CN216999333U - Temporary turnover hinged support convenient for folding and fixing steel truss girder - Google Patents
Temporary turnover hinged support convenient for folding and fixing steel truss girder Download PDFInfo
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- CN216999333U CN216999333U CN202220439094.2U CN202220439094U CN216999333U CN 216999333 U CN216999333 U CN 216999333U CN 202220439094 U CN202220439094 U CN 202220439094U CN 216999333 U CN216999333 U CN 216999333U
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Abstract
The utility model relates to a temporary turnover hinged support convenient for folding and fixing a steel truss girder, which comprises a first hinged support and a second hinged support; the first hinge base comprises a first anchor backing plate and two first hinged plates, two first pair of pulling plates are fixed between the first hinged plates, first pair of pulling holes penetrate through the first pair of pulling plates, the first hinged plates are provided with first hinged holes, and the first anchor backing plate is provided with a plurality of first anchor backing holes; the second hinge base comprises a second anchor backing plate and two second hinged plates, two second pairs of pull plates are fixed between the second hinged plates, second pairs of pull holes penetrate through the second pairs of pull plates, second hinged holes are formed in the second hinged plates, and a plurality of second anchor backing plate holes are formed in the second anchor backing plate; the two first hinged plates are connected between the two second hinged plates in a penetrating mode, the first hinged holes and the second hinged holes correspond to each other, hinged pin shafts are connected in the first hinged holes and the second hinged holes in a penetrating mode, the first pair of pull holes and the second pair of pull holes correspond in position, and opposite pull screws are connected in the first pair of pull holes and the second pair of pull holes in a penetrating mode. The utility model is more convenient for folding and fixing the steel trussed beams.
Description
Technical Field
The utility model relates to the technical field of steel truss girder erection construction, in particular to a temporary turnover hinged support convenient for folding and fixing a steel truss girder.
Background
The steel truss girder has been widely used in large-span suspension bridges (cable-stayed bridges) because of its good space mechanics characteristics. In the construction of the superstructure of a large-span steel truss girder suspension bridge, the shape of the erected steel truss girder is changed along with the erection process, for example, when the steel truss girder is erected from the middle to both ends of the span, the steel truss girder at the middle of the span is in a downwarping state at the initial stage of erection, the steel truss girder at the middle stage of erection is similar to the designed bridge shape, and the steel truss girder at the middle of the span at the later stage of erection is in an upwarping state. The steel truss girder erection is subjected to stage control by utilizing structural characteristics and change rules of the steel truss girder erection process, so that the forming quality of a steel truss girder suspension bridge is improved, the upper chord of the steel truss girder is extruded and the lower chord of the steel truss girder is stretched at the initial stage of girder erection, and the upper chord and the lower chord of the steel truss girder generate great stress if the girder section is forcibly welded, so that quality and safety accidents are caused, and therefore, the steel truss girder erection process is very necessary for the conversion of real-time temporary connection and solidification between the girder sections.
The method commonly adopted by the existing temporary hinging of the steel truss girder comprises the following steps: firstly, when the steel truss girder segment is designed and processed, the hinged lug plates are welded at the positions of the upper chord bridge deck plates; and secondly, the hinged lug plate is installed through a bolt in the construction stage. However, when the steel truss girder is hoisted and installed, two adjacent girder sections are difficult to coincide at the designed hinge point position, and mechanical and manual assistance is often needed for hinging. To this kind of condition, application number is 201920075226.6's utility model patent discloses a suspension bridge stiffening steel longeron hinge structure temporarily, at two stiffening girder segment sections upper chord member installation butt joints, through the butt joint articulated temporarily, more the current stiffening girder hinge mode temporarily, need not strengthen the design to the stiffening girder upper chord member, can not cause the harm yet to stiffening girder permanent structure, and articulated construction convenient and fast, can promote work efficiency. However, in the butt joint connection process of the butt joint, the device needs to perform relatively accurate alignment operation, and the steel truss beam folding and fixing process is not very convenient.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a temporary turnover hinged support convenient for folding and fixing a steel truss girder.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a temporary turnover hinged support convenient for folding and fixing a steel truss girder comprises a first hinged support and a second hinged support;
the first hinge base comprises a first anchor backing plate and two parallel first hinged plates vertically fixed on the upper surface of the first anchor backing plate, two parallel first pair of pulling plates are fixed between the first hinged plates, a first pair of pulling holes penetrate through the first pair of pulling plates, one end of the top of each first hinged plate extends out of the first anchor backing plate, a first hinge hole is formed in the extending part of each first hinged plate, and a plurality of first anchor backing plate holes are formed in the first anchor backing plate;
the second hinged support comprises a second anchor backing plate and two parallel second hinged plates vertically fixed on the upper surface of the second anchor backing plate, two parallel second pair of pulling plates are fixed between the second hinged plates, second pair of pulling holes penetrate through the second pair of pulling plates, one end of the top of each second hinged plate extends out of the second anchor backing plate, a second hinged hole is formed in the extending part of each second hinged plate, and a plurality of second anchor backing plate holes are formed in the second anchor backing plate;
the extension parts of the two first hinged plates are connected between the extension parts of the two second hinged plates in a penetrating mode, the first hinged holes and the second hinged holes correspond to each other, hinged pin shafts are connected in the first hinged holes and the second hinged holes in a penetrating mode, the first pair of pull holes and the second pair of pull holes correspond in position, and opposite pull screw rods are connected in the first pair of pull holes and the second pair of pull holes in a penetrating mode.
Two first stiffening rib plates which are parallel are fixed on the upper surface of the first anchor backing plate at the outer side of the first hinged plate.
And two parallel second stiffening rib plates are fixed on the upper surface of the second anchor backing plate on the outer side of the second hinged plate.
The first stiffening rib plate and the second stiffening rib plate are of right-angled trapezoid structures with narrow top and wide bottom.
The first pair of pulling plates and the second pair of pulling plates are in rectangular structures.
The first hinged plate is welded on the first anchor backing plate, and the second hinged plate is welded on the second anchor backing plate.
The end parts of the extending parts of the first hinge plate and the second hinge plate are in circular arc chamfer structures.
The utility model has the beneficial effects that: the temporary hinged support is arranged on the upper chord of the two sections of steel trusses, the longitudinal distance is finely adjusted through the opposite-pulling screw rods after the two sections of steel trusses are hoisted in place, the folding and fixing of the two sections of steel trusses are facilitated, the two sections of steel trusses are hinged through the hinge pin shaft, the hinged support is simple in structure, convenient to install and disassemble, good in using effect and free of damage to the permanent structure of the steel trusses.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
figure 2 is a front view of the first hinge mount;
FIG. 3 is a top view of the first hinge base;
FIG. 4 is a front view of the second hinge mount;
fig. 5 is a top view of the second hinge base;
fig. 6 is a left side view of the second hinge base;
in the figure: 1-a first hinge base; 2-a second free bearing; 3-hinging a pin shaft; 4-pulling the screw rod; 5-a first steel truss girder upper chord; 6-a second steel truss girder upper chord;
1.1-a first anchor backing plate; 1.2-a first hinge plate; 1.3-a first pair of pulling plates; 1.4-first counter-pull hole; 1.5-a first hinge hole; 1.6-a first anchor pad hole; 1.7-first stiffening rib;
2.1-a second anchor backing plate; 2.2-a second hinged plate; 2.3-a second pair of pulling plates; 2.4-second opposite pulling holes; 2.5-a second hinge hole; 2.6-second anchor pad hole; 2.7-second stiffening rib plate;
the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1 to 6, a temporary turnover hinge base for facilitating the folding and fixing of a steel truss girder comprises a first hinge base 1 and a second hinge base 2;
the first hinge base 1 comprises a first anchor backing plate 1.1 and two parallel first hinged plates 1.2 vertically fixed on the upper surface of the first anchor backing plate 1.1, two parallel first pair of pull plates 1.3 are fixed between the first hinged plates 1.2, a first pair of pull holes 1.4 penetrate through the first pair of pull plates 1.3, one end of the top of the first hinged plate 1.2 extends out of the first anchor backing plate 1.1, a first hinge hole 1.5 is formed in the extending part of the first hinge plate 1.1, and a plurality of first anchor backing holes 1.6 are formed in the first anchor backing plate 1.1;
the second hinge base 2 comprises a second anchor backing plate 2.1 and two parallel second hinged plates 2.2 vertically fixed on the upper surface of the second anchor backing plate 2.1, two parallel second counter-pull plates 2.3 are fixed between the second hinged plates 2.2, second counter-pull holes 2.4 penetrate through the second counter-pull plates 2.3, one end of the top of the second hinged plate 2.2 extends out of the second anchor backing plate 2.1, an extending part is provided with a second hinged hole 2.5, and the second anchor backing plate 2.1 is provided with a plurality of second anchor backing holes 2.6;
the extension parts of the two first hinged plates 1.2 are connected between the extension parts of the two second hinged plates 2.2 in a penetrating mode, the first hinged holes 1.5 and the second hinged holes 2.5 correspond to each other, a hinged pin shaft 3 penetrates into the first hinged holes and the second hinged holes, and the first counter-pulling holes 1.4 and the second counter-pulling holes 2.4 correspond to each other in position and a counter-pulling screw rod 4 penetrates into the first hinged holes and the second hinged holes.
Two parallel first stiffening rib plates 1.7 are fixed on the upper surface of the first anchor backing plate 1.1 at the outer side of the first hinge plate 1.2.
Two second stiffening rib plates 2.7 which are parallel are fixed on the upper surface of the second anchor backing plate 2.1 at the outer side of the second hinge plate 2.2.
The first stiffening rib plate 1.7 and the second stiffening rib plate 2.7 are in a right-angled trapezoid structure with a narrow upper part and a wide lower part.
The first stiffening rib plate 1.7 and the second stiffening rib plate 2.7 are used for enhancing the transverse stability of the first hinge plate 1.2 and the second hinge plate 2.2;
the first pair of pulling plates 1.3 and the second pair of pulling plates 2.3 are rectangular structures.
The first hinged plate 1.2 is welded on the first anchor backing plate 1.1, and the second hinged plate 2.2 is welded on the second anchor backing plate 2.1.
The end parts of the extending parts of the first hinge plate 1.2 and the second hinge plate 2.2 are in circular arc chamfer structures.
When the steel truss girder upper chord adjusting device is used, a first anchor backing plate 1.1 is connected with a first steel truss girder upper chord 5, a first anchor backing plate hole 1.6 corresponds to the size and the position of a hole in a top plate of the first steel truss girder upper chord 5 and is fixed through a bolt, a second anchor backing plate 2.1 is connected with a second steel truss girder upper chord 6, a second anchor backing plate hole 2.6 corresponds to the size and the position of a hole in a top plate of the second steel truss girder upper chord 6 and is fixed through a bolt, a split screw 4 penetrates into the first split hole 1.4 and the second split hole 2.4, the split screw 4 is finely adjusted for longitudinal distance after being hoisted in place, folding and fixing between the steel truss girders are facilitated, when the first split hole 1.5 is superposed with the second split hole 2.5, a hinge pin 3 is inserted to complete hinging, and when the first split hole 1.5 is superposed with the second split hole 2.5, the center line of the first steel truss girder upper chord 5 is superposed with the center line of the second steel truss girder upper chord 6.
The hinged support has the advantages of simple structure, convenient assembly and disassembly, good use effect and no damage to the permanent structure of the steel truss girder.
The utility model has been described in connection with the accompanying drawings, it is to be understood that the utility model is not limited to the specific embodiments disclosed, but is intended to cover various modifications, adaptations or uses of the utility model, and all such modifications and variations are within the scope of the utility model.
Claims (7)
1. A temporary turnover hinged support convenient for folding and fixing a steel truss girder is characterized by comprising a first hinged support (1) and a second hinged support (2);
the first hinge base (1) comprises a first anchor backing plate (1.1) and two parallel first hinged plates (1.2) vertically fixed on the upper surface of the first anchor backing plate (1.1), two parallel first pair of pulling plates (1.3) are fixed between the first hinged plates (1.2), a first pair of pulling holes (1.4) penetrate through the first pair of pulling plates (1.3), one end of the top of the first hinged plate (1.2) extends out of the first anchor backing plate (1.1), an extending part of the first hinged plate is provided with a first hinge hole (1.5), and the first anchor backing plate (1.1) is provided with a plurality of first anchor backing plate holes (1.6);
the second hinge base (2) comprises a second anchor backing plate (2.1) and two parallel second hinged plates (2.2) vertically fixed on the upper surface of the second anchor backing plate (2.1), two parallel second counter-pulling plates (2.3) are fixed between the second hinged plates (2.2), second counter-pulling holes (2.4) penetrate through the second counter-pulling plates (2.3), one end of the top of each second hinged plate (2.2) extends out of the second anchor backing plate (2.1), second hinge holes (2.5) are formed in the extending parts of the top of each second hinged plate, and a plurality of second anchor backing plate holes (2.6) are formed in the second anchor backing plate (2.1);
the extension portion of two first articulated slab (1.2) is worn to connect between the extension portion of two second articulated slab (2.2), and first hinge hole (1.5), second hinge hole (2.5) are corresponding and the inside has worn to connect and has been articulated round pin axle (3), and first counterpoint draw hole (1.4), second counterpoint draw hole (2.4) position correspond and inside has worn to connect and has been to drawing screw rod (4).
2. A temporary revolving hinge support for facilitating the folding and fixing of steel trussed beams according to claim 1, characterized in that two parallel first stiffening rib plates (1.7) are fixed on the upper surface of the first anchor backing plate (1.1) at the outer side of the first hinge plate (1.2).
3. A temporary revolving hinge support for facilitating the folding and fixing of steel trussed beams according to claim 2, characterized in that two parallel second stiffening rib plates (2.7) are fixed on the upper surface of the second anchor backing plate (2.1) at the outer side of the second hinge plate (2.2).
4. A temporary turnover hinge base convenient for steel trussed beam folding and fixing as claimed in claim 3, wherein the first stiffening rib plate (1.7) and the second stiffening rib plate (2.7) are of a right-angle trapezoidal structure with narrow top and wide bottom.
5. A temporary revolving hinge support for facilitating the folding and fixing of steel trusses according to claim 4, characterized in that the first pair of pulling plates (1.3) and the second pair of pulling plates (2.3) are rectangular structures.
6. A temporary revolving hinge support for facilitating the folding and fixing of steel trusses according to claim 5, characterized in that the first hinged plate (1.2) is welded on the first anchor backing plate (1.1) and the second hinged plate (2.2) is welded on the second anchor backing plate (2.1).
7. A temporary revolving hinge support for facilitating the folding and fixing of steel trussed beams according to claim 6, characterized in that the ends of the extending parts of the first hinge plate (1.2) and the second hinge plate (2.2) are in circular arc chamfer structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220439094.2U CN216999333U (en) | 2022-03-02 | 2022-03-02 | Temporary turnover hinged support convenient for folding and fixing steel truss girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220439094.2U CN216999333U (en) | 2022-03-02 | 2022-03-02 | Temporary turnover hinged support convenient for folding and fixing steel truss girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216999333U true CN216999333U (en) | 2022-07-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220439094.2U Active CN216999333U (en) | 2022-03-02 | 2022-03-02 | Temporary turnover hinged support convenient for folding and fixing steel truss girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216999333U (en) |
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2022
- 2022-03-02 CN CN202220439094.2U patent/CN216999333U/en active Active
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