LU503990B1 - Single-stud Cantilever Bent Cap Attached Support Frame System - Google Patents
Single-stud Cantilever Bent Cap Attached Support Frame System Download PDFInfo
- Publication number
- LU503990B1 LU503990B1 LU503990A LU503990A LU503990B1 LU 503990 B1 LU503990 B1 LU 503990B1 LU 503990 A LU503990 A LU 503990A LU 503990 A LU503990 A LU 503990A LU 503990 B1 LU503990 B1 LU 503990B1
- Authority
- LU
- Luxembourg
- Prior art keywords
- girder
- steel
- stud
- bent cap
- support frame
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 132
- 239000010959 steel Substances 0.000 claims abstract description 132
- 238000003825 pressing Methods 0.000 claims abstract description 22
- 239000000837 restrainer Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 14
- 230000009916 joint effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present Utility model belongs to the technical field of pier studs, and in particular relates to a single-stud cantilever bent cap attached support frame system. The technical solution is: a single-stud cantilever bent cap attached support frame system, comprising steel box girders provided on both sides of a pier stud, wherein several reserved holes are provided on the pier stud, and perforated steel bars are inserted into the reserved holes; both ends of the perforated steel bar are threaded to two steel box girders, and tensioning steel bars are also threaded between the two steel box girders; both sides of the pier stud are provided with tensioning steel bars; the steel box girder is provided with a girder falling restrainer, on which two longitudinal main steel girders are installed on both sides of the pier stud, and the longitudinal main steel girder is vertical to the steel box girder; several distribution girders are installed between two longitudinal main steel girders, and a safety Operation platform and a bent cap model are installed on the several distribution girders; the distribution girder is provided with a girder pressing device, and a girder pressing bar is threaded between the girder pressing device and the steel box girder. The present utility model provides a single-stud cantilever bent cap attached support frame system with improved stability.
Description
Description LU503990
Single-stud Cantilever Bent Cap Attached Support Frame
System
The present utility model belongs to the technical field of pier studs, and in particular relates to a single-stud cantilever bent cap attached support frame system.
The floor stands, aerial supports in the pierced rod process and welding supports attached to walls are mostly used in construction of the existing single-stud cantilever bent cap, and the main layout form is that the main body of the support is a triangular truss with cantilevers, while two trusses are parallel in front and back, and attached to the top of the bridge pier stud at equal height in the transverse direction. Each truss has upper and lower support points, and the circular steel bar is inserted into the pier stud as the support point. The steel hoop is used as the support of the lower support point, and the two support points bear force together. However, in the above connection methods, the stability of the main steel girder against overturning is insufficient, which may cause the steel beam to topple.
In order to solve the above problem in the prior art, the purpose of the present utility model is to provide a single-stud cantilever bent cap attached support frame system with improved stability.
The technical solution adopted by the present utility model is:
A single-stud cantilever bent cap attached support frame system, comprising steel box girders provided on both sides of a pier stud, wherein several reserved holes 2010.2 1 are provided on the pier stud, and perforated steel bars are inserted into the reserved holes; both ends of the perforated steel bar are threaded to two steel box girders, and tensioning steel bars are also threaded between the two steel box girders; both sides of the pier stud are provided with tensioning steel bars; the steel box girder is provided with a girder falling restrainer, on which two longitudinal main steel girders are installed on both sides of the pier stud, and the longitudinal main steel girder is vertical to the steel box girder; several distribution girders are installed between two longitudinal main steel girders, and a safety operation platform and a bent cap model are installed on the several distribution girders; the distribution girder is provided with a girder pressing device, and a girder pressing bar is threaded between the girder pressing device and the steel box girder.
The two steel box girders are located relative to the pier stud by using the perforated steel bar of the present utility model, and the steel girders are tightened as the support corbels on the pier stud under the joint action of the tensioning steel bar and the perforated steel bar. A girder pressing bar is connected between the girder pressing device and the steel box girder, so that the longitudinal main steel girder is reliably pressed, ensuring the anti-overturning stability of the longitudinal main steel girder. After both the steel box girder and the longitudinal main steel girder are stabilized, the stability of the safety operation platform and the bent cap model on the distribution girder is ensured.
As a preferred solution of the present utility model, the material of the girder pressing bar is screw-thread steel bar for the prestressing of concrete.
As a preferred solution of the present utility model, a tension rod is threaded 2 between two longitudinal main steel girders (4), and both sides of the pier stud are provided with tension rods. The tension rod horizontally passes through the web of the longitudinal main steel girder at a position close to the pier stud, and the longitudinal main steel girder is tightly held against the pier stud, further improving the lateral stability of the longitudinal main steel girder.
As a preferred solution of the present utility model, the material of the tension rod is screw-thread steel bar for the prestressing of concrete.
As a preferred solution of the present utility model, the size of the perforated steel bar (21) is D60mm, and the material of the perforated steel bar (21) is 20CrMnTi.
As a preferred solution of the present utility model, the size of the tensioning steel bar is @60mm, and the material of the tensioning steel bar is 20CrMnTi.
As a preferred solution of the present utility model, the steel box girder has a material of Q235, a cross-sectional dimension of 400*250mm, a wall thickness of 20mm, and a web orifice material of 20mm thick annular steel plate.
As a preferred solution of the present utility model, the spacing between the distribution girders is 60cm.
As a preferred solution of the present utility model, the quantity of the bent cap models is two, and the two bent cap models are respectively provided on both sides of the pier stud.
As a preferred solution of the present utility model, the bent cap model comprises a model main steel girder connected to the distribution girder; a triangular support frame is connected to the model main steel girder, and a model body is 3 connected to the triangular support frame.
The beneficial effects of the present utility model are as follows:
The two steel box girders are located relative to the pier stud by using the perforated steel bar of the present utility model, and the steel girders are tightened as the support corbels on the pier stud under the joint action of the tensioning steel bar and the perforated steel bar. A girder pressing bar is connected between the girder pressing device and the steel box girder, so that the longitudinal main steel girder is reliably pressed, ensuring the anti-overturning stability of the longitudinal main steel girder. After both the steel box girder and the longitudinal main steel girder are stabilized, the stability of the safety operation platform and the bent cap model on the distribution girder is ensured.
Fig. 1 is a front view of the present utility model;
Fig. 2 is a top view of the present utility model; and
Fig. 3 is a left view of the present utility model.
In the figures: 1 - pier stud; 2 - steel box girder; 3 - girder falling restrainer; 4- longitudinal main steel girder; 5 - distribution girder; 6 - safety operation platform; 7 - bent cap model; 8 - girder pressing device; 21 - perforated steel bar; 22 - tensioning steel bar; 41 - tension rod; 71 - model main steel girder; 72 - triangular support frame; 73 - model body; 81 - girder pressing bar.
The technical solutions of the embodiments of the present utility model will be described clearly and completely as follows in conjunction with the drawings of these 4 embodiments for a clear understanding of the purposes, technical solutions and advantages of the present utility model. Apparently, the embodiments described are only some, not all of the embodiments of the present utility model. Generally, the components in the embodiments of the present utility model described and shown in the drawings can be arranged and designed in various configurations.
Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of protection of the present utility model, but only represents selected embodiments of the present utility model. Based on the embodiments of the present utility model, other embodiments obtained by those of ordinary skill in the art without creative work also belong to the protection scope of the present utility model. It should be noted that embodiments of the present utility model and characteristics of such embodiments can be combined with each other in case of no conflict.
As shown in Figs 1-3, the single-stud cantilever bent cap attached support frame system of the present utility model comprising steel box girders 2 provided on both sides of a pier stud 1, wherein two ®70mm reserved holes are reserved on the pier stud 1 in the transverse direction (along the length direction of the bent cap), and two ®60mm (20CrMnTi) steel bars with threads on both ends pass through the upper hole of the steel girder 2 and the reserved hole of the pier stud 1; both ends of the perforated steel bar 21 are threaded to two steel box girders 2. At the same time, two more ®60mm (20CrMnT1) steel bars are provided on the both outer sides of the pier stud 1 to pass through the lower hole of the steel box girder 2, and the steel box girders 2 are tightened onto the pier stud 1 as support corbels. The steel box girder 2 5 has a material of Q235, cross-sectional dimension of 400*250mm, a wall thickness of 20mm, and a web orifice material of 20mm thick annular steel plate.
The steel box girder 2 is provided with a girder falling restrainer 3, on which two longitudinal main steel girders 4 are installed on both sides of the pier stud 1, and the longitudinal main steel girder 4 is vertical to the steel box girder 2; several distribution girders 5 are installed between two longitudinal main steel girders 4 (I16
I-steel, with the spacing of 60cm), and a safety operation platform 6 and a bent cap model 7 are installed on the several distribution girders 5.
The distribution girder 5 is provided with a girder pressing device 8, and both sides of the pier stud 1 are provided with two girder pressing devices 8. The girder pressing device 8 is vertically connected and tightened with the steel box girder 2 by ®32mm screw-thread steel bar for the prestressing of concrete on both sides of the pier stud 1 (in the transverse direction), in order to further increase the anti- overturning stability of the longitudinal main steel girder 4.
The two steel box girders 2 are located relative to the pier stud 1 by using the perforated steel bar 21 of the present utility model, and the steel girders 2 are tightened as the support corbels on the pier stud 1 under the joint action of the tensioning steel bar 22 and the perforated steel bar 21. A girder pressing bar 81 is connected between the girder pressing device 8 and the steel box girder 2, so that the longitudinal main steel girder 4 is reliably pressed, ensuring the anti-overturning stability of the longitudinal main steel girder 4. After both the steel box girder 2 and the longitudinal main steel girder 4 are stabilized, the stability of the safety operation platform 6 and the bent cap model on the distribution girder 5 is ensured. 6
Further, four D32mm screw-thread steel bars for the prestressing of concrete horizontally pass through the web of the longitudinal main steel girder 4 at a position close to the pier stud 1, and the longitudinal main steel girder 4 is tightly held against the pier stud 1, ensuring the lateral stability of the longitudinal main steel girder 4.
The quantity of the bent cap models 7 is two, and the two bent cap models 7 are respectively provided on both sides of the pier stud 1. The bent cap model 7 comprises a model main steel girder 71 connected to the distribution girder 5; a triangular support frame 72 is connected to the model main steel girder 71, and a model body 73 is connected to the triangular support frame 72.
The size of one bent cap is greater than 7.1*1.8*1.5m but less than 10.9*2,5*1.7m. The model main steel girders 71 are two HN700*300 hot-rolled H- shaped steel, and one for either side of the pier stud 1. The size of the other bent cap is less than or equal to 7.1*1.8*1.5m. The model main steel girders 71 are two 145a hot-rolled I-steel, and one for either side of the pier stud 1.
The present utility model is not limited to the above alternative implementation.
Anyone can derive various other forms of products under the enlightenment of the present utility model. However, regardless of any changes in its shape or structure, any technical solution falling within the scope of the claims of the present utility model falls within the scope of protection of the present utility model. 7
Claims (10)
- Claims LU503990 A single-stud cantilever bent cap attached support frame system, comprising steel box girders (2) provided on both sides of a pier stud (1), wherein several reserved holes are provided on the pier stud (1), and perforated steel bars (21) are inserted into the reserved holes; both ends of the perforated steel bar (21) are threaded to two steel box girders (2), and tensioning steel bars (22) are also threaded between the two steel box girders (2); both sides of the pier stud (1) are provided with tensioning steel bars (22); the steel box girder (2) is provided with a girder falling restrainer (3), on which two longitudinal main steel girders (4) are installed on both sides of the pier stud (1), and the longitudinal main steel girder (4) is vertical to the steel box girder (2); several distribution girders (5) are installed between two longitudinal main steel girders (4), and a safety operation platform (6) and a bent cap model (7) are installed on the several distribution girders (5); the distribution girder (5) is provided with a girder pressing device (8), and a girder pressing bar (81) is threaded between the girder pressing device (8) and the steel box girder (2).
- 2. The single-stud cantilever bent cap attached support frame system according to claim 1, wherein, the material of the girder pressing bar (81) is screw-thread steel bar for the prestressing of concrete.
- 3. The single-stud cantilever bent cap attached support frame system according to claim 1, wherein, a tension rod (41) is threaded between two longitudinal main steel girders (4), and tension rods (41) are provided on both sides of the pier stud (1).
- 4. The single-stud cantilever bent cap attached support frame system according to claim 3, wherein, the material of the tension rod (41) is screw-thread steel bar for the prestressing of concrete. 2010.2 8
- 5. The single-stud cantilever bent cap attached support frame system according to claim 1, wherein, the size of the perforated steel bar (21) is D®60mm, and the material of the perforated steel bar (21) is 20CrMnTi.
- 6. The single-stud cantilever bent cap attached support frame system according to claim 1, wherein the size of the tensioning steel bar (22) is D60mm, and the material of the tensioning steel bar (22) is 20CrMnTi.
- 7. The single-stud cantilever bent cap attached support frame system according to claim 1, wherein, the steel box girder (2) has a material of Q235, a cross-sectional dimension of 400*250mm, a wall thickness of 20mm, and a web orifice material of 20mm thick annular steel plate.
- 8. The single-stud cantilever bent cap attached support frame system according to claim 1, wherein, the spacing between the distribution girders (5) is 60cm.
- 9. The single-stud cantilever bent cap attached support frame system according to claim 1, wherein, the quantity of the bent cap models (7) is two, and the two bent cap models (7) are respectively provided on both sides of the pier stud (1).
- 10. The single-stud cantilever bent cap attached support frame system according to claim 9, wherein, the bent cap model (7) comprises a model main steel girder (71) connected to the distribution girder (5); a triangular support frame (72) is connected to the model main steel girder (71), and a model body (73) is connected to the triangular support frame (72). 9
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222265786.2U CN218027217U (en) | 2022-08-26 | 2022-08-26 | Attached support frame system of single-column cantilever bent cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU503990B1 true LU503990B1 (en) | 2023-10-19 |
Family
ID=84350463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU503990A LU503990B1 (en) | 2022-08-26 | 2023-04-19 | Single-stud Cantilever Bent Cap Attached Support Frame System |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN218027217U (en) |
| LU (1) | LU503990B1 (en) |
-
2022
- 2022-08-26 CN CN202222265786.2U patent/CN218027217U/en active Active
-
2023
- 2023-04-19 LU LU503990A patent/LU503990B1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| CN218027217U (en) | 2022-12-13 |
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| Date | Code | Title | Description |
|---|---|---|---|
| FG | Patent granted |
Effective date: 20231019 |