CN113193519B - Inner support type bridge frame for bridge, box girder and tunnel construction - Google Patents
Inner support type bridge frame for bridge, box girder and tunnel construction Download PDFInfo
- Publication number
- CN113193519B CN113193519B CN202110468953.0A CN202110468953A CN113193519B CN 113193519 B CN113193519 B CN 113193519B CN 202110468953 A CN202110468953 A CN 202110468953A CN 113193519 B CN113193519 B CN 113193519B
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- bridge
- box
- movable support
- clamping piece
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0437—Channels
- H02G3/045—Channels provided with perforations or slots permitting introduction or exit of wires
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/30—Installations of cables or lines on walls, floors or ceilings
Abstract
The invention discloses an inner support type bridge frame for bridge, box girder and tunnel construction, which comprises a bridge frame groove box, a bridge cover plate is arranged at the opening at the lower end of the bridge groove box and is fixedly connected with the opening at the lower end of the bridge groove box through a detachable fastener, two fixing brackets are arranged in the inner cavity of the bridge frame groove box, the upper surfaces of the fixing brackets are attached to the top surface of the inner cavity of the bridge frame groove box and fixed through expansion bolts and nuts, a plurality of through holes are arranged on the side surface of the fixed bracket, a movable bracket is also arranged in the bridge trough box, a positioning hole is arranged on each of the two side surfaces of the movable bracket, the positioning hole is aligned with a through hole on the side surface of the fixed support corresponding to the positioning hole, the positioning hole is fixedly connected with the aligned through hole through a positioning bolt, and a plurality of cable fixing points are arranged on the bottom surface of the movable support. The invention has the advantages of good stability and low construction cost.
Description
Technical Field
The invention relates to the technical field of bridge and tunnel construction, in particular to an inner support type bridge frame for bridge, box girder and tunnel construction.
Background
In the construction process of bridges, box girders and tunnels, cables for power supply and optical fibers for signal transmission often need to be laid, the cables and the optical fibers are generally laid in bridges installed below bridge bodies, box girders and tunnels, the existing bridges use cross arms to bear bridge trough boxes, the cross arms are fixed on the surfaces of buildings through hanging rods and nuts, the cables and the optical fibers are routed through the trough boxes, the upper ends of the trough boxes are provided with openings, bridge cover plates are installed at the openings, the bridge cover plates are directly buckled on the bridge trough boxes and are fixedly connected with the bridge trough boxes through friction, as shown in fig. 3, the number 16 in fig. 3 is a hanging rod, and the number 17 is a cross arm.
However, the bridge structure has the following problems in the practical use:
firstly, the space requirement of the suspender and the cable laying reduces the net height of the bridge, so that the bridge is easy to scratch and damage;
secondly, the hoisting structure combining the hanger rods and the cross arms also weakens the overall stability of the bridge frame, and the bridge frame is easy to damage and deform by wind;
therefore, those skilled in the art need a bridge structure that can reduce the frequency of damaging the bridge, enhance the stability of the bridge structure, reduce the consumption of steel, accelerate the construction progress, and save the cost.
Disclosure of Invention
The invention aims to solve the problems and designs an inner support type bridge frame for bridge, box girder and tunnel construction.
The technical scheme of the invention is that the inner support type bridge frame for bridge, box girder and tunnel construction comprises a bridge frame groove box, wherein the bridge frame groove box is a long-strip box body with the longitudinal section in an n shape, a bridge frame cover plate is arranged at the opening at the lower end of the bridge frame groove box, the bridge frame cover plate is buckled on the opening at the lower end of the bridge frame groove box,
the bridge cover plate is fixedly connected with an opening at the lower end of the bridge groove box through a detachable clamping piece, the detachable clamping piece is an L-shaped plate, a bend is arranged at the upper end of the detachable clamping piece, a connecting bolt is installed at the lower end of the detachable clamping piece, the upper end of the detachable clamping piece is inserted into the bridge groove box through an opening on the side surface of the bridge groove box, the bend at one end of the detachable clamping piece hooks the inner wall of the bridge groove box, a connecting bolt at the other end of the detachable clamping piece penetrates through the bottom surface of the bridge cover plate and extends into the bridge groove box, and the connecting bolt is fixedly connected with the bottom surface of the bridge cover plate in a threaded connection mode;
the inner cavity of the bridge frame groove box is internally provided with two fixing supports 7, the fixing supports are of inverted L-shaped sheet structures, the upper surfaces of the fixing supports are attached to the top surface of the inner cavity of the bridge frame groove box and fixed through expansion bolts and nuts, sizing blocks are arranged between the nuts and the lower surfaces of the fixing supports, the side surfaces of the fixing supports are provided with a plurality of through holes, and the through holes are arranged on the side surfaces of the fixing supports from top to bottom;
still be equipped with movable support in the bridge cell box, movable support is the U-shaped frame, all be equipped with a locating hole on two side surfaces of movable support, locating hole on two side surfaces of movable support is located same horizontal straight line, and the lower extreme of two fixed bolsters all stretches into between two side surfaces of movable support downwards, and two side surfaces of movable support laminate with the side surface of two fixed bolsters respectively, locating hole on the movable support side surface corresponds rather than the fixed bolster side surface of laminating, and the locating hole aligns rather than a perforation on the fixed bolster side surface that corresponds, the locating hole passes through positioning bolt fixed connection with the perforation of aligning, be equipped with a plurality of cable fixed points on the bottom surface of movable support.
The plurality of through holes are positioned on the same vertical straight line, and the position of the movable support is adjusted by fixedly connecting the positioning holes at the two ends of the movable support with the through holes at different heights.
The two fixing supports are respectively positioned on two sides of the top surface of the inner cavity of the bridge frame groove box, and the two fixing supports are symmetrical about the central line of the top surface of the inner cavity of the bridge frame groove box.
The bridge cover plate is a long strip-shaped plate with a concave-shaped longitudinal section.
The bending part is of an L-shaped sheet structure, one end of the bending part is fixedly connected with the upper end of the detachable clamping piece, and the included angle between one end of the bending part and one end of the detachable clamping piece is ninety degrees.
The other end of the bend is parallel to the upper end of the detachable clamping piece, and the other end of the bend points to a bridge cover plate at an opening at the lower end of the bridge groove box.
The bridge groove box and the bridge cover plate form a long-strip box body with a rectangular longitudinal section.
The aperture of the positioning hole is matched with that of the through hole, and the difference between the aperture of the positioning hole and the aperture of the through hole is not more than two millimeters.
The through holes on the side surfaces of the two fixed brackets are in one-to-one correspondence, and the corresponding through holes are ensured to be positioned on the same horizontal straight line.
Advantageous effects
The internal support type bridge frame for bridge, box girder and tunnel construction manufactured by the technical scheme of the invention has the following advantages:
1. the technical scheme of the application avoids the structural design that a hanger rod is matched with a cross arm fixing groove box in the traditional bridge, and the structural combination of an expansion bolt, the bridge groove box, a bridge cover plate and a detachable plate is utilized to effectively reduce the length of a bridge hanger, reduce the space requirement of the hanger, increase the strength of the hanger and ensure the stability of the bridge;
2. the technical scheme of this application optimizes crane span structure mounting means and cable laying mode through adjustable inner support structure, reduces crane span structure cable laying's space demand, promotes the clean height under the crane span structure, increase crane span structure body stability.
Drawings
FIG. 1 is a schematic structural diagram of an internal support bridge for bridge, box girder and tunnel construction according to the present invention;
FIG. 2 is a schematic structural view of the internal support type bridge frame for bridge, box girder and tunnel construction of the present invention;
FIG. 3 is a schematic view of a conventional bridge according to the present invention;
in the figure, 1, a bridge groove box; 2. a bridge cover plate; 3. the clamping piece can be disassembled; 4. bending; 5. a connecting bolt; 6. an opening; 7. fixing a bracket; 8. an expansion bolt; 9. a nut; 10. sizing block; 11. perforating; 12. a movable support; 13. positioning holes; 14. positioning the bolt; 15. a cable fixing point; 16. a boom; 17. and (4) a cross arm.
Detailed Description
The invention is described in detail below with reference to the drawings, as shown in FIGS. 1-3;
the bridge cover plate is fixedly connected with an opening at the lower end of a bridge groove box through a detachable clamping piece 3, the detachable clamping piece is a plate in an L shape, a bend 4 is arranged at the upper end of the detachable clamping piece, a connecting bolt 5 is installed at the lower end of the detachable clamping piece, the upper end of the detachable clamping piece is inserted into the bridge groove box through an opening 6 in the side surface of the bridge groove box, the bend at one end of the detachable clamping piece hooks the inner wall of the bridge groove box, the connecting bolt at the other end of the detachable clamping piece penetrates through the bottom surface of the bridge cover plate and extends into the bridge groove box, and the connecting bolt is fixedly connected with the bottom surface of the bridge cover plate in a threaded connection mode;
the novel bridge groove box is characterized in that two fixing supports 7 are arranged in an inner cavity of the bridge groove box, the fixing supports are of inverted L-shaped sheet structures, the upper surfaces of the fixing supports are attached to the top surface of the inner cavity of the bridge groove box and fixed through expansion bolts 8 and nuts 9, sizing blocks 10 are arranged between the nuts and the lower surfaces of the fixing supports, a plurality of through holes 11 are formed in the side surfaces of the fixing supports, and the through holes are arranged on the side surfaces of the fixing supports from top to bottom;
the utility model provides a create some and still lie in, still be equipped with movable support 12 in the crane span structure groove box, movable support is the U-shaped frame, all be equipped with a locating hole 13 on two side surfaces of movable support, the locating hole on two side surfaces of movable support is located same horizontal straight line, and the lower extreme of two fixed bolsters all stretches into between two side surfaces of movable support downwards, and two side surfaces of movable support laminate with the side surface of two fixed bolsters respectively, the locating hole on the movable support side surface corresponds rather than the fixed bolster side surface of laminating, and the locating hole aligns rather than a perforation on the fixed bolster side surface that corresponds, the locating hole passes through positioning bolt 14 fixed connection with the perforation of aligning, be equipped with a plurality of cable fixation point 15 on the bottom surface of movable support.
The movable support is characterized in that the plurality of through holes are positioned on the same vertical straight line, and the position of the movable support is adjusted in a mode that the positioning holes at two ends of the movable support are fixedly connected with the through holes at different heights; the two fixing supports are respectively positioned on two sides of the top surface of the inner cavity of the bridge frame groove box and are symmetrical about the central line of the top surface of the inner cavity of the bridge frame groove box; the bridge cover plate is a long strip-shaped plate with a concave-shaped longitudinal section; the bend is of an L-shaped sheet structure, one end of the bend is fixedly connected with the upper end of the detachable clamping piece, and the included angle between one end of the bend and one end of the detachable clamping piece is ninety degrees; the other end of the bend is parallel to the upper end of the detachable clamping piece, and the other end of the bend points to a bridge cover plate at an opening at the lower end of the bridge groove box; the bridge groove box and the bridge cover plate form a long-strip box body with a rectangular longitudinal section; the aperture of the positioning hole is matched with that of the through hole, and the difference between the aperture of the positioning hole and the aperture of the through hole is not more than two millimeters; the through holes on the side surfaces of the two fixed brackets are in one-to-one correspondence, and the corresponding through holes are ensured to be positioned on the same horizontal straight line.
In the implementation process of the technical scheme, the bridge groove box is fixedly installed on the surface of a building to be built through the expansion bolts, the height of the movable support is adjusted through the positioning holes and the through-hole fixed connection with different heights, and meanwhile, the bridge cover plate is fixedly installed on the bridge groove box through the detachable clamping pieces, so that the technical problem that the bridge cover plate is separated from the bridge groove box can be effectively solved. The technical scheme of this application solves the technical problem that the crane span structure groove box warp and lay wire through set up adjustable inner support structure in the crane span structure groove box, further guaranteed the crane span structure construction quality demand of bridge, case roof beam and tunnel.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.
Claims (9)
1. An inner support type bridge frame for bridge, box girder and tunnel construction comprises a bridge frame groove box (1), the bridge frame groove box is a long-strip box body with the longitudinal section in an n shape, a bridge frame cover plate (2) is arranged at the opening at the lower end of the bridge frame groove box, the bridge frame cover plate is buckled on the opening at the lower end of the bridge frame groove box, the inner support type bridge frame is characterized in that,
the bridge cover plate is fixedly connected with an opening at the lower end of the bridge trough box through a detachable clamping piece (3), the detachable clamping piece is an L-shaped plate, a bend (4) is arranged at the upper end of the detachable clamping piece, a connecting bolt (5) is installed at the lower end of the detachable clamping piece, the upper end of the detachable clamping piece is inserted into the bridge trough box through an opening (6) in the side surface of the bridge trough box, the bend at the upper end of the detachable clamping piece hooks the inner wall of the bridge trough box, the connecting bolt at the lower end of the detachable clamping piece penetrates through the bottom surface of the bridge cover plate and extends into the bridge trough box, and the connecting bolt is fixedly connected with the bottom surface of the bridge cover plate in a threaded connection mode;
the inner cavity of the bridge frame groove box is internally provided with two fixing supports (7), the fixing supports are of inverted L-shaped sheet structures, the upper surfaces of the fixing supports are attached to the top surface of the inner cavity of the bridge frame groove box and fixed through expansion bolts (8) and nuts (9), sizing blocks (10) are arranged between the nuts and the lower surfaces of the fixing supports, the side surfaces of the fixing supports are provided with a plurality of through holes (11), and the through holes are arranged on the side surfaces of the fixing supports from top to bottom;
still be equipped with movable support (12) in the bridge cell box, movable support is the U-shaped frame, all be equipped with a locating hole (13) on two side surfaces of movable support, locating hole on two side surfaces of movable support is located same horizontal straight line, and the lower extreme of two fixed bolsters all stretches into down between two side surfaces of movable support, and two side surfaces of movable support laminate with the side surface of two fixed bolsters respectively, locating hole on the movable support side surface corresponds rather than the fixed bolster side surface of laminating, and the locating hole aligns rather than a perforation on the fixed bolster side surface that corresponds, locating hole and the perforation of aligning pass through positioning bolt (14) fixed connection, be equipped with a plurality of cable fixed points (15) on the bottom surface of movable support.
2. The internal support bridge frame for bridge, box girder and tunnel construction as claimed in claim 1, wherein the plurality of through holes are located on the same vertical line, and the position of the movable support is adjusted by fixedly connecting the positioning holes at two ends of the movable support with the through holes at different heights.
3. The internal support frame for use in bridge, box girder or tunnel construction as claimed in claim 1, wherein two fixing brackets are respectively provided on both sides of the top surface of the inner cavity of the bridge box, and the two fixing brackets are symmetrical with respect to a center line of the top surface of the inner cavity of the bridge box.
4. The internal scaffolding bridge for use in bridge, box girder or tunnel construction as claimed in claim 1, wherein the bridge deck is an elongate plate member having a substantially rectangular cross-section.
5. The internal support bridge frame for bridge, box girder and tunnel construction according to claim 1, wherein the bend is an L-shaped sheet structure, one end of the bend is fixedly connected with the upper end of the detachable clamping piece, and the included angle between the one end of the bend and the one end of the detachable clamping piece is ninety degrees.
6. The internal support bridge frame for use in bridge, box girder and tunnel construction as claimed in claim 5, wherein the other end of the bend is parallel to the upper end of the detachable clip, and the other end of the bend is directed to the bridge cover plate at the opening at the lower end of the bridge box.
7. The internal bolster bridge of claim 1, wherein the bridge cells and the bridge deck comprise elongated boxes having rectangular longitudinal sections.
8. The internal scaffolding bridge deck for use in bridge, box girder or tunnel construction as claimed in claim 1, wherein the pilot holes have a diameter matching the diameter of the through holes and ensuring that the difference between the diameter of the pilot holes and the diameter of the through holes is no more than two mm.
9. The internal scaffolding bridge as claimed in claim 1, wherein the perforations in the side surfaces of the two brackets are in one-to-one correspondence and ensure that the corresponding perforations are in the same horizontal line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110468953.0A CN113193519B (en) | 2021-04-28 | 2021-04-28 | Inner support type bridge frame for bridge, box girder and tunnel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110468953.0A CN113193519B (en) | 2021-04-28 | 2021-04-28 | Inner support type bridge frame for bridge, box girder and tunnel construction |
Publications (2)
| Publication Number | Publication Date |
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| CN113193519A CN113193519A (en) | 2021-07-30 |
| CN113193519B true CN113193519B (en) | 2022-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110468953.0A Active CN113193519B (en) | 2021-04-28 | 2021-04-28 | Inner support type bridge frame for bridge, box girder and tunnel construction |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113852024A (en) * | 2021-10-29 | 2021-12-28 | 中船黄埔文冲船舶有限公司 | Adjustable cable support |
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| NL1027008C2 (en) * | 2004-09-09 | 2006-03-13 | Getronics Nederland B V | Cable channel construction e.g. for conducting digital network wiring, comprises segment, suspension module with plate fixed to ceiling surface by adhesive connection |
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| CN113193519A (en) | 2021-07-30 |
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