CN215714662U - Temporary hinging structure for steel box girder of suspension bridge - Google Patents
Temporary hinging structure for steel box girder of suspension bridge Download PDFInfo
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- CN215714662U CN215714662U CN202121839343.9U CN202121839343U CN215714662U CN 215714662 U CN215714662 U CN 215714662U CN 202121839343 U CN202121839343 U CN 202121839343U CN 215714662 U CN215714662 U CN 215714662U
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Abstract
The utility model discloses a temporary hinge structure for a steel box girder of a suspension bridge, which comprises a hinge seat and a connecting seat machine pin shaft. Articulated seat includes first bottom plate and first connecting plate, and first bottom plate is equipped with along horizontal bridge to the first fixed orifices that extends, and first connecting plate is installed on first bottom plate, and first connecting plate is equipped with along indulging the bridge to the round pin shaft hole that extends. The connecting seat includes second bottom plate and second connecting plate, is equipped with on the second bottom plate along the second fixed orifices of horizontal bridge to extending, and the second connecting plate is installed on the second bottom plate, and the mounting hole has been seted up to the second connecting plate. The pin shaft penetrates through the mounting hole and the pin shaft hole to enable the first connecting plate to be hinged with the second connecting plate. Above-mentioned interim hinge structure of suspension bridge steel box girder can dismantle repeated turnover and use, has practiced thrift the cost, has ensured the accurate positioning of steel box girder, has practiced thrift the time limit for a project, has guaranteed construction safety, has eliminated machining error, and the job site is easily installed, construction convenience is swift.
Description
Technical Field
The utility model relates to the technical field of bridge construction, in particular to a temporary hinge structure of a steel box girder of a suspension bridge.
Background
The suspension bridge is a bridge with a cable or a chain cable bearing tension as a main bearing component, most of the suspension bridges, particularly large-span suspension bridges are ground anchor type suspension bridges, and the tension of a main cable is transmitted to a foundation by a gravity type anchoring body (an anchor) or a rock cave type anchoring body (a rock anchor) at the end part of the bridge. The superstructure carries out main cable earlier and erects, carries out girder installation again, adopts "cable earlier back roof beam" construction technology promptly. The suspension bridge can adopt a self-anchoring type sometimes, the end part of a suspension cable bearing large tension is fixed at the end part of a rigid beam, so that the tension of a main cable is directly transmitted to a stiffening beam of the suspension bridge to bear, most of the self-anchoring type suspension bridges firstly erect a support to install a main beam and then erect the main cable, namely, a construction process of 'beam first and cable second' is adopted, but when the local conditions are poor and the navigation is limited, the support cannot be erected in the middle of a navigation channel, and the construction process of 'cable first and beam second' is also adopted for construction as the ground anchoring type suspension bridge.
When the ground anchor type suspension bridge and the self-anchored suspension bridge adopting the construction process of 'cable first and beam second' are installed on the main beam, the linear change of the main cable is large, the linear of the bridge deck is concave in the front period of installation of the main beam, so that a certain break angle is formed between the adjacent steel box girders, the circular seam top plates of the adjacent steel box girders are closed, the bottom plates are opened, and a certain included angle is formed. Along with the increase of the number of the hoisting beam sections, the line type of the main cable gradually tends to be gentle until the main beam is closed, the line type of the bridge deck gradually bulges upwards to approach the design line type, the circular seam bottom plate of the steel box girder is closed, the top plate is opened, in order to adapt to the change of the angle of the steel box girder, the temporary hinges are arranged to temporarily connect the steel box girders of the adjacent sections, and after the main beam is closed, the whole rigid connection is carried out, so that the welding of the circular seam is completed.
Present articulated elements conventional way is welding or bolt in steel box girder top surface, match the installation in the factory in advance, because of the machining error influence, the difficulty of counterpointing during the field erection, and because of the bridge floor cross slope influence, the circular seam position roof contacts earlier at road center line position between adjacent steel box girder, thereby the messenger keeps away from road center line side circular seam grow gradually, after the articulated elements installation, this seam width can't be eliminated, need to carry out the wide adjustment of beam segment seam after demolising the articulated elements before the full-bridge closes a family, otherwise this seam width accumulation length will lead to closing a mouthful diminish, just can close a family smoothly through the cutting beam segment, nevertheless the cutting beam segment will influence the structure safety. Meanwhile, the main beam is complex in installation process due to the fact that the hinged elements are cut, dislocation possibly occurs between beam sections after the hinged elements are detached, the on-site circular seam adjusting difficulty is increased, certain potential safety hazards exist, construction risks are high, and even the stress safety of the structure is affected.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a temporary hinge structure for a steel box girder of a suspension bridge, aiming at the problems that after the adjacent steel box girders are temporarily connected by the conventional hinge, the alignment is difficult during the field installation and the adjustment of the seam width of the girder sections is difficult.
A suspension bridge steel box girder temporary hinge structure comprising:
the hinge seat comprises a first bottom plate and a first connecting plate, the first bottom plate is provided with a first fixing hole extending along the transverse bridge direction, the first connecting plate is installed on the first bottom plate, and the first connecting plate is provided with a pin shaft hole extending along the longitudinal bridge direction;
the connecting seat comprises a second bottom plate and a second connecting plate, a second fixing hole extending along the transverse bridge direction is formed in the second bottom plate, the second connecting plate is installed on the second bottom plate, and a mounting hole is formed in the second connecting plate; and
and the pin shaft penetrates through the mounting hole and the pin shaft hole so as to hinge the first connecting plate and the second connecting plate.
In one embodiment, the hinge base further comprises a first rib plate, and the first rib plate connects the first bottom plate and the first connecting plate.
In one embodiment, the number of the first connecting plates is two, two first connecting plates are arranged on the first bottom plate at intervals, and the second connecting plate is inserted between the two first connecting plates.
In one embodiment, the hinge seat further comprises a second rib plate, the second rib plate is located between the two first connecting plates, and the second rib plate connects the first bottom plate and the two first connecting plates.
In one embodiment, the hinge seat further comprises a strip-shaped attachment plate, the strip-shaped attachment plate is mounted on the first connecting plates, the strip-shaped iron plate is located on two side walls, far away from each other, of the first connecting plates, and the strip-shaped attachment plate extends around the pin shaft hole to form a ring shape.
In one embodiment, the connecting socket further comprises a third rib plate, and the third rib plate is connected with the second bottom plate and the second connecting plate.
In one embodiment, the connecting seat further comprises a circular patch board, the circular patch board is mounted on the second connecting plate, the circular patch board is arranged on two opposite sides of the first connecting plate, and the circular patch board extends around the mounting hole to form a circular ring shape.
In one embodiment, the number of the first connecting plates is two, the two first connecting plates are arranged on the first base plate at intervals, and the sum of the thicknesses of the circular pasting plates and the first connecting plates is equal to the distance between the two first connecting plates.
The temporary hinging structure for the steel box girder of the suspension bridge at least has the following advantages:
(1) articulated seat and connecting seat accessible high strength bolt connection in steel box girder top can dismantle repeated turnover and use, have avoided cutting off the waste to the material after the welding, have practiced thrift the cost.
(2) The first bottom plate and the second bottom plate are respectively provided with a fixing hole extending along the transverse bridge direction, so that the transverse bridge direction position adjustment of the steel box girder can be realized; the first connecting plate is provided with a pin shaft hole extending along the longitudinal bridge direction, so that the adjustment of the longitudinal bridge direction seam width of the steel box girder can be realized; through the round pin axle that sets up, the change of adaptable steel box girder angle in hoist and mount process.
(3) The tool such as chain block, jack is utilized to carry out longitudinal and transverse positioning, then the pin shaft is installed, the accurate positioning of the steel box girder is ensured, the later cutting of the temporary hinge is not needed to carry out seam width adjustment, the construction period is saved, and the construction safety is ensured.
(4) All be equipped with along the horizontal bridge to the fixed orifices that extends on first bottom plate and the second bottom plate, first connecting plate sets up along indulging the bridge to the round pin shaft hole that extends, has solved conventional articulated elements and has installed in steel box girder top surface in advance, because of the location difficulty when machining error leads to the field installation, has eliminated machining error, and the job site is easily installed, and convenient construction is swift.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.
FIG. 1 is a schematic structural view of a temporary hinge structure of a steel box girder of a suspension bridge in one embodiment;
FIG. 2 is an exploded view of the temporary hinge structure of the steel box girder of the suspension bridge shown in FIG. 1;
FIG. 3 is a top view of the temporary hinge structure of the steel box girder of the suspension bridge shown in FIG. 2;
FIG. 4 is a side view of the temporary hinge structure of the steel box girder of the suspension bridge shown in FIG. 2;
FIG. 5 is a schematic view of the top opening of the steel box girder being closed and the bottom opening being opened;
FIG. 6 is a schematic view of the steel box girder girth closure;
fig. 7 is a schematic diagram of the adjustment of the opening of the steel box girder circular seam.
Reference numerals:
10-steel box girder, 12-top plate, 100-hinged seat, 110-first base, 112-first fixing hole, 120-first connecting plate, 122-pin shaft hole, 130-first rib plate, 140-second rib plate, 150-strip-shaped flitch plate, 200-connecting seat, 210-second bottom plate, 212-second fixing hole, 220-second connecting plate, 222-mounting hole, 230-third rib plate and 300-pin shaft.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather construed as embodying the utility model in accordance with the principles of the utility model.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Referring to fig. 1, a temporary hinge structure for a steel box girder of a suspension bridge in an embodiment is used for being installed on the top of the steel box girder 10 to connect two adjacent steel box girders 10. Specifically, the temporary hinge structure for the steel box girder of the suspension bridge comprises a hinge base 100, a connecting base 200 and a pin 300.
Referring to fig. 2 and 3, the hinge base 100 is disposed on the top of the steel box girder 10, and the hinge base 100 includes a first bottom plate 110 and a first connecting plate 120. The first bottom plate 110 is provided with a first fixing hole 112 extending along the transverse bridge direction, the top plate 12 of the steel box girder 10 is provided with a through hole (not shown), and a high-strength bolt penetrates through the first fixing hole 112 and the through hole to fixedly connect the first bottom plate 110 and the steel box girder 10. Wherein, first fixed orifices 112 extend to the bar hole along the horizontal bridge, can realize the horizontal bridge of steel box girder 10 and transfer the position. In one embodiment, the number of the first fixing holes 112 is multiple, and the multiple first fixing holes 112 are arranged in an array on the first base plate 110.
The first connecting plate 120 is mounted on the first base plate 110, and the first connecting plate 120 extends beyond the first base plate 110 to facilitate connection with the connecting socket 200. The first link plate 120 is provided with a pin-shaft hole 122 extending in the longitudinal bridge direction. In one embodiment, the hinge base 100 further includes a first rib 130, and the first rib 130 connects the first base plate 110 and the first connecting plate 120 to ensure the connection strength between the first connecting plate 120 and the first base plate 110.
Further, the number of the first connection plates 120 is two, two first connection plates 120 are spaced apart on the first base plate 110, and the two first connection plates 120 are parallel to each other. The hinge base 100 further includes a second rib plate 140, the second rib plate 140 is located between the two first connecting plates 120, and the second rib plate 140 connects the first base plate 110 and the two first connecting plates 120. The opposite sides of the first connecting plate 120 are both provided with rib plates, which can ensure the stability of the first connecting plate 120.
In one embodiment, the hinge base 100 further comprises a strip-shaped attachment plate 150, the strip-shaped attachment plate 150 is mounted on the first connecting plate 120, and the strip-shaped attachment plate 150 is located on the side wall of the two first connecting plates 120 away from each other, i.e. the strip-shaped attachment plate 150 is located on the outer side of the first connecting plate 120. The strip-shaped attachment plate 150 extends around the pin hole 122 to form a ring shape, and the strip-shaped attachment plate 150 can maintain the strength of the first connection plate 120 after the pin hole 122 is opened in the first connection plate 120, thereby preventing the first connection plate 120 from being damaged.
The connecting base 200 is disposed on the top of the steel box girder 10, and the connecting base 200 and the hinge base 100 are respectively located on two adjacent steel box girders 10. The connecting seat 200 includes a second bottom plate 210 and a second connecting plate 220, the second bottom plate 210 is provided with a second fixing hole 212 extending along the transverse bridge direction, the top plate 12 of the steel box girder 10 is provided with a through hole, and a high-strength bolt penetrates through the second fixing hole 212 and the through hole, so that the second bottom plate 210 and the steel box girder 10 are fixedly connected. Wherein, second fixed orifices 212 extends for the bar hole along the horizontal bridge to, can realize steel box girder 10 horizontal bridge to the accent position. In one embodiment, the number of the second fixing holes 212 is multiple, and the multiple second fixing holes 212 are arranged in an array on the second base plate 210.
The second coupling plate 220 is mounted on the second base plate 210, and the second coupling plate 220 extends beyond the second base plate 210 to facilitate coupling with the first coupling plate 120 of the hinge housing 100. The second connecting plate 220 is opened with a mounting hole 222. In one embodiment, the coupling socket 200 further includes a third rib 230, and the third rib 230 connects the second bottom plate 210 and the second connecting plate 220. The third rib 230 may maintain support of the second connection plate 220 and ensure connection strength between the second connection plate 220 and the second base plate 210.
In one embodiment, the connecting socket 200 further includes a circular plate 240, the circular plate 240 is mounted on the second connecting plate 220, and the circular plate 240 is disposed on two opposite sides of the first connecting plate 120. The circular flitch 240 extends around the mounting hole 222 to be in a circular ring shape, and after the mounting hole 222 is formed in the second connecting plate 220, the strength of the second connecting plate 220 can be ensured by the circular flitch 240, so that the second connecting plate 220 is prevented from being damaged due to the fact that the mounting hole 222 is formed in the second connecting plate 220.
Further, since the number of the first connection plates 120 is two, the second connection plate 220 is interposed between the two first connection plates 120. The sum of the thicknesses of the circular pasting plate 240 and the first connecting plate 120 is equal to the distance between the two first connecting plates 120, so that the stable and smooth relative motion can be ensured after the second connecting plate 220 is connected with the first connecting plate 120.
Referring to fig. 4, the pin 300 is inserted into the mounting hole 222 and the pin hole 122 to hinge the first connecting plate 120 and the second connecting plate 220, and the first connecting plate 120 and the second connecting plate 220 can rotate relative to each other to adapt to the angle change of the steel box girder 10. Meanwhile, as the pin shaft hole 122 is a strip-shaped hole, the pin shaft 300 can move in the pin shaft hole 122, and the first connecting plate 120 and the second connecting plate 220 can move relatively, so that the circumferential seam distance between the steel box girders 10 can be adjusted. In one embodiment, a cap is provided at one end of the pin 300, and the cap can be attached to the strip-shaped attachment plate 150 to position the pin 300 and prevent the pin 300 from coming loose.
Referring to fig. 5 to 7, the working process of the temporary hinge structure for steel box girders of a suspension bridge specifically includes:
the first bottom plate 110 and the second bottom plate 210 are connected to the top plate 12 of the steel box girder 10 by high-strength bolts, so that the hinge base 100 and the connection base 200 are mounted on the steel box girder 10. Then, the steel box girder 10 is hoisted, the pin shaft 300 is installed, and the transverse bridge position of the steel box girder 10 is adjusted through the strip-shaped fixing holes on the first bottom plate 110 and the second bottom plate 210, so that the transverse alignment accuracy of the steel box girder 10 is ensured. At this time, the top opening of the steel box girder 10 is closed and the bottom opening is opened due to the large angle change of the main cable in the earlier stage.
In the hoisting process, the opening angle of the bottom opening is smaller and smaller along with the linear change, the circular seam is gradually closed, and in the process, the first connecting plate 120 and the second connecting plate 220 are hinged through the pin shaft 300 to adapt to the change of the angle of the steel box girder 10.
Adjust the steel box girder 10 circumferential weld through chain block and jack before closing the dragon, because round pin shaft hole 122 is the bar hole, round pin axle 300 can be at round pin shaft hole 122 internal motion, realizes that the circumferential weld interval between the steel box girder 10 can be adjusted, ensures that the interval can satisfy the hoist and mount requirement after closing the dragon, avoids cutting the roof beam section in a large number. After closure, the width of the seam is adjusted through temporary hinging, so that the width of the seam between the steel box girders 10 can meet the welding requirement, and the welding quality is ensured.
Above-mentioned suspension bridge steel box girder hinge structure temporarily, can dismantle repeated turnover and use, avoided the welding back to cut off the waste to the material, the cost is practiced thrift, can realize steel box girder 10 horizontal bridge to the positioning and the adjustment of steel box girder 10 longitudinal bridge to the seam width, adaptable steel box girder 10 is in the change of hoist and mount in-process angle, it installs in steel box girder 10 top surface in advance to have solved conventional articulated elements, location difficulty when leading to the field installation because of machining error, machining error has been eliminated, the job site is easily installed, convenient construction is swift. The steel box girder 10 is accurately positioned, the later-stage cutting of the temporary hinges is not needed for adjusting the seam width, the construction period is saved, and the construction safety is ensured.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (8)
1. The utility model provides a suspension bridge steel box girder temporary hinge structure which characterized in that includes:
the hinge seat comprises a first bottom plate and a first connecting plate, the first bottom plate is provided with a first fixing hole extending along the transverse bridge direction, the first connecting plate is installed on the first bottom plate, and the first connecting plate is provided with a pin shaft hole extending along the longitudinal bridge direction;
the connecting seat comprises a second bottom plate and a second connecting plate, a second fixing hole extending along the transverse bridge direction is formed in the second bottom plate, the second connecting plate is installed on the second bottom plate, and a mounting hole is formed in the second connecting plate; and
and the pin shaft penetrates through the mounting hole and the pin shaft hole so as to hinge the first connecting plate and the second connecting plate.
2. The temporary hinge structure of the steel box girder of the suspension bridge according to claim 1, wherein the hinge base further comprises a first rib plate, and the first rib plate connects the first bottom plate and the first connecting plate.
3. The temporary hinge structure for steel box girders according to claim 1, wherein the number of the first connecting plates is two, two of the first connecting plates are spaced apart on the first bottom plate, and the second connecting plate is interposed between the two first connecting plates.
4. The temporary hinge structure of the steel box girder of the suspension bridge according to claim 3, wherein the hinge base further comprises a second rib plate, the second rib plate is located between the two first connecting plates, and the second rib plate connects the first bottom plate and the two first connecting plates.
5. The temporary hinge structure of steel box girder for suspension bridge according to claim 3, wherein the hinge seat further comprises a strip-shaped attachment plate, the strip-shaped attachment plate is mounted on the first connection plate, the strip-shaped iron plate is located on the side walls of the two first connection plates away from each other, and the strip-shaped attachment plate extends in a ring shape around the pin shaft hole.
6. The temporary hinge structure for a steel box girder of a suspension bridge according to claim 1, wherein the connecting seat further comprises a third rib plate connecting the second bottom plate and the second connecting plate.
7. The temporary hinge structure of the steel box girder of the suspension bridge according to claim 1, wherein the connection seat further comprises a circular patch plate, the circular patch plate is installed on the second connection plate, the circular patch plate is installed on both opposite sides of the first connection plate, and the circular patch plate extends around the installation hole to form a circular ring shape.
8. The temporary hinge structure for steel box girders according to claim 7, wherein the number of the first coupling plates is two, two first coupling plates are spaced apart from each other on the first base plate, and the sum of the thicknesses of the circular flitch plates and the first coupling plates is equal to the interval between the two first coupling plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121839343.9U CN215714662U (en) | 2021-08-06 | 2021-08-06 | Temporary hinging structure for steel box girder of suspension bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121839343.9U CN215714662U (en) | 2021-08-06 | 2021-08-06 | Temporary hinging structure for steel box girder of suspension bridge |
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| Publication Number | Publication Date |
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| CN215714662U true CN215714662U (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121839343.9U Active CN215714662U (en) | 2021-08-06 | 2021-08-06 | Temporary hinging structure for steel box girder of suspension bridge |
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| CN (1) | CN215714662U (en) |
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2021
- 2021-08-06 CN CN202121839343.9U patent/CN215714662U/en active Active
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