CN217974052U - Steel box girder splicing platform - Google Patents

Abstract

The utility model relates to a steel box girder splicing platform, belonging to the technical field of steel box girder construction devices, the key point of the technical proposal is that the splicing platform comprises a support frame, the upper part of the support frame is provided with at least two slide way girders, the upper part of the slide way girders is provided with a plurality of pad girders used for supporting the steel box girders along the length direction of the slide way girders; the skid beam comprises a support section and a transition section, wherein the height of the transition section is lower than that of the support section; the pad beams comprise a support pad beam positioned at the support section and a transition pad beam positioned at the transition section; the lower part of the transition pad beam is provided with a lifting assembly for driving the transition pad beam to lift in the vertical direction; the utility model discloses remove to setting up the position back at the steel case roof beam, can convenient and fast separate with the steel case roof beam.

Description

Steel box girder splicing platform

Technical Field

The utility model relates to a steel box girder construction equipment technical field especially relates to a steel box girder construction platform.

Background

The steel box girder pushing construction method has the advantages of low construction cost, high construction speed, good construction stability, strong construction period controllability, no need of interrupting traffic under a bridge in construction and the like, and is more and more widely applied, in particular to bridges spanning busy traffic roads and shipping rivers. When the steel box girder is spliced by adopting a steel girder jacking method, a steel box girder construction platform is usually arranged to support the steel box girder, so that the steel box girder can be well spliced.

The existing steel box girder splicing platform can refer to a Chinese utility model patent document with an authorization publication number of CN206986749U, and discloses a splicing platform for large-span steel box girder construction, which comprises a plurality of support columns, wherein a platform bracket is arranged among the support columns; the upper portion of the platform support is provided with a slide way beam, the slide way beam is provided with a plurality of pin shaft holes, and the slide way beam is further provided with at least two pad beams which are used for being arranged between the steel box beam and the slide way beam.

Current steel box girder splicing platform removes to setting up the position after the steel box girder, and some pad roof beam supports the steel box girder in addition, when needs separate steel box girder splicing platform and steel box girder, need use jacking equipment with steel box girder tip jack-up, demolish the pad roof beam that supports it with steel box girder lower part, and then with steel box girder splicing platform and steel box girder separation, construction steps are loaded down with trivial details, consume the manpower.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a steel case roof beam concatenation platform removes to setting up the position back at the steel case roof beam, can convenient and fast separate with the steel case roof beam.

The above technical object of the present invention can be achieved by the following technical solutions: a steel box girder splicing platform comprises a support frame, wherein at least two slideway girders are arranged at the upper part of the support frame, and a plurality of pad girders used for supporting the steel box girder are arranged at the upper part of the slideway girders along the length direction of the slideway girders; the chute beam comprises a support section and a transition section, wherein the height of the transition section is lower than that of the support section; the pad beams comprise a supporting pad beam positioned at the supporting section and a transition pad beam positioned at the transition section; and the lower part of the transition pad beam is provided with a lifting assembly for driving the transition pad beam to lift in the vertical direction.

According to the technical scheme, in the moving process of the steel box girder, the transition pad girder is jacked through the lifting assembly, so that the transition pad girder is aligned with each support pad girder in the height direction; after moving the steel box girder to setting up the position, reduce the height that the pad roof beam was passed through, and then the convenience is filled up the roof beam and is dismantled the transition to can convenient and fast separate steel box girder splicing platform and steel box girder.

Preferably, the lower part of the transition pad beam is provided with a positioning groove used for being matched with the slideway beam.

Through the technical scheme, the transition pad beam is installed on the slide rail beam through the matching of the positioning grooves and the slide rail beam, so that the transition pad beam can be installed and positioned conveniently and quickly.

Preferably, the lifting assembly comprises a plurality of jacking hydraulic cylinders arranged at the bottom of the transition pad beam.

Through above-mentioned technical scheme, lifting unit adopts the jacking pneumatic cylinder to support the transition pad roof beam, and the jacking pneumatic cylinder can provide good stable holding power to the transition pad roof beam to can be steady support the transition to the steel case roof beam.

Preferably, the upper part of the transition pad beam is provided with a pin hole vertically penetrating through the support pad beam; the upper part of the transition section is provided with a plurality of positioning holes along the length direction, and positioning pins are inserted between the positioning holes and the pin holes.

Through above-mentioned technical scheme, through set up the locating hole on the transition district section, set up the pinhole on the transition pad roof beam, and then through the mode that locating pin and locating hole and pinhole are pegged graft, carry out relative positioning to transition pad roof beam and slide roof beam to prevent that under the effect of steel case roof beam, the transition pad roof beam takes place to slide along slide roof beam length direction.

Preferably, the support frame comprises vertically arranged upright posts and a plurality of connecting supports respectively positioned between the two upright posts, and the connecting supports are detachably connected with the upright posts.

Through above-mentioned technical scheme, the support frame comprises stand and the linking bridge that can dismantle the connection, and then when being under construction, can be according to the migration distance of steel box girder, nimble convenient whole length to the support frame is adjusted.

Preferably, the upper end of the upright post is provided with at least one pair of positioning plates for transversely positioning the slideway beam.

Through the technical scheme, the paired positioning plates are arranged on the stand column, so that the positioning plates can be used for conveniently and quickly transversely positioning the slide beam, and the slide beam is more conveniently and quickly installed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a structural schematic diagram of a steel box girder splicing platform.

Fig. 2 is a view of the splicing platform of the steel box girder along the direction A in fig. 1.

Fig. 3 is a schematic structural view showing a pillar.

Fig. 4 is a schematic structural diagram showing the connection relationship between the transition pad beam and the chute beam.

Wherein, 1, a support frame; 11. a column; 111. a cylinder; 112. connecting columns; 113. a connecting plate; 12. connecting a bracket; 2. a slideway beam; 21. a support section; 22. a transition section; 23. positioning holes; 3. supporting the bolster; 4. a transition pad beam; 41. a transition positioning groove; 42. a pin hole; 5. a jacking hydraulic cylinder; 6. positioning a plate; 7. and a positioning pin.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that, as used herein or in the following description, the terms "front," "rear," "left," "right," "upper" and "lower" refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions that face away from the geometric center of a particular component, respectively.

The embodiment is as follows:

a steel box girder splicing platform is shown in figures 1 and 2 and comprises a support frame 1, a slideway girder 2 and a pad girder. At least two slideway beams 2 are arranged on the upper portion of the supporting frame 1, and the slideway beams 2 are arranged along the splicing direction of the steel box girders. The upper portion of slide roof beam 2 is provided with a plurality of pad roof beams that are used for supporting the steel case roof beam along slide roof beam 2 length direction, and the pad roof beam spanes each slide roof beam 2, supports the steel case roof beam through filling up the roof beam, and then promotes the steel case roof beam and slides between each pad roof beam through drawing or pushing away equipment. The lifting assembly comprises a plurality of jacking hydraulic cylinders 5 arranged at the bottom of the transition pad beam 4; the piston rod of the jacking hydraulic cylinder 5 is vertically arranged.

Referring to fig. 2 and 3, the support stand 1 includes a column 11 and a connection bracket 12. The upright post 11 comprises a post body 111 and a connecting plate 113 fixed at the upper end of the post body 111; the column 111 has a connection post 112 fixed to each of three sides thereof. The connecting bracket 12 is a frame structure formed by welding a plurality of steel pipes. The connecting bracket 12 is fixed between the adjacent columns 11 by bolting. Support frame 1 is formed by the installation of stand 11 and linking bridge 12 that can dismantle the connection to can be according to the concatenation sliding distance of steel box girder, nimble carry out the concatenation equipment to support frame 1.

Referring to fig. 2 and 3, the upper end of the upright 11 is provided with at least one pair of positioning plates 6 for laterally positioning the skid beam 2. Through placing slide roof beam 2 between two locating plates 6, and then carry out horizontal positioning, simple to operate is swift to slide roof beam 2 through locating plate 6. The slideway beam 2 can be fixedly connected with the connecting plate 113 by adopting a bolt connection mode, or the slideway beam 2 can be longitudinally positioned by adopting a spot welding mode, which is not described in detail herein.

With reference to fig. 1 and 4, the ramp beam 2 comprises a support section 21 and a transition section 22, the height of the transition section 22 being lower than the height of the support section 21; the bolster comprises a support bolster 3 at a support section 21 and a transition bolster 4 at a transition section 22; the lower part of the transition pad beam 4 is provided with a lifting assembly for driving the transition pad beam 4 to lift in the vertical direction. The lower part of the transition pad beam 4 is provided with a transition positioning groove 41 matched with the slideway beam 2. The transition pad beam 4 is arranged on the slideway beam 2 through the transition positioning groove 41 at the lower part of the transition pad beam, and the installation is convenient and fast. The upper part of the transition pad beam 4 is provided with a pin hole 42 vertically penetrating through the support pad beam 3; the upper part of the transition section 22 is provided with a plurality of positioning holes 23 along the length direction, and positioning pins 7 are inserted between the positioning holes 23 and the pin holes 42. The connection between the support pad beam 3 and the support section 21 is the same as the connection between the transition pad beam 4 and the transition section 22, and will not be described herein.

The piston rod of the jacking hydraulic cylinder 5 extends, and then the jacking hydraulic cylinder 5 is utilized to jack the transition pad beam 4, so that the transition pad beam 4 is parallel and level with the support pad beam 3, and the steel box beam is supported in the moving process of the steel box beam. The transition is not easy to shift in the transverse direction during lifting through the restraint of the positioning pin 7 and the transition positioning groove 41. After moving the steel box girder to the setting position, the piston rod of the jacking hydraulic cylinder 5 contracts, and the transition pad beam 4 is lowered to the initial position, so that the steel box girder splicing platform is conveniently separated from the steel box girder.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims (6)

1. The splicing platform for the steel box girders comprises a supporting frame (1), wherein at least two slideway girders (2) are arranged at the upper part of the supporting frame (1), and a plurality of pad girders used for supporting the steel box girders are arranged at the upper parts of the slideway girders (2) along the length direction of the slideway girders (2); the method is characterized in that: the chute beam (2) comprises a support section (21) and a transition section (22), the height of the transition section (22) being lower than the height of the support section (21); the bolster comprises a support bolster (3) at a support section (21) and a transition bolster (4) at a transition section (22); and the lower part of the transition pad beam (4) is provided with a lifting assembly for driving the transition pad beam (4) to lift in the vertical direction.

2. The steel box girder splicing platform according to claim 1, wherein: and the lower part of the transition pad beam (4) is provided with a transition positioning groove (41) matched with the slide way beam (2).

3. The steel box girder splicing platform according to claim 1, wherein: the lifting assembly comprises a plurality of jacking hydraulic cylinders (5) arranged at the bottom of the transition pad beam (4); and a piston rod of the jacking hydraulic cylinder (5) is vertically arranged.

4. The steel box girder splicing platform according to claim 1, wherein: the upper part of the transition pad beam (4) is provided with a pin hole (42) which vertically penetrates through the support pad beam (3); a plurality of positioning holes (23) are formed in the upper portion of the transition section (22) along the length direction of the transition section, and positioning pins (7) are inserted between the positioning holes (23) and the pin holes (42).

5. The steel box girder splicing platform according to claim 1, wherein: the support frame (1) comprises upright columns (11) which are vertically arranged and a plurality of connecting supports (12) which are respectively positioned between the two upright columns (11), wherein the connecting supports (12) are detachably connected with the upright columns (11).

6. The steel box girder splicing platform according to claim 5, wherein: the upper end of the upright post (11) is provided with at least one pair of positioning plates (6) for transversely positioning the slideway beam (2).

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