CN216230056U - Novel long-line-method segment prefabricated bridge - Google Patents

Abstract

The utility model discloses a novel long-line-method section prefabricated bridge, which comprises a movable end mould and a casting-substituted beam. In the using process, the end module assembling and mounting main assembly, the inner module assembling and mounting main assembly and the side module assembling and mounting main assembly are matched with the platform trolley and the beam moving trolley for use, so that a large number of templates do not need to be mounted in the using process, only the length of one prefabricated section needs to be laid, and after the beam body of the cast beam reaches the demolding strength, the platform trolley is adopted to move the movable bottom die until the movable bottom die reaches the position of the next section for repeated use, so that the problems that the existing common long-line method prefabrication proposed in the background technology occupies a large area, a large number of templates are needed in the long-line method prefabrication process, particularly the bottom die part causes template waste and the like are solved, the construction investment is reduced, the resource waste is avoided, and the using cost is greatly saved.

Description

Novel long-line-method segment prefabricated bridge

Technical Field

The utility model relates to a novel long-line-method section prefabricated bridge, in particular to the technical field of bridge construction industry.

Background

According to the development guidance of 'factory prefabrication, assembly construction and information management' in the field of national bridge engineering, the segment prefabricated and assembled highway bridge can be rapidly developed due to excellent bridge forming durability, and more countries or regions begin to use the segment prefabricated and assembled construction mode in a large range. Generally, the bridge construction by the segment prefabrication and assembly method refers to a bridge construction technology which mainly carries out segment prefabrication and assembly by taking the longitudinal direction as a main technology. With the development and maturity of the segment prefabrication method technology, bridge beam types tend to be more and more complicated, prefabrication methods are various, and segment prefabrication and splicing methods can be divided into a long line method and a short line method. The long line method is prefabricated according to the design linearity of the bridge, can better realize line type control, and is particularly suitable for bridges with high line type requirements such as continuous bridges, arch bridges, cable-stayed bridges and the like. When the long-line method is used for prefabricating, each section of the beam section is prefabricated in a matched mode, namely the end face of the prefabricated section at the previous section is used as an end mold of the next section, and deviation of the previous section can be adjusted in time through the next section, so that the deviation cannot be accumulated, the bridge forming line type can be well guaranteed, and the long-line method can be well applied. However, the existing common long-line method prefabrication occupies a large area, and has high requirements on pedestal foundations, precast beam equipment and the like, so that a large number of templates, particularly bottom mold parts, are required to be laid for a span length, the template waste is caused, and the cost is increased.

But it is big to have occupation place about the long line method prefabrication commonly used at present, and it is higher to requirements such as pedestal foundation, precast beam equipment, therefore long line method prefabrication technology needs a large amount of templates, and the length of a span need be laid to die block part especially, causes the waste of template from this, has improved the problem of cost, at chinese utility model patent publication no: CN 209584870U discloses a pedestal structure that is used for section is assembled to prefabricated multiple line type cantilever of long-line method, including pedestal base plate, pedestal bottom plate, case roof beam die block board and bearing structure, pedestal bottom plate sets up on the pedestal base, its characterized in that: the bottom die unit is formed by the supporting mechanism and the box girder bottom die plate supported by the supporting mechanism, the base bottom plate is provided with the bottom die units, and all the bottom die units form the long-line bottom die set. Although the utility model discloses an above-mentioned utility model discloses a plurality of die block units, all die block units constitute long line die block group, have reduced construction input and a large amount of engineering cost from this, but use the prefabricated method of segment length line, accomplish the construction back of engineering, constitute long line die block group by a plurality of die block units and can't carry out the secondary cycle and use, the waste of the solution template that still can't be fine from this increases use cost's problem.

But it is big to have occupation place about the long line method prefabrication commonly used at present, and it is higher to requirements such as pedestal foundation, precast beam equipment, therefore long line method prefabrication technology needs a large amount of templates, and the length of a span need be laid to die block part especially, causes the waste of template from this, has improved the problem of cost, at chinese utility model patent publication no: CN 112195781A discloses a method for long and short line method combined bidirectional matching prefabrication of a segmental precast bridge, which comprises the steps of firstly allocating box girder segments required to be prefabricated by a long line method and a short line method in the same prefabrication sequence according to bridge shapes, reserving a matched box girder segment for long and short line combined matching pouring at the middle position of the prefabrication sequence, prefabricating the long and short line methods from two ends of the prefabrication sequence to the middle direction respectively, comparing the line type of the segments prefabricated by the long line method and the line type of the segments prefabricated by the short line method with a design line type in each direction of a space coordinate axis to obtain the amount of deviation correction required after prefabrication by the long line method and the short line method, and placing measuring point coordinates of the two segments used for matching under the same coordinate system through a professional line type control technology to pour the matched box girder segment. The construction method has the advantages of short construction time and small occupied space, and is suitable for various bridge linear long and short line combination methods matched with the prefabricated section construction method. Although above-mentioned utility model has improved the practicality and has reduced the shared space of construction through the mode that the long and short line method combined together, but about the waste of template, the problem of cost is improved, still unable fine solution.

Disclosure of Invention

The utility model aims to solve the defects of the prior art, and provides a novel long-line-method section prefabricated bridge, so as to solve the problems that the existing common long-line-method prefabrication proposed in the background art occupies a large area and has high requirements on pedestal foundations, precast beam equipment and the like, so that a large number of templates, particularly bottom mold parts, are required to be laid for a span length, the templates are wasted, and the cost is increased.

In order to achieve the purpose, the utility model provides the following technical scheme: a novel long-line-method segment prefabricated bridge comprises a movable end die, a casting-replacing beam, a fixed end die, a movable inner die, a fixed bottom die, a movable side die, a movable bottom die, a platform trolley, a beam-moving trolley, a template, a support, an end die assembly installation assembly, a trolley temporary track, an inner die assembly installation assembly, a side die assembly installation assembly, an inner die support frame trolley and prefabricated segments; the fixed bottom die, the movable bottom die, the fixed end die, the movable side die, the movable inner die, the platform trolley and the beam moving trolley form a long-line prefabricating system.

Preferably, before a span segment is prefabricated on the long-line pedestal, a fixed bottom die is installed and assembled according to a design position, the fixed bottom die is installed to facilitate accurate positioning, and the length of the prefabricated segment is consistent with the length required by the design requirement; and sequentially assembling and installing components such as a movable side die, a movable inner die, a fixed end die, a platform trolley, a beam-moving trolley and the like of the main component.

Preferably, remove the end mould and close with the stiff end module and form the end mould system, the fixed die block that is provided with in the left and right sides under the roof beam is watered in the generation of fixed end mould, the fixed support that is provided with between the fixed die block of the left and right sides, the support passes through the bolted connection template, remove the direction removal of end mould to the fixed end mould to be connected with it, the fixed end mould is connected with removing the end mould to the end mould assembly installation assembly that forms the end mould system.

Preferably, the left and right sides that fixed die block and the replacement watered the roof beam is provided with the removal side form, remove the centre form and remove the direction removal of side form to remove the side form and remove the centre form combination and form side form assembly installation assembly, it adopts two sets of settings to remove the side form.

Preferably, the inner mold assembly installation assembly is provided with a fixed bottom mold, the fixed bottom mold is located on the left side and the right side of the lower portion of the casting beam, a movable bottom mold is arranged below the middle position of the casting beam, and the fixed bottom mold is connected with the movable bottom mold through a pin shaft.

Preferably, one side of removing the die block is provided with removes the centre form, it is connected with the beam of watering instead to remove the centre form, remove the die block, remove the side form, remove end mould, fixed die block and fixed end mould and all be provided with template and support, it is fixed (welding and bolted connection) to connect through two kinds of modes between template and the support, it can change according to the inside case room form of segment to remove the centre form, and different sections use different forms centre form to the on-the-spot beam type size of watering the beam according to the generation adjusts the location size of each part.

Preferably, the middle part of the downside of pouring the precast segment bottom terminal surface of the beam instead is provided with a movable bottom die, the left and right sides of the precast segment bottom terminal surface below is provided with a fixed bottom die, the downside of the movable bottom die is provided with a platform trolley, the left and right sides of the other terminal surface below of pouring the beam instead is fixedly provided with a fixed bottom die, the middle part of the other terminal surface below of pouring the beam instead is provided with a beam moving trolley, the beam moving trolley is provided with a moving mechanism for conveniently pouring the beam.

Preferably, the beam moving trolley and the platform trolley are matched with the trolley temporary track for use, the beam moving trolley and the platform trolley adopt trolleys with built-in oil cylinder driving pieces, the beam moving trolley is divided into an upper layer, a middle layer and a lower layer, and the beam moving trolley is controlled by oil cylinders built in the beam moving trolley and the platform trolley to move up and down, left and right and back and forth, so that the adjustment and demoulding of a beam body are mainly carried out.

A novel long-line-method segment prefabricated bridge comprises the following steps: the embodiment is illustrated by taking one of the prefabricated segments as an example:

firstly, before a span section is prefabricated on a long-line pedestal, the line type of the pedestal is consistent with the line type of the whole span section, and then a fixed bottom die is installed and assembled according to a design position, wherein the fixed bottom die is convenient to be accurately positioned, so that the length of the prefabricated section is consistent with the length required by the design requirement; and sequentially assembling and installing components such as a movable side die, a movable inner die, a fixed end die, a platform trolley, a beam-moving trolley and the like of the main component. After the assembly of the movable side die, the movable inner die, the fixed end die, the platform trolley, the beam-moving trolley and other parts is completed;

step two: at the moment, the formed reinforcement cage is moved to one side of the prefabricated section through the beam moving trolley, and the reinforcement cage is moved to the upper side of a pedestal of the prefabricated section by using an external gantry crane;

step three: utilize external portal crane with the steel reinforcement cage, place it on the pedestal of prefabricated segment section, adopt a plurality of, symmetrical hoisting point when the hoist and mount of steel reinforcement cage, can avoid the steel reinforcement cage to take place to warp from this, the both sides face of steel reinforcement cage all with the medial surface looks butt of removal side form this moment. The segment of the prefabricated segment at the moment is provided with two embedding surfaces, one surface is a natural matching surface formed by combining a movable side die and a fixed bottom die, and the other surface is provided with a movable end die so as to form a closed prefabricated segment box chamber;

step four: the end die assembling and mounting assembly, the inner die assembling and mounting assembly and the side die assembling and mounting assembly are combined and mounted;

step five: pouring concrete, wherein the pouring sequence is that the concrete is poured first and then the concrete is poured first, the concrete is poured first and then the concrete is poured second, the template support and the abutted seams must be checked between the poured concrete, after the current cast beam reaches the form removal strength, the movable end mould and the movable inner mould are moved backwards through the platform trolley until the preset position of the next section is reached, then the concrete is sequentially installed, the subsequent sections are sequentially poured until the beam reaches the hoisting strength, and then the concrete is transferred to the beam storage area;

step six: after the beam body of the modern pouring beam reaches the demolding strength, the movable bottom die is moved by the platform trolley until the movable bottom die reaches the position of the next segment, and the movable bottom die is reused.

The utility model provides a novel long-line-method section prefabricated bridge, which has the following beneficial effects:

1. the beam moving trolley and the platform trolley are matched with the temporary trolley track for use, the beam moving trolley and the platform trolley adopt trolleys with built-in oil cylinder driving pieces, the beam moving trolley is divided into an upper layer, a middle layer and a lower layer, and the beam moving trolley is controlled by oil cylinders built in the beam moving trolley and the platform trolley to move up and down, left and right and back and forth, so that the adjustment and demoulding of a beam body are mainly carried out. The platform trolley and the beam moving trolley are additionally arranged, so that the whole template can be separated from the prefabricated sections simultaneously during demoulding, and the template is prevented from deforming due to damaged section corners.

2. In the using process of the utility model, because the end die assembly installation assembly, the inner die assembly installation assembly and the side die assembly installation assembly are formed by combining the end die, the bottom die, the inner die and the like, and the end die assembly installation assembly, the inner die assembly installation assembly and the side die assembly installation assembly are matched with the platform trolley and the beam moving trolley for use, a large number of templates are not required to be installed when the end die assembly installation assembly, the inner die assembly installation assembly and the side die assembly installation assembly are used, only the length of a prefabricated section is required to be laid, after the beam body of the cast beam reaches the demolding strength, the platform trolley is adopted to move the bottom die until the bottom die is moved to the position of the next section for repeated use, thereby solving the problems that the existing common long-line method prefabrication proposed in the background technology occupies a large area, the long-line method prefabrication process requires a large number of templates, particularly the bottom die part, causes the waste of the templates and the like, and the construction investment is reduced, resource waste is avoided, and a large amount of use cost is saved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model without limiting the utility model in which:

FIG. 1 is a schematic structural view of a novel long-line-method segment precast bridge provided by the utility model;

FIG. 2 is a schematic structural view of a novel long-line-method segment precast bridge proposed by the utility model;

FIG. 3 is a schematic structural view of a section of a novel long-line-method prefabricated bridge, which is provided by the utility model;

FIG. 4 is a schematic structural view of a section of a novel long-line-method prefabricated bridge, which is provided by the utility model;

FIG. 5 is a schematic structural view of a section of a novel long-line-method prefabricated bridge, which is provided by the utility model;

FIG. 6 is a schematic structural view of a section of a novel long-line-method prefabricated bridge, which is provided by the utility model;

FIG. 7 is a schematic structural view of a section of a novel long-line-method prefabricated bridge, which is provided by the utility model;

FIG. 8 is a schematic view of an installation process of a novel long-line-method segment precast bridge according to the present invention;

FIG. 9 is a schematic view of an installation process of a novel long-line-method segment precast bridge according to the present invention;

FIG. 10 is a schematic view of an installation process of a novel long-line-method segment precast bridge according to the present invention;

in the figure: 1. moving the end mold; 2. pouring a beam instead; 3. fixing an end die; 4. moving the inner mold; 5. fixing the bottom die; 6. moving the side die; 7. moving the bottom die; 8. a platform trolley; 9. a beam moving trolley; 10. a template; 11. a support; 12. assembling and mounting the end modules to form a main assembly; 13. a trolley temporary track; 14. assembling and mounting the assembly of the inner mold; 15. assembling and mounting the assembly by the side mold; 17. an internal mold support frame trolley; 18. prefabricating a segment; 19. and (4) a reinforcement cage.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-10, the present invention provides the following technical solutions: the utility model discloses a novel long-line-method segmental precast bridge, which comprises a movable end mould 1, a casting-replacing beam 2, a fixed end mould 3, a movable inner mould 4, a fixed bottom mould 5, a movable side mould 6, a movable bottom mould 7, a platform trolley 8, a beam-moving trolley 9, a template 10, a support 11, an end mould assembly installation assembly 12, a trolley temporary track 13, an inner mould assembly installation assembly 14, a side mould assembly installation assembly 15, an inner mould support frame trolley 17 and a precast segment 18; the fixed bottom die 5, the movable bottom die 7, the fixed end die 3, the movable end die 1, the movable side die 6, the movable inner die 4, the platform trolley 8 and the beam moving trolley 9 form a long-line prefabricating system.

As shown in fig. 1 to 10, the embodiment provides a novel long-line-method segment prefabricated bridge, which is characterized in that: before prefabricating a span segment on a long-line pedestal, firstly, mounting and assembling a fixed bottom die 5 according to a design position, wherein the fixed bottom die 5 is convenient to accurately position, so that the length of the prefabricated segment is consistent with the length required by the design requirement; and sequentially assembling and installing the movable side die 6, the movable inner die 4, the fixed end die 3, the platform trolley, the beam-moving trolley 9 and other components of the main assembly.

As shown in fig. 1 to 10, the embodiment provides a novel long-line-method segment prefabricated bridge, which is characterized in that: remove end mould 1 and the combination of fixed end mould 3 and form end mould system, fixed end mould 3 replace the fixed die block 5 that is provided with in the left and right sides under the roof beam 2, the fixed support 11 that is provided with between the fixed die block 5 of the left and right sides, support 11 passes through bolted connection template 10, remove end mould 1 and remove to the direction of fixed end mould 3 to be connected with it, fixed end mould 3 is connected with removal end mould 1, and forms end mould system's end module group and pieces together installation assembly 12.

As shown in fig. 1 to 10, the embodiment provides a novel long-line-method segment prefabricated bridge, which is characterized in that: fixed die block 5 is provided with the removal side form 6 with the left and right sides of instead watering roof beam 2, remove centre form 4 and remove the direction removal of side form 6 to remove side form 6 and remove the combination of centre form 4 and form side form assembly installation assembly 15, remove side form 6 and adopt two sets of settings.

As shown in fig. 1 to 10, the embodiment provides a novel long-line-method segment prefabricated bridge, which is characterized in that: the inner mould assembling and mounting assembly 14 is provided with a fixed bottom mould 5, the fixed bottom mould 5 is positioned at the left side and the right side under the replacement pouring beam 2, a movable bottom mould 7 is arranged under the middle position of the replacement pouring beam 2, and the fixed bottom mould 5 is connected with the movable bottom mould 7 through a pin shaft.

As shown in fig. 1 to 10, the embodiment provides a novel long-line-method segment prefabricated bridge, which is characterized in that: remove one side of die block 7 and be provided with removal centre form 4, remove centre form 4 and replace and water roof beam 2 and be connected, remove centre form 4, remove die block 7, remove side form 6, remove end mould 1, fixed die block 5 and fixed end mould 3 and all be provided with template 10 and support 11, be connected fixedly (welding and bolted connection) through two kinds of modes between template 10 and the support 11, it can change according to the inside case room form of segment to remove centre form 4, and different sections use different form centre forms to on-the-spot basis is replaced the beam type size of watering roof beam 2 and is adjusted the positioning dimension of each part.

As shown in fig. 1 to 10, the embodiment provides a novel long-line-method segment prefabricated bridge, which is characterized in that: the middle part of the downside of the prefabricated section 18 bottom end face of the beam 2 is replaced with a movable bottom die 7, the left and right sides of the bottom end face below of the prefabricated section 18 is provided with a fixed bottom die 5, the downside of the movable bottom die 7 is provided with a platform trolley 8, the left and right sides of the other end face below of the beam 2 is replaced with the fixed bottom die 5, the middle part of the other end face below of the beam 2 is replaced with a beam moving trolley 9, the beam moving trolley 9 is arranged to facilitate the movement of the beam.

As shown in fig. 1 to 10, the embodiment provides a novel long-line-method segment prefabricated bridge, which is characterized in that: the beam moving trolley 9 and the platform trolley 8 are matched with the trolley temporary track 13 for use, the beam moving trolley 9 and the platform trolley 8 are trolleys with built-in oil cylinder driving pieces, the beam moving trolley 9 is divided into an upper layer, a middle layer and a lower layer, and the beam moving trolley 9 and the platform trolley 8 are controlled by built-in oil cylinders to move up and down, left and right and front and back, so that the beam body is adjusted and demoulded.

A novel long-line-method segment prefabricated bridge comprises the following steps: the embodiment is illustrated by taking one of the prefabricated segments as an example:

firstly, before a span section is prefabricated on a long-line pedestal, the line type of the pedestal is consistent with the line type of the whole span section, then a fixed bottom die 5 is installed and assembled according to a design position, the installation of the fixed bottom die 5 is convenient for accurate positioning, and the length of the prefabricated section is consistent with the length required by the design requirement; and sequentially assembling and installing the movable side die 6, the movable inner die 4, the fixed end die 3, the platform trolley, the beam-moving trolley 9 and other components of the main assembly. After the assembly of the movable side die 6, the movable inner die 4, the fixed end die 3, the platform trolley, the beam moving trolley 9 and the like is finished;

step two: at the moment, the formed reinforcement cage 19 is moved to one side of the prefabricated section 18 through the beam moving trolley 9, and at the moment, the reinforcement cage 19 is moved to the upper side of a pedestal of the prefabricated section 18 by using an external gantry crane;

step three: the steel reinforcement cage 19 is placed on a pedestal of the prefabricated section 18 by utilizing an external gantry crane, a plurality of symmetrical hoisting points are adopted when the steel reinforcement cage 19 is hoisted, so that the steel reinforcement cage can be prevented from deforming, and both side surfaces of the steel reinforcement cage 19 are abutted against the inner side surface of the movable side mold 6. The segment of the prefabricated segment 18 at this time has two embedded surfaces, one surface is a natural matching surface formed by combining a movable side die and a fixed bottom die 5, and the other surface is provided with a movable end die 1, so that a closed prefabricated segment box chamber is formed;

step four: the end module assembling and mounting assembly 12, the inner module assembling and mounting assembly 14 and the side module assembling and mounting assembly 15 are combined and mounted;

step five: pouring concrete, wherein the pouring sequence is that the concrete is poured first and then the concrete is poured first, the concrete is poured firstly, the formwork support and the abutted seams must be checked between the poured concrete, after the current poured beam reaches the form removal strength, the movable end formwork 1 and the movable inner formwork 4 are moved backwards through the platform trolley 8 until the current poured beam reaches the preset position of the next section, then the current poured beam is sequentially installed, the subsequent sections are sequentially poured until the beam reaches the hoisting strength, and then the beam is transferred to the beam storage area;

step six: after the beam body of the modern pouring beam 2 reaches the demolding strength, the movable bottom die 7 is moved by the platform trolley 8 until the movable bottom die reaches the position of the next segment for repeated use.

The utility model has the following use process: the beam moving trolley 9 and the platform trolley 8 are matched with the trolley temporary track 13 for use, the beam moving trolley 9 and the platform trolley 8 are trolleys with built-in oil cylinder driving pieces, the beam moving trolley 9 is divided into an upper layer, a middle layer and a lower layer, and the beam moving trolley 9 and the platform trolley 8 are controlled by built-in oil cylinders to move up and down, left and right and front and back, so that the beam body is adjusted and demoulded. The platform trolley and the beam moving trolley are additionally arranged, so that the whole template can be separated from the prefabricated sections simultaneously during demoulding, and the template is prevented from deforming due to damaged section corners. In the using process of the utility model, because the end die assembly installation assembly 12, the inner die assembly installation assembly 14 and the side die assembly installation assembly 15 are formed by combining the end die, the bottom die, the inner die and the like, and the end die assembly installation assembly 12, the inner die assembly installation assembly 14 and the side die assembly installation assembly 15 are matched with the platform trolley and the beam moving trolley 9 for use, a large number of templates are not required to be installed when the beam is used, only the length of a prefabricated section is required to be laid, and after the beam body of the pouring beam 2 reaches the demolding strength, the platform trolley 8 is adopted to move the bottom die 7 until the bottom die reaches the position of the next section for repeated use, thereby solving the problems that the prior common long-line method prefabrication proposed in the background technology occupies a large area, a large number of templates are required by the long-line method prefabrication process, particularly the bottom die part causes template waste and the like, therefore, the construction investment is reduced, the resource waste is avoided, and a large amount of use cost is saved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A novel long-line-method segmental precast bridge comprises a movable end die (1), a pouring beam (2), a fixed end die (3), a movable inner die (4), a fixed bottom die (5), a movable side die (6), a movable bottom die (7), a platform trolley (8), a beam moving trolley (9), a template (10), a support (11), an end die assembly installation assembly (12), a trolley temporary track (13), an inner die assembly installation assembly (14), a side die assembly installation assembly (15), an inner die support frame trolley (17) and a precast segment (18); the method is characterized in that: the long-line-method prefabricating system is composed of a fixed bottom die (5), a movable bottom die (7), a fixed end die (3), a movable end die (1), a movable side die (6), a movable inner die (4), a platform trolley (8) and a movable beam trolley (9), the movable end die (1) and the fixed end die (3) are combined to form an end die system, the fixed end die (3) is connected with the movable end die (1) and forms an end die assembly installation assembly (12) of the end die system, the fixed bottom die (5) and the left and right sides of a pouring beam (2) are provided with the movable side die (6), the movable inner die (4) moves towards the direction of the movable side die (6), the movable side die (6) and the movable inner die (4) are combined to form a side die assembly installation assembly (15), the movable side die (6) adopts two sets of settings, the movable beam trolley (9) and the platform trolley (8) are matched with a temporary trolley track (13), move roof beam dolly (9) and platform dolly (8) and all adopt the dolly of built-in hydro-cylinder driving piece, centre form assembly installation assembly (14) are provided with fixed die block (5), fixed die block (5) are located and water the left and right sides under roof beam (2) instead, water and be provided with under roof beam (2) intermediate position instead and remove die block (7), fixed die block (5) round pin hub connection removes die block (7).

2. Novel long-line method section prefabricated bridge according to claim 1, characterized in that: fixed die block (5) are fixedly provided with in the left and right sides under fixed end form (3) the generation of watering roof beam (2), the fixed support (11) that is provided with between the fixed die block (5) of the left and right sides, support (11) are through bolted connection template (10).

3. The novel long-line-method segment prefabricated bridge according to claim 1, is characterized in that: one side of removing die block (7) is provided with removes centre form (4), it is connected with replacing to water roof beam (2) to remove centre form (4), remove die block (7), remove side form (6), remove end mould (1), fixed die block (5) and fixed end mould (3) all are provided with template (10) and support (11), be connected fixedly through welding and bolted connection two kinds of modes between template (10) and support (11), it changes according to the inside case room form of segment to remove centre form (4), and different sections use different forms centre form to on-the-spot according to replacing the beam type size of watering roof beam (2) to adjust the location size of each part.

4. The novel long-line-method segment prefabricated bridge according to claim 1, is characterized in that: the utility model discloses a roof beam structure, including roof beam (2), prefabricated section (18) of building-up beam, it is provided with removal die block (7) to replace the middle part of the downside of watering roof beam (2) prefabricated section (18) bottom terminal surface, the left and right sides of prefabricated section (18) bottom terminal surface below is provided with fixed die block (5), the downside of removing die block (7) is provided with platform dolly (8), replace the left and right sides of watering another terminal surface below of roof beam (2) fixed being provided with fixed die block (5), the middle part of another terminal surface below of watering roof beam (2) is provided with moves roof beam dolly (9).

5. The novel long-line-method segment prefabricated bridge according to claim 1, is characterized in that: the beam moving trolley (9) is divided into an upper layer, a middle layer and a lower layer, and is controlled by an oil cylinder arranged in the beam moving trolley (9) and the platform trolley (8) to move up and down, left and right and back and forth, so that the adjustment and demoulding of the beam body of the casting-substituted beam (2) are mainly performed.

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