CN211973126U

CN211973126U - Main beam erecting support

Info

Publication number: CN211973126U
Application number: CN201922426761.4U
Authority: CN
Inventors: 吴建峰; 夏江南; 李鸿文; 路宏; 喻丽; 杨杰; 张涛; 刘杰; 赵胜; 唐代新; 韩春鹏; 陈勇丰; 陶坡
Original assignee: Road and Bridge International Co Ltd; Road and Bridge South China Engineering Co Ltd
Current assignee: Road and Bridge International Co Ltd; Road and Bridge South China Engineering Co Ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-11-20
Anticipated expiration: 2029-12-26

Abstract

The utility model relates to a bridge construction field especially relates to a girder erects support, the girder includes the steel crossbeam of a plurality of horizontal bridge to concatenation, girder erects support including setting up separately in every the steel crossbeam below, every the support group is including laying in the central sub-support of steel crossbeam middle section, and lay in the lateral sub-support of two terminal sections of steel crossbeam, wherein, the lateral width of central sub-support is greater than the lateral width of lateral sub-support; the top surface of the central sub-bracket is provided with two leveling devices and two frame falling devices; the top surface of the side sub-bracket is provided with a leveling device and a frame falling device. The utility model discloses guaranteed steel beam's accurate positioning and stability, made steel beam can be accurate, install to predetermineeing the position steadily.

Description

Main beam erecting support

[ technical field ] A method for producing a semiconductor device

The utility model relates to a bridge construction field especially relates to a support is erect to girder.

[ background of the invention ]

In the bridge construction process, a support is usually erected firstly for supporting a main beam, then a steel structure of the main beam is erected, and then concrete is poured, wherein the main beam can be a steel beam or a concrete beam.

However, since the structural form of the bridge, the topographic conditions of bridge construction, and the like are different, the manner of erecting the main beam is also different. When assembling the steel beam in sections, generally hoist the steel beam to the preset position with the tower crane first, then fold the steel beam and the beam section that has installed counterpoint, nevertheless hoist or fold the in-process, often can erect the stability and the location ability of support because of the girder relatively poor, lead to the steel beam can't accurately, install to the preset position steadily.

[ Utility model ] content

The utility model aims at providing a support is erect to girder to solve the steel crossbeam and hoist or fold the in-process, because of the stability and the location ability that current girder erect the support are relatively poor, lead to the unable accurate of steel crossbeam, install to the problem of predetermineeing the position steadily.

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

the utility model provides a girder erection support, the girder comprises a plurality of steel beams spliced in the transverse bridge direction, the girder erection support comprises support groups respectively arranged below each steel beam, each support group comprises a central sub-support arranged in the middle section of the steel beam and side sub-supports arranged at the two end sections of the steel beam, wherein the transverse width of the central sub-support is greater than that of the side sub-supports; the top surface of the central sub-bracket is provided with two leveling devices and two frame falling devices; the top surface of the side sub-bracket is provided with a leveling device and a frame falling device.

Optionally, the side sub-frame bordering on the side arch rib is drawn close to the central sub-frame, wherein the side arch rib is arranged below the side span of the main beam and used for supporting the side span.

Optionally, the set of brackets located below the side arch rib is provided with only the central sub-bracket.

Optionally, the two leveling devices located in the central sub-bracket are respectively disposed at two sides of the central sub-bracket, the two shelf devices located in the central sub-bracket are disposed between the two leveling devices, and any shelf device is disposed at the center of the central sub-bracket.

Optionally, the falling device located on the side sub-bracket is located at the center of the side sub-bracket, and the leveling device located on the side sub-bracket is closer to the inner side of the side sub-bracket than the falling device.

Optionally, the levelling means comprises a jack and the racking device comprises a sand drum.

Furthermore, the central sub-bracket and the side sub-brackets respectively comprise at least two bracket upright posts, a parallel connection, a cross brace and a supporting platform; the support stand column is fixed on a foundation, the parallel connection transverse connection is formed by two adjacent support stand columns, four ends of the cross brace are respectively connected to two ends of the parallel connection and the top of the support stand column, the supporting platform is horizontally fixed on the top end of the support stand column, and the leveling device and the frame falling device are located on the top surface of the supporting platform.

Optionally, the bracket upright is fixed to the foundation through a bracket embedded part.

Furthermore, the support embedded part comprises an anchor plate and a bolt, the bottom of the support upright post is fixedly connected with the anchor plate, and the anchor plate is fixed on the foundation through the bolt.

Furthermore, the support embedded part also comprises a reinforcing plate, and the joint of the bottom of the support upright post and the anchor plate is reinforced through the reinforcing plate.

Compared with the prior art, the utility model discloses possess following advantage:

1. the utility model provides a girder erects support, including the support group of establishing respectively below the steel crossbeam of every girder, every support group is including laying in the central sub-support in steel crossbeam middle section to and lay in the avris sub-support of two terminal sections of steel crossbeam, wherein, the horizontal width of central sub-support is greater than the horizontal width of avris sub-support, in order to carry out effective support to steel crossbeam middle section and both ends respectively through central sub-support and avris sub-support, and increase the horizontal support width to steel crossbeam middle section, thereby improve girder erects the support stability of support to steel crossbeam of support; in addition, the top surface of central authorities' sub-support is equipped with two levelling device and two and falls a device, the top surface of limit side sub-support is equipped with a levelling device and a device that falls to adjust the mounted position of the steel crossbeam that supports through levelling device and the device that falls, thereby guarantee the accurate positioning of steel crossbeam, make steel crossbeam can be accurate, install to predetermineeing the position steadily.

2. The utility model provides a support is erect to girder, with the avris sub-carrier that limit arch rib borders on to central authorities' sub-carrier draws close to improve the support of the steel crossbeam middle part position of opposite side arch rib department, thereby guarantee the steadiness of the steel crossbeam of limit arch rib department, and ensure the safety of limit arch rib, build steadily.

3. The utility model provides a support is erect to girder is located the support group of limit arch rib below only is equipped with the sub-support of central authorities to when guaranteeing that the girder erects the support stability of support, reduce the use of support, resources are saved.

4. The utility model provides a support is erect to girder, is located the both sides that the sub-support of central authorities was located respectively to two levelling devices of sub-support of central authorities, is located the sub-support of central authorities two device of falling put down locate between two levelling devices, and arbitrary one device of falling put down the central point that locates the sub-support of central authorities and put to adjust the middle part position to steel crossbeam, further ensure that steel crossbeam can be accurate, install to predetermineeing the position steadily.

5. The utility model provides a support is erect to girder, the central point that limit side sub-support was located to the device that falls that is located the avris sub-support puts, and is located the avris sub-support levelling device is closer than the device that falls the inboard of avris sub-support realizes the accurate positioning to steel beam both sides position to improve steel beam overall structure's stability.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

[ description of the drawings ]

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a main beam erecting support according to an embodiment of the present invention, and for convenience of description, a steel beam of a main beam is also shown;

fig. 2 is a schematic view illustrating an installation position of a main beam erecting bracket according to an embodiment of the present invention;

fig. 3 is a front view of a bracket embedded part according to an embodiment of the present invention, and a bracket upright is also shown for convenience of illustration;

FIG. 4 is a top view of the bracket embedment provided in FIG. 3, with bracket posts shown for ease of illustration.

[ detailed description ] embodiments

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

As shown in figure 1, the utility model provides a support is erect to girder for effective support to the bridge girder, in order to guarantee girder safety, build steadily. Wherein, the girder includes a plurality of horizontal bridge to the steel crossbeam 1 of concatenation, the girder erects the support and includes a plurality of support group 2, every the below of steel crossbeam 1 all is provided with a support group 2, every support group 2 includes avris sub-bracket 21 and central authorities 'sub-bracket 22, and this central authorities' sub-bracket 22 is laid the middle section position of steel crossbeam 1 for the support to the middle section position of steel crossbeam 1. The side sub-brackets 21 are arranged at two end sections of the steel beam 1 and used for supporting the two transverse ends of the steel beam 1. Optionally, the lateral width of the central sub-bracket 22 is greater than the lateral width of the lateral sub-bracket 21, so that the central sub-bracket 22 and the lateral sub-bracket 21 effectively support the middle section and the two ends of the steel beam 1 respectively, the lateral support width of the middle section of the steel beam 1 is increased, and the support stability of the girder erection support on the steel beam 1 is improved.

In addition, the top surface of the side sub-bracket 21 is provided with a leveling device and a frame falling device, the top surface of the central sub-bracket 22 is provided with two leveling devices 221 and two frame falling devices 222, and the specific placement positions of the two leveling devices 221 and the two frame falling devices 222 on the top surface can be set according to the actual supporting condition of the steel beam 1. The utility model discloses a levelling device 221 and device 222 that falls realize carrying out the accurate adjustment to the mounted position of the steel crossbeam 1 that supports to guarantee the accurate positioning of steel crossbeam 1, make steel crossbeam 1 can be accurate, install to predetermineeing the position steadily.

Optionally, the leveling device 221 includes a three-way jack, and the falling device 222 includes a sand cylinder for adjusting the elevation of the steel beam 1.

Optionally, as shown in fig. 2, the side sub-brackets 21 bordering the side arch rib 3 are close to the central sub-bracket 22 to improve the support of the middle position of the steel beam 1 at the side arch rib 3, so as to ensure the stability of the steel beam 1 at the side arch rib 3 and ensure the safe and stable construction of the side arch rib 3. Wherein, the side arch rib 3 is arranged below the side span of the main beam and used for supporting the side span. Specifically, several support columns of the side sub-supports 21 can be additionally built at positions close to the central sub-support 22, so as to strengthen the support of the middle position of the steel beam 1. In addition, the side sub-brackets 21 can be translated towards the central sub-bracket 22, and the central sub-bracket 22 is assisted to strengthen the support of the middle position of the steel beam 1.

Optionally, as shown in fig. 2, the side arch rib 3 may be used to support the steel beam 1 at the side span, so that the support group 2 located below the side arch rib 3 is only provided with the central sub-support 22, and the support of the steel beam 1 can be completed only through the central sub-support 22, so as to ensure the support stability of the main beam erection support, reduce the use of the support, and save resources.

Further, with continued reference to fig. 1, the central sub-frame 22 includes at least two frame posts 223, parallel links 224, cross braces 225 and support platforms 226, and the side sub-frame 21 also includes at least two frame posts 223, parallel links 224, cross braces 225 and support platforms 226. Wherein, the support column 223 is the main supporting structure of the central sub-support 22 or the side sub-support 21, and the bottom end thereof is fixed on the foundation to ensure the stability of the support column 223. Every two support columns 223 form a group, a phi 273 x 6.5mm steel pipe parallel connection 224 and a 20a channel steel bridging 225 are arranged between each group of support columns 223, namely, the parallel connection 224 is transversely connected to the lower sections of the two adjacent support columns 223, four ends of the bridging 225 are respectively connected to two ends of the parallel connection 224 and the tops of the two support columns 223, the supporting platform 226 is horizontally fixed to the top ends of the support columns 223, and the leveling device 221 and the frame falling device 222 are located on the top surface of the supporting platform 226. The supporting platform 226 may be an i-steel, and the stand column 223 may be a steel pipe with a diameter of 426 × 6.5 mm.

Optionally, the mounting verticality of the support column 223 is less than or equal to H/500 and not greater than 5 cm. I.e. the maximum deviation of the perpendicularity cannot exceed 5cm and at the same time cannot exceed one fifth of the height between the steel beam 1 and the foundation. For example, when the height between the steel beam 1 and the foundation is 30m, one fifth of 30m is 6cm, and the height error between the support column 223 and the steel beam 1 needs to be limited within 5cm, otherwise, the operation specification is exceeded. If the height between the steel beam 1 and the foundation is 20m, one fifth hundredth of 20m is 4cm, and 4cm is less than 5cm, so that the operation specification is met, and the installation height of the support upright 223 is strictly controlled to ensure that the support upright 223 effectively supports the steel beam 1.

Optionally, the two leveling devices 221 and the two falling device 222 located on the central sub-bracket 22 are disposed on the top surface of the supporting platform 226, and are all on the same straight line, the two leveling devices 221 located on the central sub-bracket 22 are respectively disposed on two sides of the supporting platform 226 of the central sub-bracket 22, the two falling device 222 located on the central sub-bracket 22 is disposed between the two leveling devices 221, and any one falling device 222 is disposed in the central position of the central sub-bracket 22, that is, opposite to the crossing position of the cross brace 225, so that under the cooperation of the two leveling devices 221 and the two falling devices 222, the adjustment of the middle position of the steel beam 1 is achieved, and it is further ensured that the steel beam 1 can be accurately and stably mounted to the preset position.

Optionally, the frame-falling device 222 located on the side sub-frame 21 is arranged at the center of the side sub-frame 21, i.e. opposite to the crossing position of the cross brace 225. The leveling device 221 is closer to the inner side of the side sub-bracket 21 than the falling device 222, namely the side sub-bracket 21, the leveling device 221 is closer to the central sub-bracket 22 than the falling device 222, so that the positions of two sides of the steel beam 1 can be adjusted and positioned under the matching of the leveling device 221 and the falling device 222 of the side sub-bracket 21, and the stability of the whole structure of the steel beam 1 is improved.

Optionally, referring to fig. 1 in combination with fig. 3 and 4, the bottom ends of the support uprights 223 are fixed to the foundation through support embedded parts 227, each support embedded part 227 includes an anchor plate 2271 and bolts 2272, the bottom of each support upright 223 is fixedly connected to the anchor plate 2271, the anchor plates 2271 are fixed to the foundation through four bolts 2272, and each bolt 2272 is respectively disposed near four corners of the anchor plate 2271, so that the four bolts 2272 enclose a rectangular shape. The bolt 2272 may be an M20 × 280 expansion bolt 2272 for fixing the anchor plate 2271 to the concrete foundation.

Further, the bracket embedded part 227 further comprises a reinforcing plate 2273, and the joint of the bottom of the bracket upright column 223 and the anchor plate 2271 is reinforced by the reinforcing plate 2273. Specifically, the reinforcing plate 2273 is a right-angled triangle structure, and two right-angled sides thereof are respectively welded with the bracket upright column 223 and the anchor plate 2271, so as to reinforce the fixed connection between the bracket upright column 223 and the anchor plate 2271.

To sum up, the utility model provides a girder erection support, including the support group 2 that sets up below the steel crossbeam 1 of each girder respectively, each support group 2 is including laying in the central sub-support 22 of steel crossbeam 1 middle section to and lay in the lateral sub-support 21 of steel crossbeam 1 two terminal sections, wherein, the transverse width of central sub-support 22 is greater than the transverse width of lateral sub-support 21, in order to carry out effective support to steel crossbeam 1 middle section and both ends respectively through central sub-support 22 and lateral sub-support 21, and increase the transverse support width to steel crossbeam 1 middle section, thereby improve girder erection support to the support stability of steel crossbeam 1; in addition, the top surface of the central sub-bracket 22 is provided with two leveling devices 221 and two falling device 222, the top surface of the side sub-bracket 21 is provided with one leveling device 221 and one falling device 222, so that the mounting position of the supported steel beam 1 can be adjusted through the leveling devices 221 and the falling devices 222, thereby ensuring the accurate positioning of the steel beam 1 and enabling the steel beam 1 to be accurately and stably mounted to a preset position.

Although a few exemplary embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these exemplary embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.

Claims

1. A main beam erection support comprises a plurality of steel cross beams spliced in the transverse bridge direction, and is characterized by comprising support groups arranged below each steel cross beam, wherein each support group comprises a central sub-support arranged in the middle section of the steel cross beam and side sub-supports arranged at the two tail sections of the steel cross beam, and the transverse width of the central sub-support is greater than that of the side sub-supports; the top surface of the central sub-bracket is provided with two leveling devices and two frame falling devices; the top surface of the side sub-bracket is provided with a leveling device and a frame falling device.

2. The main girder erection support of claim 1, wherein the side sub-supports bordering the side ribs are drawn together towards the central sub-support, wherein the side ribs are provided below the side span of the main girder for supporting the side span.

3. The main girder erection support of claim 2, wherein the support group located under the side arch rib is provided with only the central sub-support.

4. The main girder erection support of claim 1, wherein the two leveling devices of the central sub-support are respectively disposed at two sides of the central sub-support, the two frame falling devices of the central sub-support are disposed between the two leveling devices, and any one frame falling device is disposed at a central position of the central sub-support.

5. The main girder erection support of claim 1, wherein the falling device located at the side sub-support is located at a central position of the side sub-support, and the leveling device located at the side sub-support is closer to an inner side of the side sub-support than the falling device.

6. The main girder erection support of claim 1, wherein the leveling device comprises a jack and the racking device comprises a sand cylinder.

7. The main girder erection support of claim 1, wherein the central sub-support and the lateral sub-supports each comprise at least two support posts, a parallel link, a cross brace and a support platform; the support stand column is fixed on a foundation, the parallel connection transverse connection is formed by two adjacent support stand columns, four ends of the cross brace are respectively connected to two ends of the parallel connection and the top of the support stand column, the supporting platform is horizontally fixed on the top end of the support stand column, and the leveling device and the frame falling device are located on the top surface of the supporting platform.

8. The main beam erecting support according to claim 7, wherein said support uprights are secured to the foundation by means of support embedments.

9. The main beam erecting support according to claim 8, wherein the embedded part of the support comprises an anchor plate and a bolt, the bottom of the upright post of the support is fixedly connected with the anchor plate, and the anchor plate is fixed on a foundation through the bolt.

10. The main girder erection support of claim 9, wherein the support embedment further comprises a reinforcing plate, and a joint of the bottom of the support upright and the anchor plate is reinforced by the reinforcing plate.