CN218894408U - Concrete formwork connecting piece and internal support formwork suitable for underground haunched structure - Google Patents
Concrete formwork connecting piece and internal support formwork suitable for underground haunched structure Download PDFInfo
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- CN218894408U CN218894408U CN202222998988.8U CN202222998988U CN218894408U CN 218894408 U CN218894408 U CN 218894408U CN 202222998988 U CN202222998988 U CN 202222998988U CN 218894408 U CN218894408 U CN 218894408U
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Abstract
The utility model discloses a concrete template connecting piece and an inner support die frame applicable to an underground haunched structure, belonging to the technical field of constructional engineering, comprising a connecting piece main body, wherein a first step is arranged on one side in the connecting piece main body, and a second step is arranged on the other side in the connecting piece main body; a positioning hole is formed in the first step of the connecting piece main body and is fixedly connected with the hinge; and a locking notch is arranged at the second step of the connecting piece main body. The concrete template connecting piece is connected between the top template and the side template of the die frame, so that the stability of the connecting position of the templates is reinforced, and the penetration of concrete and water at the connecting position of the top template and the side template is prevented; and the angle of the connecting piece main body can be adjusted, so that the connecting piece is convenient to install and detach.
Description
Technical Field
The utility model belongs to the technical field of constructional engineering, and particularly relates to a concrete template connecting piece and an inner support formwork which are suitable for an underground haunching structure.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In the field of modern constructional engineering, the quality of underground structures is influenced by the safety coefficient, and an armpit structure is usually arranged at the joint of a basement roof and a main building shear wall and the joint of an urban underground pipe gallery engineering roof and a guide wall. Through setting up the haunching structure can effectively change the internal force distribution of underground structure, weakens the influence of adverse factor on the structure, improves the holistic rigidity of structure, intensity and improves holistic anti collapse, shock resistance.
The haunching structure is generally finished by casting the formwork support system of the underground structure once, however, the existing formwork support system is insufficient in stability and rigidity, and the formwork is not firmly fixed. The connection part of the side templates and the top templates is not tight enough, slurry leakage is serious in the concrete pouring and vibrating process, and mold explosion is likely to occur, so that the pitting surface or honeycomb phenomenon of a cast and formed haunched structure is likely to occur, the attractiveness is affected, the later period is repaired by plastering, a new and old concrete mixing interface is easy to store at the haunched structure, the compactness of concrete is insufficient, and the water leakage phenomenon is likely to occur in earthwork backfilling. In consideration of the structural specificity of the haunching structure, the assembly process of the template at the haunching structure is complex, the template is not easy to disassemble, the demolition consumption time is long, and the overall construction efficiency of the underground structure is greatly influenced.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide a concrete template connecting piece and an inner support die frame which are applicable to an underground haunching structure, wherein the concrete template connecting piece is connected between a top template and a side template of the die frame, so that the stability of the connecting part of the templates is reinforced, and the penetration of concrete and water at the connecting part of the top template and the side template is prevented; and the angle of the connecting piece main body can be adjusted, so that the connecting piece is convenient to install and detach.
In order to achieve the above object, the present utility model is realized by the following technical scheme:
in a first aspect, the utility model provides a concrete formwork connecting piece suitable for an underground haunching structure, which comprises a connecting piece main body, wherein a first step is arranged on one side in the connecting piece main body, and a second step is arranged on the other side in the connecting piece main body; a positioning hole is formed in the first step of the connecting piece main body and is fixedly connected with the hinge; and a locking notch is arranged at the second step of the connecting piece main body.
As a further technical scheme, a plurality of hinges are arranged, and the distance between every two adjacent hinges is 0.5-1m.
As a further technical scheme, connecting piece main part one end sets up the lug, and the other end sets up the recess, and the lug and the recess block of adjacent connecting piece main part.
As a further technical scheme, the connecting piece main part is including connecting integrative first straight portion, tilting portion and the straight portion of second, and first straight portion surface level sets up, and tilting portion surface has the contained angle with first straight portion surface, and the vertical setting of second straight portion surface.
As a further technical scheme, the inner side of the first straight part is correspondingly provided with a first step, and the inner side of the second straight part is correspondingly provided with a second step.
In a second aspect, the utility model also provides an internal support formwork comprising a concrete formwork connector as described above.
As a further technical scheme, the concrete slab further comprises a top formwork, side formworks are arranged on two sides of the top formwork, and a concrete formwork connecting piece is connected between the end part of the top formwork and the top end of the side formworks.
As a further technical scheme, the first step of connecting piece main part is connected with the top template block, and the hinge and the top template fixed connection of first step department, the second step of connecting piece main part is connected with the side form block, and the fore shaft and the side form alignment of second step department are connected.
As a further technical scheme, the bottom of the top template is connected with the top steel through a top edge, and the side part of the side template is connected with the side steel through a side edge; the middle part of the top steel is fixedly connected with the middle steel, a telescopic device is connected between the middle steel and the side steel, and the telescopic device is horizontally arranged and can push the side steel to translate; the bottoms of the side steel and the middle steel are provided with jacks, and universal wheels are installed on the side surfaces of the bottoms of the middle steel and the side steel.
As a further technical scheme, the telescopic device comprises a rotary drum, wherein both ends of the rotary drum are connected with support rods, one end part of one support rod is connected with middle steel, and the other end part of the other support rod is connected with side steel; the screw threads in opposite directions are arranged at the two ends in the rotary drum, the supporting rods are provided with external screw threads, the screw threads of the two supporting rods are opposite in direction, and the rotary drum is in threaded connection with the supporting rods.
The beneficial effects of the utility model are as follows:
the concrete template connecting piece is connected between the top template and the side template of the supporting die frame, so that the stability of the connecting part of the templates is reinforced, the problem that the connecting part of the side template and the top template is not tight enough is effectively solved, and the slurry leakage or die explosion phenomenon in the concrete pouring and vibrating process is prevented.
According to the concrete template connecting piece, the first step is arranged at the connecting part of the connecting piece main body and the top template, so that top concrete can be prevented from penetrating into the die frame; the step is arranged at the connection part of the connecting piece main body and the side template, so that the side concrete can be prevented from penetrating into the die frame.
According to the concrete formwork connecting piece, the hinge is arranged at the first step and is connected with the top formwork, the angle of the formwork connecting piece can be adjusted, the problems that the traditional formwork is difficult to splice and difficult to disassemble are avoided, and the efficiency of rapid formwork supporting and rapid construction of an inner supporting formwork system is improved.
According to the concrete template connecting piece, the locking notch is arranged at the second step and is connected with the side template, so that the connecting piece and the side template are not easy to shift in the concrete pouring process, and the quality of the haunching structure and the side wall forming is effectively guaranteed.
The concrete template connecting piece is provided with the convex blocks and the grooves at the two ends respectively, so that the assembling and the extension of the connecting piece are facilitated.
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 utility model.
FIG. 1 is a schematic view of a concrete form connector according to one or more embodiments of the utility model;
FIG. 2 is a top view of a concrete form connector according to one or more embodiments of the present utility model;
FIG. 3 is a schematic illustration of a connector body according to one or more embodiments of the present utility model;
FIG. 4 is a schematic view of an internal support scaffold according to one or more embodiments of the present disclosure;
FIG. 5 is a schematic view of an inner support formwork in a moved state of a concrete form connector according to one or more embodiments of the present utility model;
FIG. 6 is a schematic illustration of an internal support formwork in an operational state of a concrete form connector according to one or more embodiments of the present utility model;
in the figure: the mutual spacing or size is exaggerated for showing the positions of all parts, and the schematic drawings are used only for illustration;
the connecting piece comprises a connecting piece body 1, a hinge 2, a protruding block 3, a groove 4, a first step 5, a second step 6, a positioning hole 7, a locking notch 8, a top template 9, a side template 10, a top edge 11, a top steel 12, a side edge 13, a side steel 14, a middle steel 15, a jack 16, a rotary drum 17, a supporting rod 18 and a universal wheel 19.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
Example 1:
in an exemplary embodiment of the present utility model, as shown in fig. 1, a concrete form connector suitable for an underground haunched structure is provided, the connector being disposed corresponding to the position of the haunched structure; in order to adapt to the inclined haunching structure, the whole connecting piece is also inclined.
The connecting piece mainly comprises a connecting piece main body 1, a hinge 2 and the like.
Wherein, connecting piece main part 1 wholly is the slope form, can guarantee that it closely laminates with haunching structure department to effectively prevent that the haunching structure of pouring shaping from appearing pitting or honeycomb phenomenon, influence pleasing to the eye, improve the compactibility of concrete, the earth is backfilled and is difficult for appearing the leakage water phenomenon. The outer surface of the main structure of the connecting piece is smooth, the haunched structure formed after concrete is poured is attractive, and the compactness of the concrete is better.
One end of the connecting piece main body 1 is provided with a bump 3, the other end is provided with a groove 4, and the bump of the adjacent connecting piece main body 1 is clamped with the groove, so that the lengthening of the connecting piece is facilitated.
The outer surface of the connecting piece main body 1 is attached to the haunched structure, one side of the connecting piece main body 1 is connected with a top template 9 of the underground structure supporting die frame, and the other side of the connecting piece main body 1 is connected with a side template 10 of the underground structure supporting die frame; the connection part of the connecting piece main body 1, the top template 9 and the side template 10 is arranged in a step shape, namely, a first step 5 is arranged on one side in the connecting piece main body 1, a second step 6 is arranged on the other side, the first step 5 is connected with the top template 9, and the second step 6 is connected with the side template 10; the concrete mold is arranged in a step mode, so that the contact area with the mold plate can be increased, the stability is improved, the impermeability can be effectively improved, and the concrete is prevented from penetrating into the mold frame from the joint.
The connecting piece main body 1 comprises a first straight part, an inclined part and a second straight part which are connected into a whole in the whole structure, wherein the outer surface of the first straight part is horizontally arranged, the outer surface of the inclined part and the outer surface of the first straight part form a certain included angle, and the outer surface of the second straight part is vertically arranged; the inner side of the first straight part is correspondingly provided with a first step 5, and the inner side of the second straight part is correspondingly provided with a second step 6.
The first step 5 of the connecting piece main body 1 is provided with a positioning hole 7, and the positioning hole 7 is fixedly connected with the hinge 2 through a bolt. The hinge 2 is fixedly connected with the top template 9, one half of the hinge 2 is aligned with the positioning hole 7 on the connecting piece main body 1, the other half of the hinge 2 is aligned with the positioning hole 7 on the top template 9 through bolt fixed connection. The number of the hinges 2 is multiple, and the distance between every two adjacent hinges 2 is 0.5-1m. Through the setting of hinge 2 for template connecting piece angle can be adjusted.
A locking notch 8 is arranged at the second step 6 of the connecting piece main body 1, and the locking notch 8 can be arranged on a connecting plate to fix the connecting plate on the second step 6; through the setting of fore shaft 8, when the connecting piece is in the open condition, the fore shaft on the connecting piece aligns with the fore shaft on the side form, through bolt fixed connection, improves the stability of connecting piece and template, prevents that the connecting piece from appearing the dislocation when concreting with the side form, and arouses the thick liquid phenomenon of leaking.
Example 2:
in this embodiment, an inner support formwork is provided, which includes the concrete formwork connecting member as described above.
The inner support die frame is provided with a top die plate 9, side die plates 10 are arranged on two sides of the top die plate 9, and the concrete die plate connecting piece is connected between the end part of the top die plate 9 and the top end of the side die plate 10. Wherein, the first step 5 of connecting piece main part 1 is connected with cope match-plate pattern 9 block, and hinge 2 and cope match-plate pattern 9 fixed connection of first step 5 department, the second step 6 of connecting piece main part 1 is connected with side form 10 block, and the fore shaft 8 of second step 6 department is connected with side form 10 alignment, forms wholly.
The inner support die frame also comprises a top steel 12 and a side steel 14, wherein the bottom of the top die plate 9 is connected with the top steel 12 through a top edge 11, the side part of the side die plate 10 is connected with the side steel 14 through a side edge 13, the top steel 12 is horizontally arranged, the side steel 14 is vertically arranged, and a jack 16 is arranged at the bottom of the side steel 14; the middle part of the top steel 12 is fixedly connected with the middle steel 15, the middle steel 15 is vertically arranged, a telescopic device is connected between the middle steel 15 and the side steel 14, and the telescopic device is horizontally arranged to push the side steel 14 to translate.
The bottom of the middle steel 15 can be provided with a jack 16, so that the lifting is convenient. The universal wheels 19 are arranged on the side surface of the bottom of the middle steel 15, so that the middle steel is convenient to move. The bottom side of the side steel 14 is also provided with universal wheels 19.
In this embodiment, the telescopic device comprises a rotary drum 17, two ends of the rotary drum 17 are connected with support rods 18, one end part of one support rod 18 is connected with the middle steel 15 through a connecting block, and the other end part of the other support rod 18 is connected with the side steel 14 through a connecting block; the screw threads in opposite directions are arranged at the two ends in the rotary drum 17, the supporting rods 18 are provided with external screw threads, the screw threads of the two supporting rods 18 are opposite in direction, the rotary drum 17 is in screw connection with the supporting rods 18, and the two supporting rods 18 can move oppositely or move oppositely by rotating the rotary drum 17 so as to stretch or shrink to drive the side template 10 to move.
The use process of the inner support die carrier is as follows:
s1, erecting an inner support die carrier; the support rods 18 are arranged on two sides of the middle steel 15 at equal intervals, the distance between the support rods is 1-2m, the end parts of the support rods 18 are fixedly connected with the middle steel 15 through connecting blocks and high-strength bolts, and the jack 16 is arranged at the bottom of the middle steel 15, so that the purpose is to facilitate lifting of the integral die carrier. The universal wheels 19 are arranged on the side surface of the bottom of the middle steel 15, and the purpose of the universal wheels is to facilitate the transfer of the die carrier. Secondly, supporting rods 18 are equidistantly arranged on one side of the side steel 14 at intervals of 1-2m, jacks 16 are arranged at the bottom of the side steel 14, and universal wheels 19 are arranged on the side face of the bottom of the side steel 14. Then, the two side steels 14 are placed on two sides of the middle steel 15, one side of the rotary drum 17 is connected with the supporting rods 18 on the middle steel 15 by using the rotary drum 17, the other side of the rotary drum 17 is connected with the supporting rods 18 on the side steels 14, and the left-right shrinkage of the inner supporting die frame can be completed by rotating the rotary drum 17. The top of the middle steel 15 is fixedly connected with the top steel 12 through high-strength bolts, so that an integral die carrier is formed. And lifting the two die frames by using lifting equipment, installing the side templates 10 on the side surfaces of the two die frames, respectively arranging the two die frames on the forefront and the rearmost of the side templates 10, enabling the whole die frames to be erected, and sequentially installing the rest die frames inside the two die frames. Finally, the top template 9 is mounted on top of the mould frame.
S2, installing a concrete template connecting piece; on the connector body 1, hinges 2 are uniformly arranged along the length direction of the connector body 1, and the distance between the hinges is 0.5-1m. The positioning hole on one side of the hinge 2 is aligned with the positioning hole 7 on the connecting piece main body 1 and is fixedly connected through a bolt. And lifting the concrete template connecting piece by using lifting equipment, placing the concrete template connecting piece at the opposite angles of the side templates 10 and the top templates 9, aligning the locating holes of the hinge 2 of the concrete template connecting piece with the locating holes of the top templates 9, and fixedly connecting the hinge and the locating holes by bolts. The locking notch 8 on the concrete formwork connecting piece is aligned with the locking notch on the side formwork 10, the locking notch is fixed through the bolts, the stability of the connecting piece and the formwork is improved, and the phenomenon of slurry leakage caused by the fact that the connecting piece and the side formwork 10 are staggered in concrete pouring is prevented, so that the whole body is formed.
S3, transferring the die carrier; the bolts at the locking openings 8 of the concrete formwork connecting pieces are pulled up, and the rotary drums 17 on the formwork are rotated, so that the left and right side formworks 10 are contracted inwards. Because the concrete form connector is connected with the top form 9 through the hinge 2, the concrete form connector naturally falls down when the side form 10 is contracted by rotating around the shaft, and is in a closed state at the moment. The mould frame is moved into the steel reinforcement framework of the underground structure, and the direction of the mould frame is consistent with the length direction of the underground structure. During the movement of the formwork, the side forms 10 are in a contracted state and the concrete form connectors are in a contracted state until reaching the designated positions.
S4, after the die carrier moves to a designated position, adjusting a jack 16 at the bottom of the die carrier to enable the jack to rise to a designated height of an underground structure, and rotating a rotary drum 17 on the die carrier to enable the side die plate 10 to reach a designated width. During expansion of the sideform 10, the concrete form connector will open about the hinge axis. When the sideform 10 reaches the designated position, the sideform 10 is aligned with the locking notch 8 on the concrete form connector and bolted. And then pouring concrete on the side surface and the top of the underground structure. Because the concrete template connecting piece is in a locking state, the stability of the haunched position is high, and the slurry leakage phenomenon is not easy to occur.
S5, after the casting body reaches the standard, demolding the mold frame. First, the bolts at the locking notch 8 of the concrete form connector are pulled out. The bottom jack 16 of the mould frame is lowered until the universal wheel 19 contacts the ground. The drum 17 on the formwork is then rotated to retract the sideform 10 and the concrete form connector is lowered about the hinge axis until retraction is completed.
S6, moving the die carrier to the next appointed position, and repeating the steps 4 to 5.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The concrete template connecting piece suitable for the underground haunching structure is characterized by comprising a connecting piece main body, wherein a first step is arranged on one side in the connecting piece main body, and a second step is arranged on the other side in the connecting piece main body; a positioning hole is formed in the first step of the connecting piece main body and is fixedly connected with the hinge; and a locking notch is arranged at the second step of the connecting piece main body.
2. The concrete form connecting piece of claim 1, wherein a plurality of hinges are provided, and the distance between adjacent hinges is 0.5-1m.
3. The concrete form connector of claim 1, wherein said connector body has a projection at one end and a recess at the other end, the projection and recess of adjacent connector bodies being engaged.
4. The concrete form connector of claim 1, wherein the connector body includes a first straight portion, an inclined portion, and a second straight portion integrally connected, the first straight portion having an outer surface disposed horizontally, the inclined portion having an angle with the first straight portion outer surface, the second straight portion having an outer surface disposed vertically.
5. The concrete form connecting piece of claim 4, wherein the first straight portion has a first step on an inner side thereof and the second straight portion has a second step on an inner side thereof.
6. An internal support formwork comprising a concrete form connector as claimed in any one of claims 1 to 5.
7. The internal support formwork of claim 6, further comprising a top formwork, side formworks are disposed on both sides of the top formwork, and concrete formwork connectors are connected between ends of the top formwork and top ends of the side formworks.
8. The internal support mold frame according to claim 7, wherein the first step of the connecting piece body is connected with the top mold plate in a clamping manner, the hinge at the first step is fixedly connected with the top mold plate, the second step of the connecting piece body is connected with the side mold plate in a clamping manner, and the locking notch at the second step is connected with the side mold plate in an aligning manner.
9. The internal support formwork of claim 7, wherein the bottom of the top formwork is connected with the top steel through top ridges, and the side parts of the side formworks are connected with the side steel through side ridges; the middle part of the top steel is fixedly connected with the middle steel, a telescopic device is connected between the middle steel and the side steel, and the telescopic device is horizontally arranged and can push the side steel to translate; the bottoms of the side steel and the middle steel are provided with jacks, and universal wheels are installed on the side surfaces of the bottoms of the middle steel and the side steel.
10. The internal support matrix of claim 9, wherein the telescoping device comprises a rotating drum with both ends connected to support bars, one of the support bar ends being connected to the middle steel and the other support bar end being connected to the side steel; the screw threads in opposite directions are arranged at the two ends in the rotary drum, the supporting rods are provided with external screw threads, the screw threads of the two supporting rods are opposite in direction, and the rotary drum is in threaded connection with the supporting rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222998988.8U CN218894408U (en) | 2022-11-10 | 2022-11-10 | Concrete formwork connecting piece and internal support formwork suitable for underground haunched structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222998988.8U CN218894408U (en) | 2022-11-10 | 2022-11-10 | Concrete formwork connecting piece and internal support formwork suitable for underground haunched structure |
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| Publication Number | Publication Date |
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| CN218894408U true CN218894408U (en) | 2023-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222998988.8U Active CN218894408U (en) | 2022-11-10 | 2022-11-10 | Concrete formwork connecting piece and internal support formwork suitable for underground haunched structure |
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| Country | Link |
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| CN (1) | CN218894408U (en) |
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2022
- 2022-11-10 CN CN202222998988.8U patent/CN218894408U/en active Active
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