CN217974087U - Bracket mounting structure for construction of steel-concrete composite bridge cantilever - Google Patents
Bracket mounting structure for construction of steel-concrete composite bridge cantilever Download PDFInfo
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- CN217974087U CN217974087U CN202222187832.1U CN202222187832U CN217974087U CN 217974087 U CN217974087 U CN 217974087U CN 202222187832 U CN202222187832 U CN 202222187832U CN 217974087 U CN217974087 U CN 217974087U
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Abstract
The utility model discloses a bracket mounting structure for cantilever construction of a steel-concrete composite bridge, wherein a bracket is arranged below a flange plate of a steel box girder; the bracket comprises a triangular bracket, a sleeve, a threaded rod, a fixing plate, a limiting plate and a supporting and adjusting assembly; the top end of the triangular support is detachably connected with the flange plate through a connecting piece, the bottom of the triangular support is fixedly provided with a sleeve, a threaded rod is movably inserted in the sleeve, one end of the threaded rod is fixedly provided with a fixing plate, and a limiting plate is screwed on the threaded rod between the sleeve and the fixing plate; and a supporting and adjusting assembly is arranged on the fixing plate, and a supporting plate of the supporting and adjusting assembly is abutted with a web plate of the steel box girder. The utility model has the advantages that: the utility model has simple structure and easy realization, which not only can not damage the steel box girder web plate, but also ensures the integral supporting stability of the whole bracket; the utility model discloses a bracket application scope is wide, repeatedly usable.
Description
The technical field is as follows:
the utility model relates to a bracket mounting structure, in particular to a bracket mounting structure that is used for construction of reinforced concrete composite bridge cantilever.
The background art comprises the following steps:
the construction work of Chinese bridges is rapidly developed in recent years and achieves excellent performances, and steel-concrete composite beam bridges are increasingly applied to engineering practice due to the excellent structural performance of the steel-concrete composite beam bridges. The combined beam bridge has the advantages of a concrete bridge and a steel bridge, conforms to the development direction of a large-span bridge, conforms to the international advanced technology development trend, has obvious technical economic benefits and social benefits, and has great development prospects. During steel-concrete combined construction, cast-in-place concrete of cantilevers on two sides of a bridge is combined with concrete at a steel box girder to form an integral girder bridge structure. The patent with the application number of CN202020566180.0 discloses a bracket system for an I-shaped steel-concrete composite beam cast-in-place flange plate, wherein a cushion block is abutted to a web plate of I-shaped steel, a lead screw is perpendicular to the I-shaped steel, the cushion block in the fixing mode cannot adjust the angle, different brackets need to be manufactured for steel box girder web plates with different inclination angles, time is consumed, and manufacturing cost is high; meanwhile, the upward inclination angle of the cross beam is fixed, so that the cantilever cannot be suitable for cantilevers with different inclination angle designs, and the application range is narrow.
The utility model has the following contents:
an object of the utility model is to provide a simple structure, it is stable good, and application scope is wide be used for bracket mounting structure of reinforced concrete combination bridge cantilever construction.
The utility model discloses by following technical scheme implement: the patent aims at providing a bracket mounting structure for cantilever construction of a steel-concrete composite bridge, wherein a bracket is arranged below a flange plate of a steel box girder; the bracket comprises a triangular bracket, a sleeve, a threaded rod, a fixing plate, a limiting plate and a supporting and adjusting assembly; the top end of the triangular support is detachably connected with the flange plate through a connecting piece, the bottom of the triangular support is fixedly provided with the sleeve, the threaded rod is movably inserted in the sleeve, one end of the threaded rod is fixedly provided with the fixing plate, and the threaded rod between the sleeve and the fixing plate is screwed with the limiting plate; the fixing plate is provided with the support adjusting assembly, and a support plate of the support adjusting assembly is abutted to a web plate of the steel box girder.
Further, the A-frame comprises horizontal pole, montant and diagonal brace of head and the tail fixed connection in proper order, the horizontal pole is close to the one end of steel box girder with the flange board passes through the connection can be dismantled to the connecting piece, the sleeve is fixed the bottom of montant.
Furthermore, the connecting piece comprises a screw rod, a first nut and a second nut, the screw rod sequentially penetrates through the cross rod and the flange plate, and the first nut and the second nut are respectively screwed at two ends of the screw rod; the first nut is located below the cross rod, and the second nut is located above the flange plate.
Furthermore, a plurality of reinforcing rods are fixed in the triangular support.
Furthermore, the support adjusting assembly comprises a support plate, a guide plate, a slide rod, a connecting plate, an adjusting screw rod and an adjusting nut; the upper edge of one side surface of the fixed plate, which is far away from the limiting plate, is rotatably hinged with the upper edge of the supporting plate; the utility model discloses a supporting plate, including the backup pad, fixed plate, slide bar, connecting plate, adjusting screw rod, adjusting nut, backup pad with the relative side of fixed plate be fixed with the articulated limit mutually perpendicular of backup pad the deflector set up on the deflector with the articulated limit mutually perpendicular's of backup pad bar hole is equipped with in the bar hole interpolation the slide bar, the both ends of slide bar are fixed with the connecting plate, the connecting plate with adjusting screw rod's one end activity hinge joint, adjusting screw rod's the other end runs through the fixed plate adjusting screw rod is last spiro union has adjusting nut, adjusting nut with fixed plate looks butt.
The utility model has the advantages that: the utility model discloses simple structure, the easy realization, through setting up the support adjusting part, can be according to the inclination of the web of steel box girder and then adjust the contained angle between backup pad and the fixed plate for the backup pad can be laminated completely to the web of steel box girder, ensures that the backup pad contacts with the web maximum area of steel box girder all the time, can not damage the steel box girder web promptly, has guaranteed the whole support stability of whole bracket again, also can adjust the angle that the tripod horizontal pole goes up to one side simultaneously; the utility model discloses a support that the bracket can be applicable to the web plate of the steel box girder at different inclination to can be used for the cantilever of different inclination designs, application scope is wide, repeatedly usable.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.
The steel box girder comprises a steel box girder 1, a flange plate 11, a web plate 12, a bracket 2, a triangular support 21, a cross bar 211, a vertical bar 212, a diagonal brace 213, a reinforcing bar 214, a sleeve 22, a threaded rod 23, a fixing plate 24, a limiting plate 25, a support adjusting component 26, a support plate 261, a guide plate 262, a strip-shaped hole 2621, a sliding rod 263, a connecting plate 264, an adjusting screw 265, an adjusting nut 266, a connecting piece 27, a screw 271, a first nut 272 and a second nut 273.
The specific implementation mode is as follows:
as shown in fig. 1-2, a bracket mounting structure for cantilever construction of a steel-concrete composite bridge, a bracket 2 is arranged below a flange plate 11 of a steel box girder 1; the bracket 2 comprises a triangular bracket 21, a sleeve 22, a threaded rod 23, a fixing plate 24, a limiting plate 25 and a support adjusting component 26; the top end of the triangular support 21 is detachably connected with the flange plate 11 through a connecting piece 27, the bottom of the triangular support 21 is fixedly provided with a sleeve 22, a threaded rod 23 is movably inserted in the sleeve 22, one end of the threaded rod 23 is fixedly provided with a fixing plate 24, and a limiting plate 25 is screwed on the threaded rod 23 between the sleeve 22 and the fixing plate 24; a support adjusting assembly 26 is arranged on the fixing plate 24, and a support plate 261 of the support adjusting assembly 26 is abutted against the web plate 12 of the steel box girder 1.
The triangular support 21 consists of a cross rod 211, a vertical rod 212 and an inclined strut 213 which are fixedly connected end to end in sequence, a plurality of reinforcing rods 214 are fixed in the triangular support 21 and used for reinforcing the support of the triangular support 21, one end of the cross rod 211 close to the steel box girder 1 is detachably connected with the flange plate 11 through a connecting piece 27, and the sleeve 22 is fixed at the bottom of the vertical rod 212; the connecting piece 27 comprises a screw 271, a first nut 272 and a second nut 273, the screw 271 sequentially penetrates through the cross bar 211 and the flange plate 11, and the first nut 272 and the second nut 273 are respectively screwed at two ends of the screw 271; the first nut 272 is located below the crossbar 211 and the second nut 273 is located above the flange plate 11; the first nut 272 and the second nut 273 have opposite threads; after the pouring of completion cantilever, with first nut 272 from screw rod 271 spiral-down to with screw rod 271 from second nut 273 at the back of unscrewing, the utility model discloses bracket 2 can be followed flange 11 and removed, consequently the utility model discloses bracket 2 can be by used repeatedly.
The support adjusting assembly 26 includes a support plate 261, a guide plate 262, a slide rod 263, a connection plate 264, an adjusting screw 265, and an adjusting nut 266; the upper edge of one side surface of the fixing plate 24 far away from the limiting plate 25 is hinged with the upper edge of the supporting plate 261 in a rotating way; a guide plate 262 which is perpendicular to the hinged edge of the support plate 261 is fixed on one side face of the support plate 261 opposite to the fixed plate 24, a strip-shaped hole 2621 which is perpendicular to the hinged edge of the support plate 261 is formed in the guide plate 262, a sliding rod 263 is inserted into the strip-shaped hole 2621, connecting plates 264 are fixed at two ends of the sliding rod 263, the connecting plates 264 are movably hinged with one end of an adjusting screw rod 265, the other end of the adjusting screw rod 265 penetrates through the fixed plate 24, an adjusting nut 266 is screwed on the adjusting screw rod 265, and the adjusting nut 266 is abutted to the fixed plate 24; the adjusting screw 265 is adjusted by rotating the adjusting nut 266, and the included angle between the fixing plate 24 and the supporting plate 261 is further adjusted, so that the supporting plate 261 can be completely attached to the web 12 of the steel box girder 1, the supporting plate 261 is ensured to be always in maximum area contact with the web 12 of the steel box girder 1, the web 12 of the steel box girder 1 cannot be damaged, and the overall supporting stability of the whole bracket 2 is ensured; meanwhile, the inclined angle of the cross rod 211 of the triangular bracket 21 can be adjusted by adjusting the adjusting screw rod 265, so that the cantilever is suitable for cantilevers with different inclination angles.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A bracket mounting structure for cantilever construction of a steel-concrete composite bridge is characterized in that a bracket is arranged below a flange plate of a steel box girder; the bracket comprises a triangular bracket, a sleeve, a threaded rod, a fixing plate, a limiting plate and a supporting and adjusting assembly; the top end of the triangular support is detachably connected with the flange plate through a connecting piece, the bottom of the triangular support is fixedly provided with the sleeve, the threaded rod is movably inserted in the sleeve, one end of the threaded rod is fixedly provided with the fixed plate, and the limiting plate is screwed on the threaded rod between the sleeve and the fixed plate; the fixing plate is provided with the support adjusting assembly, and a support plate of the support adjusting assembly is abutted to a web plate of the steel box girder.
2. The bracket mounting structure for cantilever construction of a steel-concrete composite bridge of claim 1, wherein the triangular bracket is composed of a cross bar, a vertical bar and a diagonal brace which are sequentially and fixedly connected end to end, one end of the cross bar close to the steel box girder is detachably connected with the flange plate through the connecting piece, and the sleeve is fixed at the bottom of the vertical bar.
3. The bracket mounting structure for cantilever construction of a steel-concrete composite bridge of claim 2, wherein the connecting member comprises a screw, a first nut and a second nut, the screw sequentially penetrates through the cross bar and the flange plate, and the first nut and the second nut are respectively screwed at two ends of the screw; the first nut is located below the cross rod, and the second nut is located above the flange plate.
4. The bracket mounting structure for cantilever construction of a steel-concrete composite bridge according to claim 2, wherein a plurality of reinforcing rods are fixed in the triangular brackets.
5. The bracket mounting structure for cantilever construction of a steel-concrete composite bridge according to any one of claims 1 to 4, wherein the support adjusting assembly comprises the support plate, a guide plate, a slide rod, a connecting plate, an adjusting screw rod and an adjusting nut; the upper edge of one side surface of the fixed plate, which is far away from the limiting plate, is rotatably hinged with the upper edge of the supporting plate; the backup pad with a side that the fixed plate is relative be fixed with the articulated limit mutually perpendicular of backup pad the deflector seted up on the deflector with the articulated limit mutually perpendicular's of backup pad bar hole the bar downthehole interpolation of bar is equipped with the slide bar, the both ends of slide bar are fixed with the connecting plate, the connecting plate with accommodate the lead screw's one end activity hinge joint, accommodate the lead screw's the other end runs through the fixed plate accommodate the lead screw is last the spiro union have adjusting nut, adjusting nut with fixed plate looks butt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222187832.1U CN217974087U (en) | 2022-08-18 | 2022-08-18 | Bracket mounting structure for construction of steel-concrete composite bridge cantilever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222187832.1U CN217974087U (en) | 2022-08-18 | 2022-08-18 | Bracket mounting structure for construction of steel-concrete composite bridge cantilever |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217974087U true CN217974087U (en) | 2022-12-06 |
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ID=84260150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222187832.1U Active CN217974087U (en) | 2022-08-18 | 2022-08-18 | Bracket mounting structure for construction of steel-concrete composite bridge cantilever |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217974087U (en) |
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2022
- 2022-08-18 CN CN202222187832.1U patent/CN217974087U/en active Active
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