CN219410569U - Steel-concrete combined truss girder - Google Patents
Steel-concrete combined truss girder Download PDFInfo
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- CN219410569U CN219410569U CN202320601470.8U CN202320601470U CN219410569U CN 219410569 U CN219410569 U CN 219410569U CN 202320601470 U CN202320601470 U CN 202320601470U CN 219410569 U CN219410569 U CN 219410569U
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- steel
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- truss girder
- bailey beam
- elevation
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Abstract
The utility model discloses a steel-concrete combined truss girder, belonging to the technical field of bridge construction; it comprises the following steps: bailey beam; the track beam support is vertically laid on the bailey beam and is connected with the bailey beam through bolts; the two steel web members are symmetrically arranged and are respectively and vertically fixed at two end parts of the rail beam support, and the two steel web members are fixedly connected through a cross beam; and one end of the positioning member support is movably connected with the bailey beam through the elevation adjusting member, and the other end of the positioning member support is movably connected with the steel web member through the longitudinal and transverse adjusting member. According to the utility model, the suspended steel truss girder is supported by the adjustable component support, and the elevation and the axis of the girder are adjusted by the adjusting screw rod arranged on the support leg and the tray at the top of the support, so that the installation accuracy control of the steel truss girder is realized.
Description
Technical Field
The utility model relates to the technical field of bridge construction, in particular to a steel-concrete combined truss girder.
Background
With the development of materials and computing technology in recent years, a steel-concrete combined structure is more and more favored in related research and engineering application at home and abroad due to higher economic benefit, good mechanical property and attractive appearance, so that the steel-concrete combined structure becomes one of hot spots for structural research.
The comprehensive steel web member construction technology of the bridge becomes a construction matching technology which is vital to highway and railway construction in the future, and the bridge steel web member construction and installation mainly comprises the construction of the bailey beam and the buttresses and foundations thereof, the installation of gantry cranes or gantry cranes and auxiliary facilities thereof, the installation of steel member elevation and pre-camber adjustment measures, the assembly of steel members and the like, and the process has complex procedures and higher technical difficulty.
At present, a station below an automobile suspension bridge is generally adopted, and suspension can be realized when a road is arranged below the automobile suspension bridge, but suspension can not be realized when a canyon or a river is arranged below the automobile suspension bridge; the adjustable support is not arranged during the installation of the web member, the constructor has no operation space, the safety can not be ensured, and the steel web member is not adjusted after the installation.
Disclosure of Invention
In order to solve the problems, the utility model adopts the following technical scheme:
a steel-hybrid composite girder comprising:
bailey beam;
the track beam support is vertically laid on the bailey beam and is connected with the bailey beam through bolts;
the two steel web members are symmetrically arranged and are respectively and vertically fixed at two end parts of the rail beam support, and the two steel web members are fixedly connected through a cross beam;
and one end of the positioning member support is movably connected with the bailey beam through an elevation adjusting member, and the other end of the positioning member support is movably connected with the steel web member through a longitudinal and transverse adjusting member.
Further, the positioning member is supported in an inverted triangle structure.
Further, the elevation adjusting member is provided with a double-ended screw.
Further, the longitudinal and transverse adjusting member is provided with a chain block.
The utility model has the following beneficial effects:
1. the bridge deck gantry crane is used for erection, the upper materials and the assembly are carried out at the end parts, so that the road below is avoided, the road below is not influenced, and the smooth traffic is ensured;
2. the utility model uses the adjustable component bracket to support the suspended steel truss girder, and the elevation and the axis of the girder are adjusted by arranging the elevation adjusting component and the longitudinal and transverse adjusting component, so as to realize the precision control of the installation of the steel truss girder.
Drawings
FIG. 1 is a schematic structural view of a steel-concrete composite truss girder according to the present utility model;
FIG. 2 is an enlarged schematic view of an elevation adjustment member of a steel-concrete composite girder provided by the utility model;
fig. 3 is an enlarged schematic view of an aspect adjusting member of a steel-concrete composite girder according to the present utility model.
Wherein: 1. bailey beam; 2. a rain hole; 3. a positioning member support; 4. steel web members; 5. elevation adjusting means; 6. and a longitudinal and transverse adjusting component.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Example 1
Referring to fig. 1-3, a steel-hybrid composite girder comprising:
bailey beam 1;
the track beam support is vertically laid on the bailey beam 1 and is connected with the bailey beam 1 through bolts;
the two steel web members 4 are symmetrically arranged, the two steel web members 4 are respectively and vertically fixed at two end parts of the rail beam support, and the two steel web members 4 are fixedly connected through a cross beam;
and one end of the positioning member support 3 is movably connected with the bailey beam 1 through an elevation adjusting member 5, and the other end of the positioning member support 3 is movably connected with the steel web member 4 through a longitudinal and transverse adjusting member 6.
In the embodiment, the bridge deck gantry crane is utilized for erection, the upper materials and the assembly are carried out at the end parts, so that the road below is avoided, the road below is not influenced, and the smooth traffic is ensured;
in the embodiment, the suspended steel truss girder is supported by the adjustable component support, and the elevation and the axis of the girder are adjusted by arranging the elevation adjusting component 5 and the longitudinal and transverse adjusting component 6, so that the installation accuracy control of the steel truss girder is realized.
Example 2
This example is a detailed setting based on example 1.
Specifically, a bailey beam 1 is provided with a rainwater hole 2;
specifically, the positioning member support 3 has an inverted triangle structure;
specifically, the elevation adjustment member 5 is an adjustment member having a double-headed screw;
specifically, the longitudinal and lateral adjustment member 6 is an adjustment member having a chain block and an adjustment screw.
Example 3
The embodiment is a method for adjusting the steel-concrete composite truss provided in embodiment 1 or 2, and the specific adjustment method is as follows:
1. steel truss girder elevation adjustment
The lower chord node of the steel web member to be adjusted is supported by a jack, and then the elevation of the steel truss girder is adjusted by the double-headed screw of the elevation adjusting member 5. The method is used for repeatedly adjusting, and finally, the designed elevation requirement is met.
2. Transverse and longitudinal position adjustment of steel truss girder
1. And (3) adjusting the upper chord transverse position of the steel truss girder: since the steel web members are heavy and cannot be adjusted by a crow bar, the jack is required to be adjusted by a jack, the jack is supported to the position of the pallet on the longitudinal and transverse adjusting member 6, and then the adjustment is performed one by one, and then the adjustment is continued by the same method when the position is found to be not correct by measuring with a theodolite and a steel ruler. The adjustment is repeated in this way to meet the design requirement.
2. And (3) adjusting the transverse position of the lower chord of the steel truss girder: one end of the chain is fixed on a steel web member to be adjusted, the other end is fixed on an adjacent longitudinal and transverse adjusting member 6, then the position of each node is adjusted through the expansion and contraction of the chain, after the adjustment is finished once, the position is measured by using a theodolite and a steel ruler, and when the position is found to be not correct, the adjustment is continued. The adjustment is repeated in this way to meet the design requirement.
3. Steel truss girder lower chord transverse interval adjustment
The transverse distance of the member is adjusted by installing the temporary adjusting screw rod, the adjusting screw rod is connected with the web member through the anchor ear, and the steel truss girder is convenient to install and detach and is not damaged.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.
Claims (4)
1. A steel-hybrid composite girder, comprising:
bailey beam;
the track beam support is vertically laid on the bailey beam and is connected with the bailey beam through bolts;
the two steel web members are symmetrically arranged and are respectively and vertically fixed at two end parts of the rail beam support, and the two steel web members are fixedly connected through a cross beam;
and one end of the positioning member support is movably connected with the bailey beam through an elevation adjusting member, and the other end of the positioning member support is movably connected with the steel web member through a longitudinal and transverse adjusting member.
2. A steel-concrete composite girder according to claim 1, wherein said positioning members are supported in an inverted triangle structure.
3. The steel-concrete composite girder according to claim 1, wherein the elevation adjustment member is provided with a double-headed screw.
4. A steel-concrete composite girder according to claim 1, wherein said longitudinal and transverse adjusting members are provided with chain links.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320601470.8U CN219410569U (en) | 2023-03-23 | 2023-03-23 | Steel-concrete combined truss girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320601470.8U CN219410569U (en) | 2023-03-23 | 2023-03-23 | Steel-concrete combined truss girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219410569U true CN219410569U (en) | 2023-07-25 |
Family
ID=87209770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320601470.8U Active CN219410569U (en) | 2023-03-23 | 2023-03-23 | Steel-concrete combined truss girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219410569U (en) |
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2023
- 2023-03-23 CN CN202320601470.8U patent/CN219410569U/en active Active
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