Novel assembly type formwork for pile-slab bridge

Abstract

The utility model relates to the technical field of pile-slab bridge formworks, in particular to a novel assembly type formwork for a pile-slab bridge, which comprises suspension structures fixedly mounted on pile upper cross beams on the left side and the right side respectively, a plurality of piles are supported at the bottoms of the pile upper cross beams respectively, and supporting structures are placed on the suspension structures on the left side and the right side. A template structure is supported at the upper part of the supporting structure; the suspension structure comprises a suspension steel bar and a force transmission sleeve, the supporting structure comprises a separation cross beam and a longitudinal main beam, and the formwork structure comprises a distribution beam, a formwork keel and a steel formwork panel. The device has the advantages of being simple in structure, convenient to operate, high in construction efficiency, safe in unloading and the like, can effectively improve the quality and efficiency of pile plate type bridge construction, and has good application prospects.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge assembled formwork, in particular to a novel assembled formwork for a pile-slab bridge. Background Art

[0002] At present, in the construction process of pile-slab bridges, the traditional construction method is to construct the upper bridge deck structure by setting up a formwork support frame. The traditional construction method requires the treatment of the foundation under the bridge deck, and the ground under the bridge deck should be relatively flat. Therefore, the construction period is long and the cost is high; the subsequent construction process has developed into the clamp method and the steel rod method. The construction methods of the clamp method and the steel rod method have the danger of high-altitude operation of the clamp and steel plate installation, no suitable working surface, inconvenient support adjustment, low construction efficiency, and inconvenient template removal. These problems need to be further improved.

[0003] In summary, in response to the problems arising during the construction of pile-plank bridges, it is urgent to develop and design a new type of prefabricated formwork for pile-plank bridges and its construction method. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the utility model provides a new type of assembled formwork for pile-plank bridges, which has the advantages of simple structure, convenient operation, high construction efficiency, and safe unloading. It can effectively improve the quality and efficiency of pile-plank bridge construction and has good application prospects.

[0005] The utility model solves the above technical problems, and the technical solutions adopted are as follows:

[0006] A new type of assembled formwork for a pile-sheet bridge comprises a suspension structure fixedly mounted on the upper cross beams of the piles on the left and right sides, the bottom of the upper cross beams of the piles respectively supports a plurality of piles, a supporting structure is placed on the left and right suspension structures, and a formwork structure is supported on the upper part of the supporting structure; the suspension structure comprises a suspension steel rod and a force transmission sleeve, the supporting structure comprises a partition cross beam and a longitudinal main beam, and the formwork structure comprises a distribution beam, a formwork keel, and a steel formwork panel; a plurality of the suspension steel rods are arranged at intervals along the lateral direction in the upper cross beams of the piles, a force transmission sleeve is sleeved on the upper part of the suspension steel rod, and the upper end of the suspension steel rod A locking nut in contact with a force transmission sleeve is threadedly connected, wherein the lower parts of several suspended steel bars pass through the partition beam and are threadedly connected with locking nuts in contact with the bottom surface of the partition beam; a plurality of the longitudinal main beams are placed at longitudinal intervals between the two partition beams on opposite sides, and a plurality of the distribution beams are placed at transverse intervals on the plurality of longitudinal main beams, the template keel is fixedly arranged above the distribution beam through a U-shaped top support, the lower part of the screw of the U-shaped top support is fixedly connected in the distribution beam, the U-shaped head of the U-shaped top support is supported on the bottom of the template keel, and the steel template panel is placed on the top of the template keel.

[0007] As a further improved technical solution of the utility model, a PVC pipe is vertically pre-buried inside the upper cross beam of the pile, and both ends of the suspension steel rod pass through the PVC pipe and are provided with external threads compatible with the locking nut.

[0008] As a further improved technical solution of the utility model, the partition beam and distribution beam are double H-shaped steel structures, and reinforcing ribs are arranged at intervals. The spacing between the two H-shaped steels constituting the partition beam is greater than the diameter of the suspension steel rod, and the spacing between the two H-shaped steels constituting the distribution beam is compatible with the screw diameter of the U-shaped jacking support.

[0009] As a further improved technical solution of the utility model, the spacing between the reinforcing ribs is 1m, the inner diameter of the PVC pipe is 2-5mm larger than the diameter of the suspension steel rod, and the spacing between the two H-shaped steels constituting the separating beam is 2-5mm larger than the diameter of the suspension steel rod.

[0010] As a further improved technical solution of the utility model, the locking nut at the lower end of the suspension steel rod fixes the partition beam and the suspension steel rod through a gasket, and the locking nut at the upper end of the suspension steel rod transfers the lower load to the force transmission sleeve through the suspension steel rod, and the force transmission sleeve transfers the load to the upper crossbeam of the pile.

[0011] As a further improved technical solution of the utility model, the template keel is an H-shaped steel or an I-shaped steel, and the bottom of the template keel is placed in the U-shaped head of the U-shaped top support. The upper spiral transmission of the screw of the U-shaped top support is equipped with an adjusting nut, and the adjusting nut is placed on the bottom of the U-shaped head.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The new assembled formwork of the utility model mainly transmits the load below through the suspended steel rods. The separation beams, longitudinal main beams, distribution beams, and formwork keels transfer the concrete and construction loads to the suspended steel rods. The suspended steel rods transfer the loads to the upper beams of the piles through the force transmission sleeves. The installation of the formwork panel can adjust the bridge deck elevation by adjusting the U-shaped top support of the distribution beam. The new assembled formwork of the present invention can be applied to the construction of pile-slab bridges, eliminating the need to erect a frame and treat the foundation below the frame. The force is in line with the architectural structure design, the installation speed is fast, the bridge deck construction has a good visual quality, and the construction is convenient.

[0014] 2. The installation height and flatness of the steel formwork panel of the utility model can be precisely controlled by adjusting the height of the U-shaped top support on the distribution beam. The new assembled formwork for pile-column bridge and its construction method have the advantages of simple structure, convenient operation, high construction efficiency, safe unloading, etc., which can effectively improve the quality and efficiency of pile-plate bridge construction and have good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural explosion diagram of the utility model.

[0017] Figure 2 It is the front view of the utility model.

[0018] Figure 3 It is a left view of the utility model.

[0019] The reference numerals in the figure are: 1. Suspension steel rod; 2. Locking nut; 3. PVC pipe; 4. Partition beam; 5. Longitudinal main beam; 6. Gasket; 7. Distribution beam; 8. Formwork keel; 9. Steel formwork panel; 10. Force transmission sleeve; 11. Pile; 12. Pile upper beam; 13. Screw; 14. U-head. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0021] Embodiment 1:

[0022] Reference Figure 1 and Figure 2The present embodiment discloses a new type of assembled formwork for pile-sheet bridge, comprising a suspension structure fixedly mounted on the upper cross beams of the piles 11 on the left and right sides, a plurality of piles 11 are supported and arranged at the bottom of the upper cross beams 12 of the piles, a supporting structure is placed on the left and right suspension structures, and a formwork structure is supported on the upper part of the supporting structure; the suspension structure comprises a suspension steel bar 1 and a force transmission sleeve 10, the supporting structure comprises a partition cross beam 4 and a longitudinal main beam 5, the formwork structure comprises a distribution beam 7, a formwork keel 8, and a steel formwork panel 9; a plurality of the suspension steel bars 1 are arranged at intervals along the lateral direction in the upper cross beams of the piles 11, a force transmission sleeve 10 is sleeved on the upper part of the suspension steel bar 1, The upper end of the hanging steel rod 1 is threadedly connected with a locking nut 2 in contact with the force transmission sleeve 10, wherein the lower parts of several hanging steel rods 1 pass through the dividing beam 4 and are threadedly connected with the locking nut 2 in contact with the bottom surface of the dividing beam; a plurality of longitudinal main beams 5 are placed along the longitudinal interval between the two dividing beams 4 located on the opposite sides, and a plurality of distribution beams 7 are placed along the transverse interval on the plurality of longitudinal main beams 5, and the formwork keel 8 is fixedly arranged above the distribution beam 7 through a U-shaped top support, and the lower part of the screw rod 13 of the U-shaped top support is fixedly connected in the distribution beam 7, and the U-shaped head 14 of the U-shaped top support is supported at the bottom of the formwork keel 8, and a steel formwork panel 9 is placed on the top of the formwork keel 8.

[0023] Reference Figure 3 , a PVC pipe 3 is vertically embedded in the upper beam of the pile 11, and both ends of the suspension steel rod 1 pass through the PVC pipe 3 and are provided with external threads that match the locking nut 2. The partition beam 4 and the distribution beam 7 are double H-shaped steel structures, and reinforcing ribs are arranged at intervals. The spacing between the two H-shaped steels constituting the partition beam 4 is greater than the diameter of the suspension steel rod 1, and the spacing between the two H-shaped steels constituting the distribution beam 7 is compatible with the diameter of the screw 13 of the U-shaped jacking.

[0024] In this embodiment, the spacing between the reinforcing ribs is 1m, the inner diameter of the PVC pipe 3 is 2-5mm larger than the diameter of the suspension steel rod 1, and the spacing between the two H-shaped steels constituting the partition beam 4 is 2-5mm larger than the diameter of the suspension steel rod 1. The locking nut 2 at the lower end of the suspension steel rod 1 fixes the partition beam to the suspension steel rod 1 through the gasket 6, and the locking nut 2 at the upper end of the suspension steel rod 1 transfers the lower load to the force transmission sleeve 10 through the suspension steel rod 1, and the force transmission sleeve 10 transfers the load to the upper beam of the pile 11.

[0025] The template keel 8 is an H-shaped steel or an I-shaped steel. The bottom of the template keel 8 is placed in the U-shaped head 14 of the U-shaped top support. The upper spiral transmission of the screw rod 13 of the U-shaped top support is matched with an adjusting nut, and the adjusting nut is placed on the bottom of the U-shaped head 14.

[0026] During the construction of the pile 11 column bridge, a hole for the suspension steel rod 1 is reserved through the PVC pipe 3 when the upper cross beam 12 of the pile is constructed. After the construction of the upper cross beam 12 of the pile is completed, the suspension steel rod 1 is inserted, and the upper and lower parts of the screw 13 are locked and fixed by the locking nut 2. Below the upper locking nut 2 is the force transmission sleeve 10, which transmits the load to the cap beam. Above the lower nut is the partition cross beam 4, and the longitudinal main beam 5 is placed on the partition cross beam 4. The longitudinal main beam 5 is placed on the longitudinal main beam 5. The horizontally arranged distribution beam 7 is placed on the longitudinal main beam 5. A U-shaped top support is provided on the distribution beam 7. The U-shaped top support adjusts the top support height of the U-shaped head 14 by rotating the adjustment nut to adjust the template elevation and flatness. An I-beam is placed on the cross beam as a template keel 8, and then a steel template panel 9 is laid on the template keel 8. The bridge deck structure is constructed on the upper part, and finally concrete is poured. After the concrete solidifies and reaches the demolding strength, the support formwork is removed to complete the construction.

[0027] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A new type of assembled formwork for pile-sheet bridge, characterized in that: It includes suspension structures fixedly installed on the upper cross beams of the piles on the left and right sides respectively, a plurality of piles are supported and arranged at the bottom of the upper cross beams of the piles respectively, a supporting structure is placed on the left and right suspension structures, and a formwork structure is supported on the upper part of the supporting structure; the suspension structure includes a suspension steel rod and a force transmission sleeve, the supporting structure includes a partition cross beam and a longitudinal main beam, and the formwork structure includes a distribution beam, a formwork keel and a steel formwork panel; a plurality of the suspension steel rods are arranged in the horizontal direction at intervals in the upper cross beams of the piles respectively, a force transmission sleeve is sleeved on the upper part of the suspension steel rod, and a force transmission sleeve is threadedly connected to the upper end of the suspension steel rod The locking nut contacts the force sleeve, wherein the lower parts of several suspension steel bars pass through the partition beam and are threadedly connected with the locking nut in contact with the bottom surface of the partition beam; a plurality of the longitudinal main beams are placed at intervals along the longitudinal direction between the two partition beams located on the opposite sides, and a plurality of the distribution beams are placed at intervals along the transverse direction on the plurality of longitudinal main beams, the template keel is fixedly arranged above the distribution beam through a U-shaped top support, the lower part of the screw of the U-shaped top support is fixedly connected to the distribution beam, the U-shaped head of the U-shaped top support is supported on the bottom of the template keel, and the steel formwork panel is placed on the top of the template keel.

2. The novel assembled formwork for pile-sheet bridge according to claim 1 is characterized in that: A PVC pipe is vertically pre-buried inside the upper cross beam of the pile, and both ends of the suspension steel rod penetrate the PVC pipe and are provided with external threads matched with locking nuts.

3. The novel assembled formwork for pile-sheet bridge according to claim 2 is characterized in that: The partition beam and distribution beam are double H-shaped steel structures, and reinforcing ribs are arranged at intervals. The spacing between the two H-shaped steels constituting the partition beam is greater than the diameter of the suspension steel rod, and the spacing between the two H-shaped steels constituting the distribution beam is compatible with the screw diameter of the U-shaped jacking support.

4. The novel assembled formwork for pile-sheet bridge according to claim 3 is characterized in that: The spacing between the reinforcing ribs is 1m, the inner diameter of the PVC pipe is 2-5mm larger than the diameter of the suspension steel rod, and the spacing between the two H-shaped steels constituting the separation beam is 2-5mm larger than the diameter of the suspension steel rod.

5. The novel assembled formwork for pile-sheet bridge according to claim 1 is characterized in that: The locking nut at the lower end of the suspension steel rod fixes the partition beam and the suspension steel rod through a gasket, and the locking nut at the upper end of the suspension steel rod transfers the lower load to the force transmission sleeve through the suspension steel rod, and the force transmission sleeve transfers the load to the upper crossbeam of the pile.

6. The novel assembled formwork for pile-sheet bridge according to claim 1 is characterized in that: The template keel is an H-shaped steel or an I-shaped steel, and the bottom of the template keel is placed in the U-shaped head of the U-shaped top support. The upper spiral transmission of the screw rod of the U-shaped top support is matched with an adjusting nut, and the adjusting nut is placed on the bottom of the U-shaped head.

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