联系统，使吊具所吊运的主塔钢桁架处于双串联单摆系统中的滞后摆位置，有效降低主塔钢桁架的摆动幅度，同时大幅提高其运动稳定性，使主塔钢桁架在吊运时能为施工者提供静止、稳定的状态，以此实施安全有效的对接工作。
Lifting system applied to lifting and mounting of main tower steel truss
The invention provides a lifting system applied to lifting and mounting of a main tower steel truss. The lifting system comprises at least two bearing beams, a main longitudinal beam, at least two center hole jacks, at least two steel strands, a lifting appliance and at least two vibration absorption mechanisms, wherein the two bearing beams are arranged on the top surface of a main tower; the main longitudinal beam is mounted on the upper end surfaces of the bearing beams; the two center hole jacks are arranged on the top surface of the main longitudinal beam; each center hole jack is used for fixing one steel strand; the two steel strands are lifted by the same lifting appliance; the vibration absorption mechanisms are mounted between the lifting appliance and the main longitudinal beamof the steel strands; and mass blocks are arranged in the vibration absorption mechanisms. According to the lifting system, the steel strands and connecting pieces thereof are equivalent to a double-single-pendulum series system by utilizing the vibration absorption mechanisms, so that the main tower steel truss lifted by the lifting appliance is positioned at a lagging pendulum position in the double-series single-pendulum system, the swing amplitude of the main tower steel truss is effectively reduced, and the motion stability of the main tower steel truss is greatly improved; and therefore,the main tower steel truss can provide a static and stable state for a constructor during lifting, and safe and effective butt joint work is implemented.
一种应用于主塔钢桁架提升安装的提升系统，包括至少二个垫梁、主纵梁、至少二个穿心式千斤顶、至少二个钢绞线、吊具、至少二个吸振机构。其中，二个垫梁设置于主塔顶面，主纵梁安装于垫梁上端面；二个穿心式千斤顶设置于主纵梁顶面，每个穿心式千斤顶都将一个钢绞线固定，二个钢绞线均吊有同一个所述吊具，钢绞线在吊具与主纵梁之间装有吸振机构，吸振机构之内设有质量块。本发明利用吸振机构将钢绞线及其连接件等效为双单摆串联系统，使吊具所吊运的主塔钢桁架处于双串联单摆系统中的滞后摆位置，有效降低主塔钢桁架的摆动幅度，同时大幅提高其运动稳定性，使主塔钢桁架在吊运时能为施工者提供静止、稳定的状态，以此实施安全有效的对接工作。
Lifting system applied to lifting and mounting of main tower steel truss
一种应用于主塔钢桁架提升安装的提升系统
ZHENG YI (author) / ZHU DONGMING (author) / XIA CHAOJUAN (author) / YANG ZHIMING (author) / LIANG HUI (author) / ZHANG YANHUI (author) / CHEN YI (author) / WANG QIWEN (author) / HUANG XINGYU (author) / LI FENG (author)
2021-02-12
Patent
Electronic Resource
Chinese
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