Bridge jacking system based on releasable prestressed underpinning system and construction method thereof

A prestressed and disassembled technology, applied in bridges, bridge maintenance, bridge reinforcement, etc., can solve the problems of bridge structures that cannot be applied to self-heavy, small bearing capacity, heavy workload, etc., to ensure bearing capacity and facilitate connection and installation , The effect of convenient operation

Inactive Publication Date: 2018-11-23
ANHUI ROAD & BRIDGE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are certain defects in the existing bridge jacking construction. For example, the column-holding beam jacking construction, which is used as a reaction force platform, has a small bearin

Method used

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  • Bridge jacking system based on releasable prestressed underpinning system and construction method thereof
  • Bridge jacking system based on releasable prestressed underpinning system and construction method thereof
  • Bridge jacking system based on releasable prestressed underpinning system and construction method thereof

Examples

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Example Embodiment

[0041] The technical solutions of the present invention will be further described and illustrated below through specific embodiments.

[0042] Unless otherwise specified, the raw materials used in the examples of the present invention are all commonly used raw materials in the field, and the methods used in the examples are all conventional devices and conventional methods in the field.

[0043] A bridge jacking system based on a detachable prestressed underpinning system, such as Figure 1-Figure 11 As shown, it includes the expanded cap 8 obtained by expanding the original cap 7 of the bridge. The expanded cap 8 is pre-installed with embedded anchor bolts 10, and the expanded cap 8 is installed and supported by the embedded anchor bolts 10. Use plug-in construction frame 9; for support, plug-in construction frame 9 is equipped with adjustable hoop pre-stressed support platform 11 as a bridge lifting reaction platform; bridge includes cover beam 2 and bridge to be lifted on cover ...

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Abstract

The invention relates to the technical field of bridge jacking equipment, comprising an insert-type construction frame for support use, an adjustable hoop prestressed support platform, a shaped capping-beam-elevating formwork support system and transverse limiting devices. The insert-type construction frame for support use is fixed to an expanded cap and is connected via embedded anchor bolts; theinsert-type construction frame for support use is quickly connected via connection sleeves, vertical rods, transverse rods and oblique rods. The adjustable hoop prestressed support platform can be composed of two dual-concave grooves and can reduce construction quantity using a cap as a reaction platform. The shaped capping-beam-elevating formwork support system includes a side formwork, an end formwork and extension slotted forms, and is quickly connected via grooves and tongues as well as connection rods. The transverse limiting devices are arranged at the two ends of a deck and is each composed of a limiting truss, support blocks, a rail for sliding of the support blocks, a fixing plate, and a transverse limiting jack. When the deck shifts transversely, gradual fine correction is madevia the transverse limiting jacks.

Description

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Claims

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Application Information

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IPC IPC(8): E01D22/00E01D21/00
CPCE01D21/00E01D22/00
Inventor 王新泉
Owner ANHUI ROAD & BRIDGE GRP
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