Large-span cable-stayed bridge girder erection construction system
A cable-stayed bridge and long-span technology, which is applied in the direction of cable-stayed bridges, bridge construction, bridges, etc., can solve the problems of slow assembly speed, difficult construction of the main girder, and difficulty in ensuring the alignment of the main girder, so as to ensure the alignment of the main girder, The effect of speeding up the construction and reducing the difficulty of installation
Pending Publication Date: 2022-03-25
ROAD & BRIDGE INT +1
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Problems solved by technology
[0002] During the construction of the bridge, due to the constraints of terrain, navigation, or existing property rights under the bridge, the main girder section does not have the conditions for direct vertical lifting and installation, resulting in difficulties in the construction of the main girder.
At present, the cantilever assembly technology of bridge deck crane is usually used, but this construction method requires the steel structure of the main girder to be an orthotropic steel girder. The components are transported to the bridge deck crane and assembled one by one. This construction method is relatively slow in assembly speed, and the alignment of the main girder is not easy to ensure
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[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0030] Such as Figures 1 to 7 As shown, the present invention provides a long-span cable-stayed bridge main girder erection construction system 1, comprising a first hoisting device, a slideway (not shown in the figure), a linear transfer device and a second hoisting device, the first hoisting device A lifting device is used to lift the beam section 2 to be installed to the linear transfer device, and the slideway is used to provide a moving guide for the linear transfer device, and the linear transfer device is used to lift the beam se...
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According to the technical scheme, the large-span cable-stayed bridge girder erection construction system is characterized in that the large-span cable-stayed bridge girder erection construction system comprises a first lifting device, a sliding way, a linear transfer device and a second lifting device, the first lifting device is used for lifting a to-be-installed girder section to the linear transfer device, and the sliding way is used for lifting the to-be-installed girder section to the linear transfer device; the slideway is used for providing movement guidance for the linear transfer device, the linear transfer device is used for transferring a to-be-mounted beam section from the first lifting device to the second lifting device, and the second lifting device is used for being mounted at the front end of the mounted beam section and can lift the to-be-mounted beam section to the same horizontal height as the mounted beam section. By the adoption of the construction system, the beam sections can be assembled in advance and then hoisted and installed, spare parts do not need to be transferred to a bridge floor to be assembled, the installation difficulty of the main beam is lowered, the line shape of the main beam is guaranteed, and the construction speed is also increased.
Description
technical field [0001] The invention relates to the technical field of bridge construction, in particular to a main girder erection construction system for a long-span cable-stayed bridge. Background technique [0002] During the bridge construction process, the main girder section does not have the conditions for direct vertical lifting and installation due to the terrain, navigation, or existing property rights under the bridge, which makes the construction of the main girder difficult. At present, the cantilever assembly technology of bridge deck crane is usually used, but this construction method requires the steel structure of the main girder to be an orthotropic steel girder. The components are transported to the bridge deck crane and assembled one by one. This construction method is relatively slow in assembly speed, and the alignment of the main girder is not easy to guarantee. Contents of the invention [0003] The purpose of the present invention is to provide a...
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IPC IPC(8): E01D21/00E01D21/10E01D11/04
CPCE01D21/00E01D21/10E01D11/04
Inventor 卢冠楠张皎肖向荣刘炜马水英张敬弦肖英陈小龙杨鑫
Owner ROAD & BRIDGE INT