CN115522473A - A bridge pier making machine and its construction method - Google Patents

Abstract

The application provides a bridge high pier making machine and a construction method thereof, wherein the pier making machine comprises lattice columns, a self-lifting device and a truss platform, the lattice columns are distributed on the periphery of a bridge high pier in a rectangular mode and can be spliced in the vertical direction, the self-lifting device is arranged on the lattice columns, the truss platform is arranged on the self-lifting device, and the self-lifting device drives the truss platform to move up and down on the lattice columns; be provided with the cable suspension device on the truss platform, be connected with on the cable suspension device and pour the template, the cable suspension device is used for going up and down to pour the template, is provided with the construction stores pylon on the truss platform, and the construction stores pylon is used for the workman to pour the construction platform of template operation, and the top of truss platform is provided with planer-type loop wheel machine, and planer-type loop wheel machine can be along the walking of truss platform, accomplishes lifting by crane and transporting of reinforcing bar. The lattice type column is used as vertical bearing, the constructed pier column is not needed, the strength requirement of pier column concrete during lifting can be reduced, and the construction speed is increased.

Description

A bridge pier making machine and its construction method

technical field

The application relates to the technical field of bridge engineering, in particular to a high bridge pier making machine and a construction method thereof.

Background technique

With the advancement of urbanization, the development of cities is inseparable from highways and bridges, which has promoted the improvement of the construction level of highways and bridges. The increase of vehicles puts forward higher requirements on the quality of highway bridges, which increases the difficulty of construction of high piers of highway bridges to a certain extent. Doing a good job in the construction of high piers has become the top priority to ensure the quality of the project.

At present, methods such as overturning formwork, sliding formwork, and climbing formwork are usually used in the construction of high bridge piers. These construction methods mainly have the following deficiencies:

(1) For several construction methods, tower cranes or other cranes must be installed as vertical transportation equipment for materials.

(2) When the formwork is turned up every time by the overturning method, the construction safety risk is relatively large; due to the early demoulding time of the slipform construction, the appearance of the pier column needs to be smeared to achieve a relatively smooth appearance, and the verticality of the construction is not well controlled, and the section will be torsion And so on.

(3) These methods all use the constructed pier column as the supporting point, and the formwork can be lifted to continue segmental construction only after the concrete of the lower pier column reaches a certain strength and has bearing capacity, which limits the construction speed of the pier.

Contents of the invention

Aiming at the problems existing in the prior art, this application provides a bridge pier making machine and its construction method, which integrates vertical self-support and construction operation platform, has the ability of equipment self-lifting and lifting engineering materials, and can Accelerate the construction speed, and more effectively guarantee the construction safety and project quality.

In the first aspect, a kind of bridge high pier pier making machine of the present application adopts the following technical scheme:

A pier-making machine for high bridge piers, comprising a lattice column, a self-elevating device and a truss platform, the lattice columns are distributed in a rectangular shape around the high bridge pier, and can be spliced in the vertical direction, so The self-elevating device is arranged on the lattice column, the truss platform is arranged on the self-elevating device, and the self-elevating device drives the truss platform to move up and down on the lattice column; the truss platform is provided with a hanging device, the hanging device is connected with a pouring formwork, the hanging device is used for lifting the pouring formwork, the truss platform is provided with a construction hanger, and the construction hanger is used for the construction platform for workers to perform pouring formwork operations , the top of the truss platform is provided with a gantry crane, and the gantry crane can walk along the truss platform to complete the lifting and transportation of steel bars.

By adopting the above technical scheme, the lattice column and the truss platform form the main bearing system, and the hanging device, the construction hanger and the gantry crane form the construction operation system; the main bearing system bears the self-weight of the system, the construction operation system structure and the weight of equipment, The machine tool load of construction personnel, as well as live loads such as wind loads, are the main stress structures of the pier making machine; the vertical load does not need to rely on the completed pier columns, which can reduce the strength requirements of the pier column concrete during lifting and increase the construction speed; The construction operation system completes the construction of the high pier of the bridge; the self-elevating device can complete the vertical self-elevation of the pier machine, and there is no need to set up a tower crane to raise the pier machine.

The further technical solution of the present invention is that, the top of the truss platform is provided with guide rails, and the bottom of the gantry crane is rotatably provided with rollers, and the rollers roll on the guide rails.

The further technical solution of the present invention is as follows: an annular groove is formed on the roller, the section of the annular groove is trapezoidal, and the annular groove is compatible with the guide rail.

By adopting the above-mentioned technical scheme, it is convenient for the gantry crane to move on the truss platform to move materials such as steel bars.

A further technical solution of the present invention is provided that the hanging device includes an electric hoist, and the electric hoist is connected to the pouring formwork through a hook.

The further technical solution of the present invention is set as follows: the electric hoist can drive a group of pouring templates along the length direction of the truss platform to move, and drive the pouring templates to move along the length direction of the truss platform.

By adopting the above technical scheme, when the double-width bridge is being constructed, a set of pouring formworks can be moved and set, which reduces a set of pouring formworks, reduces the weight of the construction operation system, and reduces a certain cost.

The further technical scheme of the present invention is set as follows: the construction hanger includes a bracket, a protective net and an escalator, the bracket is fixed on the truss platform, one end of the protective net is hung on the bracket and is rotatably connected with the bracket, the The other end of the protective net is detachably fixed on the support, and the escalator is hung on the support.

A further technical solution of the present invention is provided that the self-elevating device is an electric lifting platform.

The further technical solution of the present invention is that the lattice columns and the truss platform are all spliced by single pieces.

By adopting the above technical scheme, the lattice column and the truss platform formed by splicing single elements are easy to build and easy to use.

In the second aspect, the construction method of a kind of bridge high pier pier making machine of the present application adopts the following technical scheme:

A construction method of a bridge high pier pier machine, comprising the steps of:

S1, according to the position of bridge high pier, build a kind of bridge high pier pier making machine as claimed in claim 1;

S2. Binding of steel bars for high bridge piers;

S3, after fixing the pouring formwork, carry out concrete pouring;

S4, after the concrete is solidified, the mold is withdrawn;

S5. After the lattice columns are spliced and raised, the truss platform is lifted as a whole;

S6. Steps S2, S3, S4 and S5 are repeated until the high pier of the bridge is completed.

The further technical solution of the present invention is set as follows: for the construction of double-width bridges, the hanging device can drive a group of pouring templates along the length direction of the truss platform to move in the length direction of the truss platform.

Compared with the prior art, the present application has the following beneficial effects:

The bridge pier making machine designed in the present invention integrates the vertical self-supporting and construction operation platform, has the ability of self-elevating equipment and lifting engineering materials, can speed up the construction speed, and more effectively guarantee the construction safety and engineering quality .

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present application;

Fig. 2 is the structural representation of gantry crane in the present application;

Fig. 3 is the side view of the present application;

Fig. 4 is the structural representation of hanging device in the present application;

Fig. 5 is the schematic diagram of process one of the present application;

Fig. 6 is a schematic diagram of the second process of the present application;

Fig. 7 is the schematic diagram of the application procedure three

Fig. 8 is the schematic diagram of the application process four

FIG. 9 is a schematic diagram of Step 5 of the present application.

Reference signs in the figure: 1. lattice column; 2. truss platform; 3. gantry crane; 4. construction hanger; 5. pouring formwork; 6. self-elevating device.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

The present application provides a bridge pier making machine.

Referring to Fig. 1 , the pier making machine for a high bridge pier includes a lattice column 1, a self-elevating device 6, a truss platform 2, a hanging device, a construction hanger 4 and a gantry crane 3.

Specifically, the lattice columns 1 are distributed in a rectangular shape around the high piers of the bridge, and they can be spliced and fixed in the vertical direction. The self-elevating device 6 corresponds to the lattice column 1 one by one, and the self-elevating device 6 is installed on the lattice column 1, and multiple self-elevating devices 6 crawl up and down and park on the lattice column 1 synchronously. The truss platform 2 is fixed on the outside of the self-elevating device 6 , and the self-elevating device 6 drives the truss platform 2 to move up and down on the lattice column 1 .

Lattice column 1 and truss platform 2 form the main load-bearing system, which is used to bear the system's own weight, construction operation system structure and equipment weight, construction personnel's machine tool load, and wind load and other live loads, and is the main force-bearing structure of the pier making machine . The vertical bearing formed by the lattice column 1, as a vertical force-bearing member, does not need to rely on the completed pier column, which can reduce the strength requirement of the pier column concrete during lifting and increase the construction speed.

In this embodiment, the lattice column 1 and the truss platform 2 are spliced and fixed by single pieces, which are easy to build and disassemble, and achieve the purpose of convenient use.

The hanging device is installed on the truss platform 2. The hanging device is used to connect with the pouring formwork 5 for pouring bridge piers. The hanging device is used to lift the pouring formwork 5 to lift the pouring formwork 5 to a suitable position, which is convenient for mold closing and concrete pouring . A construction hanger 4 is installed on the truss platform 2, and the construction hanger 4 is a construction platform for workers to perform pouring formwork 5 operations. At the same time, workers can enter the top of the pier from the construction hanger 4 to bind steel bars. A gantry crane 3 is installed on the top of the truss platform 2, and the gantry crane 3 is arranged along the width direction of the truss platform 2. The gantry crane 3 can walk along the truss platform 2 to complete lifting and transportation of steel bars.

The hanging device, the construction hanger 4 and the gantry crane 3 form a construction operation system. The construction operation system completes the construction work on the high bridge pier, which is convenient for the rapid construction of the bridge pier, and there is no need to set up other devices such as tower cranes to cooperate with the construction.

Referring to Fig. 2, in the present embodiment, guide rails are fixed on the top of the truss platform 2, and the guide rails are I-shaped steel rails. The gantry crane 3 is driven by an electric drive unit to walk on the guide rails. The gantry crane 3 is a prior art , without further elaboration here. The bottom of gantry crane 3 rotates and is equipped with roller, offers ring groove on the roller, and the section of ring groove is trapezoidal, and ring groove matches with the top of guide rail, and roller rolls on guide rail. The rollers and guide rails form a limit structure, which is convenient for the gantry crane 3 to move stably on the truss platform 2, and to move materials such as steel bars.

In addition, in order to improve the stability of the gantry crane 3, a limit structure located in the guide rail groove can be installed on the gantry crane 3. The limit structure is a rolling wheel structure, which reduces the gantry crane 3 walking on the guide rail. resistance, to further prevent the gantry crane 3 from breaking away from the guide rail.

In this embodiment, the construction hanger 4 includes a bracket, a protective net and an escalator.

Among them, the bracket is fixed on the truss platform 2, and the bracket forms a cuboid frame structure, and multi-layer steel plates and steel wire mesh are laid on the bracket. Binding steel bars. The protective net is installed on the side of the bracket away from the pier. The two ends of the protective net can be hung on the bracket. Of course, one end of the protective net can be hung on the bracket and connected with the bracket. The other end of the protective net can be detachable and fixed. on the stand. The upper and lower ends of the escalator are all hung on the steel wire mesh on the support, which is convenient for the installation of the escalator, and workers can walk between the upper and lower floors of the support through the escalator.

With reference to Fig. 3 and Fig. 4, hanging device comprises electric hoist, and electric hoist is wire rope electric hoist and chain electric hoist in the prior art, and the hook device on the electric hoist is connected with pouring formwork 5, and pouring formwork 5 is carried out up and down. lift.

The pier making machine in this embodiment is suitable for the processing of single-width bridges or double-width bridges, both of which can maximize the speed of construction.

For the processing of double-width bridges, the pouring formwork 5 corresponding to the bridge piers can be set on the truss platform 2. Such setting will cause the overall weight of the construction operation system to be too heavy and increase a certain cost.

In order to reduce the overall weight of the construction operation system, a group of pouring formwork 5 along the length direction of the truss platform 2 can be driven by an electric hoist to walk between two bridge piers. The weight of the operating system reduces certain costs.

In this embodiment, the self-elevating device 6 is an electric lifting platform, which is a prior art, and the electric lifting platform is driven by a motor to crawl on the lattice column 1 .

The bridge pier making machine designed in this embodiment integrates vertical self-support and construction operation platform, and has the ability of self-elevating equipment and lifting engineering materials, which can speed up construction and more effectively guarantee construction safety and engineering. quality.

The application also provides a construction method of the bridge high pier pier making machine.

The construction method of bridge high pier pier machine comprises the following steps:

S1. Determine the position of the high pier of the bridge according to the drawings, and build a pier making machine for the high pier of the bridge as described above on the peripheral side of the high pier of the bridge.

S2. Materials such as steel bars are hoisted by the gantry crane 3, and the steel bar binding operation is performed on the top of the high pier of the bridge.

S3. After the steel bar binding is completed, the pouring formwork 5 is moved to a suitable height through the hanging device, the pouring formwork 5 is clamped and fixed, and concrete is poured into the pouring formwork 5 .

S4. After the concrete is solidified, the mold is withdrawn.

S5. Carry out splicing and fixing to the top of the lattice column 1. After that, the self-elevating device 6 crawls on the lattice column 1 to drive the overall lifting of the truss platform 2 to prepare for the subsequent processing of high bridge piers.

S6. Steps S2, S3, S4 and S5 are repeated until the high pier of the bridge is completed.

The above construction methods are applicable to the construction of single-width bridges.

For the construction of double-width bridges, when one side of the bridge pier is poured, the other side of the bridge pier is bound with steel bars. After the completion of the pouring of the two sides of the bridge piers, the truss platform 2 is lifted by the self-elevating device 6 for subsequent Pouring operations until completion of the piers.

Specifically, the hanging device can drive a group of pouring formwork 5 along the length direction of the truss platform 2 to move in the length direction of the truss platform 2, and the construction method is as follows:

Referring to Fig. 5, process 1: pouring formwork 5 on the left bridge pier, closing the molds, and pouring concrete; performing reinforcement binding on the right bridge pier.

Referring to Fig. 6, process 2: after the concrete curing on the left reaches the conditions for removing the pouring formwork 5, a group of pouring formwork 5 is moved horizontally to the right pier.

Referring to Fig. 7, process three: the left bridge pier is bound with steel bars; the formwork 5 is placed on the right bridge pier, and the concrete is poured.

Referring to Fig. 8, process four: after the concrete curing on the right side meets the requirement of formwork removal for pouring formwork 5, the formwork is withdrawn, and a set of formwork is moved horizontally to the left pier.

Referring to Fig. 9, process five: the lattice column 1 is connected to the height, and the self-elevating device 6 drives the overall lifting of the truss platform 2; the next round of cyclical construction is carried out until the high pier of the bridge is completed.

The bridge pier making machine designed in the present invention integrates the vertical self-supporting and construction operation platform, has the ability of self-elevating equipment and lifting engineering materials, can speed up the construction speed, and more effectively guarantee the construction safety and engineering quality .

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (10)

1. A bridge pier making machine is characterized in that it comprises a lattice column (1), a self-elevating device (6) and a truss platform (2), and the lattice column (1) is distributed in a rectangular shape The peripheral side of the high pier of the bridge, and it can be spliced in the vertical direction, the self-elevating device (6) is arranged on the lattice column (1), and the truss platform (2) is arranged on the self-elevating device (6 ), the self-elevating device (6) drives the truss platform (2) to move up and down on the lattice column (1); the truss platform (2) is provided with a hanging device, and the hanging device The pouring formwork (5) is connected, the hanging device is used for lifting the pouring formwork (5), the truss platform (2) is provided with a construction hanger (4), and the construction hanger (4) is used for workers A construction platform for pouring formwork (5), the top of the truss platform (2) is provided with a gantry crane (3), and the gantry crane (3) can walk along the truss platform (2), completing Lifting and delivery of steel bars. 2. A bridge pier making machine according to claim 1, characterized in that guide rails are provided on the top of the truss platform (2), and rollers are provided on the bottom of the gantry crane (3) for rotation , the rollers roll on the rails. 3 . The pier making machine for high bridge piers according to claim 2 , wherein a ring groove is provided on the roller, the cross section of the ring groove is trapezoidal, and the ring groove is compatible with the guide rail. 4 . 4. The pier making machine for high bridge pier according to claim 1, characterized in that, the hanging device comprises an electric hoist, and the electric hoist is connected to the pouring formwork (5) through a hook. 5. A bridge pier making machine according to claim 4, characterized in that, the electric hoist can drive a group of pouring formwork (5) along the length direction of the truss platform (2) to move, driving the pouring formwork (5) move in the length direction of the truss platform (2). 6. A kind of bridge pier making machine according to claim 1, characterized in that, the construction hanger (4) comprises a support, a protective net and a handrail ladder, and the support is fixed on the truss platform (2) , one end of the protective net is hung on the bracket and is rotatably connected with the bracket, the other end of the protective net is detachably fixed on the bracket, and the escalator is hung on the bracket. 7. The pier making machine for high bridge pier according to claim 1, characterized in that, the self-elevating device (6) is an electric lifting platform. 8. The pier making machine for high bridge pier according to claim 1, characterized in that, the lattice column (1) and the truss platform (2) are all spliced by single pieces. 9. A construction method of a bridge high pier pier machine, characterized in that, comprising the steps: S1, according to the position of bridge high pier, build a kind of bridge high pier pier making machine as claimed in claim 1; S2. Binding of steel bars for high bridge piers; S3, after fixing the pouring formwork (5), carry out concrete pouring; S4, after the concrete is solidified, the mold is withdrawn; S5. After the lattice columns (1) are spliced and raised, the truss platform (2) is lifted as a whole; S6. Steps S2, S3, S4 and S5 are repeated until the high pier of the bridge is completed. 10. The construction method of a bridge high pier pier machine according to claim 9, characterized in that, for the construction of double-width bridges, the hanging device can drive a group of bridges along the length direction of the truss platform (2) The pouring formwork (5) moves in the length direction of the truss platform (2).

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