Device dedicated for lifting steel box beam of small and medium-sized long-span suspension bridge and lifting method

A technology with small and medium spans and special devices, which is applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc. It can solve the problems of high cost, long installation time, and increased bridge hoisting costs, and achieves strong applicability and reduced hoisting costs. Effect

Active Publication Date: 2015-01-21
JIANGSU PROVINGIAL TRANSPORTATION ENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high cost of the cable-mounted crane, the installation of the cable-mounted crane is complicated, the installation time is long, the versatility of the cable-mounted crane is poor, and the utilization rate is low. When the steel box girder is hoisted, the hoisting cost of the bridge will be greatly increased

Method used

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  • Device dedicated for lifting steel box beam of small and medium-sized long-span suspension bridge and lifting method
  • Device dedicated for lifting steel box beam of small and medium-sized long-span suspension bridge and lifting method

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Embodiment Construction

[0026] like figure 1 As shown, the present invention includes a rope 9, and the rope 9 bypasses the pulley A7 and the pulley B8 respectively, and the pulley A7 and the pulley B8 are respectively movably connected with the bracket C11 and the bracket D12, and the bracket C11 is movably connected with the cable clip 6, The bracket D12 is movably connected with a pulling device 13, one end of the rope 9 is fixed to the bracket C11, and the other end of the rope 9 is connected to the power device 3; the cable clip 6 is composed of two plywood, and the two sides of the plywood are provided with a plurality of Through hole 15, the splint is arched in a semicircle along the axis, and after the two splints are combined, the formed clamping cavity matches the main cable 1 of the suspension bridge; the movable connection between the bracket C11 and the cable clamp 6 is a pin shaft connection; The lifting device 13 is a hook.

[0027] like figure 2 As shown, the present invention incl...

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Abstract

The invention discloses a device dedicated for lifting a steel box beam of a small and medium-sized long-span suspension bridge and a lifting method. The device comprises a rope, wherein the rope bypasses a pulley A and a pulley B respectively, and the pulley A and the pulley B are respectively and movably connected with a support C and a support D; the support C is movably connected with a cable clamp, and the support D is movably connected with a pulling device; and one end of the rope is fixed with the support C, and the other end of the rope is connected with a power device. According to the invention, when the lifting of the steel box beam of the small and medium-sized long-span suspension bridge is performed, the power device is used for driving the rope, then the steel box beam is lifted through the pulling device, and symmetric lifting is performed. Seen from the process, when the device is used for lifting the steel box beam of the small and medium-sized long-span suspension bridge, the applicability of lifting is strong, and the lifting cost of the steel box beam is reduced under the premise of ensuring the lifting quality of the steel box beam.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a special device and a hoisting method for hoisting a steel box girder of a medium and small span suspension bridge. Background technique [0002] With the economic development of the country and the improvement of bridge construction technology, more and more attention has been paid to suspension bridges with beautiful linear shapes. The weight is light, so the main girder of domestic suspension bridges adopts the steel box girder scheme has also become the mainstream. Most of the erection methods of steel box girder of suspension bridges are carried out by cable-mounted cranes: first erect the main cable, and then use the cable-mounted crane on the main cable to vertically lift the steel box girder on the lower beam barge or transport vehicle into place. Install. However, due to the high cost of the cable-mounted crane, the complicated installation of the cable-mounted cran...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00
Inventor 周汉林刘国承郑广田董立功
Owner JIANGSU PROVINGIAL TRANSPORTATION ENG GRP
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