A supporting pier used for dismantling a T-shaped bridge

Abstract

The present invention discloses a support pier used for dismantling a T-structured bridge, comprising a first anchoring bracket for supporting the rear legs of a bridge erecting machine, a second anchoring bracket for supporting the rear legs of the bridge erecting machine, a first connecting rod, a second connecting rod, a steel plate and a support column, wherein the first anchoring bracket is connected to the upper end of the first connecting rod, the second anchoring bracket is connected to the upper end of the second connecting rod, the rod bodies of the first connecting rod and the second connecting rod are both passed through the steel plate, and the lower ends of the first connecting rod and the second connecting rod are both connected to the steel plate, and the steel plate is connected to the support column. The first connecting rod and the second connecting rod are used to connect the bridge erecting machine with the support column, thereby increasing the tensile strength of the bridge erecting machine. When the bridge erecting machine transports components, the support pier can play a good tensile strength effect, thereby enabling the bridge erecting machine to transport components smoothly.

Description

Technical Field

[0001] The invention relates to the technical field of bridge demolition, and in particular to a supporting pier used for demolition of a T-structure bridge. Background Art

[0002] With the continuous development of the economy and society, many old bridges that have been in operation for many years are gradually unable to adapt to the growing traffic demand. The performance of these bridges is also gradually reduced under the influence of long-term loads and environment, and various diseases appear. They must be demolished and rebuilt. The methods for dismantling old bridges mainly include mechanical crushing demolition, blasting demolition and cutting demolition. Among them, the cutting demolition method is safer and has less impact on the environment. It is a more ideal method. Taking the demolition plan of Tanbu Bridge as an example, first build a temporary support pier and set up a bridge erection machine. The old bridge segments are cut in the reverse order of the construction sequence. Before cutting, the beam ends to be cut are hoisted. When cutting, cut along the longitudinal wet joints first, and then cut along the transverse segment joints. The two ends of the bridge erection machine simultaneously lift and transport the beam blocks symmetrically. When the river side beam blocks are transported to the top of the main pier, they stop and wait for the overhead crane to transport the back river side beam blocks to the transport vehicle on the shore, and then transport the other side beam blocks to the transport vehicle.

[0003] In order to ensure that the bridge erecting machine is not subjected to unstable force when lifting each segment during the dismantling of the T-structure cantilever, and to prevent the bridge erecting machine from overturning, it is necessary to set up temporary support piers between the main pier on the back river side and the original bridge auxiliary pier to facilitate loading and transportation after the segment is dismantled. The temporary support piers during construction mainly bear pressure, and the bridge erecting machine legs and the temporary support piers cannot withstand a large tensile force. Therefore, during the dismantling of the T-structure cantilever, the bridge erecting machine needs to adjust the balance of the structure during operation. The existing support piers cannot play a tensile effect, which slows down the construction progress and increases the difficulty of construction. Summary of the invention

[0004] In view of the technical problems existing in the prior art, the purpose of the present invention is to provide a support pier used for dismantling a T-structured bridge. The support pier improves the tensile strength of the bridge erecting machine, so that the bridge erecting machine can work stably.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A supporting pier used for dismantling a T-structured bridge comprises a first anchoring corbel for supporting a rear leg of a bridge erecting machine, a second anchoring corbel for supporting the rear leg of the bridge erecting machine, a first connecting rod, a second connecting rod, a steel plate and a supporting column, wherein the first anchoring corbel is connected to the upper end of the first connecting rod, the second anchoring corbel is connected to the upper end of the second connecting rod, the rod bodies of the first connecting rod and the second connecting rod both pass through the steel plate, and the lower ends of the first connecting rod and the second connecting rod are both connected to the steel plate, and the steel plate is connected to the supporting column.

[0007] Preferably, a reinforcing rib is provided between the first connecting rod or the second connecting rod and the steel plate, and the reinforcing rib is relatively arranged with the supporting column as the center.

[0008] Preferably, a crossbeam for supporting the track pad beam is provided between the first connecting rod and the second connecting rod, and the crossbeam is connected to the upper end of the steel plate.

[0009] Preferably, the crossbeam is made of an I-beam, the side wall of the I-beam is connected to the reinforcing rib, and the I-beam is connected to the support column through a steel plate.

[0010] Preferably, the first connecting rod and the second connecting rod are two threaded steel bars respectively, and the two threaded steel bars are arranged relatively parallel.

[0011] Preferably, both the first anchoring corbel and the second anchoring corbel are provided with ribs.

[0012] Preferably, the ribs are triangular in shape.

[0013] Preferably, the number of the I-beams is 1 to 4, and adjacent I-beams are arranged in parallel.

[0014] Preferably, the support columns are friction steel pipe piles.

[0015] The present invention has the following advantages and beneficial effects compared with the prior art:

[0016] 1. The support pier of the present invention is used for dismantling a T-structured bridge, wherein the first anchoring corbel of the support pier is connected to the first connecting rod, and the second anchoring corbel is connected to the second connecting rod, the first connecting rod and the second connecting rod both penetrate the steel plate, and the first connecting rod and the second connecting rod are connected to the lower end of the steel plate, and the steel plate is connected to the support column, and the first connecting rod and the second connecting rod are used to connect the bridge erecting machine to the support column, thereby increasing the tensile strength of the bridge erecting machine, and when the bridge erecting machine transports components, the support pier can play a good tensile strength effect, thereby enabling the bridge erecting machine to transport components smoothly.

[0017] 2. The supporting pier used for dismantling a T-shaped bridge of the present invention has a steel plate with reinforcing ribs, which are arranged relatively around the supporting column to increase the connection strength between the steel plate and the first connecting rod and the second connecting rod, thereby making the overall structure of the first connecting rod, the second connecting rod and the supporting column more stable.

[0018] 3. The support pier of the present invention is used for dismantling T-structured bridges. The crossbeam of the support pier can increase the connection strength between the bridge erecting machine and the support column. At the same time, it can also well support the track pad beam, so that the bridge erecting machine can be displaced on the support pier, thereby facilitating the bridge erecting machine to adjust the transportation angle.

[0019] 4. The supporting pier of the present invention is used for dismantling a T-structured bridge. The supporting columns of the supporting pier are friction steel pipe piles. When the friction steel pipe piles are inserted into the ground, the friction between the friction steel pipe piles and the soil is increased, so that the supporting pier can withstand greater tension.

[0020] 5. The support pier used for dismantling a T-structured bridge of the present invention, wherein the first connecting rod, the second connecting rod, the cross beam and the steel plate of the support pier are all steel structural members in a building, and the construction is simple and the stability is strong, and the support pier can be easily dismantled after the construction work is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a bridge erecting machine used for a supporting pier for dismantling a T-structure bridge according to the present invention.

[0022] Figure 2 It is a structural schematic diagram of a supporting pier used for dismantling a T-structure bridge according to the present invention.

[0023] Figure 3 It is a side view of a supporting pier used for dismantling a T-structure bridge according to the present invention.

[0024] Among them, 1 is an overhead crane, 2 is a hoist, 3 is a front leg of a bridge erecting machine, 4 is a middle support of a bridge erecting machine, 5 is a rear support of a bridge erecting machine, 6 is a rear leg of a bridge erecting machine, 7 is a supporting pier, 71 is a first anchoring corbel, 711 is a first connecting rod, 712 is a rib plate, 72 is a second anchoring corbel, 721 is a second connecting rod, 73 is a crossbeam, 731 is an I-beam, 74 is a steel plate, 741 is a reinforcing rib, 75 is a nut, 76 is a supporting column, 8 is a bridge, 9 is a bridge erecting machine, 10 is a transverse device, and 11 is a track pad beam. DETAILED DESCRIPTION

[0025] The purpose of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments cannot be described one by one here, but the implementation mode of the present invention is not therefore limited to the following embodiments.

[0026] like Figure 1 As shown, the construction principle of the bridge-building machine 9 is as follows: during the dismantling of the abandoned bridge 8, the bridge 8 adopts the cutting of components along the segment joints, and then the bridge-building machine 9 is used to transport the components of the abandoned bridge 8. The overhead crane 1 drives the hoist 2 to move on the bridge-building machine 9, and the components pass through the hoist 2 from left to right to the end close to the supporting pier 7. The bridge-building machine front foot 3, the bridge-building machine middle support 4 and the bridge-building machine rear support 5 are used to support the bridge-building machine 9, so that the bridge-building machine 9 is in a stable state as a whole, and the supporting pier 7 supports the rear support leg 6 of the bridge-building machine. When the hoists 2 at both ends of the bridge-building machine 9 transport components at the same time, the supporting pier 7 has the functions of tensile and compressive resistance, so that the bridge-building machine 9 can remain stable when subjected to the gravity of the components, and there is no need to consider whether the hoist 2 of the bridge-building machine 9 is in a relative position, thereby increasing the construction efficiency of the bridge-building machine 9.

[0027] like Figure 2 and 3 As shown, a supporting pier used for dismantling a T-structured bridge comprises a first anchoring corbel 71 for supporting the rear leg 6 of a bridge erecting machine, a second anchoring corbel 72 for supporting the rear leg 6 of the bridge erecting machine, a first connecting rod 711, a second connecting rod 721, a steel plate 74 and a supporting column 76, wherein the first anchoring corbel 71 is connected to the upper end of the first connecting rod 711, the second anchoring corbel 72 is connected to the upper end of the second connecting rod 721, the first connecting rod 711 and the second connecting rod 721 both pass through the steel plate 74, and the first connecting rod 711 and the second connecting rod 721 are both connected to the lower end of the steel plate 74, the steel plate 74 is connected to the supporting column 76, the first connecting rod 711 and the second connecting rod 721 are used to connect the bridge erecting machine 9 to the supporting column 76, thereby increasing the tensile strength of the bridge erecting machine 9, and when the bridge erecting machine 9 transports components, the supporting pier 7 can play a good tensile strength effect, thereby enabling the bridge erecting machine 9 to transport components smoothly.

[0028] A reinforcing rib 741 is provided between the first connecting rod 711 or the second connecting rod 721 and the steel plate 74, and the reinforcing rib 741 is relatively arranged with the support column 76 as the center, so as to increase the connection strength between the steel plate 74 and the first connecting rod 711 and the second connecting rod 721, thereby making the overall structure of the first connecting rod 711 and the second connecting rod 721 and the support column 76 more stable.

[0029] A crossbeam 73 for supporting the track cushion beam 11 is provided between the first connecting rod 711 and the second connecting rod 721, and the crossbeam 73 is connected to the upper end of the steel plate 74. The crossbeam 73 can increase the connection strength between the bridge erecting machine 9 and the support column 76, and can also well support the track cushion beam 11, so that the bridge erecting machine 9 can be displaced on the support pier 7, thereby facilitating the bridge erecting machine 9 to adjust the transportation angle.

[0030] The cross beam 73 is made of an I-beam 731, and the side wall of the I-beam 731 is connected to the reinforcing rib 741, which is used to strengthen the structural stability of the steel plate 74 and the cross beam 73, thereby increasing the tensile performance of the first connecting rod 711 and the second connecting rod 721. The I-beam 731 is connected to the support column 76 through the steel plate 74, and the I-beam 731 bears the pressure of the track pad beam, thereby increasing the compressive capacity of the cross beam 73.

[0031] The first connecting rod 711 and the second connecting rod 721 are two threaded steel bars respectively, and the two threaded steel bars are arranged relatively parallel. One end of the two threaded steel bars are connected to the first anchoring corbel 71 and the second anchoring corbel 72 respectively through nuts 75, and the other end of the threaded rod is also connected to the steel plate 74 through nuts 75. The construction is simple and the stability is strong. It can also be easily dismantled after the construction work is completed.

[0032] The first anchoring corbel 71 and the second anchoring corbel 72 are both provided with ribs 712, and the ribs 712 strengthen the connection stability between the first anchoring corbel 71 and the second anchoring corbel 72 and the rear support leg 6 of the bridge erecting machine.

[0033] The rib plate 712 is triangular in shape, and the triangular rib plate 712 is more stable, so that the first anchoring corbel 71 and the second anchoring corbel 72 have better structural stability.

[0034] The number of the I-beams 731 is 1 to 4. In this embodiment, there are three I-beams 731, and adjacent I-beams 731 are arranged in parallel. The I-beams 731 are used to support the track pad beams 11, so that the cross beam 73 is not easily deformed or damaged.

[0035] The support column 76 is a friction steel pipe pile. This support column 76 uses 6 friction steel pipe piles inserted into the ground. Two friction steel pipe piles form a support column 76. The support columns 76 are connected by cross beams 73 to form a double-door-shaped support structure. The friction steel pipe piles are inserted into the ground to increase the friction between the friction steel pipe piles and the soil, so that the support pier 7 can withstand a larger tensile force.

[0036] The above specific implementation modes are preferred embodiments of the present invention and cannot be used to limit the present invention. Any other changes or other equivalent replacement methods that do not deviate from the technical solution of the present invention are included in the protection scope of the present invention.

Claims

1. A supporting pier used for dismantling a T-shaped bridge, characterized in that: It includes a first anchoring bracket for supporting the rear legs of the bridge erecting machine, a second anchoring bracket for supporting the rear legs of the bridge erecting machine, a first connecting rod, a second connecting rod, a steel plate and a support column, wherein the first anchoring bracket is connected to the upper end of the first connecting rod, the second anchoring bracket is connected to the upper end of the second connecting rod, the rod bodies of the first connecting rod and the second connecting rod are both passed through the steel plate, and the lower ends of the first connecting rod and the second connecting rod are both connected to the steel plate, and the steel plate is connected to the support column; A reinforcing rib is provided between the first connecting rod or the second connecting rod and the steel plate, and the reinforcing rib is relatively arranged with the supporting column as the center; A crossbeam for supporting the track pad beam is provided between the first connecting rod and the second connecting rod, and the crossbeam is connected to the upper end of the steel plate; The cross beam is made of an I-beam, the side wall of the I-beam is connected to the reinforcing rib, and the I-beam is connected to the supporting column through a steel plate.

2. The supporting pier used for dismantling a T-shaped bridge according to claim 1, characterized in that: The first connecting rod and the second connecting rod are both two threaded steel bars, and the two threaded steel bars are arranged relatively parallel.

3. The supporting pier used for dismantling a T-shaped bridge according to claim 1, characterized in that: The first anchoring corbel and the second anchoring corbel are both provided with ribs.

4. The supporting pier used for dismantling a T-shaped bridge according to claim 3 is characterized by: The rib is triangular in shape.

5. The supporting pier used for dismantling a T-shaped bridge according to claim 1, characterized in that: The number of the I-beams is 1 to 4, and adjacent I-beams are arranged in parallel.

6. The supporting pier used for dismantling a T-shaped bridge according to claim 1, characterized in that: The support column is a friction steel pipe pile.

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