CN218757017U

CN218757017U - Movable bridge deck correction platform

Info

Publication number: CN218757017U
Application number: CN202222934883.6U
Authority: CN
Inventors: 郑学磊; 邱豪侠; 贾为智; 董夫印; 赵国会
Original assignee: Shanghai Urban Construction Municipal Engineering Group Co Ltd
Current assignee: Shanghai Urban Construction Municipal Engineering Group Co Ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-03-28
Anticipated expiration: 2032-11-04

Abstract

The utility model discloses a mobile bridge deck correction platform, which comprises a bottom moving device and a top height adjusting device, wherein the bottom moving device comprises a bottom steel frame, longitudinal support legs and universal wheels, two ends of the bottom steel frame are respectively provided with two longitudinal support legs, and each longitudinal support leg is provided with one universal wheel; the top height adjusting device comprises a top hanging bracket and jacks, lifting lugs are respectively installed at two ends of the bottom of the top hanging bracket, two jacks are respectively arranged at two ends of the top of the bottom steel frame, two ends of the bottom of the top hanging bracket are respectively connected with the top ends of the two jacks, and the jacks drive the top hanging bracket to perform lifting motion. The utility model has the advantages that: the operation is simple, the labor required by the plate adjusting construction is less, and the matched construction is relatively easy; the manufacturing cost is low, and the cost of pouring asphalt over-square caused by integral slope adjustment is greatly reduced; the problems of subsequent reflection cracks and the like caused by overlarge height difference between the bridge panels are avoided, and the potential safety hazard of the structure and the subsequent repair cost are reduced.

Description

Movable bridge deck correction platform

Technical Field

The utility model belongs to the technical field of bridge engineering's technique and specifically relates to a platform is rectified to portable decking.

Background

Because the degree of pre-arching of design bridge all loads that the superstructure was united to the design is all applyed the degree of pre-arching that targets in place, but actual construction operating mode can't reach so idealization's state, and the deck slab prefabrication also has certain permissible error, consequently has led to deck slab hoist and mount back of taking one's place, has certain difference in height between the deck slab, and the bridge deck pavement of design does not have leveling layer (only has 7 cm's pouring asphalt concrete pavement on the deck slab, the upper surface layer is 4 cm's fine grain formula asphalt concrete, lower surface layer is 3cm pouring asphalt concrete), if do not adjust the deck slab difference in height can cause following problem:

(1) If the pavement thickness of the pouring type asphalt bridge deck is guaranteed to be at least 7cm, the slope needs to be adjusted integrally; the integral slope adjustment of the bridge deck slab can cause the pouring type asphalt to be over square greatly, and the construction cost is increased;

(2) If the pouring type asphalt seriously exceeds the square, the load of the upper structure of the bridge deck is increased, and the bearing capacity of the bridge design is influenced to a certain extent;

(3) If the height difference of adjacent boards is large, problems such as reflection cracks and the like exist, the structure safety is not facilitated, and the later-stage repair cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a portable decking correction platform according to above-mentioned prior art's is not enough, is connected the both ends of hoist cable respectively with the lug of top gallows and the pre-buried hoisting point of decking that needs to adjust, utilizes jack drive top gallows upward movement to realize raising the decking that needs to adjust.

The utility model discloses the purpose is realized accomplishing by following technical scheme:

a portable decking correction platform which characterized in that: the device comprises a bottom moving device and a top height adjusting device, wherein the bottom moving device comprises a bottom steel frame, longitudinal support legs and universal wheels, two ends of the bottom steel frame are respectively provided with two longitudinal support legs, and each longitudinal support leg is provided with one universal wheel; the top height adjusting device comprises a top hanging bracket and jacks, wherein lifting lugs are respectively installed at two ends of the bottom of the top hanging bracket, one jack is respectively arranged at two ends of the top of the bottom steel frame, two ends of the bottom of the top hanging bracket are respectively connected with the top ends of the two jacks, and the jacks drive the top hanging bracket to move up and down.

The bottom steelframe includes two crossbeams and many longerons, two pass through between the crossbeam the longeron is connected and two the jack is all located on the longeron.

The two ends of the top of the bottom steel frame are respectively provided with a limiting device, each limiting device comprises two vertical beams and two connecting beams, the two vertical beams are connected through the connecting beams, square spaces are formed between the vertical beams and the connecting beams, the top hanging frame is located in the square spaces, and the top hanging frame can move in the height direction of the square spaces.

Each longitudinal supporting leg is provided with a telescopic fixing device.

The utility model has the advantages that:

1. the adjustment of one bridge deck plate takes about 30min (including the time required for the movable bridge deck plate correction platform to lift the bridge deck plate and the bridge-lower ascending vehicle to be matched with and place the steel backing plate) when needed, the movable bridge deck plate correction platform is simple to operate, the movable wheels are arranged below the movable bridge deck plate correction platform, the movable bridge deck plate correction platform is more convenient to move, less labor is required for plate adjustment construction, and the matching construction is relatively easy;

2. about 1.2 ten thousand of mobile bridge deck correction platforms are manufactured (the cost of steel and welding is low), and the manufacturing cost is low; compared with the integral slope adjustment of the cast asphalt, the height difference adjustment of the mobile bridge deck correction platform greatly reduces the cost of the excessive volume of the cast asphalt caused by the integral slope adjustment;

3. the height difference of the adjacent plates is adjusted through the movable bridge deck correction platform (the height difference between the adjacent plates is controlled within 1 cm), the problems of subsequent reflection cracks and the like caused by the overlarge height difference between the bridge decks are avoided, and the potential safety hazard of the structure and the subsequent repair cost are reduced.

Drawings

Fig. 1 is a vertical view of a mobile bridge deck correction platform of the present invention;

FIG. 2 is a cross-sectional view of the mobile bridge deck correction platform of the present invention;

fig. 3 is a top view of the mobile bridge deck correction platform of the present invention.

Detailed Description

The features of the present invention and other related features are described in further detail below by way of example in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:

as shown in fig. 1-3, reference numerals 1-22 in the figures are respectively indicated as a cross beam 1, a top hanger 2, a longitudinal beam 3, a longitudinal leg 4, a vertical beam 5, a first connecting beam 6, a second connecting beam 7, a jack base 8, a jack base 9, a bottom plate 10, a top plate 11, a lifting lug 12, a first connecting piece 13, a second connecting piece 14, a third connecting piece 15, a fourth connecting piece 16, a fifth connecting piece 17, a sixth connecting piece 18, a seventh connecting piece 19, a nut 20, a universal wheel 21 and a jack 22.

Example (b): as shown in fig. 1 to 3, the present embodiment relates to a mobile bridge deck slab correction platform, which mainly includes a bottom moving device and a top height adjusting device, wherein the bottom moving device includes a bottom steel frame, longitudinal legs 4 and universal wheels 21, two ends of the bottom steel frame are respectively provided with two longitudinal legs 4, and each longitudinal leg 4 is provided with one universal wheel 21, wherein the universal wheels 21 are connected with the longitudinal legs 4 through a third connecting member 15 and a sixth connecting member 18. The top height adjusting device comprises a top hanging bracket 2 and a jack 22, two lifting lugs 12 are respectively installed at two ends of the bottom of the top hanging bracket 2, the length of the top hanging bracket 2 is shorter than that of a bottom steel frame, two ends of the top of the bottom steel frame are respectively provided with the jack 22, two ends of the bottom of the top hanging bracket 2 are respectively connected with the top ends of the two jacks 22, and the jack 22 drives the top hanging bracket 2 to do lifting motion. Two ends of the sling are respectively connected with the lifting lugs 12 of the top hanging bracket 2 and the embedded hoisting points of the bridge deck to be adjusted, and the top hanging bracket 2 is driven by the jack 22 to move upwards, so that the bridge deck to be adjusted is lifted.

As shown in fig. 1-3, the bottom steel frame includes two cross beams 1 and five longitudinal beams 3, the five longitudinal beams 3 are arranged in parallel at intervals, the two cross beams 1 are connected through the five longitudinal beams 3, and two jacks 22 are respectively arranged on the second longitudinal beam and the fourth longitudinal beam (counted from left to right). Wherein, the crossbeam 1 is connected with the longitudinal support leg 4 through a fourth connecting piece 16; the two ends of the jack 22 are respectively provided with a jack base 8 and a jack base 9, the jack base 8 is connected with the longitudinal beam 3 through a bottom plate 10, and the jack base 9 is connected with the top hanging bracket 2 through a top plate 11. In this embodiment, the cross beam 1, the top hanging bracket 2, the longitudinal beam 3 and the longitudinal support leg 4 are all H-shaped steel, and fifth connecting pieces 17 are arranged in the cross beam 1, the top hanging bracket 2, the longitudinal beam 3 and the longitudinal support leg 4 to play a role in reinforcement.

As shown in fig. 1-3, two limiting devices are respectively installed at two ends of the top of the bottom steel frame, the two limiting devices are respectively installed on the second longitudinal beam and the fourth longitudinal beam, each limiting device comprises two vertical beams 5 and two connecting beams, wherein the two connecting beams are respectively a first connecting beam 6 below and a second connecting beam 7 above, the first connecting beam 6 is connected with the vertical beam 5 through a second connecting piece 14, and the second connecting beam 7 is connected with the vertical beam 5 through a first connecting piece 13. Two are erected and are connected and erect through two tie-beams between the roof beam 5 and be formed with a mouthful font space between roof beam 5 and the tie-beam between the roof beam 5, and top gallows 2 is located a mouthful font space, and wherein, a mouthful font space width is corresponding with top gallows 2 width, and a mouthful font space height is greater than top gallows 2 height for top gallows 2 can't move on the width direction in a mouthful font space, but can follow the direction of height in a mouthful font space and remove, can carry on spacingly to top gallows 2.

As shown in fig. 1-3, each longitudinal leg 4 has a retractable securing means mounted thereon. In this embodiment, the retractable fixing device includes a nut 20 mounted on the longitudinal leg 4 and a screw (not shown) engaged with the nut 20, the nut 20 is connected to the longitudinal leg 4 through a seventh connecting member 19, the seventh connecting member 19 is provided with a mounting hole, and the screw passes through the mounting hole of the seventh connecting member 19 and is connected to the nut 20. The bridge deck below the screw rod is padded with a layer of steel plate, the relative position of the screw cap 20 on the screw rod is adjusted, the movable bridge deck correction platform is separated from the bridge deck, and the screw rod is used for supporting the movable bridge deck correction platform, so that the movable bridge deck correction platform is fixed. Furthermore, the retractable fixing device may be a hydraulic jack or the like.

In this embodiment, the universal wheel 21 is a heavy universal wheel, the jack 22 is a tooth-shaped jack, the nut 20 is a trapezoidal thread nut, and the screw is a trapezoidal thread nut. The vertical beam 5 is a channel steel, the first connecting beam 6 is L-shaped steel, the second connecting beam 7 is square tube steel, the first connecting piece 13 is right-angled, the second connecting piece 14 is square, the third connecting piece 15 and the fourth connecting piece 16 are triangular, and the fifth connecting piece 17, the sixth connecting piece 18 and the seventh connecting piece 19 are all plate-shaped.

As shown in fig. 1 to 3, the present embodiment also has the following construction method:

1. and measuring the elevation of the adjacent plate of the bridge deck.

2. The movable bridge deck correction platform is arranged on three bridge decks, wherein the longitudinal support legs 4 on two sides of the movable bridge deck correction platform are respectively arranged on the front plate and the rear plate, and the bridge deck in the middle of the movable bridge deck correction platform can be adjusted.

3. The movable bridge deck correction platform is connected with a bridge deck lifting point with the middle part needing to be adjusted by using a sling.

4. The deck of the bridge in the middle is raised by applying force to the jack 22.

5. The underbridge ascending vehicle is matched, and a steel plate is arranged at the center of the steel beam in a cushioning mode.

6. After the cushion is finished, if gaps exist, the gaps are beaten by a foaming agent, so that subsequent grouting and slurry leakage are prevented.

The beneficial technical effects of this embodiment do: the adjustment of one bridge deck plate takes about 30min (including the time required for the movable bridge deck plate correction platform to lift the bridge deck plate and the bridge-lower ascending vehicle to be matched with and place the steel backing plate) when needed, the movable bridge deck plate correction platform is simple to operate, the movable wheels are arranged below the movable bridge deck plate correction platform, the movable bridge deck plate correction platform is more convenient to move, less labor is required for plate adjustment construction, and the matching construction is relatively easy; about 1.2 ten thousand of mobile bridge deck correction platforms are manufactured (the cost of steel and welding is low), and the manufacturing cost is low; compared with the integral adjustment of the slope by adopting the mobile bridge deck correction platform, the adjustment of the height difference greatly reduces the cost of the excessive volume of the cast asphalt caused by the integral adjustment of the slope; the height difference of the adjacent plates is adjusted through the movable bridge deck correction platform (the height difference between the adjacent plates is controlled within 1 cm), the problems of subsequent reflection cracks and the like caused by the overlarge height difference between the bridge decks are avoided, and the potential safety hazard of the structure and the subsequent repair cost are reduced.

Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, the description is not repeated herein.

Claims

1. A portable decking correction platform which characterized in that: the device comprises a bottom moving device and a top height adjusting device, wherein the bottom moving device comprises a bottom steel frame, longitudinal support legs and universal wheels, two ends of the bottom steel frame are respectively provided with two longitudinal support legs, and each longitudinal support leg is provided with one universal wheel; the top height adjusting device comprises a top hanging bracket and jacks, wherein lifting lugs are respectively installed at two ends of the bottom of the top hanging bracket, one jack is respectively arranged at two ends of the top of the bottom steel frame, two ends of the bottom of the top hanging bracket are respectively connected with the top ends of the two jacks, and the jacks drive the top hanging bracket to move up and down.

2. The mobile decking calibration platform of claim 1, wherein: the bottom steel frame comprises two cross beams and a plurality of longitudinal beams, wherein the two cross beams are connected through the longitudinal beams, and the two jacks are arranged on the longitudinal beams.

3. The mobile decking calibration platform of claim 1, wherein: the two ends of the top of the bottom steel frame are respectively provided with a limiting device, each limiting device comprises two vertical beams and two connecting beams, the two vertical beams are connected through the connecting beams, square spaces are formed between the vertical beams and the connecting beams, the top hanging frame is located in the square spaces, and the top hanging frame can move in the height direction of the square spaces.

4. The mobile decking calibration platform of claim 1, wherein: each longitudinal supporting leg is provided with a telescopic fixing device.