CN217053079U - Movable formwork system capable of moving construction back and forth - Google Patents

Abstract

The utility model relates to a cast-in-place box girder construction equipment field, in particular to but moving die carrier system of back-and-forth movement construction, including main frame, pier side bracket and aversion platform truck, pier side bracket is including setting up in the crossbeam of pier side, the crossbeam includes a plurality of butt joint's crossbeam festival section, the main frame top sets up die block template, side form board and edge of a wing template, the edge of a wing template with set up to articulated the connection between the side form board. Partial cross beam sections can be detached according to actual conditions, the flange templates and the side templates rotate relatively, the overall width of the die sets is reduced, the parallel station positions of the two die sets are met, after the construction of the last span is completed, the former path of the die sets can be returned to the initial position to be disassembled, transported or continue to be constructed in the other direction, the process of disassembling, transporting and reassembling the die sets in the last span is reduced, the advancing and retreating movement of the die sets is achieved, and the construction period and the construction cost are correspondingly reduced.

Description

Movable formwork system capable of moving construction back and forth

Technical Field

The utility model relates to a cast-in-place box girder construction equipment field, in particular to movable mould frame system that can construct around.

Background

The movable formwork is a construction machine which is provided with a formwork and uses a bearing platform or a pier column as a support to cast a bridge in place, and is widely applied to the construction of continuous beams of highway bridges and railway bridges.

The existing descending type movable formwork generally comprises a main framework, a pier-side bracket, a shifting trolley and the like, wherein the main framework comprises a main beam and a guide beam which are longitudinally connected, the main beam and the guide beam respectively comprise two half-width beams which are longitudinally bilaterally symmetrical, the two half-width beams are connected through a bottom die truss, a bottom die plate is arranged at the top of the bottom die truss, side die plates are connected to two sides of the bottom die plate, a flange die plate is arranged at the top of each side die plate, a supporting system comprising a plurality of supporting rods is arranged on the outer sides of the side die plates and the flange die plate, and is used for adjusting the shape and size of a forming space of the top die plate of the main beam, the shifting trolley is arranged on the pier-side bracket and is provided with a longitudinal shifting oil cylinder and a transverse shifting oil cylinder, the transverse shifting oil cylinder is used for controlling the opening and closing states of the left half-width beam and the right half-width beams of the main framework, so as to realize the opening and closing control of the movable formwork, and the longitudinal shifting oil cylinder is used for controlling the movement of the whole machine along the construction direction. After the existing descending movable formwork is assembled, the width of an opening and closing mould is fixed, in order to meet the use requirement of the existing double-width cast-in-place box girder bridge, the gap between two half-width cast-in-place box girders is small, and the movable formwork needs to be partially positioned between the two half-width cast-in-place box girders, so that the parallel operation of two sets of movable formworks cannot be met.

Therefore, a technical scheme is urgently needed at present to solve the technical problems that the existing movable formwork can only carry out one-way construction, and cannot meet the requirement that two movable formworks stand side by side in the transverse direction, so that the construction period is prolonged, and the construction cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the movable formwork system capable of moving back and forth for construction is provided, aiming at the technical problems that the existing movable formwork can only carry out one-way construction and cannot meet the requirements that two movable formworks can be horizontally arranged side by side to stand, so that the construction period is prolonged and the construction cost is increased.

In order to realize the purpose, the utility model discloses a technical scheme be:

the utility model provides a moving die carrier system of back-and-forth movement construction, includes main frame, pier side bracket and aversion platform truck, pier side bracket is including setting up in the crossbeam of pier side, the crossbeam includes a plurality of butt joint's crossbeam sections, the main frame top sets up die block template, side form board and edge of a wing template, edge of a wing template with set up to articulated the connection between the side form board.

The utility model relates to a movable mould frame system capable of moving construction back and forth, which can remove partial cross beam segments according to actual conditions by arranging the cross beam of the bracket beside the pier into a multi-segment combined structure, thereby reducing the whole width of the mould frame, meanwhile, the flange templates and the side templates are hinged, so that the flange templates and the side templates can be relatively rotated, the overall width of the die carrier is further reduced, so as to meet the parallel station position of the two sets of die sets, the two sets of die sets in the construction of the double-width cast-in-situ box girder bridge can be arranged in parallel station position in the moving process, after the construction of the last span is completed, the original path of the formwork can be returned to the initial position for dismounting, transferring or continuing to carry out construction in the other direction, the process of dismounting, transferring and reassembling the formwork in the last span is reduced, the forward and backward movement of the formwork is realized, and the construction period and the construction cost are correspondingly reduced.

As the preferred scheme of the utility model, the crossbeam bottom sets up the bracing, the bracing includes a plurality of butt joint's vaulting pole segment section.

As the preferred scheme of the utility model, die block template below sets up a plurality of die block trusses, each the die block truss includes two sections truss segments at least, and is adjacent can dismantle the connection between the truss segment.

As the utility model discloses a preferred scheme, the die block template with set up to articulated the connection between the side form, the die block template includes a plurality of template pieces, and is adjacent set up to articulated the connection between the template piece.

As the utility model discloses a preferred scheme, it indulges the hydro-cylinder to be provided with on the aversion platform truck to the setting is used for the installation indulge forward installation position and the reverse installation position of moving the hydro-cylinder.

As the utility model discloses an optimal scheme, the main frame top sets up supplementary landing leg, supplementary landing leg supports in waiting to water the mound top or has watered the case roof beam top through supporting mechanism, supplementary landing leg is through hanging the mechanism connection the main frame, it includes at least one in reinforcing bar, the stand to hang the mechanism, the stand sets up the reducing section along vertical middle part, reducing section both ends set up the extension section.

As the preferred scheme of the utility model, the main frame includes girder and nose girder, the mutual symmetry of the vertical both ends structure of girder can be connected respectively the nose girder. The adjustment of the two construction directions of the die carrier is realized only by connecting the guide beam with the front end or the tail end of the main beam according to actual conditions, and the process of disassembling and reassembling the die carrier when the construction direction is changed is reduced.

As the utility model discloses a preferred scheme, the girder with set up to articulated limit structure between the nose girder, the nose girder includes a plurality of butt joint's nose girder segment section, all set up at least one articulated limit structure between the nose girder segment section.

As the utility model discloses an optimal scheme still waters the region including setting up in the back of first span beam abutment, water regional intercommunication ground after and assemble the place, the abutment with it sets up landing leg mechanism respectively to assemble the place.

As the preferred scheme of the utility model, landing leg mechanism includes the crossbeam of pier side bracket. The cross beam of the pier-side bracket is applied to an assembly field to support the die carrier, so that a mechanism for independently preparing the die carrier in the assembly field is reduced, and the equipment cost required by bidirectional construction of advancing and retreating the die carrier is reduced.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the cross beam of the pier-side bracket is of a multi-section combined structure, so that partial cross beam sections can be removed according to actual conditions, and the overall width of the die carrier is reduced; the flange template and the side template are hinged, so that the flange template and the side template can be relatively rotated, and the overall width of the die frame is further reduced; two sets of die carriers in the construction of the double-width cast-in-place box girder bridge can be arranged side by side in the moving process, after the construction of the last span is completed, the former way of the die carrier can be returned to the initial position for dismounting, mounting and transferring or the construction in the other direction is continued, the process of dismounting, mounting and transferring the die carrier and reassembling the die carrier in the last span is reduced, the forward and backward movement of the die carrier is realized, and the construction period and the construction cost are correspondingly reduced.

Drawings

Fig. 1 is a schematic structural view of the pier side bracket of the present invention;

FIG. 2 is a schematic view of the structure of the main beam of the present invention on the pier side bracket;

FIG. 3 is a schematic structural view of the auxiliary support leg hanging guide beam of the present invention;

FIG. 4 is a schematic structural diagram I of two sets of mold bases in the present invention in parallel standing positions;

FIG. 5 is a schematic structural diagram II of two sets of mold frames in parallel standing positions in the present invention;

FIG. 6 is a schematic structural view of a bridge abutment with a reserved post-cast area;

FIG. 7 is a schematic structural view of a construction site of the present invention;

fig. 8 is a structural schematic view of the moving formwork system of the present embodiment assembling the first sectional beam;

fig. 9 is a schematic structural view of the assembled main frame of the present invention;

fig. 10 is a schematic structural view of the movable formwork system located at the first-span beam-making position in the present invention.

Icon:

1-main frame, 11-main beam, 12-guide beam, 121-guide beam segment, 2-pier side bracket, 21-cross beam segment, 22-brace segment, 3-shift trolley, 41-bottom die template, 411-template block, 42-side template, 43-flange template, 5-bottom die truss, 51-truss segment, 6-auxiliary support leg, 61-supporting mechanism, 62-hanging mechanism, 621-reinforcing steel bar, 622-upright post, 6221-reducing section, 6222-extending section, 7-bridge abutment, 71-post-pouring area, 72-splicing site, 8-support leg mechanism and 9-pier.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Example 1

As shown in fig. 1 to fig. 10, in this embodiment, the construction of a box girder of a certain double-width cast-in-place box girder bridge is taken as an example for explanation, the cast-in-place box girder is mainly located in a strongly weathered argillaceous sandstone area, part of the cast-in-place box girder is located in a loose covering layer, a hoisting device cannot reach the cast-in-place box girder, construction conditions are limited, construction difficulty is high, a pier 9 is a vase-type single-column pier, the height is high, a bearing platform is located below the water level, the maximum cross slope and the longitudinal slope of the cast-in-place box girder are 5%, a construction line has a curve, the minimum curve radius is 700m, the central line of the box girder is offset, first-span construction needs to be located at a bridge abutment 7, construction of the cast-in-place box girder needs to be performed from the bridge abutment 7 along two longitudinal directions of the bridge, the pier in front of the bridge abutment 7 is high, the gradient of a roadbed is large, the span is large, the weight of a movable formwork is large number of components, the structure is complex, assembly requirements are high, and the construction interference factors are many. The conventional treatment construction mode is that multiple types and a large number of hoisting devices are used, a high-position assembling support is erected at a first span beam making position, then a movable formwork is assembled, the step-by-step span cast-in-place box beam construction is carried out, the construction is difficult, the construction period is long, and the risk factors are more, after the last span construction is finished, the movable formwork needs to be integrally disassembled, the movable formwork is transported to a bridge abutment 7, the high-position assembling support in the other direction is rebuilt, during the double-width simultaneous construction, the movable formwork is limited in the whole width, and two sets of movable formworks are required to be subjected to staggered construction in the advancing direction.

The embodiment provides a movable formwork system capable of moving construction back and forth, which can enable two sets of formwork to be parallel in standing position without mutual interference by changing the structure of the formwork, so that the longitudinal forward and backward movement of the formwork can be realized, and structural support is provided for the bidirectional construction of a double-width cast-in-place box girder and the backward recovery and steering construction of the formwork.

The movable formwork system capable of moving construction back and forth in the embodiment specifically comprises a main frame 1, a pier side bracket 2 and a shifting trolley 3, the pier side bracket 2 comprises a cross beam arranged on the side of the pier 9, the cross beam comprises a plurality of cross beam sections 21 which are in butt joint connection, a bottom die plate 41, a side die plate 42 and a flange die plate 43 are arranged above the main frame 1, the flange die plate 43 is hinged with the side die plate 42, the bottom die template 41 is hinged to the side die plates 42, the bottom die template 41 comprises a plurality of template blocks 411, the adjacent template blocks 411 are hinged to each other, the bottom die template further comprises a post-pouring area 71 arranged on the first-span bridge abutment 7, the post-pouring area 71 is a groove-shaped channel reserved during the construction of the bridge abutment 7, the post-cast area 71 is communicated with a ground assembling field 72, and the abutment 7 and the assembling field 72 are respectively provided with a supporting leg mechanism 8.

As shown in fig. 7, in the movable formwork system capable of moving forward and backward for construction according to the embodiment, when forward construction is required, formwork assembly is performed at an assembly site 72, the formwork is moved towards the pier 9 side and passes through a post-cast area 71 to be installed at a first span girder-making position, and construction of a span-by-span cast-in-place box girder is performed; after the end span construction is finished, moving the formwork towards the abutment 7 side, and continuously moving the formwork to pass through a post-pouring area 71 to enter an assembling field 72 for recycling or matching the construction direction for structure adjustment; in the backward moving process, before the upper die frame and the other upper die frame are arranged in parallel, partial beam sections 21 are split, the flange templates 43 and the side templates 42 are turned over relatively, the whole width of the die frames is reduced, the backward moving die frame set is split and then kept in an asymmetric die opening state, the die frame set is kept in a die closing state, so that the two die frames are not interfered with each other when arranged in parallel in the station, the backward moving die frame is allowed to smoothly move backward, and the other die frame set can be constructed normally forward.

Preferably, as shown in fig. 1, the bottom of the cross beam is provided with an inclined strut, the inclined strut is provided to include a plurality of brace segments 22 in butt joint, in this embodiment, when the formwork assembly and recovery are performed in the assembly field 72, the cross beam with the inclined strut removed is provided as the support leg mechanism 8, a pivot is provided for the formwork assembly and recovery in the assembly field 72, the cost for separately preparing the support leg mechanism 8 is reduced, the matching relationship between the trolley 3 on the cross beam and the formwork is better, and the whole formwork can be more easily moved.

Preferably, the main frame 1 includes a main beam 11 and a guide beam 12, the longitudinal two end structures of the main beam 11 are symmetrical to each other and can be respectively connected to the guide beam 12, and when the formwork construction direction is adjusted, the forward and backward directions of the formwork construction can be adjusted only by changing the connection position of the guide beam 12.

Preferably, the bottom die truss 5 on the main girder 11 is configured to include two truss segments 51, and adjacent truss segments 51 are detachably connected. The bottom die truss 5 can be detached according to actual conditions, and the transverse width of the die frame is further reduced.

Preferably, the shifting trolley 3 is provided with a longitudinal shifting oil cylinder and a forward installation position and a reverse installation position for installing the longitudinal shifting oil cylinder. When the machine moves forwards, the longitudinal moving oil cylinder is arranged on the forward mounting position and applies forward moving thrust to the whole machine, when the machine moves backwards, the longitudinal moving oil cylinder is arranged on the reverse mounting position and applies forward moving thrust to the whole machine in the other direction, and the forward mounting position and the reverse mounting position are a plurality of connecting holes symmetrically arranged on the shifting trolley 3 and can be in bolt connection with the longitudinal moving oil cylinder.

Preferably, as shown in fig. 3, an auxiliary leg 6 is arranged at the top of the main frame 1, the auxiliary leg 6 is supported on the top of a pier to be poured or the top of a poured box girder through a supporting mechanism 61, the auxiliary leg 6 is connected with the main frame 1 through a hanging mechanism 62, the hanging mechanism 62 comprises at least one of a steel bar 621 and a vertical column 622, the vertical column 622 is provided with a reducing section 6221 along the vertical middle part, and extension sections 6222 are arranged at two ends of the reducing section 6221. The auxiliary supporting legs 6 are used for suspending the main frame 1, when the formwork is constructed forwards, the auxiliary supporting legs 6 are supported at the top of a pier to be cast, and when the formwork retreats, the auxiliary supporting legs 6 are supported at the top of a poured box girder, as shown in fig. 4 and 5, when two sets of formwork stand side by side, the reducing section 6221 in the middle of the upright column 622 forming the hanging mechanism 62 is small in cross section and can stably penetrate through a gap between the two formwork, and the smooth proceeding of the advancing, retreating and side by side station moving process of the movable formwork system is ensured.

Example 2

As shown in fig. 9 to 10, the structure of the movable formwork system capable of moving forward and backward for construction according to the present embodiment is the same as that of embodiment 1, except that: the main beam 11 with set up to articulated limit structure between the nose girder 12, the nose girder 12 sets up to including a plurality of butt joint's nose girder segment 121, and the nose girder 121 middle part sets up an articulated limit structure.

The movable formwork system capable of moving construction back and forth of the embodiment is characterized in that two hinged limiting structures are arranged on the main framework 1, so that the included angle of the guide beam 12 and the main beam 11 can be adjusted relatively, the angle of the guide beam 12 can be adjusted, and the formwork can adapt to curves in the advancing and retreating processes of actual construction.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides a movable mould frame system of back-and-forth movement construction, includes main frame (1), pier side bracket (2) and aversion platform truck (3), its characterized in that, pier side bracket (2) are including setting up in the crossbeam of pier (9) side, the crossbeam includes a plurality of butt joint's crossbeam section (21), main frame (1) top sets up die block template (41), side form board (42) and edge of a wing template (43), edge of a wing template (43) with set up to articulated the connection between side form board (42).

2. The mobile formwork system capable of moving construction back and forth as claimed in claim 1, wherein the bottom of the beam is provided with a diagonal brace, and the diagonal brace comprises a plurality of brace segments (22) connected in a butt joint manner.

3. The movable formwork system capable of moving back and forth for construction according to claim 1, wherein a plurality of bottom formwork trusses (5) are arranged below the bottom formwork (41), each bottom formwork truss (5) at least comprises two truss segments (51), and adjacent truss segments (51) are detachably connected.

4. The moving formwork system capable of moving forward and backward for construction as claimed in claim 1, wherein the bottom formwork (41) and the side formwork (42) are configured to be hingedly connected, the bottom formwork (41) comprises a plurality of formwork blocks (411), and adjacent formwork blocks (411) are configured to be hingedly connected.

5. The movable formwork system capable of moving construction back and forth according to claim 1, wherein the displacement trolley (3) is provided with a longitudinal displacement cylinder, and a forward installation position and a reverse installation position for installing the longitudinal displacement cylinder are provided.

6. The movable formwork system capable of moving back and forth for construction is characterized in that an auxiliary supporting leg (6) is arranged at the top of the main frame (1), the auxiliary supporting leg (6) is supported on the top of a pier to be poured or the top of a poured box girder through a supporting mechanism (61), the auxiliary supporting leg (6) is connected with the main frame (1) through a hanging mechanism (62), the hanging mechanism (62) comprises at least one of a steel bar (621) and a vertical column (622), the vertical column (622) is provided with a reducing section (6221) along the vertical middle part, and extension sections (6222) are arranged at two ends of the reducing section (6221).

7. The mobile formwork system capable of moving construction forward and backward as claimed in any one of claims 1 to 6, wherein the main frame (1) comprises a main beam (11) and a guide beam (12), and the longitudinal ends of the main beam (11) are structurally symmetrical to each other and can be respectively connected with the guide beam (12).

8. The movable formwork system capable of moving construction forwards and backwards as claimed in claim 7, wherein a hinge limiting structure is arranged between the main beam (11) and the guide beam (12), the guide beam (12) comprises a plurality of guide beam sections (121) which are connected in a butt joint mode, and at least one hinge limiting structure is arranged between all the guide beam sections (121).

9. The movable formwork system capable of moving construction forwards and backwards as claimed in claim 2, further comprising a post-pouring area (71) arranged on the first-span beam bridge abutment (7), wherein the post-pouring area (71) is communicated with a ground assembly field (72), and the bridge abutment (7) and the assembly field (72) are respectively provided with a support leg mechanism (8).

10. A mobile formwork system for forward and backward moving construction according to claim 9, wherein said leg means (8) comprises a beam of said pier side bracket (2).

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