TW202212672A - Wedge-shaped Pushing Device for Bridge and Construction Method Thereof - Google Patents

Abstract

A wedge-shaped pushing device for bridge and construction method thereof includes a base, a lifter and a pushing mechanism. The top of the base has a platform with a wedge-shaped block; the wedge-shaped block has a top side formed into an upper slope; the top of the lifter has a pad; the pushing mechanism has an upper wedge-shaped seat, hydraulic cylinders and a support seat; the upper wedge-shaped seat has top with a cushion and a bottom formed into a lower slope; the hydraulic cylinder has a piston rod; the support seat has a top fixed and combined with the hydraulic cylinder by a pivot. By the wedge-shaped pushing device, the box girder can be displaced and pushed to achieve the effects of lowering the construction cost, facilitating the installation, and improving the stability and safety of the displacement and pushing of the box girder.

Description

Wedge type propulsion device for bridge and its construction method

The invention relates to a wedge-type propulsion device for bridges and a construction method thereof, in particular to a large-scale steel bridge or a prestressed concrete box girder which can reduce construction costs, be easy to assemble, and improve stability and safety during displacement propulsion operations. Wedge type propulsion device and construction method thereof.

According to the press, at present, large-scale steel bridges or prestressed concrete box girders are undergoing displacement advancement construction operations. Because the weight of the box girders is more than 1,000 metric tons, they cannot be moved by cranes. Piers, jacks and rails, propel or drag the box girder to slide on the rails to the installation position.

However, during the construction operation, during the displacement and advancement of the box girder, the jacks are used to pull the steel cable to slip on the set translation track. Due to the large friction force when the static box girder is pushed, it needs more power traction, and when the jack is pushed and pulled A huge horizontal force is required to overcome the static friction force, and the temporary pier needs to be additionally set up, supported with greater rigidity, and the traction force can be adjusted at any time, and the temporary pier or each support point of the bridge pier is prone to uneven stress and excessive horizontal load, resulting in bridge piers Problems such as concrete cracking and equipment damage affect the stability and safety of the bridge pier structure and the displacement propulsion of the box girder. In view of this, the inventor has conducted in-depth research and improvement, and the present invention has been produced.

In other words, the main purpose of the present invention is to provide a bridge wedge-type propulsion device and its construction method, which can make the box girder move forward, can reduce construction cost, be easy to assemble, and improve stability and safety.

The wedge-shaped propulsion device for bridges of the present invention comprises: a base, a lifter and a propulsion mechanism, wherein a platform is arranged above the base, and the platform is provided with a wedge-shaped block, and the wedge-shaped block is arranged on the On one side of the platform, the top surface forms an upper slope, and the bottom surface is horizontally in close contact with the platform; the top of the lifter is provided with a pad; Wedge-shaped seat, a plurality of hydraulic cylinders and a support seat, the top surface of the upper wedge-shaped seat is provided with a buffer pad, and the bottom surface forms a lower inclined surface, and the angle of the lower inclined surface and the upper inclined surface is consistent; the hydraulic cylinder is provided with a piston A rod, one end of the piston rod is connected to the upper wedge seat; the upper end of the support seat is fixedly combined with the hydraulic cylinder by a pivot piece, and the bottom is closely fitted with the platform.

In the above-mentioned wedge-shaped propulsion device for bridges, the base, the wedge-shaped block, the cushion block and the support seat can be made of cement concrete.

In the above-mentioned wedge-shaped propulsion device for bridges, the base, the wedge-shaped block, the cushion block and the support seat can be made of metal materials.

In the above-mentioned wedge-type propulsion device for bridges, the buffer pad can be made of rubber material.

Another object of the present invention is to provide a wedge-type propulsion construction method for bridges, which includes the following steps: (a). Disposing the wedge-type propulsion device under the box girder; (b). Adjusting the top height device Lift up and support the box beam; (c). The piston rod of the hydraulic cylinder pushes the upper wedge-shaped seat onto the wedge-shaped block, so that the lower inclined surface is in contact with the upper inclined surface, and the cushion block and the buffer pad Form a horizontal height to support the box beam; (d). Adjust and lower the top height device, bear against the box beam by the buffer pad, and use the weight of the box beam to press down and control the hydraulic cylinder to support the upper beam Wedge-shaped seat, the upper wedge-shaped seat slides down along the slope of the upper inclined plane, so that the box girder is displaced and advanced.

In the above wedge-shaped propulsion construction method for bridges, the wedge-shaped block and the cushion block can be made of cement concrete.

In the above-mentioned wedge-shaped propulsion construction method for bridges, the wedge-shaped block and the cushion block can be made of metal materials.

In the above-mentioned wedge-type propulsion construction method for bridges, the buffer pad can be made of rubber material.

Based on the above, by means of the device, the box girder can be moved forward by displacement, so as to reduce the construction cost, be easy to assemble, and improve the stability and safety of the displacement and advancement of the box girder.

In order to achieve the above objects, the technical means adopted by the present invention and the attainable effects are described in detail with reference to the following preferred feasible embodiments in conjunction with the accompanying drawings, so as to be fully understood.

Please refer to FIGS. 1-3 , the wedge-shaped propulsion device 1 according to the embodiment of the present invention includes:

A base 2 is made of cement concrete or metal material, and there is a platform 20 above. The platform 20 is provided with a wedge-shaped block 21. The wedge-shaped block 21 is made of cement concrete or metal material. On one side of the platform 20, an upper inclined surface 22 is formed on the top surface, and the bottom surface is closely attached to the platform 20 in a horizontal shape;

a lifter 3 (eg a jack), the top of which is provided with a block 30, the block 30 is made of cement concrete or metal material, and the block 30 can increase the supporting area; and

A propulsion mechanism 4 is disposed on the other side of the platform 20, and has an upper wedge seat 40, a plurality of hydraulic cylinders 41 and a support seat 42, and a buffer pad 43 is provided on the top surface of the upper wedge seat 40, The cushion pad 43 is made of rubber material, which can reduce the impact force when the weight is pressed down. The bottom surface forms a lower slope 44, and the angle of the lower slope 44 and the upper slope 22 is consistent; the hydraulic cylinder 41 is provided with a piston Rod 45, one end of the piston rod 45 is connected to the upper wedge seat 40; the upper end of the support seat 42 is fixedly combined with the hydraulic cylinder 41 by a pivot member 46, and the bottom is closely fitted with the platform 20, the pivot member 46 It can be adjusted according to the rising angle of the hydraulic cylinder 41 .

Please refer to FIGS. 4 to 9 , when the box girder A needs to be displaced and propelled, the wedge-shaped propulsion device 1 is arranged under the box girder A; the jack 3 is adjusted and lifted to support the box girder A; The piston rod 45 of the cylinder 41 pushes the upper wedge-shaped seat 40 to the wedge-shaped block 21, so that the lower inclined surface 44 is in contact with the upper inclined surface 22, the cushion block 30 and the buffer pad 43 are at a level, supporting The box girder A; the jack 3 is adjusted and lowered, the buffer pad 43 supports the box girder A, and the weight of the box girder A is used to press down and control the hydraulic cylinder 41 to support the upper wedge seat 40 , the upper wedge-shaped seat 40 slides down along the slope of the upper inclined surface 22, so that the box girder A is displaced and advanced, so as to reduce the construction cost, be easy to assemble, and improve the stability and safety of the displacement and advancement of the box girder A. Purpose.

Please refer to FIG. 10. Based on the above, when the embodiment of the present invention is assembled, the following steps are included:

(a). The wedge-shaped propulsion device 1 is arranged under the box beam A; (b). The jack 3 is adjusted and raised to support the box beam A; (c). The piston rod of the hydraulic cylinder 41 45 Push the upper wedge-shaped seat 40 to the wedge-shaped block 21, so that the lower inclined surface 44 is in contact with the upper inclined surface 22, the cushion block 30 and the buffer pad 43 are at a level, supporting the box beam A; (d). Adjusting and descending the jacking device 3, using the buffer pad 43 to support the box girder A, and using the weight of the box girder A to press down and control the hydraulic cylinder 41 to support the upper wedge-shaped seat 40, The upper wedge-shaped seat 40 slides down along the slope of the upper inclined surface 22, so that the box girder A is displaced and advanced; the above steps are repeated and repeated, so that the box girder A reaches the assembly construction position.

Through circuit control, the jack 3 and the hydraulic cylinder 41 are electrically connected to act synchronously. When the weight of the box beam A presses down and controls the hydraulic cylinder 41 to support the upper wedge seat 40, the upper wedge The seat 40 slides down along the slope of the upper slope 22 to make the box girder A move forward, so as to reduce the construction cost, facilitate assembly, and improve the stability and safety of the box girder A's displacement advancement.

Therefore, the present invention has the following advantages:

1. A plurality of wedge-type propulsion devices 1 are used to be arranged under the box girder A, and there is no need to set up tracks and temporary piers, and the wedge-type propulsion device 1 has a simple structure, which is convenient for the builder to assemble and move easily, which can reduce construction costs and reduce costs. working hours.

2. Use the piston rod 45 of the hydraulic cylinder 41 to push the upper wedge seat 40 onto the wedge block 21, so that the lower slope 44 is in contact with the upper slope 22, increasing the weight of the box beam A and pressing down bearing capacity and stability.

3. The weight of the box girder A pushes down and controls the hydraulic cylinder 41 to support the upper wedge seat 40, and the upper wedge seat 40 slides down along the slope of the upper slope 22, which can lift the box girder A to move forward stability and safety.

To sum up, the present invention can clearly achieve the expected functions and purposes, and the detailed description can enable those skilled in the art to implement accordingly. However, the above-mentioned embodiments are only used to illustrate the present invention, and all equivalent structures are included. The changes still do not depart from the scope of the present invention.

1: Wedge propulsion device 2: Base 20: Platform 21: Wedge block 22: Upper slope 3: Elevator 30: Spacer 4: Propulsion Mechanisms 40: Upper wedge seat 41: Hydraulic cylinder 42: Support seat 43: Buffer 44: Lower slope 45: Piston Rod 46:Pivot piece A: Box girder

FIG. 1 is an assembled front view of an embodiment of the present invention. FIG. 2 is a combined exploded view of an embodiment of the present invention. FIG. 3 is a combined top view of an embodiment of the present invention. FIG. 4 is a top view of the combination of the wedge-shaped propulsion device and the box girder according to the embodiment of the present invention. FIG. 5 is a schematic diagram (1) of the operation of the embodiment of the present invention. FIG. 6 is a schematic diagram (2) of the operation of the embodiment of the present invention. FIG. 7 is a schematic diagram (3) of the operation of the embodiment of the present invention. FIG. 8 is a schematic diagram (4) of the operation of the embodiment of the present invention. FIG. 9 is a schematic diagram of displacement advancement of a box girder according to an embodiment of the present invention. FIG. 10 is a construction flow chart of an embodiment of the present invention.

1: Wedge propulsion device

2: Base

20: Platform

21: Wedge block

22: Upper slope

3: Elevator

30: Spacer

4: Propulsion Mechanisms

40: Upper wedge seat

41: Hydraulic cylinder

42: Support seat

43: Buffer

44: Lower slope

45: Piston Rod

46:Pivot piece

Claims (8)

A wedge-shaped propulsion device for a bridge, comprising: a base, a top height device and a propulsion mechanism, wherein, there is a platform above the base, the platform is provided with a wedge-shaped block, and the wedge-shaped block is arranged on the On one side of the platform, the top surface forms an upper inclined surface, and the bottom surface is horizontally in close contact with the platform; the top of the lifter has a cushion block; the propulsion mechanism is arranged on the other side of the platform and has an upper wedge A type seat, a plurality of hydraulic cylinders and a support seat, the top surface of the upper wedge-shaped seat is provided with a buffer pad, and the bottom surface forms a lower inclined surface, and the angle of the lower inclined surface and the upper inclined surface is consistent; the hydraulic cylinder is provided with a piston rod , one end of the piston rod is connected to the upper wedge seat; the upper end of the support seat is fixedly combined with the hydraulic cylinder by a pivot piece, and the bottom is closely fitted with the platform. The wedge-shaped propulsion device for bridges as claimed in claim 1, wherein the base, the wedge-shaped block, the cushion block and the support seat can be made of cement concrete. The wedge-shaped propulsion device for bridges as claimed in claim 1, wherein the base, the wedge-shaped block, the spacer block and the support seat can be made of metal materials. The wedge-type propulsion device for bridges as claimed in claim 1, wherein the buffer pad can be made of rubber material. A wedge-shaped propulsion construction method for bridges, comprising the following steps: (a) disposing the wedge-shaped propulsion device under the box girder; (b) adjusting and lifting the top height device to support the box girder; (c) ).The piston rod of the hydraulic cylinder pushes the upper wedge-shaped seat to the wedge-shaped block, so that the lower inclined surface is in contact with the upper inclined surface, the cushion block and the buffer pad are at a level, supporting the box beam ; (d). Adjust and lower the top height device, bear against the box girder by the buffer pad, and use the weight of the box girder to press down and control the hydraulic cylinder to support the upper wedge-shaped seat, the upper wedge-shaped seat Slide down along the slope of the upper slope to make the box girder move forward. The wedge-shaped propulsion construction method for bridges as claimed in claim 5, wherein the wedge-shaped block and the cushion block can be made of cement concrete. The wedge-shaped propulsion construction method for bridges as claimed in claim 5, wherein the wedge-shaped block and the spacer block can be made of metal materials. The wedge-type propulsion construction method for bridges according to claim 5, wherein the buffer pad can be made of rubber material.

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