CN215629404U - Steel case roof beam mobile location rack - Google Patents

Abstract

The utility model relates to the field of buildings, in particular to a movable positioning rack for a steel box girder. The positioning rack comprises a positioning device, the positioning device comprises a limiting column (1), the limiting column (1) is welded on the base connecting steel plate (5), and the side edge of the limiting column (1) and the base connecting steel plate (5) are fixedly connected with the first bolt (2) through a connecting angle iron (3); the base connecting steel plate (5) is fixedly connected with the cross beam (6) of the I-shaped steel pedestal through a second bolt (4) in a perforation way. Has the advantages that: when the steel box girders of the small-curve-radius bridge are hoisted and connected, the occupied area of an assembling field is reduced, the hoisting accurate assembling time is shortened, and the assembling quality and the working efficiency are improved.

Description

Steel case roof beam mobile location rack

Technical Field

The utility model relates to the field of buildings, in particular to a movable positioning rack for a steel box girder.

Background

In the construction of on-spot spelling of little curve radius coincide steel box girder, conventional construction process, because of little curve radius coincide steel box girder line type is changeable, after the location is assembled to different line types, all will rearrange and assemble the rack, it is great to assemble the area, and assemble the roof beam process of falling, need assemble the line type through total powerstation dynamic monitoring, adjust the position that finally falls the roof beam, this process is because the steel box girder assembles the required height of precision, can receive unfavorable factors influences such as operating personnel, place, weather, the spelling time of extension hoist and mount process. The problems of long time consumption and more labor consumption in hoisting, assembling and positioning often cause low assembling efficiency of the small-curve-radius superposed steel box girder.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is that: in order to provide a better moving and positioning rack for a steel box girder, the concrete purpose is to see a plurality of substantial technical effects of the concrete implementation part.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a steel box girder moving and positioning rack is characterized in that the positioning rack comprises a positioning device, the positioning device comprises a limiting column 1, the limiting column 1 is welded on a base connecting steel plate 5, and the side edge of the limiting column 1 and the base connecting steel plate 5 are fixedly connected with a first bolt 2 through a connecting angle iron 3; the base connecting steel plate 5 and the I-shaped steel pedestal cross beam 6 are fixedly connected through a bolt II 4 through a through hole.

The utility model further adopts the technical scheme that the limiting column 1 is formed by filling C20 concrete into a steel pipe with the diameter of 110mm, the base connecting steel plate 5 is a Q345 steel plate with the thickness of 20mm, the I-steel pedestal cross beam 6 is made of I-steel, the connecting angle iron 3 is L4 angle iron, and the bolt I2 and the bolt II 4 are M16 bolts.

Compared with the prior art, the utility model adopting the technical scheme has the following beneficial effects: when the steel box girders of the small-curve-radius bridge are hoisted and connected, the occupied area of an assembling field is reduced, the hoisting accurate assembling time is shortened, and the assembling quality and the working efficiency are improved.

Drawings

To further illustrate the present invention, further description is provided below with reference to the accompanying drawings:

FIG. 1 is a plan view of the present patent;

FIG. 2 is a longitudinal sectional layout view of the fabricated gantry;

FIG. 3 is a plan view of the assembled gantry;

FIG. 4 is a perspective view of the support portion;

FIG. 5 is a schematic view of a first perspective of the support portion;

FIG. 6 is a schematic view of the support portion from a second perspective;

FIG. 7 is a schematic cross-sectional view of the patent;

wherein: 1. a limiting column; 2. a first bolt; 3. connecting angle iron; 4. a second bolt; 5. the base is connected with a steel plate; 6. i-steel pedestal crossbeam.

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the utility model and not as limiting the scope of the utility model. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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.

The patent provides a plurality of parallel schemes, and different expressions belong to an improved scheme based on a basic scheme or a parallel scheme. Each solution has its own unique features. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. The fixing means, which is not described herein, may be any one of screw fixing, bolt fixing, or glue bonding.

The first embodiment is as follows: with reference to all of the accompanying drawings; a steel box girder moving and positioning rack is characterized in that the positioning rack comprises a positioning device, the positioning device comprises a limiting column 1, the limiting column 1 is welded on a base connecting steel plate 5, and the side edge of the limiting column 1 and the base connecting steel plate 5 are fixedly connected with a first bolt 2 through a connecting angle iron 3; the base connecting steel plate 5 and the I-shaped steel pedestal cross beam 6 are fixedly connected through a bolt II 4 through a through hole. The technical scheme of the utility model has the following substantial technical effects and the realization process: taking the on-site section assembling construction of a certain project of the small curve radius bridge superposed steel box girder as an example, the project of the composite steel box girder has the length of 30 meters and is assembled by 3 sections. Before the box girder enters a field, a pre-assembled area is made to be flat, the movable positioning rack is placed according to the curve line type of the pre-assembled steel box girder and the lofting coordinate on the field, the inner side of the limiting column and the outer side of a box chamber at the bottom of the steel box girder are kept on the same curve, the movable racks are arranged in sequence, the rechecking of the coordinate and the elevation is completed, and the next step of steel box girder subsection hoisting assembly can be carried out after no fault occurs. After the steel box girder enters the field in sections, the steel box girder is hoisted by a crawler crane and falls on a previously prepared movable rack, and two movable racks are arranged at the bottom of one section of the box girder and are used as platforms for adjusting and positioning the linearity and elevation of the steel box girder.

Spacing post is in the mechanical jack outside, when the beam is fallen in the gentle removal of festival section steel box girder, when the box room of box girder bottom is close spacing post, crane driver and hoist and mount adjustment workman, slowly adjust falling angle and falling speed of beam slab, make beam slab box room bottom hug closely spacing post and slowly fall on roof beam to 20T mechanical jack, the other installation pair of splicing of jack leans on the channel-section steel as the dropout prevention means of jack, the first section of stage is assembled and is accomplished the back, accomplish the assembly of interlude and tail section in proper order, by the jack according to design arch degree fine setting longitudinal elevation in advance, accomplish arching and high strength bolt and twist eventually, the assembly work of one section coincide steel box girder is accomplished.

The positioning of the limiting columns ensures that the steel box girder is linearly, accurately and quickly positioned on site, saves the site, accelerates the sectional assembling and splicing speed of the superposed steel box girder, and improves the working efficiency.

Generally speaking, this patent preparation, easy operation can fix a position, install segmentation steel box girder fast, is a simple and practical's mobile station frame.

Example two: as a further improved scheme or a parallel scheme or a selectable independent scheme, the limiting column 1 is formed by pouring C20 concrete into a steel pipe with the diameter of 110mm, a base connecting steel plate 5 is a Q345 steel plate with the thickness of 20mm, an I-steel pedestal cross beam 6 is made of I-steel, a connecting angle iron 3 is an L4 angle iron, and a bolt I2 and a bolt II 4 are M16 bolts. The technical scheme of the utility model has the following substantial technical effects and the realization process: the present embodiment provides specific dimensions and configurations, and similar implementation dimensions are within the scope of this patent.

A steel pipe with the diameter of 110mm and the height of about 1M is adopted, C20 concrete is poured in to increase the supporting force of the steel pipe, the steel pipe serves as a limiting column, the limiting column is welded on a base connecting steel plate with the thickness of 20mm, and an L4 angle iron connecting rod is fixedly connected with an M16 common bolt. The limiting column base connecting steel plate and the rack beam three-piece I36I-shaped steel are fixedly connected through the M16 bolt through a through hole, the connection quality of the overlapped steel box beam sectional hoisting assembly is guaranteed through the limiting column, and time is saved. The limiting columns are welded on the base connecting steel plates, the base connecting steel plates are tied with the pedestal cross beams, and angle iron is used for reinforcing connection. The limiting column is made of C20 concrete poured into a phi 110mm steel pipe, the base connecting steel plate is made of a Q345 steel plate with the thickness of 20mm, the pedestal cross beam is made of three-spliced I36I-shaped steel, the reinforcing connection is made of L4 angle iron, and the connecting bolt is an M16 bolt. The limiting column is tied with the pedestal cross beam through a base connecting steel plate and is reinforced by tying the periphery of angle iron.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, and the utility model is to be limited to the embodiments described above.

Claims (2)

1. The movable positioning rack for the steel box girder is characterized in that the positioning rack comprises a positioning device, the positioning device comprises a limiting column (1), the limiting column (1) is welded on a base connecting steel plate (5), and the side edge of the limiting column (1) and the base connecting steel plate (5) are fixedly connected with a first bolt (2) through a connecting angle iron (3); the base connecting steel plate (5) is fixedly connected with the cross beam (6) of the I-shaped steel pedestal through a second bolt (4) in a perforation way.

2. The steel box girder moving and positioning rack of claim 1, wherein the limiting column (1) is formed by filling C20 concrete into a steel pipe with the diameter of 110mm, the base connecting steel plate (5) is a Q345 steel plate with the thickness of 20mm, the cross beam (6) of the I-steel pedestal is made of I-steel, the connecting angle iron (3) is L4 angle iron, and the first bolt (2) and the second bolt (4) are M16 bolts.

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