CN220433734U - A template system for construction of underground space concrete structure - Google Patents
A template system for construction of underground space concrete structure Download PDFInfo
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- CN220433734U CN220433734U CN202321773582.8U CN202321773582U CN220433734U CN 220433734 U CN220433734 U CN 220433734U CN 202321773582 U CN202321773582 U CN 202321773582U CN 220433734 U CN220433734 U CN 220433734U
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- 238000010276 construction Methods 0.000 title claims abstract description 26
- 239000002184 metal Substances 0.000 claims description 60
- 238000009415 formwork Methods 0.000 claims description 33
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 230000000712 assembly Effects 0.000 claims description 13
- 238000000429 assembly Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 210000000746 body region Anatomy 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides a template system for construction of underground space concrete structure, it mainly comprises template subassembly, adjustable height and mobilizable base, be used for fixing the template subassembly with the support of base, and a plurality of relative both ends are used for respectively connect template subassembly and the stay bar subassembly etc. in wall body region that waits to link. Compared with the prior art, the template system provided by the application. The device can be conveniently installed, reduces dead weight and reduces occupied space.
Description
Technical Field
The utility model relates to the field of concrete construction, in particular to a template system for underground space concrete structure construction.
Background
At present, the construction of an open cut method adopting an underground diaphragm wall supporting mode mainly comprises the steps of firstly excavating a foundation pit or a trench downwards from the earth surface until the designed elevation, then sequentially constructing from the bottom to the top from a substrate, and finally backfilling earth after finishing an underground engineering main body structure, thus the construction of the underground engineering is finished, the construction of the open cut method is simple and convenient, and the underground engineering near the surface of a stratum (shallow buried) is mainly constructed by adopting the open cut method, such as house foundations, underground shops, underground streets, underground parking lots, subway stations, civil air defense engineering, underground industrial buildings and the like.
However, such underground space structure concrete structures are difficult to use in construction in a movable trolley formwork system similar to that commonly used in tunnels due to the influence of the geometric dimensions and the degree of shape regularity of the underground space. In order to improve the work efficiency of the template engineering, reduce the number of the joints and improve the apparent quality of concrete, a large-area steel template with a single width is mostly adopted in the construction of the side wall of the underground space. For an underground space adopting an underground continuous wall supporting structure, an underground continuous wall is often used as an outer side template of a side wall, and an inner side template adopts a steel template with a large single-frame area. In order to control the deformation of the formwork under the action of horizontal force before concrete solidification and ensure the rigidity and flatness of the formwork, the back of the formwork is generally provided with 2-3 trapezoidal truss supports with larger geometric dimensions. 2 leveling screws are arranged on each trapezoid support so as to adjust the elevation and the verticality of the template. When the template is installed, the adjacent two trapezoid trusses are supported, connected and fixed by the scaffold rod piece, and the bottom ends of the trapezoid trusses are firmly supported and fixed by the diagonal rods. Therefore, the template system and the installation method have the following defects: 1. the template system has great weight; 2. the trapezoidal truss support occupies large space; 3. lifting equipment is required for any position adjustment; 4. the installation and the dismantling costs are high.
Therefore, how to provide a formwork system for underground space concrete structure construction, so as to facilitate installation, reduce dead weight and occupy less space is a technical problem to be solved in the utility model.
Disclosure of Invention
In order to overcome the defects or shortcomings of the prior art, the technical problem to be solved by the utility model is how to provide a formwork system for construction of an underground space concrete structure, so that the formwork system is convenient to install, reduces dead weight and reduces occupied space.
In order to solve the technical problems, the utility model provides a formwork system for construction of an underground space concrete structure, comprising:
a template assembly;
a height-adjustable and movable base;
a bracket for securing the template assembly and the base;
and the plurality of opposite ends are respectively used for connecting the template assembly and the pull rod assembly of the wall area to be connected, so that the space between the template assembly and the wall area forms a space for pouring concrete.
Further preferably, the template assembly includes: the steel support comprises a metal template, a plurality of reinforcing ribs connected with the metal template and a profile steel member connected with the metal template and used for being matched and connected with the support; wherein, a pull rod hole for inserting one end of the pull rod assembly is formed on the metal template.
Further preferably, the metal template includes: one or more than two frame plates are spliced.
Further preferably, the metal template is a steel template or a composite template.
Further preferably, the base comprises a base body, pulleys arranged below the base body, and a plurality of screw rod assemblies arranged on the base body and used for supporting the base body; wherein, the screw assembly includes: the screw is in threaded connection with the first adjusting nut and the second adjusting nut which are positioned on two opposite sides of the base body; the first adjusting nut and the second adjusting nut are used for adjusting the height of the base body; the base is provided with at least two screw assemblies in a direction perpendicular to the die plate assemblies.
Further preferably, the bracket includes: the device comprises a plurality of transverse metal connecting rods connected with the metal templates, a plurality of trapezoid connecting rod frames which are arranged at intervals and are vertically connected with the transverse metal connecting rods, and fixed connecting rods used for connecting two opposite sides of the trapezoid connecting rod frames; at least two reinforcing connecting rods are arranged in the trapezoid connecting rod frame, and triangular distribution is formed between the two connected reinforcing connecting rods and the transverse metal connecting rods.
Further preferably, the pull rod assembly includes: one end is used for passing through the pull rod hole, the other end is used for being connected with the wall body area, the lock nut is in threaded connection with the pull rod and used for locking the pull rod and the metal template, and the pressing plate is sleeved on the pull rod and used for pressing the metal template under the action of the lock nut.
Further preferably, the method further comprises: the end cap is sleeved on the stay bar and is in threaded connection with the outer surface of the stay bar; wherein, the end nut is used for matching with the lock nut so as to support against the other side of the metal template.
Further preferably, the method further comprises: and the water stop plate is arranged on the stay bar and is adjacent to the end plate, wherein the water stop plate is used for propping against the outer wall of the wall body area.
Further preferably, the method further comprises: the groove box is sleeved outside the lock nut and used for propping against the metal template; wherein the inside of the groove box is used for forming a space isolated from the outside.
Further preferably, the material of the groove box is any one or combination of wood board, metal board or plastic.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model provides a template system for construction of underground space concrete structure can easy to assemble, reduces the dead weight, reduces the space that occupies.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:
fig. 1: the installation schematic diagram of the formwork system for underground space concrete structure construction in the first embodiment of the utility model;
fig. 2: a schematic structural diagram of a module assembly in a first embodiment of the present utility model;
fig. 3: a schematic cross-sectional structure shown in fig. 2 A-A;
fig. 4: a schematic structural diagram of a bracket in a first embodiment of the present utility model;
fig. 5: schematic cross-sectional structure shown in fig. 4B-B;
fig. 6: schematic cross-sectional structure shown in fig. 4C-C;
fig. 7: a schematic structural diagram of a pull rod assembly according to a first embodiment of the present utility model;
reference numerals: form assembly 1, metal form 11, reinforcing ribs 12, tie rod holes 13, brackets 2, transverse metal links 21, trapezoidal link frames 22, reinforcing links 221, fixed links 222, base 3, base body 31, pulleys 32, screw assemblies 33, screw assemblies 34, first adjustment nuts 331, second adjustment nuts 332, tie rod assemblies 5, tie rods 51, lock nuts 52, pressure plates 53, end plates 54, stay rods 55, end nuts 56, water stop plates 57, channel boxes 58, wall areas 6, side walls 7.
Detailed Description
The conception, specific structure, and technical effects of the present utility model will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present utility model.
Example 1
As shown in fig. 1 to 7, a first embodiment of the present utility model provides a formwork system for construction of a concrete structure of an underground space, which is mainly composed of a formwork assembly 1, a height-adjustable and movable base 3, a bracket 2 for fixing the formwork assembly 1 and the base 3, and a plurality of tie rod assemblies 5, etc. having opposite ends for connecting the formwork assembly 1 and a wall area 6 to be connected, respectively.
The space between the formwork component 1 and the wall body area 6 can be formed into a concrete pouring space under the surrounding of the underground side wall 7 and/or the corresponding closed side plate.
From the above, it can be seen that: the height-adjustable movable base 3 is adopted in the formwork system in the embodiment, so that the height can be adjusted and moved without a crane, and the requirement on the fixing fastness of the bracket 2 can be reduced by connecting and fixing the formwork component 1 through the pull rod component 5, so that the structure can be simplified, the volume and the dead weight of the occupied space can be reduced, and the formwork component 1 can be well prevented from deforming after concrete is poured in the space for pouring concrete and in the curing process. Therefore, the upper structure can facilitate the installation of the template system, reduce the dead weight of the template system, reduce occupied space and further reduce the manufacturing, installing and dismantling cost of the template assembly 1.
Specifically, in order to enhance the structural strength of the form assembly 1 to prevent deformation thereof during use, the form assembly 1 includes: a metal form 11, a plurality of reinforcing ribs 12 connected to the metal form 11, and a section steel member connected to the metal form 11 and adapted to be fitted to the connecting bracket 2. Wherein, the reinforcing rib 12 and the profile steel member are arranged on one surface for connecting the bracket 2. The rigidity of the metal template 11 can be further enhanced and the assembly with the bracket 2 can be realized by arranging the profile steel component corresponding to the bracket 2. Of these, the reinforcing ribs 12 are preferably steel ribs.
Further preferably, the reinforcing ribs 12 may be disposed in a crisscross or grid-like manner so as to be welded to the back surface of the metal form 11, thereby ensuring rigidity in the plane of the metal form 11.
Further preferably, in order to facilitate the installation of the tie rod assembly 5 and improve the installation accuracy of the metal mold plate 11, the metal mold plate 11 is provided with a tie rod hole 13 for inserting one end of the tie rod assembly 5. Preferably, the pull rod holes 13 are distributed in an array, symmetrically distributed on the circumferential interface or two opposite sides of the frame plate, and equidistantly arranged.
Further preferably, the metal form 11 may be formed by splicing one integrally formed panel or two or more frame plates or the like for satisfying the use requirement.
Further preferably, the metal form 11 is a steel form or a composite form.
Further preferably, in order to facilitate the movement and height adjustment of the base 3, the base 3 includes a base body 31, a pulley 32 disposed below the base body 31, and a plurality of screw assemblies 33 disposed on the base body 31 and for supporting the base body 31; wherein the screw assembly 33 comprises: the screw rod is in threaded connection with the first adjusting nut 331 and the second adjusting nut 332 which are positioned on two opposite sides of the base body 31; the first and second adjustment nuts 331 and 332 are used to adjust the height of the base body 31.
Wherein the base 3 is provided with at least two screw assemblies, such as screw assembly 33 and screw assembly 34 shown in fig. 5, in a direction perpendicular to the formwork assembly 1. For example, the length of the screw may be adjusted by the first adjusting nut 331 and the second adjusting nut 332 to achieve the purpose of adjusting the elevation of the template assembly 1. The base body 31 can be obliquely arranged through the lengths of the screws in the two distributed screw assemblies 33, so that the inclination angle of the template is adjusted to adapt to the side wall 7 with thickness variation or the closed side plate and the like. The pulley 32 in the present embodiment may be a universal wheel welded below the base body 31.
Further preferably, in order to simplify the structure of the bracket 2 and simultaneously secure the connection strength thereof, the bracket 2 includes: a plurality of transverse metal links 21 connected to the metal form 11, a plurality of trapezoidal link frames 22 spaced apart and vertically connected to the transverse metal links 21, and fixing links 222 for connecting opposite sides of the trapezoidal link frames 22. Wherein at least two reinforcing links 221 are arranged in the trapezoidal link frame 22, and triangular distribution is formed between the two connected reinforcing links 221 and the transverse metal links 21. Preferably, the metal link and the trapezoidal link frame 22 in the present embodiment are made of steel.
Further preferably, the pull rod assembly 5 includes: a tie rod 51 having one end for passing through the tie rod hole 13 and the other end for connecting with the wall area 6, a lock nut 52 screwed with the tie rod 51 for locking the tie rod 51 and the metal form 11, and a pressing plate 53 sleeved on the tie rod 51 for pressing the metal form 11 under the action of the lock nut 52. One metal template 11 or two adjacent metal templates 11 can be compressed by the pressure plate 53 to realize splicing, thereby not only facilitating the installation of a template system and improving the installation precision, but also greatly reducing the volume and weight of the frame plates required to be assembled by the metal templates 11, further better avoiding deformation of the metal templates 11 caused by compression, and further reducing the manufacturing, installing and dismantling costs of the metal templates 11.
Further preferably, the pull rod assembly 5 further comprises: an end plate 54 connected with the tail end of the pull rod 51 and used for being pre-buried in the wall area 6, a stay rod 55 with one end connected with the end plate 54 and sleeved on the pull rod 51, and a head nut 56 sleeved on the stay rod 55 and connected with the outer surface of the stay rod 55 in a threaded manner; wherein the end nut 56 is adapted to engage the lock nut 52 to abut the other side of the metal form 11. The stay bar 55 not only facilitates the installation and connection of the stay bar assembly 5, but also provides a supporting force for the metal form 11 to reduce the pressure applied to the bracket 2 and further prevent the deformation of the metal form 11. And, the length of the space for casting concrete is adjusted by screwing the end nut 56 to improve the accuracy of the installation of the formwork assembly 1. In addition, when the form assembly 1 is removed, the end cap 56 may be unscrewed for reuse.
Further preferably, the pull rod assembly 5 further comprises: a water stop plate 57 provided on the stay 55 and provided adjacent to the end plate 54, wherein the water stop plate 57 is for abutting against the outer wall of the wall area 6. The water stop plate 57 not only can play a role in stopping water at the place where the end plate 54 is embedded, but also can play a role in enhancing the connection fastness. Among them, the water stop plate 57 is preferably a ring-shaped plate.
Further preferably, the pull rod assembly 5 further comprises: the groove box 58 is sleeved outside the lock nut 52 and used for supporting the metal template 11; wherein the inside of the slot box 58 is used to form a space isolated from the outside. The groove box 58 can provide an operation space for cutting off and plugging the pull rod 51 after the template assembly 1 is removed conveniently.
Further preferably, the material of the groove box 58 is any one or a combination of wood, metal or plastic.
In addition, in order to explain the working principle of the above-mentioned template system, the following brief description will be made:
step one, welding a pull rod 51 on an embedded part in a wall body area 6 of a diaphragm wall when a side wall 7 of an underground space is bound through a reinforcement cage;
step two, screwing the end nut into the stay bar 55 and adjusting the end nut to a specified length;
step three, installing a groove box 58;
step four, installing the bracket 2, the metal template 11 and the like to realize that the bracket 2 reaches a specified elevation through adjusting a screw rod after the template system is assembled;
step five, installing a pressing plate 53 and screwing a tip nut 56;
step six, pouring concrete in the concrete pouring space, and after the demolding strength is reached, removing the lock nut 52 and the pressing plate 53;
step seven, moving the template system to the working face of the next wall area;
step eight, screwing out the end nut 56 and removing the groove box 58;
step nine, cutting off the pull rod 51, and plugging the notch of the groove box 58 by fine stone concrete.
The above embodiments are only for illustrating the technical scheme of the present utility model, not for limiting the same, and the present utility model is described in detail with reference to the preferred embodiments only. It will be understood by those skilled in the art that various modifications and equivalent substitutions may be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model, and it is intended to cover the scope of the claims of the present utility model.
Claims (10)
1. A formwork system for construction of a concrete structure of an underground space, comprising:
a template assembly;
a height-adjustable and movable base;
a bracket for securing the template assembly and the base;
and the plurality of opposite ends are respectively used for connecting the template assembly and the pull rod assembly of the wall area to be connected, so that the space between the template assembly and the wall area forms a space for pouring concrete.
2. The formwork system for construction of a concrete structure of an underground space of claim 1, wherein the formwork assembly comprises: the steel support comprises a metal template, a plurality of reinforcing ribs connected with the metal template and a profile steel member connected with the metal template and used for being matched and connected with the support; wherein, a pull rod hole for inserting one end of the pull rod assembly is formed on the metal template; the metal template comprises: one or more than two frame plates are spliced.
3. The formwork system for underground space concrete structure construction of claim 2, wherein the metal formwork is a steel formwork or a composite material formwork.
4. The formwork system for construction of an underground space concrete structure of claim 1, wherein the base comprises a base body, pulleys arranged below the base body, and a plurality of screw assemblies arranged on the base body and used for supporting the base body; wherein, the screw assembly includes: the screw is in threaded connection with the first adjusting nut and the second adjusting nut which are positioned on two opposite sides of the base body; the first adjusting nut and the second adjusting nut are used for adjusting the height of the base body; the base is provided with at least two screw assemblies in a direction perpendicular to the die plate assemblies.
5. The formwork system for construction of a concrete structure of an underground space of claim 2, wherein the bracket comprises: the device comprises a plurality of transverse metal connecting rods connected with the metal templates, a plurality of trapezoid connecting rod frames which are arranged at intervals and are vertically connected with the transverse metal connecting rods, and fixed connecting rods used for connecting two opposite sides of the trapezoid connecting rod frames; at least two reinforcing connecting rods are arranged in the trapezoid connecting rod frame, and triangular distribution is formed between the two connected reinforcing connecting rods and the transverse metal connecting rods.
6. The formwork system for construction of a concrete structure of an underground space of claim 2, wherein the tie bar assembly comprises: one end is used for passing through the pull rod hole, the other end is used for being connected with the wall body area, the lock nut is in threaded connection with the pull rod and used for locking the pull rod and the metal template, and the pressing plate is sleeved on the pull rod and used for pressing the metal template under the action of the lock nut.
7. The formwork system for construction of a concrete structure of an underground space of claim 6, wherein the tie bar assembly further comprises: the end cap is sleeved on the stay bar and is in threaded connection with the outer surface of the stay bar; wherein, the end nut is used for matching with the lock nut so as to support against the other side of the metal template.
8. The formwork system for construction of a concrete structure of an underground space of claim 7, wherein the tie bar assembly further comprises: and the water stop plate is arranged on the stay bar and is adjacent to the end plate, wherein the water stop plate is used for propping against the outer wall of the wall body area.
9. The formwork system for construction of a concrete structure of an underground space of claim 7, wherein the tie bar assembly further comprises: the groove box is sleeved outside the lock nut and used for propping against the metal template; wherein the inside of the groove box is used for forming a space isolated from the outside.
10. The formwork system for construction of a concrete structure of an underground space of claim 9, wherein the material of the trough box is any one of or a combination of wood, metal or plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321773582.8U CN220433734U (en) | 2023-07-06 | 2023-07-06 | A template system for construction of underground space concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321773582.8U CN220433734U (en) | 2023-07-06 | 2023-07-06 | A template system for construction of underground space concrete structure |
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| Publication Number | Publication Date |
|---|---|
| CN220433734U true CN220433734U (en) | 2024-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321773582.8U Active CN220433734U (en) | 2023-07-06 | 2023-07-06 | A template system for construction of underground space concrete structure |
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| Country | Link |
|---|---|
| CN (1) | CN220433734U (en) |
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2023
- 2023-07-06 CN CN202321773582.8U patent/CN220433734U/en active Active
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