Block type cutting system for cutting existing beam body

Abstract

The utility model relates to the technical field of beam body cutting, in particular to a partitioning type cutting system for cutting an existing beam body, which comprises a rope saw cutting machine and a steel pipe fastener type scaffold arranged on one side or two sides of an existing bent cap. The rope saw cutting machine is arranged on the steel pipe fastener type scaffold, a rope saw chain of the rope saw cutting machine penetrates through a drill hole formed in the existing track beam, and the rope saw cutting machine conducts sleeve cutting on the existing track beam. The utility model has the advantages that the cutting operation time of the existing beam body is shortened, and the construction efficiency is improved; the construction structure is simple, reasonable, convenient to construct and suitable for popularization.

Description

Technical Field

[0001] This utility model relates to the field of beam cutting technology, specifically to a segmented cutting system for cutting existing beams. Background Technology

[0002] When upgrading existing elevated bridges on rail transit lines, it is necessary to remove the existing beams. Currently, the removal of existing beams is mainly carried out by construction workers using hand-held cutting equipment. Although this method is simple, it takes a relatively long time, especially when the removal of existing beams can only be carried out during the maintenance window when rail transit is not in operation. In such cases, manual cutting cannot meet the requirements. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of the prior art by providing a segmented cutting system for cutting existing beams. By setting up cutting systems on both sides of the existing beams and dividing them into segments, the cutting time of the existing beams is reduced, and construction efficiency is improved.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A segmented cutting system for cutting existing beams, which are erected on existing piers, is characterized by comprising a wire saw cutting machine and a steel pipe coupler scaffold, wherein the steel pipe coupler scaffold is set on one or both sides of the existing cap beam, the wire saw cutting machine is arranged on the steel pipe coupler scaffold, the wire saw chain of the wire saw cutting machine passes through a drilled hole in the existing track beam, and the wire saw cutting machine cuts the existing track beam.

[0006] The steel pipe coupler scaffolding is fixed to the pier body of the existing pier column by clamps.

[0007] Along the height direction of the steel pipe coupler scaffold, several clamps are arranged at intervals between it and the existing pier.

[0008] The advantages of this utility model are: it reduces the cutting time of existing beams and improves construction efficiency; the construction structure is simple and reasonable, construction is convenient, and it is suitable for promotion. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0010] Figure 2 This is a structural schematic diagram of Embodiment 2 of the present invention;

[0011] Figure 3 This is a structural schematic diagram of Embodiment 3 of the present invention. Detailed Implementation

[0012] The features and other related features of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments, so as to facilitate the understanding of those skilled in the art:

[0013] like Figure 1-3 As shown in the figure, numbers 1-8 represent: 1. Existing pier column, 2. Existing track beam, 3. Steel pipe coupler scaffolding, 4. Wire saw cutting machine, 5. Wire saw chain, 6. Drill hole, 7. Hoop, 8. Existing cap beam.

[0014] Example 1: As Figure 1 As shown, in this embodiment, the segmented cutting system for cutting existing beams is used to cut existing track beams 2, which are supported on existing cap beams 8, and the existing cap beams 8 are supported on existing piers 1.

[0015] like Figure 1 As shown, the segmented cutting system in this embodiment includes a steel pipe disc-lock scaffold 3 and a wire saw cutting machine 4. The steel pipe coupler scaffold 3 is positioned outside the existing cap beam 8 on both sides. The steel pipe coupler scaffold 3 on both sides is fixedly connected to its adjacent existing pier column 1 using several clamps 7, thereby ensuring the stability of the steel pipe coupler scaffold 3. In this embodiment, three clamps 7 are evenly spaced along the height direction of the steel pipe coupler scaffold 3.

[0016] Wire saw cutting machines 4 are installed on the steel pipe coupler scaffolding 3 on both sides. Each wire saw cutting machine 4 has a wire saw chain 5, which passes through the drilled holes 6 in the existing track beam 2. The drilled holes 6 are made before the wire saw cutting machines 4 start working, dividing the existing track beam 2 into two symmetrical parts. At this time, the two wire saw cutting machines 4 installed on both sides of the existing track beam 2 are used to achieve the segmented cutting of the existing track beam 2. After the existing track beam 2 is cut, the concrete blocks are removed using custom-made clamps and moved to the ground.

[0017] Example 2: Figure 2 As shown, the difference between this embodiment and embodiment one is that the existing track beam 2 in this embodiment is a single-span beam with a relatively small volume. In this case, this embodiment only requires erecting a steel pipe coupler scaffold 3 on one side of the existing cap beam 8, and only requires arranging a wire saw cutting machine 4 on the steel pipe coupler scaffold 3 to meet the cutting needs of the existing track beam 2.

[0018] Example 3: Figure 3 As shown, the difference between this embodiment and Embodiment 1 and Embodiment 2 is that: Figure 3The direction shown is for illustrative purposes. Due to space limitations, the steel pipe coupler scaffolding 3 located to the left of the existing track beam 2 cannot accommodate the wire saw cutting machine 4 on that side. In this case, the wire saw cutting machine 4 on that side can be placed on an adjacent existing or newly constructed cap beam to meet the space requirements.

[0019] In the specific implementation of the above embodiments: before drilling 6, a concrete core sampling machine is used to take a 3cm diameter core from the existing track beam 2 and a 1.2m long core from the beam end to verify that the subsequent cleaning work will not damage the anchorage and cause serious consequences. After taking the core at each control point, in order to ensure that the anchor head is within the error range, a core of the same size is taken again above and below the core sampling point.

[0020] The construction was carried out using the skylight point method. The limiting blocks on both sides of the existing cap beam 8 were removed first, and then the beam joints on both sides were symmetrically removed. The thickness of the concrete block was controlled at 5-6cm. After the cutting was completed, the concrete block was removed using a custom clamp and moved to the ground.

[0021] The steel pipe coupler scaffold 3 is erected at a distance of about two meters from the existing cap beam 8. The horizontal spacing of the steel pipe coupler scaffold 3 is 900mm, the vertical spacing is 1200mm, and the step spacing is 1200mm.

[0022] Although the above embodiments have described the concept and embodiments of the present invention in detail with reference to the accompanying drawings, those skilled in the art will recognize that various improvements and modifications can still be made to the present invention without departing from the scope of the claims, and therefore will not be elaborated here.

Claims

1. A sectional cutting system for cutting of an existing beam body, for cutting an existing track beam, the existing track beam being erected on an existing bent cap, the existing bent cap being erected on an existing pier column, characterized in that: The system includes a wire saw cutting machine and a steel pipe coupler scaffolding, wherein the steel pipe coupler scaffolding is set on one or both sides of the existing cap beam, the wire saw cutting machine is arranged on the steel pipe coupler scaffolding, the wire saw chain of the wire saw cutting machine passes through a drilled hole in the existing track beam, and the wire saw cutting machine cuts the existing track beam.

2. The segmented cutting system for cutting existing beams according to claim 1, characterized in that: The steel pipe coupler scaffolding is fixed to the pier body of the existing pier column by clamps.

3. A segmented cutting system for cutting existing beams according to claim 2, characterized in that: Along the height direction of the steel pipe coupler scaffold, several clamps are arranged at intervals between it and the existing pier.

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