CN211645995U - Composite hoop support structure - Google Patents
Composite hoop support structure Download PDFInfo
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- CN211645995U CN211645995U CN201821283809.XU CN201821283809U CN211645995U CN 211645995 U CN211645995 U CN 211645995U CN 201821283809 U CN201821283809 U CN 201821283809U CN 211645995 U CN211645995 U CN 211645995U
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Abstract
The utility model discloses a combined hoop support structure, wherein a built-in ring plate is arranged at the inner side of a pier stud reinforcement cage, and the built-in ring plate is welded and connected with longitudinal reinforcement of the reinforcement cage; a pressure diffusion plate and a transverse placing body are arranged on the outer side of the built-in annular plate; arranging a reinforcing connecting rib between the pressure diffusion plate and the built-in annular plate, and arranging a first prestressed rib through hole in the pier stud; arranging a first prestressed lacing wire inside the transverse laying body; two semicircular fastening hoop plates are arranged on the upper surface of the transverse shelving body and the outer side of the pier stud, a stud connector and a connecting lug plate are respectively arranged at two ends of each fastening hoop plate, and a fastening bolt penetrating hole is formed in each connecting lug plate; the two ends of the connected fastening hoop plate are respectively connected through a connecting stud and a fastening bolt; the platform supporting body is arranged on the outer side of the fastening hoop plate. The utility model discloses can promote cast-in-place box girder formwork construction quality, improve bailey roof beam hoist and mount and formwork erection efficiency, reduce the template and demolish the degree of difficulty.
Description
Technical Field
The utility model relates to a cast-in-place box girder construction method, in particular to template field simple to operate, template prop up and establish that intensity is high, bailey roof beam hoist and mount is convenient, the efficient combined type staple bolt supporting structure of falling die belongs to the bridge engineering field, is applicable to cast-in-place box girder and pours construction engineering.
Background
With the continuous development of modern bridge construction technology, the cast-in-place box girder becomes a main method for bridge construction with the advantages of convenient construction, simple technology, wide applicability, no need of a prefabricated site and the like. However, during the cast-in-place construction of the box girder, the problems that the hoisting of the bracket and the bailey girder is difficult, the formwork supporting quality is difficult to control and the like exist, the on-site construction efficiency is seriously influenced, and the cast-in-place construction cost of the box girder is increased to a certain extent.
The existing anchor ear support structure usually utilizes the maximum static friction force generated by clamping the anchor ear and the pier stud to resist the vertical load. In order to ensure the close contact between the anchor ear and the pier stud, a geotextile or a rubber sheet is generally laid between the anchor ear and the pier stud. Although the construction structure can meet the functional problem of the hoop support structure during construction, the construction structure still has many defects, such as low connection strength of the support body and the pier, difficult guarantee of structural integrity and the like.
In summary, although the existing construction method obtains a better construction effect under a proper working condition, the existing construction method has the defects of reducing the installation difficulty of a bracket system, improving the field construction efficiency and the like. In view of this, in order to effectively reduce the hoisting difficulty of the bracket system, improve the accuracy of the height control of the box girder template, and improve the on-site construction efficiency, the invention is urgently needed to provide the composite hoop bracket structure which can not only improve the construction quality of the cast-in-place box girder template, but also improve the hoisting efficiency and the template installation construction efficiency of the bailey girder, and can also improve the template removal construction speed.
Disclosure of Invention
An object of the utility model is to provide a not only can promote cast-in-place box girder formwork construction quality, can improve bailey roof beam hoist and mount and formwork erection efficiency of construction moreover, can also improve the combined type staple bolt supporting structure that the construction speed was demolishd to the template.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
a composite hoop bracket structure is characterized in that a built-in ring plate is arranged on the inner side of a pier stud reinforcement cage and is welded with longitudinal reinforcements of the reinforcement cage; a pressure diffusion plate and a transverse placing body are arranged on the outer side of the built-in annular plate; arranging a reinforcing connecting rib between the pressure diffusion plate and the built-in annular plate, and arranging a first prestressed rib through hole in the pier stud; arranging a first prestressed lacing wire inside the transverse laying body; two semicircular fastening hoop plates are arranged on the upper surface of the transverse shelving body and the outer side of the pier stud, a stud connector and a connecting lug plate are respectively arranged at two ends of each fastening hoop plate, and a fastening bolt penetrating hole is formed in each connecting lug plate; the two ends of the connected fastening hoop plate are respectively connected through a connecting stud and a fastening bolt; a platform supporting body is arranged on the outer side of the fastening hoop plate, a second prestressed lacing wire and a third prestressed lacing wire are fastened respectively, and then the transverse bearing plate is arranged on the upper surface of the platform supporting body; arranging an elevation adjusting device on the transverse bearing plate; the main beam, the Bailey beam and the distribution beam are sequentially arranged on the transverse bearing plate (15), and the beam template is arranged on the distribution beam.
The built-in annular plate is in an annular shape, the outer diameter of the built-in annular plate is the same as the inner diameter of the pier stud reinforcement cage, and the inner side of the built-in annular plate is provided with an in-ring connecting rib which is welded with the pier stud reinforcement cage.
The stud connecting body is formed by rolling a steel plate, is welded with the fastening hoop plate and is uniformly distributed at intervals along the height direction of the fastening hoop plate; the cross section of the stud connector is rectangular, and a stud through hole is formed in the centroid of the stud connector.
The platform support body consists of a first connecting body, a second prestressed lacing wire and a third prestressed lacing wire, and a reinforcing angle rib is arranged between the first connecting body and the second connecting body; the second prestressed lacing wire and the third prestressed lacing wire are respectively arranged between the first connecting bodies and between the second connecting bodies.
The elevation adjusting device consists of a bottom bearing plate, a variable displacement adjusting body, a fixed displacement adjusting body and a top bearing plate; the elevation adjusting device is provided with 2-4 variable displacement adjusting bodies in the cross section direction of the cast-in-place box girder, and each variable displacement adjusting body adopts an independent pressure control mode.
The utility model has the following characteristics and beneficial effects
(1) The inner side of the pier stud reinforcement cage is provided with the built-in ring plate, and the built-in ring plate is provided with the intra-ring connecting rib, so that the integrity of the built-in ring plate and the pier stud can be effectively improved; the pressure diffuser plate and the first prestress lacing wire can effectively improve the pressure resistance and the shearing resistance of the transverse shelving body.
(2) The second prestressed lacing wire and the third prestressed lacing wire are arranged on the platform supporting body, so that the connection strength of the supporting body and the pier stud is enhanced, and the integrity of the structure is improved.
(3) The elevation adjusting device can improve the accuracy of the height control of the box girder template and reduce the difficulty of the formwork falling construction.
Drawings
FIG. 1 is a schematic cross-sectional view of a support system of the cast-in-place box girder based on a composite hoop support of the utility model;
FIG. 2 is a cross-sectional view of the lateral rest portion of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the platform support of FIG. 1;
FIG. 4 is a schematic view of the elevation adjustment apparatus of FIG. 1;
fig. 5 is a cross-sectional view of the fastening cuff plate of fig. 1.
In the figure: 1-built-in ring plate; 2-pier stud reinforcement cage; 3-pier stud; 4-longitudinal steel bars of the steel bar cage; 5-a pressure diffusion plate; 6-transverse laying body; 7-reinforcing connecting ribs; 8-the first tendon passes through the hole; 9-a first pre-stressed lacing wire; 10-fastening hoop plate; 11-a peg connector; 12-a fastening bolt; 13-connecting ear plates; 14-fastening bolts pass through the holes; 15-transverse bearing plate; 16-a platform support; 17-elevation adjustment means; 18-a variable displacement adjustment body; 19-a fixed displacement adjuster; 20-a main beam; 21-beret beam; 22-distribution beam; 23-beam formworks; 24-intra-ring connecting ribs; 25-the peg passes through the hole; 26-a first linker; 27-a second linker; 28-a second pre-stressed lacing wire; 29-a third pre-stressed lacing wire; 30-reinforcing corner ribs; 31-a bottom carrier plate; 32-top bearing plate; 33-connecting pegs.
Detailed Description
Fig. 1 is a schematic cross-sectional view of a support system of a cast-in-place box girder based on a composite hoop support of the utility model, fig. 2 is a cross-sectional view of a horizontal shelf body of fig. 1, fig. 3 is a schematic cross-sectional view of a platform support of fig. 1, fig. 4 is a schematic cross-sectional view of an elevation adjusting device of fig. 1, and fig. 5 is a cross-sectional view of a fastening hoop plate of fig. 1. Referring to the combined type hoop bracket structure shown in fig. 1 to 5, an internal annular plate 1 is arranged on the inner side of a pier stud reinforcement cage 2, and the internal annular plate 1 is welded with a reinforcement cage longitudinal reinforcement 4; a pressure diffusion plate 5 and a transverse laying body 6 are arranged on the outer side of the built-in annular plate 1; a reinforcing connecting rib 7 is arranged between the pressure diffusion plate 5 and the built-in annular plate 1, and a first prestressed rib through hole 8 is arranged in the pier stud 3; a first prestressed lacing wire 9 is arranged in the transverse laying body 6; two semicircular fastening hoop plates 10 are arranged on the upper surface of the transverse shelving body 6 and the outer side of the pier stud 3, a stud connecting body 11 and a connecting lug plate 13 are respectively arranged at two ends of each fastening hoop plate 10, and a fastening bolt through hole 14 is arranged on each connecting lug plate 13; connecting two ends of the connected fastening hoop plate 10 through a connecting stud 33 and a fastening bolt 12 respectively; arranging a platform support body 16 on the outer side of the fastening hoop plate 10, respectively fastening a second prestressed lacing wire 28 and a third prestressed lacing wire 29, and arranging the transverse bearing plate 15 on the upper surface of the platform support body 16; an elevation adjusting device 17 is arranged on the transverse bearing plate 15; the main beam 20, the Bailey beam 21 and the distribution beam 22 are sequentially installed, and then the beam template 23 is hoisted to the distribution beam 22.
The built-in annular plate 1 is cylindrical, has the height of 0.5m, has the diameter the same as the inner diameter of the longitudinal steel bar 4 of the steel reinforcement cage, and is formed by rolling a steel plate with the thickness of 1cm, and the strength grade of the steel plate is Q235B.
The diameter of the pier stud reinforcement cage 2 is 700mm, and the longitudinal reinforcement 4 of the reinforcement cage adopts HRB335 reinforcement and has the diameter of 32 mm; the diameter of the pier stud 3 is 800mm, and the concrete strength grade is C40.
The pressure diffusion plate 5 is made of Q235B steel plate, the thickness is 1cm, the length is 0.5m, and the width is 15cm, so that the outer surface of the pressure diffusion plate 5 is flush with the surface of the pier stud 3.
The transverse shelving body 6 is arc-shaped, the inner surface of the transverse shelving body is flush with the outer surface of the pier stud 3, the transverse shelving body is prefabricated by adopting a steel plate with the thickness of 2cm, the length of the transverse shelving body is 20cm, and the width of the transverse shelving body is 20 cm.
The reinforcing connecting rib 7 is formed by cutting a twisted steel bar with the diameter of 25mm, and the length of the reinforcing connecting rib is 15 cm.
The first prestressed lacing wire 9 adopts HRB400 hot-rolled ribbed steel bars, the diameter is 32mm, and the length is 1 m; the first tendon passes through the hole 8 with an internal diameter of 40 mm.
Two semicircular fastening hoop plates 10 are arranged on the upper surface of the transverse shelving body 6 and the outer side of the pier stud; connecting two ends of the connected fastening hoop plate 10 through a connecting stud 33 and a fastening bolt 12 respectively; a stud connecting body 11 and a connection lug plate 13 are respectively arranged at two ends of the fastening hoop plate 10, and a fastening bolt through hole 14 is arranged on the connection lug plate 13.
The cross section of the fastening hoop plate 10 is semicircular, the diameter is 800mm, the height is 60cm, the fastening hoop plate is formed by pressing a steel plate with the thickness of 2cm, and the strength of the steel plate is Q235B.
The stud connector 11 is arranged on the outer side of the fastening hoop plate 10 and is formed by rolling a steel plate with the thickness of 10mm and the strength grade of Q235, and the plane size is 100mm multiplied by 100 mm; the connecting bolt 33 adopts a screw rod with the diameter of 30mm and the length of 80 cm; the peg pass-through hole 25 is sized to match the attachment peg 33.
The fastening bolt 12 is a hexagon bolt having a diameter of 20 mm.
The connecting ear plate 13 is made of a steel plate with the thickness of 2cm and the thickness of 10cm multiplied by 10cm, and is welded at two ends of the fastening hoop plate 10; the fastening bolt passes through the hole 14 with a diameter of 50 mm.
The transverse bearing plate 15 is made of a 20cm × 30cm steel plate with a thickness of 2 cm.
The platform support 16 is formed by welding steel plates with the thickness of 2cm, and the bottom surface and the side surface are not closed.
The elevation adjusting means 17 is constituted by a variable displacement adjusting body 18, a fixed displacement adjusting body 19, a bottom bearing plate 31 and a top bearing plate 32.
The variable displacement adjusting body 18 is an oil jack, and the maximum jacking tonnage is 20 tons.
The fixed displacement adjusting body 19 is formed by rolling a section steel beam;
the main beam 20 is H-shaped steel with the thickness of 150mm multiplied by 150mm, and the thickness of a web plate is 10 mm.
The Bailey beam 21 adopts a 321 type 3000mm multiplied by 1500mm multiplied by 176mm steel frame.
The distribution beam 22 is an I-beam, and the size of a specific component is calculated according to the actual working condition.
The beam template 23 is formed by rolling a steel plate, and the thickness of the steel plate is 2 mm.
The intra-ring connecting rib 24 adopts a threaded steel bar with the diameter of 32mm and the length of 10 cm.
The first connecting body 26 and the second connecting body 27 are both cut from a steel plate with a thickness of 2 cm.
The second prestressed lacing wire 28 and the third prestressed lacing wire 29 both adopt HRB400 hot rolled rib steel bars, the diameter is 32mm, and the lengths are 1.5m and 2m respectively.
The reinforcing angle bar 30 adopts a threaded steel bar with the diameter of 25mm and the length of 30 cm.
The bottom bearing plate 31 and the top bearing plate 32 are both made of 50cm × 50cm steel plates, and the thickness is 1 cm.
Claims (5)
1. A combined type hoop support structure is characterized in that a built-in ring plate (1) is arranged on the inner side of a pier stud reinforcement cage (2), and the built-in ring plate (1) is welded with longitudinal reinforcements (4) of the reinforcement cage; a pressure diffusion plate (5) and a transverse placing body (6) are arranged on the outer side of the built-in annular plate (1); a reinforcing connecting rib (7) is arranged between the pressure diffusion plate (5) and the built-in annular plate (1), and a first prestressed rib through hole (8) is arranged in the pier stud (3); a first prestressed lacing wire (9) is arranged in the transverse laying body (6); two semicircular fastening hoop plates (10) are arranged on the upper surface of the transverse shelving body (6) and the outer side of the pier stud (3), a stud connecting body (11) and a connecting lug plate (13) are respectively arranged at two ends of each fastening hoop plate (10), and a fastening bolt through hole (14) is arranged on each connecting lug plate (13); two ends of the connected fastening hoop plate (10) are respectively connected through a connecting stud (33) and a fastening bolt (12); a platform supporting body (16) is arranged on the outer side of the fastening hoop plate (10), a second prestressed lacing wire (28) and a third prestressed lacing wire (29) are respectively fastened, and then the transverse bearing plate (15) is arranged on the upper surface of the platform supporting body (16); an elevation adjusting device (17) is arranged on the transverse bearing plate (15); a main cross beam (20), a Bailey beam (21) and a distribution beam (22) are sequentially arranged on the transverse bearing plate (15), and a beam template (23) is arranged on the distribution beam (22).
2. The composite hoop bracket structure of claim 1, wherein: the built-in annular plate (1) is annular, the outer diameter of the built-in annular plate is the same as the inner diameter of the pier stud reinforcement cage (2), and the inner side of the built-in annular plate (1) is provided with an in-ring connecting rib (24) which is welded with the pier stud reinforcement cage (2).
3. The composite hoop bracket structure of claim 1, wherein: the stud connecting bodies (11) are formed by rolling steel plates, are welded with the fastening hoop plate (10), and are uniformly distributed at intervals along the height direction of the fastening hoop plate (10); the cross section of the bolt connecting body (11) is rectangular, and a bolt through hole (25) is formed in the centroid of the bolt connecting body (11).
4. The composite hoop bracket structure of claim 1, wherein: the platform support body consists of a first connecting body (26), a second connecting body (27), a second prestressed lacing wire (28) and a third prestressed lacing wire (29), and a reinforcing angle rib (30) is arranged between the first connecting body (26) and the second connecting body (27); the second prestressed lacing wire (28) and the third prestressed lacing wire (29) are respectively arranged between the first connecting bodies (26) and between the second connecting bodies (27).
5. The composite hoop bracket structure of claim 1, wherein: the elevation adjusting device (17) consists of a bottom bearing plate (31), a variable displacement adjusting body (18), a fixed displacement adjusting body (19) and a top bearing plate (32); the elevation adjusting device (17) is provided with 2-4 variable displacement adjusting bodies (18) in the cross section direction of the cast-in-place box girder, and each variable displacement adjusting body (18) adopts an independent pressure control mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821283809.XU CN211645995U (en) | 2018-08-09 | 2018-08-09 | Composite hoop support structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821283809.XU CN211645995U (en) | 2018-08-09 | 2018-08-09 | Composite hoop support structure |
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| CN211645995U true CN211645995U (en) | 2020-10-09 |
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| CN201821283809.XU Active CN211645995U (en) | 2018-08-09 | 2018-08-09 | Composite hoop support structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508172A (en) * | 2022-02-15 | 2022-05-17 | 江苏华江建设集团有限公司 | Prefabricated assembled column-beam joint core area and construction method thereof |
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2018
- 2018-08-09 CN CN201821283809.XU patent/CN211645995U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508172A (en) * | 2022-02-15 | 2022-05-17 | 江苏华江建设集团有限公司 | Prefabricated assembled column-beam joint core area and construction method thereof |
| CN114508172B (en) * | 2022-02-15 | 2024-04-26 | 江苏华江建设集团有限公司 | Prefabricated assembled column beam node core area and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220524 Address after: 615000 No. 1, floor 9, block a, Kanghong international, beibifu Road, Xichang City, Liangshan Yi Autonomous Prefecture, Sichuan Province Patentee after: SICHUAN ROAD & BRIDGE SHENGTONG BUILDING ENGINEERING Co.,Ltd. Address before: 310015 room 1901, unit 3, 3 Wanda Commercial Center, Gongshu District, Hangzhou, Zhejiang. Patentee before: HANGZHOU JIANGRUN TECHNOLOGY Ltd. |
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| TR01 | Transfer of patent right |