On-arch active control leveling anchoring device assembly for suspender replacement and method for suspender replacement

A technology of active control and anchoring device, applied in arch bridges, bridge reinforcement, erection/assembly of bridges, etc., can solve the problems of slow progress of demolition and restoration operations, inability to timely feedback control, and inability to use pads in turnaround, and achieve timely online monitoring. The effect of feedback control, easy control of construction quality, easy replacement and installation and dismantling

Pending Publication Date: 2020-04-21
LIUZHOU OVM STRUCTURE INSPECTION TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages: The main arch ring is damaged by the planting reinforcement drilling, the engineering operation intensity is high, the pouring concrete needs to be cured to the design strength before it can be used, the pad cannot be used in turnover, the demolition and restoration work progress is slow, the cycle is long, and the construction cost is high;
[0003] Secondly, the existing technology uses manual off-line monitoring of the anti-slip safety during the replacement process, which cannot provide timely feedback control, poor safety and reliability, and a long cycle

Method used

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  • On-arch active control leveling anchoring device assembly for suspender replacement and method for suspender replacement
  • On-arch active control leveling anchoring device assembly for suspender replacement and method for suspender replacement
  • On-arch active control leveling anchoring device assembly for suspender replacement and method for suspender replacement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] An on-arch active control leveling anchor assembly for boom replacement.

[0052] Such as Figure 1-Figure 3 As shown, the active control leveling anchor device assembly on the arch used for boom replacement includes two sets of active control leveling anchor devices on the arch, and the two sets of active control leveling anchor devices on the arch are respectively arranged on one side of the old boom. The active control leveling and anchoring device on the arch includes: leveling beam 4, pin joint structure I5, inclination sensor 6, pin joint structure II7, force sensor I8, electric cylinder I9, pin joint structure III10, upper clamp I11, upper clamp Ⅱ12, pin connection structure Ⅳ13, pin connection structure Ⅴ14, 2 upper high-strength screws 15, force sensor Ⅱ16, 2 electric cylinders Ⅱ17, force sensor Ⅲ18, 2 electric cylinders Ⅲ19, lower fixture Ⅰ20, pin connection structure Ⅵ21, lower fixture II22, pin connection structure VII23, two lower high-strength screws 24 a...

Embodiment 2

[0060] A method for replacing the suspender of a concrete arch bridge:

[0061] It is a method for replacing the suspension rod of a concrete arch bridge by using the active control leveling anchor assembly on the arch described in the first embodiment for the replacement of the suspension rod, and it includes the following steps:

[0062] A. Install the active control leveling anchor assembly on the arch for boom replacement:

[0063] Install a set of active control leveling and anchoring devices on the arch symmetrically on both sides of the old suspenders of the main arch ring;

[0064] B. Install the upper and lower pole beams, tension jacks and temporary booms:

[0065] Vertically set the upper pole beam 3 on the leveling beam 4 of the active control leveling anchor device on the arch, and the four temporary suspenders 28 pass through the tension jack 2, the upper pole beam 3, and the lower pole beam respectively from top to bottom. 30, the upper end is anchored by the ...

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Abstract

The invention discloses an on-arch active control leveling anchoring device assembly for suspender replacement which comprises two on-arch active control leveling and anchoring devices, and each on-arch active control leveling and anchoring device comprises a leveling beam, 7 pin joint structures, 2 electric cylinders I and II, upper clamps I and II; upper and lower high-strength screws; lower clamps I and II, an inclination angle sensor, a force sensor I, a force sensor II and a contact sensor; in a working state, the two sides of the upper clamp I, the lower clamp I, the upper clamp II, andthe lower clamp II are respectively connected with the high-strength screws respectively; the contact sensor is arranged on the side surface of the upper clamp I; the force sensor I, the force sensorII and a force sensor III are arranged on the electric cylinder I, the electric cylinder II and an electric cylinder III respectively, the inclination angle sensor is arranged on the top face of the leveling beam, the on-arch active control leveling anchoring device assembly is adopted to replace a hanging rod, standardized construction can be achieved, the mounting and dismounting progress is high, and safety and reliability are high.

Description

technical field [0001] The invention relates to a bridge construction machine tool and a construction method, in particular to an active control leveling and anchoring device assembly on an arch used for replacing a concrete arch bridge suspender and a method for replacing the suspender. Background technique [0002] At present, most concrete arch bridge suspender replacement cable force conversion devices are mainly temporary hoisting devices. The upper part of the arch needs to be set up by planting reinforcement, binding steel mesh and pouring concrete to set up pads to achieve arch leveling, which is convenient for setting beams and anti-slip the goal of. Disadvantages: Drilling of rebars damages the main arch ring, and the engineering operation intensity is high. The poured concrete needs to be cured to the design strength before it can be used. The block cannot be used for turnover. The progress of demolition and restoration is slow, the cycle is long, and the construc...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): E01D22/00E01D4/00
CPCE01D22/00E01D4/00
Inventor窦勇芝宁绍锋韦福堂王晓琳黎祖金甘科刘炜余丹
OwnerLIUZHOU OVM STRUCTURE INSPECTION TECH