CN211735113U

CN211735113U - High formwork structure is connect to regularization bent cap

Info

Publication number: CN211735113U
Application number: CN201821241588.XU
Authority: CN
Inventors: 王新泉
Original assignee: Shandong Luqiao Construction Co ltd
Current assignee: Shandong Hi Speed Engineering Construction Group Co Ltd
Priority date: 2018-08-02
Filing date: 2018-08-02
Publication date: 2020-10-23
Anticipated expiration: 2028-08-02

Abstract

The utility model relates to a building technical field, concretely relates to regularization bent cap connects high formwork structure, by the side form, the end mould, stretch-draw end template, the side form supports to form, and each template tip is equipped with unsmooth tongue-and-groove, and the quick connection between each template is realized to the cooperation connecting rod. The side form support comprises a telescopic sleeve and a support base plate, one end of the telescopic sleeve is supported on the support base plate, and the other end of the telescopic sleeve is fixed on the scaffold. The utility model discloses can show the efficiency of construction that improves bent cap and connect high formwork, the use of saving the template material.

Description

High formwork structure is connect to regularization bent cap

Technical Field

The utility model relates to a building technical field, concretely relates to regularization bent cap connects high formwork structure.

Background

In order to develop the space under the bridge and improve the clear space under the bridge, the bridge jacking construction has become an important ring in the current bridge engineering. After the jacking of the bridge deck is completed, the original capping beam needs to be heightened, so that the problem of erecting the capping beam formwork is involved.

The bent cap formwork is constructed at high altitude, so that the operation of matching with a crane is relatively complex, and the connection between the formworks in the traditional mode is time-consuming and labor-consuming. And the support of the template structure is always a great problem in the construction of the bent cap formwork. Different from the construction of the bent cap, if the bent cap connection construction template is erected from a counter-force supporting platform, a large amount of template materials are wasted; however, if the support is installed on the scaffold, a high requirement is imposed on the stress requirement of the scaffold, and the support may affect the operation of constructors on the scaffold.

In summary, in order to improve the construction quality of the bent cap formwork construction, it is urgently needed to invent a simple and effective shaped bent cap high-formwork structure, so as to ensure efficient and green bent cap high-formwork construction.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple effectual regularization bent cap connects high formwork structure in order to improve the construction quality of bent cap formwork construction.

In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme:

a high formwork structure of regularization bent cap connection, it is made up of side form, end mould, stretch-draw end template and side form support; holes for the corrugated pipes and the prestressed tendons to penetrate through are reserved in the end die and the tensioning end die plate; the end parts of the side die, the end die and the tensioning end template are respectively provided with a concave-convex rabbet, and the side die, the end die and the tensioning end template are matched with a connecting rod and connected through the concave-convex rabbet; the side mold support comprises a telescopic sleeve and a support base plate, the support base plate is arranged on the side mold, one end of the telescopic sleeve is supported on the support base plate, and the other end of the telescopic sleeve is fixed on a construction frame;

preferably, a construction space is formed after the side die, the end die and the tensioning end die plate are enclosed, and a reinforcement cage, a corrugated pipe and a prestressed tendon are installed in the construction space.

Preferably, a plurality of side form fixing holes are reserved on the side forms, and a plurality of reinforcing steel bars are implanted in the bent cap in advance and matched with the side form fixing holes to support the formwork structure.

Preferably, the concave-convex rabbet comprises a sub-part and a mother part, the sub-part and the mother part are respectively arranged on different parts for connection, the sub-part is provided with a plurality of inserting columns, the mother part is provided with a plurality of inserting holes matched with the sub-part, and the side die, the end die and the tensioning end die plate are inserted into the mother part through the sub-part to realize mutual connection.

Preferably, the concave-convex tongue-and-groove is provided with a round hole matched with the connecting rod, and the connecting rod is inserted into the corresponding hole to realize the connection between the concave-convex tongue-and-groove.

Compared with the prior art, the utility model, beneficial effect is:

(1) by utilizing the concave-convex tongue-and-groove and the connecting rod, the rapid connection between the formworks is realized, and the construction efficiency is improved; and the disassembly is convenient, the secondary utilization can be realized, and the concept of sustainable development is met.

(2) The side form is provided with the side form fixing hole, the side form fixing hole is matched with the steel bar on the cover beam, the cover beam is connected with the support of the high formwork supporting structure to be fixed, and waste caused by supporting the formwork from the counter-force platform is avoided.

Drawings

FIG. 1 is a layout diagram of a structure of a shaped bent cap connected with a high formwork;

FIG. 2 is a schematic view of a male-female tongue-and-groove connection;

fig. 3 is a top view of the structure of the shaped capping beam connected with the high formwork.

In the figure: 2 capping beams, 3 bridge decks, 9 construction frames, 13 prestressed tendons, 14 anchors, 15 reinforcement cages, 17 concrete, 19 side moulds, 20 end moulds, 21 tensioning end templates, 23 concave-convex tongue-and-groove joints, 24 connecting rods, 25 side mould fixing holes, 27 side mould supports, 28 telescopic sleeves, 29 support backing plates, 30 corrugated pipes and 31 grouting pore passages.

Detailed Description

The technical solution of the present invention is further described and illustrated by the following specific embodiments.

The raw materials used in the examples of the present invention are all those commonly used in the art, and the methods used in the examples are all those conventionally used in the art.

The shaped bent cap beam is connected with a high formwork structure, as shown in figures 1-3, and consists of a side mould 19, an end mould 20, a tensioning end template 21 and a side mould support 27; holes for the corrugated pipe 30 and the prestressed tendons 13 to pass through are reserved in the end die 20 and the tensioning end die plate 21; the end parts of the side die 19, the end die 20 and the tensioning end template 21 are respectively provided with a concave-convex rabbet 23, and the side die 19, the end die 20 and the tensioning end template 21 are matched with a connecting rod 24 and connected through the concave-convex rabbet 23; the side mould support 27 comprises a telescopic sleeve 28 and a support base plate 29, the support base plate 29 is arranged on the side mould 19, one end of the telescopic sleeve 28 is supported on the support base plate 29, and the other end of the telescopic sleeve 28 is fixed on the construction frame 9;

and after the side die 19, the end die 20 and the tensioning end template 21 are enclosed, a construction space is formed, and a reinforcement cage 15, a corrugated pipe 30 and a prestressed tendon 13 are installed in the construction space.

A plurality of side die fixing holes 25 are reserved on the side die 19, and a plurality of reinforcing steel bars are implanted in the bent cap 2 in advance and matched with the side die fixing holes 25 to support the formwork supporting structure.

The concave-convex rabbet 23 comprises a sub-part and a female part, and is respectively arranged on different parts for connection, the sub-part is provided with a plurality of inserting columns, the female part is provided with a plurality of inserting holes matched with the sub-part, and the side die 19, the end die 20 and the tensioning end die plate 21 are mutually connected by inserting the sub-part into the female part.

The concave-convex rabbet 23 is provided with a round hole matched with the connecting rod 24, and the connecting rod 24 is inserted into the corresponding hole to realize the connection between the concave-convex rabbet 23.

The specific construction process is as follows:

the first step is that when the bridge deck 3 is jacked to the designed elevation, the capping beam 2 needs to be elevated. Firstly, steel bars are implanted on the side surfaces of the cover beam 2, and then the cover beam 2 is installed to be connected with a high construction formwork, which comprises side formworks 19, end formworks 20 and tensioning end formworks 21, as shown in figure 1. The template is a steel plate with the thickness of 12mm, concave-convex grooves and tongues 23 shown in figure 2 are arranged on the end faces of the templates, the template is hollow, circular holes with the diameter of 8mm except for the bottommost grooves and tongues can be mutually occluded, and quick connection is realized through connecting rods 24 with the diameter of 8 mm. The side mould 19 is provided with a side mould fixing hole 25 which is connected with the implanted steel bar on the side surface of the cover beam 2 so as to fix the whole template structure.

In a second step to further increase the strength and stability of the formwork structure, sideform supports 27 are provided on the sideforms 19, which are comprised of telescoping sleeves 28 and support pads 29. The telescopic sleeve 28 has a diameter of 28mm, one end fixed to the support pad 29 and the other end mounted on a scaffold. After the formwork is installed, the reinforcement cage 15, the corrugated pipe 30 and the prestressed tendons 13 are installed in the formwork, and a grouting hole 31 is pre-buried in advance for facilitating grouting in the corrugated pipe, referring to fig. 3.

And thirdly, pouring concrete 17 in a space enclosed by the formworks, maintaining to finish the height connecting construction of the bent cap 2, then performing prestress construction, adopting a post-tensioning construction process of single-end tensioning, and re-fixing the bridge deck 3 on the bent cap. Finally the scaffold 9 is dismantled.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The regularization bent cap connects the high formwork structure, characterized by, by the side form (19), end mould (20), stretch-draw end template (21) and side form support (27) to make up; holes for the corrugated pipe (30) and the prestressed tendons (13) to pass through are reserved in the end die (20) and the tensioning end die plate (21); the end parts of the side die (19), the end die (20) and the tensioning end die plate (21) are respectively provided with a concave-convex rabbet (23), and the side die (19), the end die (20) and the tensioning end die plate (21) are matched with a connecting rod (24) and connected through the concave-convex rabbet (23); the side mould support (27) comprises a telescopic sleeve (28) and a support base plate (29), the support base plate (29) is arranged on the side mould (19), one end of the telescopic sleeve (28) is supported on the support base plate (29), and the other end of the telescopic sleeve is fixed on the construction frame (9).

2. The regularized bent cap heightening formwork structure according to claim 1, characterized in that a construction space is formed after the side forms (19), the end forms (20) and the tensioning end forms (21) are enclosed, and a reinforcement cage (15), a corrugated pipe (30) and a prestressed tendon (13) are installed in the construction space.

3. The regularization bent cap connects high formwork structure according to claim 1 or 2, characterized by that, leave several side form fixing holes (25) on the side form (19), implant several steel reinforcement and cooperate with side form fixing hole (25) to support the formwork structure in advance on the bent cap (2).

4. The structure of the shaped bent cap high-support mold according to claim 1 or 2, wherein the concave-convex rabbet (23) comprises a sub-part and a female part, and the sub-part and the female part are respectively arranged on different components for connection, the sub-part is provided with a plurality of inserting columns, the female part is provided with a plurality of inserting holes matched with the sub-part, and the side mold (19), the end mold (20) and the tension end mold (21) are connected with each other by inserting the sub-part into the female part.

5. The regularized capping beam heightening formwork structure according to claim 4, wherein the concave-convex rabbet (23) is provided with a round hole matched with the connecting rod (24), and the connecting rod (24) is inserted into the corresponding hole to realize the connection between the concave-convex rabbet (23).