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Chainsaw cutting and dismantling method of tie-rod arch bridge with few brackets

A technology for tie-rod arch bridges and chainsaws, which is applied in the field of chain-saw cutting and dismantling of tie-rod arch bridges with few supports, can solve problems such as long construction period, and achieve the effects of high operation efficiency, guaranteed construction quality and less equipment.

Active Publication Date: 2022-08-02
NANJING RUNHUA MUNICIPAL CONSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to improve the problem of long construction period in the process of dismantling tie-bar arch bridges, this application provides a chainsaw cutting and demolition method for tie-bar arch bridges with few brackets

Method used

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  • Chainsaw cutting and dismantling method of tie-rod arch bridge with few brackets
  • Chainsaw cutting and dismantling method of tie-rod arch bridge with few brackets
  • Chainsaw cutting and dismantling method of tie-rod arch bridge with few brackets

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Embodiment Construction

[0055] Attached to the following Figure 1-10 This application will be described in further detail.

[0056] The embodiment of the present application discloses a chain saw cutting and dismantling method for a tie-rod arch bridge with few supports. refer to figure 1 and figure 2 , The tie-rod arch bridge less bracket chain saw cutting and dismantling method includes the following steps:

[0057] Step S1: Before dismantling, use enclosures at both ends of the tied arch bridge. Post eye-catching notices and warning signs on the enclosures. The entrance of the construction area is sent to guard for 24 hours, and irrelevant personnel and vehicles are strictly prohibited from entering the construction site.

[0058] Then, together with the channel management department, measure the bottom elevation of the existing channel as the acceptance standard of the channel after demolition (not lower than the elevation of the old river bottom after demolition and cleaning). In order to ...

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Abstract

The present application relates to a chain saw cutting and dismantling method for tied arch bridges with few supports, which comprises the following steps: erecting temporary buttresses; dismantling bridge decks and anti-collision guardrails; symmetrically dismantling middle beams; Removal of tie beams; removal of side sections on both sides of arch ribs; removal of side sections of tie beams; removal of end beams; removal of tie beam buttresses and arch rib support frames; river cleaning; , The construction period is short, and in the construction process, the labor is less, the equipment is less, the operation efficiency is high, and the construction cost is effectively reduced.

Description

technical field [0001] The present application relates to the field of bridge construction, and in particular, to a method for cutting and dismantling a tie-rod arch bridge with few supports by a chainsaw. Background technique [0002] The tied arch bridge is generally composed of arch ribs, tied rods (beams), suspension rods (or columns), etc. The tied arch bridge is a bridge type that combines the advantages of arches and beams. It combines two structures of arch and beam. The basic structural forms are combined together to bear the load together, and give full play to the structural performance and combined effect of beam bending and arch compression. At present, with the rapid development of the city and the continuous upgrading of the waterway, more and more old tied arch bridges are facing demolition and reconstruction. [0003] In the related art, the Chinese Patent Publication No. CN108411804A discloses a Bailey reverse hanging composite beam device for dismantling ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D24/00E01D4/00
CPCE01D22/00E01D4/00
Inventor 陈伟江一飞梁安东董宇汪亮
Owner NANJING RUNHUA MUNICIPAL CONSTR CO LTD