CN202849948U - Locating device for corrugated steel web - Google Patents

Abstract

The utility model provides a positioning device for a corrugated steel web, comprising: two linear and parallel supporting parts; between the two supporting parts, two turnbuckle screws forming a cross shape are connected; each Both ends of the turnbuckle screw are respectively connected to one end of a supporting component. The end of the support component is fixedly connected to the gusset plate, the end of the turnbuckle screw clamps the U-shaped plate, and the U-shaped plate is connected to the gusset plate through bolts. The bottom of the U-shaped plate has a hole, and the end of the turnbuckle screw has a clamping platform; the turnbuckle screw passes through the hole of the U-shaped plate, and is clamped with the hole by the clamping platform. The positioning device in this embodiment has a simple structure, is easy to operate, can be used repeatedly, and improves the positioning and installation efficiency of the corrugated steel web.

Description

Positioning device for corrugated steel web

technical field

The utility model relates to the field of prestressed composite box girders with corrugated steel webs, in particular to a positioning device for corrugated steel webs.

Background technique

The corrugated steel web prestressed composite box girder is a steel-concrete composite box girder structure composed of concrete roof and floor, external prestressed tendons and corrugated steel webs. Since corrugated steel webs are used instead of concrete webs, compared with traditional prestressed concrete box girders, the structural weight can be reduced by 20% to 30%. Therefore, the use of this type of structure can save construction costs, especially for long-span corrugated steel Web continuous girders and continuous rigid frame bridges have more prominent economic advantages, and the comprehensive cost can be reduced by 8% to 12% compared with ordinary prestressed concrete box girder bridges.

The installation and positioning accuracy of the corrugated steel web affects the alignment of the bridge, the distribution of internal forces and the performance of the shear connection key. The existing corrugated steel web positioning device mainly adopts large-scale steel or scaffolding, which has complex structure, cumbersome operation, labor-intensive and material-intensive, which is not conducive to rapid turnover and use on the construction site.

Contents of the invention

In view of this, the utility model is to provide a corrugated steel web positioning device to solve the above-mentioned problem of using large steel or scaffolding as the corrugated steel web positioning device and having a complex structure.

In order to solve the above problems, the utility model provides a positioning device for corrugated steel webs, including: two linear and parallel supporting parts;

Between the two support components, two turnbuckle screws forming a cross shape are connected; both ends of each turnbuckle screw are respectively connected to one end of a support component.

Preferably, the connection between the end of each turnbuckle screw and the end of each support member includes:

The end of the support member is fixedly connected to the gusset plate;

The end of the turnbuckle screw clamps a U-shaped plate, and the U-shaped plate is connected to the gusset plate through bolts.

Preferably, the bottom of the U-shaped plate has a hole, and the end of the turnbuckle screw has a clamping platform;

The turnbuckle screw passes through the hole of the U-shaped plate, and is clamped with the hole by the clamping platform.

Preferably, the gusset plate is within the opening of the U-shaped plate.

Preferably, the support member is channel steel, round steel, steel plate or steel pipe.

The positioning device in the embodiment has a simple structure, is easy to operate, can be used repeatedly, and improves the positioning and installation efficiency of the corrugated steel web.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

Fig. 1 is a structural diagram of a positioning device in an embodiment;

Fig. 2 is a partial schematic view of the connection between the turnbuckle screw and the support member in the embodiment;

Fig. 3 is a structural view of the positioning device fixing the corrugated steel web in the embodiment.

Detailed ways

In order to clearly illustrate the technical solutions in the utility model, preferred embodiments are given below and detailed descriptions are given in conjunction with the accompanying drawings.

Referring to Fig. 1, the positioning device of the corrugated steel web in Fig. 1 includes: two linear and parallel supporting parts 11 and 12;

Between the two supporting components 11, 12, two turnbuckle screws 13, 14 forming a cross-shaped intersection are connected; both ends of each turnbuckle screw are respectively connected to one end of a supporting component. For example, one end of the turnbuckle 13 in FIG. 1 is connected to the left end of the support component 11 , and the other end is connected to the right end of the support component 12 .

The positioning device in the embodiment has a simple structure, is easy to operate, can be used repeatedly, and improves the positioning and installation efficiency of the corrugated steel web.

Preferably, the connection between the end of each turnbuckle screw and the end of each support member includes:

The end of the support member is fixedly connected to the gusset plate;

The two turntable screws and the two support components have a total of eight connected ends, which are connected through four gusset plates. For example: the right end of the support member 11 in FIG. 1 is fixedly connected to the gusset plate 21 through bolts 31 .

The end of the turnbuckle screw clamps a U-shaped plate, and the U-shaped plate is connected to the gusset plate through bolts. For example: one end of the turnbuckle 14 in FIG. 1 is connected to the gusset plate 21 through a U-shaped plate. The remaining support members and each end of the turnbuckle are connected in the same manner.

Referring to FIG. 2 , the structural view of the clamping between the end of the turnbuckle screw and the U-shaped plate is shown in FIG. 2 , the bottom of the U-shaped plate has a hole 41 , and the end of the turnbuckle screw has a clamping platform 132 ;

The turnbuckle screw passes through the hole 41 of the U-shaped plate, and is locked with the hole 41 by the clamping platform 132 .

A gusset plate is within the opening of the U-shaped plate. For example: the gusset plate 21 located in the opening of the U-shaped plate in FIG. 2 , the U-shaped plate and the gusset plate at various positions in FIG. 1 are connected in the same manner.

Preferably, the support members 11, 12 are channel steel, round steel, steel plate or steel pipe.

Referring to Fig. 3, in the process of using the device of the embodiment, the four gusset plates of the positioning device are pre-welded on the corrugated steel webs on both sides, and each corrugated steel web is welded with two gusset plates. After placing and positioning the inner and outer corrugated steel webs of the prestressed composite box girder with corrugated steel webs, connect two support components and two turnbuckle screws through gusset plates. Among them, the distance between two gusset plates is equal to the clear distance between two corrugated steel webs. After the installation is completed, no matter whether the corrugated steel web has a tendency to deform inwardly or outwardly, the deformation can be restricted by the shear resistance of the connected supporting parts 11, 12 and the bolts of the gusset plate, so as to ensure the positioning accuracy of the corrugated steel web and overall stability.

The installation steps of the positioning device of the present utility model are as follows:

1. After the inner and outer corrugated steel webs of the corrugated steel web prestressed composite box girder are hoisted in place, the positioning adjustment device can be installed.

2. Use an electric hoist to place the supporting parts 11 and 12 at the gusset plate between the two corrugated steel webs, and connect them with bolts. For example, bolt 31 in FIG. 1 .

3. Use an electric hoist to place the two paired turnbuckle screws 13 and 14 crosswise at the gusset plate between the two corrugated steel webs, and connect the gusset plate and the turnbuckle screw through a U-shaped plate and bolts.

4. Finally, fine-tuning and precise positioning of the corrugated steel web are completed by adjusting the turnbuckle screw. Referring to the length adjusting parts 131 and 141 on the turnbuckle screw in FIG. 1 , the length of the turnbuckle screw can be adjusted to a predetermined size through the adjusting parts.

The positioning adjustment device can be used after the corrugated steel web to be positioned is hoisted, and the positioning device can be removed after the concrete pouring of the segment to be constructed is completed for use in the next segment.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (5)

1. A positioning device for a corrugated steel web, comprising: two linear and parallel support components; Between the two support components, two turnbuckle screws forming a cross shape are connected; two ends of each turnbuckle screw are respectively connected to one end of a support component. 2. The positioning device according to claim 1, wherein the connection between the end of each turnbuckle screw and the end of each support member comprises: The end of the support member is fixedly connected to the gusset plate; The end of the turnbuckle screw clamps a U-shaped plate, and the U-shaped plate is connected to the gusset plate through bolts. 3. The positioning device according to claim 2, wherein the bottom of the U-shaped plate has a hole, and the end of the turnbuckle screw has a clamping platform; The turnbuckle screw passes through the hole of the U-shaped plate, and is clamped with the hole by the clamping platform. 4. The positioning device according to claim 2, wherein the gusset plate is inside the opening of the U-shaped plate. 5. The positioning device according to claim 1, wherein the supporting member is a channel steel, a round steel, a steel plate or a steel pipe.

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