CN217997839U - Bracket for bridge construction - Google Patents

Abstract

The utility model discloses a bracket for bridge construction, which has the structural key points that the bracket comprises a pre-embedded box fixed on the side surface of a pier stud, the pre-embedded box is connected with a support bracket through a bracket piece, the support bracket comprises a bracket diagonal rod and a bracket horizontal rod, the upper end of the bracket diagonal rod is connected with the bracket horizontal rod through a pin shaft, an inner side support arm extending upwards is fixed on the bracket diagonal rod, the upper end of the inner side support arm is provided with a support plate contacting with the bottom surface of the bracket horizontal rod, and when the bracket horizontal rod contacts with the support plate, the inner side support arm is vertically arranged with the bracket horizontal rod; with prior art relative ratio, the beneficial effects of the utility model are that: the integral assembly of the bracket can be carried out on the ground, and in the hoisting and mounting process after the assembly is finished, each part has higher stability, the mounting difficulty is reduced, the construction quality is ensured, and the overhead welding construction operation is reduced.

Description

Bracket for bridge construction

Technical Field

The utility model belongs to bridge construction equipment field, concretely relates to be a bracket of using in continuous bridge work progress.

Background

The method is characterized in that a No. 0 block of the continuous girder bridge is generally cast in place by a bracket, the continuous girder bridge is taken as a hanging basket splicing platform after casting is finished and is prepared for subsequent box girder segment construction, the No. 0 block has the characteristics of girder height, large volume, dense reinforcing steel bar distribution, multiple embedded pipelines and the like, so the continuous girder bridge is considered to be one of the parts with the largest construction difficulty of the continuous girder bridge, the bracket is a temporary engineering structure for No. 0 block construction, the main function of the bracket is to be used as a support for various loads during the construction of the No. 0 block, and the bracket can be detached after the construction of the No. 0 block is finished, so the safety, reasonability and scientificity of the bracket are directly related to the success or failure and the cost control effect of the box girder full-bridge construction, the method generally adopted in the prior art is to embed a steel plate and a horizontal steel truss piece (composed of channel steel) in a pier body, weld the horizontal steel truss piece and an inclined steel truss piece as a bracket support, and a horizontal and longitudinal steel distribution girder is arranged on the bracket; however, in the construction mode, the whole bracket needs to be assembled in high altitude, the installation difficulty of the bracket rod piece is high, the construction period is long, and the construction quality and safety cannot be effectively guaranteed due to the high altitude welding construction operation.

Disclosure of Invention

An object of the utility model is to provide a can improve efficiency of construction's bracket for bridge construction.

In order to realize the above-mentioned purpose, the utility model discloses a technical scheme be, a bracket is used in bridge construction, its structural feature is, including fixing the pre-buried box on the side of pier stud, pre-buried box is connected with through bracket spare and props the bracket, prop the bracket and include bracket down tube and bracket horizontal pole, the upper end and the bracket horizontal pole of bracket down tube pass through the round pin hub connection, be fixed with the inboard brace arm that upwards extends on the bracket down tube, the upper end of inboard brace arm is provided with the layer board with the bottom surface contact of bracket horizontal pole, and when bracket horizontal pole and layer board contact, inboard brace arm sets up with the bracket horizontal pole is perpendicular, but be provided with the ring body of vertical removal back location on the inboard brace arm, be connected with two telescopic oblique support arms on the ring body, two oblique support arms use inboard brace arm to set up as the central line symmetry, the upper end of every oblique support arm all is connected with the flat tray, flat tray and layer board parallel arrangement, it has two anticreeps to articulate on the flat tray, two anticreeps symmetry sets up and fixes a position the distribution roof beam above the bracket horizontal pole, connect through the opposite drawing lead screw between two anticreeps.

Furthermore, the anti-falling head comprises a turnover plate body, two limiting clamping plates are vertically arranged on the turnover plate body, when the turnover plate body is in a vertical state, the two limiting clamping plates are both positioned above the cross rod of the bracket, and the upper side of the turnover plate body is connected with a U-shaped fastener which leads to the turnover plate body.

Further, the U-shaped fastener includes two parallel arrangement's spacing slat, and two equal vertical settings of spacing slat are connected with the screw thread pin between the upper end of two spacing slats, and every spacing slat all can dismantle with turning over the board body and be connected.

Furthermore, a base plate is fixed at the lower end of the limiting strip plate, threaded through holes are formed in the base plate, an adjusting strip plate fixed on the outer side surface of the turnover plate body is arranged below the base plate, and the base plate is connected with the adjusting strip plate through bolts.

Furthermore, a side opening is arranged on the flat tray, and the two anti-falling heads are symmetrically arranged by taking the side opening as a central line.

Furthermore, the inclined support arm is connected with an arc-shaped stay bar which bends downwards, and the lower end of the arc-shaped stay bar is propped against the inner side support arm.

With prior art relative ratio, the beneficial effects of the utility model are that: the integral assembly of the bracket can be carried out on the ground, and in the hoisting and mounting process after the assembly is finished, each part has higher stability, the mounting difficulty is reduced, the construction quality is ensured, and the overhead welding construction operation is reduced.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic view of the anti-falling head structure of the present invention;

FIG. 3 is a schematic view of the structure of the flat pallet of the present invention;

FIG. 4 is a schematic view of the connection between the anti-separation head and the flat tray of the present invention;

the anti-falling device comprises a pier stud 1, an embedded box 2, a bracket diagonal rod 3, a bracket horizontal rod 4, an inner side supporting arm 5, a supporting plate 6, a gathering buckle 7, a ring body 8, an inclined supporting arm 9, a flat tray 10, an anti-falling head 11, a side opening 12, a tension rod pair 13, a turnover plate body 14, a limiting clamping plate 15, a limiting strip plate 16, a threaded stop rod 17, a threaded hole 18, a base plate 19, an adjusting strip plate 20 and an arc-shaped supporting rod 21.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1 to 4, a bracket for bridge construction comprises a pre-buried box 2 fixed on the side of a pier stud 1, the pre-buried box 2 is connected with a bracket support through a bracket piece, wherein the pre-buried box 2 is divided into a high-level pre-buried box and a low-level pre-buried box along the longitudinal arrangement of the pier stud 1, the bracket support comprises a bracket diagonal rod 3 and a bracket cross rod 4, the upper end of the bracket diagonal rod 3 is connected with the bracket cross rod 4 through a pin shaft, an inner side support arm 5 extending upwards is fixed on the bracket diagonal rod 3, the upper end of the inner side support arm 5 is provided with a support plate 6 contacting with the bottom surface of the bracket cross rod 4, when the bracket cross rod 4 contacts with the support plate 6, the inner side support arm 5 is perpendicular to the bracket cross rod 4, the support plate 6 is provided with a U-shaped close buckle 7, after the inner side support arm 5 is perpendicular to the bracket cross rod 4, the bracket cross rod 4 is closely attached to the support plate 6 through the close buckle 7, at the moment, the bracket cross rod 4, the bracket diagonal rod 3 and the inner side support arm 5 form a triangular bracket with a triangular stable structure, the inner side support arm 5 is provided with a ring body 8 which can be vertically moved and then positioned, the ring body 8 is connected with two telescopic diagonal support arms 9, the two diagonal support arms 9 are symmetrically arranged by taking the inner side support arm 5 as a central line, the upper end of each diagonal support arm 9 is connected with a flat tray 10, the diagonal support arms 9 are connected with arc-shaped support rods 21 which are bent downwards, the lower ends of the arc-shaped support rods 21 are abutted against the inner side support arm 5, the flat trays 10 are arranged in parallel with the support plate 6, the flat trays 10 are hinged with two anti-falling heads 11, the flat trays 10 are provided with side openings 12, the two anti-falling heads 11 are symmetrically arranged by taking the side openings 12 as the central line, the width of the side openings 12 is larger than that of the bracket cross rod 4, the horizontal position of the ring body 8 can be adjusted, and the length of the diagonal support arms 9 can be adjusted at the same time, and then the position of adjustment anticreep head 11, then will unload the piece and place between two anticreep heads 11 that are located the upper end of same oblique support arm 9, the distribution roof beam is placed in the top of unloading the piece, two anticreep heads 11 symmetry set up and fix a position the distribution roof beam of bracket horizontal pole 4 top, connect through diagonal bracing piece 13 between two anticreep heads 11, unload the piece and all can't take off with the distribution roof beam this moment, can install after whole handling, the lower extreme and the pre-buried box in bottom position of bracket down tube 3 pass through bracket spare and be connected, the inner of bracket horizontal pole 4 passes through bracket spare and is connected with high-order pre-buried box, then can place the bottom die on the redistribution roof beam.

Wherein, anticreep head 11 includes the turnover plate body 14, be provided with two spacing splint 15 on the turnover plate body 14 perpendicularly, when the turnover plate body 14 is vertical state, two spacing splint 15 all are located the top of bracket horizontal pole 4, can be so that the piece that unloads as to position between two spacing splint 15 this moment, the piece that unloads can't slide, the last side department of turnover plate body 14 is connected with the U-shaped fastener that leads to, fix a position the distribution roof beam through the U-shaped fastener, make the piece that unloads be located between distribution roof beam and the bracket horizontal pole 4 and unload the piece by distribution roof beam and the 4 centre grippings of bracket horizontal pole, increase stability.

The U-shaped fastener comprises two parallel limiting strips 16, wherein the two limiting strips 16 are vertically arranged, a thread stop lever 17 is connected between the upper ends of the two limiting strips 16, each limiting strip 16 is provided with a threaded hole 18 arranged along the length direction, the thread stop lever 17 penetrates through the threaded hole 18 and is screwed with the threaded hole 18, each limiting strip 16 is detachably connected with a turnover plate body 14, specifically, the lower end of each limiting strip 16 is fixedly provided with a base plate 19, the base plate 19 is provided with a thread through hole, an adjusting strip 20 fixed on the outer side surface of the turnover plate body 14 is arranged below the base plate 19, the base plate 19 is connected with the adjusting strip 20 through a bolt, the adjusting strip 20 is provided with round holes 21 arranged at equal intervals along the length direction, and when the limiting strips 16 are connected with the adjusting strip 20, a nut is screwed on the bolt after the bolt penetrates through the thread through hole in the base plate 19 and the round hole in the adjusting strip 20, and the distance between the two limiting strips 16 can be adjusted so as to be suitable for distribution beams of different specifications;

and the U-shaped fastener's second structural style, the U-shaped fastener is the cylinder pole and bends and form the U-shaped pole, and be provided with the external screw thread that is close to the tip on the U-shaped pole, after detaining the U-shaped pole on the distribution beam, the tip of U-shaped pole is passed by the round hole on the adjustment slat 20, then the nut is located behind the adjustment slat 20 and is twisted with the U-shaped pole and connect, in this structural style, though unable adjustment is to the suitability of distribution beam, but can make the distribution beam and unload the connection of piece and bracket horizontal pole 4 more firm.

In the construction process, each triangular bracket is connected with a pier stud 1 through an embedded box 2 by adopting two brackets, the brackets are anchored by adopting 4 PSB785 phi 32mm embedded finish rolling deformed steel bars, the triangular brackets are connected with the brackets by adopting pin shafts, and the pin shafts are made of 40CrMnTi alloy steel with the diameter of 100mm. 2I-beams 2I45a are transversely arranged at the top of each side bracket to serve as distribution beams, and bent frames formed by welding I16I-beams can be arranged on the distribution beams.

When the pier body is constructed, the embedded box and the phi 60 steel pipe are embedded, the center of the high-position embedded box is 1.452m away from the pier top, the center of the low-position embedded box is 5.272m away from the pier top, and the embedded box and the phi 60 steel pipe are embedded in the pier column 1 at positions 1.452m and 5.272m below the pier top when the pier column is poured.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The utility model provides a bracket for bridge construction which characterized in that: including fixing the pre-buried box on the side of pier stud, pre-buried box is connected with through bracket spare and props the bracket, prop the bracket and include bracket down tube and bracket horizontal pole, the upper end and the bracket horizontal pole of bracket down tube pass through the round pin hub connection, be fixed with the inboard brace that upwards extends on the bracket down tube, the upper end of inboard brace is provided with the layer board with the bottom surface contact of bracket horizontal pole, and when bracket horizontal pole and layer board contact, inboard brace sets up with the bracket horizontal pole is perpendicular, be provided with the ring body of location behind the vertical removal on the inboard brace, be connected with two telescopic oblique support arms on the ring body, two oblique support arms use inboard brace as the central line symmetry setting, the upper end of every oblique support arm all is connected with flat tray, flat tray and layer board parallel arrangement, it has two anticreeps to articulate on the flat tray, two anticreeps symmetry sets up and fixes a position the distribution roof beam above the bracket horizontal pole, connect through the split lead screw between two anticreeps.

2. The bracket for bridge construction according to claim 1, wherein: the anti-falling head comprises a turnover plate body, wherein two limiting clamp plates are vertically arranged on the turnover plate body, when the turnover plate body is in a vertical state, the two limiting clamp plates are both positioned above the transverse rod of the bracket, and the upper side of the turnover plate body is connected with a U-shaped fastener which leads to the turnover plate body.

3. The bracket for bridge construction according to claim 2, wherein: the U-shaped fastener comprises two parallel limiting strips, the two limiting strips are vertically arranged, a threaded stop lever is connected between the upper ends of the two limiting strips, and each limiting strip is detachably connected with the turning plate body.

4. The bracket for bridge construction according to claim 3, wherein: the lower end of the limiting strip plate is fixed with a base plate, a threaded through hole is formed in the base plate, an adjusting strip plate fixed on the outer side surface of the turnover plate body is arranged below the base plate, and the base plate is connected with the adjusting strip plate through a bolt.

5. The bracket for bridge construction according to claim 1, wherein: the flat tray is provided with side openings, and the two anti-falling heads are symmetrically arranged by taking the side openings as central lines.

6. The bracket for bridge construction according to claim 1, wherein: the inclined support arm is connected with an arc-shaped stay bar which bends downwards, and the lower end of the arc-shaped stay bar is propped against the inner side support arm.

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