A kind of turning method of steel cable tower
A technology of steel cable towers and booms, applied in bridge parts, erection/assembly of bridges, bridges, etc., can solve problems such as construction safety threats, overloading, and changes in the position of the center of gravity of steel cable towers, so as to improve stability and safety. Effect
Active Publication Date: 2018-07-03
WUCHUAN HEAVY ENG
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Problems solved by technology
[0004] This application provides a method for turning over the cable tower, which solves the problem that the conventional turning method used in the prior art to turn over the cable tower will cause a large change in the position of the center of gravity of the cable tower, and may cause overload during the turning process. Technical issues that pose potential threats to construction safety
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[0025] The embodiment of the present application provides a method for turning over the cable tower, which solves the problem that the conventional turning method used in the prior art to turn over the cable tower will cause a large change in the position of the center of gravity of the cable tower, which may occur during the turnover process. Overloading, technical problems that pose a potential threat to construction safety.
[0026] The technical solution in the embodiment of the present application is to solve the above-mentioned technical problems, and the general idea is as follows:
[0027] A method for turning over a steel cable tower, the method for turning over includes:
[0028] Fixing the tower head of the steel cable tower in the rectangular frame;
[0029] The second pad beam is fixed on the first boom of the first L-shaped hanger, the fourth pad beam is fixed on the second boom, the first boom is perpendicular to the second boom, and the second boom is vertical...
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The invention discloses a turning-over method for a steel pylon. The method comprises the steps that a rectangular frame which is fixed on the tower top of the steel pylon is supported on a first L-shaped hanging bracket; a tower tail of the steel pylon is supported on a second L-shaped hanging bracket; the first L-shaped hanging bracket and the second L-shaped hanging bracket are rotated by 90 DEG; the first L-shaped hanging bracket and the second L-shaped hanging bracket are removed; the rectangular frame is supported on the first L-shaped hanging bracket; and the tower tail is supported on the second L-shaped hanging bracket and successively rotated by 90 DEG, so the steel pylon can be turned over. The first L-shaped hanging bracket and the second L-shaped hanging bracket are symmetrically disposed on two opposite sides relative to the gravity center of the steel pylon respectively; the connecting line of the center point of the connecting line between end parts of a first hanging arm and a second handing arm and the center point of the connecting line between end parts of a third hanging arm and a fourth hanging arm passes through the gravity center of the steel pylon; and the gravity height of the steel pylon is kept unchanged during rotation, so turning-over stability of the steel pylon can be enhanced.
Description
technical field [0001] The invention relates to the technical field of bridge construction, in particular to a method for turning over a steel cable tower. Background technique [0002] The Hong Kong-Zhuhai-Macau Bridge is a cable-stayed bridge with a central parallel single-cable plane and a three-tower steel box girder, and the cable towers are "dolphin"-shaped steel cable towers. Restricted by the environment of the on-site hoisting conditions, it is necessary to turn over 180°, so that the auxiliary tower is lowered and the main tower is upper for transportation and hoisting. [0003] The steel cable tower weighs 2560t and has an overall size of 19m×20m×105m, including the main tower, auxiliary tower and decorative blocks. The conventional turn-over method will cause a large change in the position of the center of gravity of the steel cable tower, and overload may occur during the turn-over process, which poses a potential threat to construction safety. Contents of th...
Claims
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IPC IPC(8): E01D21/00E01D19/14
CPCE01D19/14E01D21/00
Inventor 祝李元陈家菊张虎郑慧向晋华余志强姚伟健雷佳元
Owner WUCHUAN HEAVY ENG