CN211081884U - Inverted arch one-time pouring combined steel formwork - Google Patents
Inverted arch one-time pouring combined steel formwork Download PDFInfo
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- CN211081884U CN211081884U CN201921315001.XU CN201921315001U CN211081884U CN 211081884 U CN211081884 U CN 211081884U CN 201921315001 U CN201921315001 U CN 201921315001U CN 211081884 U CN211081884 U CN 211081884U
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Abstract
The utility model discloses an inverted arch one-time pouring combined steel template, which comprises a left arc-shaped steel template, a right arc-shaped steel template and an end steel template, wherein the left arc-shaped steel template and the right arc-shaped steel template respectively comprise an arc-shaped template and a vertical straight template, the arc-shaped template and the vertical straight template are connected through a first twisting seat, and the surface of the arc-shaped template forms an arc surface which is matched with an inverted arch pouring curve in tunnel construction design; the end steel form comprises left side location end mould, a plurality of ordinary end mould and the right side location end mould that connects gradually, left side arc steel form and right side arc steel form erect respectively and fix on left side location end mould and the right side location end mould, left side location end mould and right side location end mould are equipped with the cooperation respectively the arc location breach of left side arc steel form and right side arc steel form. The utility model has the characteristics of simple structure, convenient operation are effectual, can reduce the reinforcing bar quantity.
Description
Technical Field
The utility model relates to a tunnel construction technical field specifically is an invert once only pours combination steel form.
Background
At present, the tunnel secondary lining construction needs to carry out inverted arch and inverted arch backfill layered construction according to design requirements, and an inverted arch in a tunnel arch foot area needs to be poured into an arc shape, so that a tunnel lining structure forms a complete closed ring, the stress of the tunnel lining structure is more uniform, and the bearing capacity of the tunnel lining structure is improved. In the actual construction process on site, because of the defects of difficult positioning and fixing of the simple arc-shaped template, a large amount of steel bars are needed for fixing, the inverted arch pouring effect is not good, even the arc-shaped template can not be poured, the design requirement can not be met, and great potential quality hazards exist.
SUMMERY OF THE UTILITY MODEL
In order to overcome the shortcoming that prior art mentioned, the utility model aims at providing a simple structure, convenient operation, effectual and can reduce the combination steel form that is used for inverted arch layering to pour of reinforcing bar quantity.
The utility model provides an adopted technical scheme of its technical problem does: the inverted arch one-time pouring combined steel template comprises a left arc-shaped steel template, a right arc-shaped steel template and an end steel template, wherein the left arc-shaped steel template and the right arc-shaped steel template respectively comprise an arc-shaped template and a vertical straight template, the arc-shaped template and the vertical straight template are connected through a first twisting seat, and the surface of the arc-shaped template forms an arc-shaped surface matched with an inverted arch pouring curve in tunnel construction design; the end steel form comprises left side location end mould, a plurality of ordinary end mould and the right side location end mould that connects gradually, left side arc steel form and right side arc steel form erect respectively and fix on left side location end mould and the right side location end mould, left side location end mould and right side location end mould are equipped with the cooperation respectively the arc location breach of left side arc steel form and right side arc steel form.
Furthermore, the bottoms of the left side positioning end die, the right side positioning end die and all the common end dies are provided with Z-shaped step parts, and the step parts of the left side positioning end die, the right side positioning end die and all the common end dies are arranged on the same horizontal plane.
Furthermore, the left side positioning end die and the common end die, the right side positioning end die and the common end die and two adjacent common end dies are fixed through bolts, and the disassembly and the assembly are convenient.
Furthermore, an upper longitudinal beam, a middle longitudinal beam and a lower longitudinal beam are respectively arranged on the arc-shaped template and the vertical straight template, and a plurality of cross beams are arranged among the upper longitudinal beam, the middle longitudinal beam and the lower longitudinal beam at intervals for fixing.
Furthermore, a stress longitudinal beam is arranged between the arc-shaped template and the vertical straight template and is respectively connected with the upper part and the middle part of the arc-shaped template through two connecting rods, and the stress longitudinal beam is connected with the upper part of the vertical straight template through a bidirectional screw rod. One end of the bidirectional screw rod is connected with the stressed longitudinal beam through a second twisting seat, the other end of the bidirectional screw rod is connected with the vertical straight template through a third twisting seat, and the central axis of the stressed longitudinal beam and the rotation center of the third twisting seat are both arranged on a rotating surface which takes the connecting central line of the first twisting seat as an axis.
Furthermore, the connecting rods and the two-way screw rods are arranged at intervals along the longitudinal direction, the number of the two-way screw rods is two, and the two-way screw rods are arranged in an up-and-down symmetrical mode by taking the middle point of the central axis of the stressed longitudinal beam as the center.
Furthermore, the left side positioning end die, the right side positioning end die and the common end die are respectively provided with a framework which is distributed longitudinally and transversely, so that the structural stability of the left side positioning end die, the right side positioning end die and the common end die is enhanced.
Furthermore, two movable support rods are respectively arranged on the left positioning end die, the right positioning end die and the common end die, one end of each movable support rod is connected with the left positioning end die, the right positioning end die or the common end die through a fourth twisting seat, and the other end of each movable support rod is connected with the tray through a fifth twisting seat. The movable support rod is composed of two steel pipes which are sleeved with each other, adjusting holes are formed in the two steel pipes respectively, and fixing screws capable of adjusting the total length of the two steel pipes are mounted on the adjusting holes.
The utility model has the advantages that: the utility model has the characteristics of simple structure, convenient operation, stability and effectiveness; the utility model discloses constitute by left side arc steel form, right side arc steel form and end steel form, left side arc steel form and right side arc steel form erect fixedly with the end steel form respectively, template simple structure, construction convenience, it is fixed swift.
When the inverted arch is cast, the concrete can be poured into the design arc along the stainless steel panel of the arc-shaped template in the tunnel arch springing area, after the inverted arch is poured and solidified to reach the design strength, inverted arch filling is directly carried out between the vertical straight templates of the left and right arc-shaped steel templates, and the inverted arch arc-shaped template and the pouring surface can be directly separated through the bidirectional screw rod after the inverted arch filling is completed, so that the purpose of rapid layered construction of the inverted arch is achieved. Meanwhile, the bottom of the end steel template is designed into a Z-shaped step part which is used for pouring the inverted arch into a step shape at the end position during inverted arch pouring, so that construction joints for inverted arch pouring and inverted arch filling are not in the same longitudinal section during two times of inverted arch pouring, and the waterproof capability of the inverted arch is improved.
Drawings
Fig. 1 is a top view of the overall structure of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a front view of the left arc-shaped steel form of FIG. 1;
FIG. 4 is a top view of the left arc-shaped steel form of FIG. 1;
FIG. 5 is a front view of the right arc-shaped steel form of FIG. 1;
FIG. 6 is a top view of the right arc-shaped steel form of FIG. 1;
FIG. 7 is a front view of the left hand positioning end die of FIG. 2;
FIG. 8 is a front view of the right positioning end die of FIG. 2;
FIG. 9 is a front view of the generic end mold of FIG. 2;
FIG. 10 is a left side view of the generic end mold of FIG. 2;
FIG. 11 is a left side view of the left positioning end die of FIG. 2;
fig. 12 is a schematic structural view of the movable support rod in fig. 11.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 12, the inverted arch is poured with the combined steel formwork at one time, which is composed of a left arc-shaped steel formwork 1, a right arc-shaped steel formwork 2 and an end steel formwork 3; the left arc steel moulding plate 1 and the end steel moulding plate 3 are fixedly erected, and the right arc steel moulding plate 2 and the end steel moulding plate 3 are fixedly erected.
As shown in fig. 3 to 6, the left arc-shaped steel formwork 1 and the right arc-shaped steel formwork 2 are symmetrically arranged and respectively comprise an arc-shaped formwork 7 and a vertical straight formwork 8, and the lower parts of the arc-shaped formwork 7 and the vertical straight formwork 8 are connected through a first hinge base 101; the upper, middle and lower parts of the arc-shaped template 7 and the vertical straight template 8 are respectively provided with an upper longitudinal beam 10, a middle longitudinal beam 11 and a lower longitudinal beam 12, and cross beams 17 are arranged among the upper longitudinal beam 10, the middle longitudinal beam 11 and the lower longitudinal beam 12 at intervals for fixing; stress longitudinal beams 13 are further arranged between the arc-shaped template 7 and the vertical straight template 8, the upper longitudinal beams 10 and the middle longitudinal beams 11 on the upper portion and the middle portion of the arc-shaped template 7 are connected with the stress longitudinal beams 13 through connecting rods 14, and the stress longitudinal beams 13 are connected with the upper longitudinal beams 10 of the vertical straight template 8 through bidirectional screw rods 15. One end of the bidirectional screw 15 is connected 102 to the stressed longitudinal beam through a second hinge base, the other end of the bidirectional screw 15 is connected to the vertical straight template through a third hinge base 103, and the central axis of the stressed longitudinal beam 13 and the rotation center of the third hinge base 103 are both on a rotation surface with the connecting central line of the first hinge base 101 as an axis. Before the inverted arch is poured, the arc-shaped template 7 can rotate around the first hinge base 101 by adjusting the bidirectional screw rod 15, so that the radian and the angle of the arc-shaped template 7 meet the design requirements; after the inverted arch is poured, the arc-shaped template 7 can rotate around the first hinge base 101 by adjusting the bidirectional screw 15, so that the arc-shaped template 7 is separated from a concrete pouring surface.
As shown in fig. 3 to 6, the arc-shaped curve of the arc-shaped formwork 7 is matched with an inverted arch casting curve in tunnel construction design, and the panels 16 of the arc-shaped formwork 7 and the vertical straight formwork 8 are made of stainless steel plates.
As shown in fig. 1 to 4, the connecting rods 14 are arranged along the longitudinal spaced cross beams 17, and two bidirectional screw rods 15 are symmetrically arranged along the longitudinal direction with the midpoint of the central axis of the stressed longitudinal beam 13 as the center, so that the structure is more stable.
As shown in fig. 2 and 7 to 11, the end steel molding plate 3 is composed of a left side positioning end mold 4, a plurality of common end molds 6 and a right side positioning end mold 5 which are connected in sequence, the left side positioning end mold 4 and the right side positioning end mold 5 are respectively provided with arc positioning notches, and the arc of the positioning notches is the same as the nominal size of the arc molding plate 7 of the left side arc steel molding plate 1 and the right side arc steel molding plate 2.
As shown in fig. 2 and 7 to 11, the left positioning end die 4, the right positioning end die 5 and the common end die 6 are respectively provided with a framework 18 which is arranged horizontally and vertically, and are respectively provided with two movable support rods 19, one end of each movable support rod 19 is connected with the framework 18 on the left positioning end die, the right positioning end die or the common end die through a fourth twisting seat 104, and the other end is connected with the tray 20 through a fifth twisting seat 105. The movable support rod 19 is composed of two steel pipes 21 which are sleeved with each other, adjusting holes 22 are formed in the two steel pipes respectively, and fixing screws 23 which can adjust the overall length of the two steel pipes are mounted on the adjusting holes 22. When the left side positioning end die 4, the right side positioning end die 5 and the common end die 6 are installed, the length of the steel pipe 21 is adjusted through the elastic fixing screws 23, so that the length of the movable supporting rod 19 is adjusted, the tray 20 connected with the end of the movable supporting rod is in contact with the ground, and the left side positioning end die 4, the right side positioning end die 5 and the common end die 6 are fixedly supported.
As shown in fig. 2 and 7 to 11, the lower portions of the left positioning end die 4, the right positioning end die 5 and the common end die 6 are all provided with a step 201 in a zigzag shape, two adjacent templates are fixed by a bolt 24, and the bottoms of all the templates are in the zigzag shape at the same level (the step 201 is shown in a dotted line in fig. 2 to be at the same horizontal plane).
Compared with the prior art, the specific implementation mode has the following positive effects:
the utility model consists of a left arc steel template 1, a right arc steel template 2 and an end steel template 3; the left arc steel formwork 1 and the end steel formwork 3 are fixedly erected, the right arc steel formwork 2 and the end steel formwork 3 are fixedly erected, and the formwork is simple in structure, convenient to construct and fast and fixed.
The left arc-shaped steel template 1 and the right arc-shaped steel template 2 of the specific embodiment of the utility model are respectively provided with an arc-shaped template 7 and a vertical straight template 8, and the lower parts of the arc-shaped template 7 and the vertical straight template 8 are connected through a twisting seat 9; the upper longitudinal beam 10 and the middle longitudinal beam 11 of the arc-shaped template 7 are connected with the stressed longitudinal beam 13 through the connecting rod 14, and the stressed longitudinal beam 13 is connected with the upper longitudinal beam 10 of the vertical straight template 8 through the bidirectional screw rod 15. When the inverted arch is poured, the concrete is poured into the design arc along the stainless steel panel of the arc-shaped template in the tunnel arch springing area, after the concrete poured into the inverted arch is solidified to reach the design strength, the inverted arch is directly filled between the vertical straight templates of the left and right arc-shaped steel templates, and therefore the purpose of rapid layered construction of the inverted arch is achieved. Meanwhile, the bottom of the end steel template is designed to be Z-shaped, the inverted arch is poured into a step shape at the end position during inverted arch pouring, construction joints for inverted arch pouring and inverted arch filling are not in the same longitudinal section during two times of inverted arch pouring, and waterproof capacity of the inverted arch is improved.
The utility model discloses a left side arc steel form and right side arc steel form erect fixedly with the end steel form respectively, pour the inverted arch into the design pitch arc in the tunnel hunch foot region, improved the bearing capacity of tunnel lining structure; the step-shaped inverted arch end is poured, so that the waterproof capability of the inverted arch is improved. Therefore, the utility model has the characteristics of simple structure, convenient operation are effectual.
The above mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention can not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the description of the present invention are still included in the scope of the present invention.
Claims (10)
1. The inverted arch one-time pouring combined steel template is characterized by comprising a left arc-shaped steel template, a right arc-shaped steel template and an end steel template, wherein the left arc-shaped steel template and the right arc-shaped steel template respectively comprise an arc-shaped template and a vertical straight template, the arc-shaped template and the vertical straight template are connected through a first twisting seat, and the surface of the arc-shaped template forms an arc-shaped surface matched with an inverted arch pouring curve in tunnel construction design; the end steel form comprises left side location end mould, a plurality of ordinary end mould and the right side location end mould that connects gradually, left side arc steel form and right side arc steel form erect respectively and fix on left side location end mould and the right side location end mould, left side location end mould and right side location end mould are equipped with the cooperation respectively the arc location breach of left side arc steel form and right side arc steel form.
2. The inverted arch one-time pouring combined steel formwork as claimed in claim 1, wherein stepped parts are arranged at the bottoms of the left side positioning end formwork, the right side positioning end formwork and all the common end formworks.
3. The inverted arch one-time pouring combined steel formwork as claimed in claim 2, wherein the step parts of the left side positioning end formwork, the right side positioning end formwork and all the common end formworks are arranged on the same horizontal plane.
4. The inverted arch one-time pouring combined steel formwork as claimed in claim 1, wherein the left side positioning end formwork and the common end formwork, the right side positioning end formwork and the common end formwork and two adjacent common end formworks are fixed through bolts.
5. The inverted arch one-time pouring combined steel formwork according to claim 1, wherein an upper longitudinal beam, a middle longitudinal beam and a lower longitudinal beam are respectively arranged on the arc formwork and the vertical straight formwork, and a plurality of cross beams are arranged among the upper longitudinal beam, the middle longitudinal beam and the lower longitudinal beam at intervals for fixing.
6. The inverted arch one-time pouring combined steel formwork according to claim 1 or 5, wherein a stressed longitudinal beam is further arranged between the arc formwork and the vertical straight formwork, the stressed longitudinal beam is respectively connected with the upper portion and the middle portion of the arc formwork through two connecting rods, and the stressed longitudinal beam is connected with the upper portion of the vertical straight formwork through a bidirectional screw rod.
7. The inverted arch one-time pouring combined steel formwork as claimed in claim 6, wherein one end of the bidirectional screw rod is connected with the stressed longitudinal beam through a second hinge base, the other end of the bidirectional screw rod is connected with the vertical straight formwork through a third hinge base, and a central axis of the stressed longitudinal beam and a rotation center of the third hinge base are both on a rotating surface with a central line of connection of the first hinge base as an axis.
8. The inverted arch one-time pouring combined steel formwork as claimed in claim 7, wherein the connecting rods and the two-way screw rods are longitudinally arranged at intervals, the number of the two-way screw rods is two, and the two-way screw rods are vertically and symmetrically arranged by taking the middle point of the central axis of the stressed longitudinal beam as a center.
9. The inverted arch one-time pouring combined steel formwork as claimed in claim 1, wherein the left positioning end formwork, the right positioning end formwork and the common end formwork are respectively provided with a framework which is distributed vertically and horizontally, the left positioning end formwork, the right positioning end formwork and the common end formwork are respectively provided with two movable support rods, one end of each movable support rod is connected with the left positioning end formwork, the right positioning end formwork or the common end formwork through a fourth twisting seat, and the other end of each movable support rod is connected with the tray through a fifth twisting seat.
10. The inverted arch one-time pouring combined steel formwork as claimed in claim 9, wherein the movable support rod is composed of two steel pipes sleeved with each other, adjusting holes are respectively formed in the two steel pipes, and fixing screws capable of adjusting the overall length of the two steel pipes are mounted on the adjusting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921315001.XU CN211081884U (en) | 2019-08-14 | 2019-08-14 | Inverted arch one-time pouring combined steel formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921315001.XU CN211081884U (en) | 2019-08-14 | 2019-08-14 | Inverted arch one-time pouring combined steel formwork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211081884U true CN211081884U (en) | 2020-07-24 |
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ID=71637593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921315001.XU Active CN211081884U (en) | 2019-08-14 | 2019-08-14 | Inverted arch one-time pouring combined steel formwork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211081884U (en) |
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2019
- 2019-08-14 CN CN201921315001.XU patent/CN211081884U/en active Active
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