CN207619857U - Bailey beam erection crane horizontal sliding device - Google Patents

Abstract

The utility model relates to a sliding device, in particular to a horizontal sliding device for a Bailey beam bridge deck crane. , the Bailey beam is provided with a longitudinal distribution beam, and the lifting top is installed on the longitudinal distribution beam. The Bailey beam is provided with a horizontal steel backing plate, and a horizontal MGE slide plate is provided below the longitudinal distribution beam. The steel backing plate and the MGE A horizontal stainless steel plate is laid between the sliding plates, and it also includes a first sliding device that drives the longitudinal distribution beam to move along the length direction of the cantilevered box girder of the main bridge, and a second sliding device that drives the longitudinal distribution beam to move along the width direction of the cantilevered box girder of the main bridge. Two sliding devices. The purpose of the utility model is to provide a horizontal sliding device for a Bailey girder deck crane, which can horizontally adjust the position of a steel box girder segment. It adopts Bailey frame, stainless steel plate, MGE slide plate, jack, chain hoist and other devices, with simple structure, easy installation, convenient construction, and easy to control the sliding distance.

Description

Horizontal sliding device of Bailey girder deck crane

technical field

The utility model relates to a sliding device, in particular to a horizontal sliding device for a Bailey beam bridge deck crane.

Background technique

Steel box girders are lighter than concrete girders, and have been widely used in the construction of long-span cable-stayed bridges and suspension bridges at home and abroad. Due to the different structural forms of bridges, topographic conditions of bridge sites, shipping conditions, and transportation conditions, the erection methods are also different. The conventional method for installing steel box girders of cross-river bridges at home and abroad is to equip large-scale floating cranes as lifting equipment under the condition of floating transportation, and use brackets to try to install them; or use tugboats to transport steel box girders to the bridge position Afterwards, it can be assembled by the cantilever of the bridge deck crane, and it can also be installed by erecting temporary piers; but for rivers that do not have shipping conditions and mountainous areas with complex terrain, the above methods will be greatly restricted in terms of beam transportation. Can't even build. The above installation methods, because most of them need to occupy the shipping channel, will affect the normal shipping during the construction process.

In the prior art, bridge deck cranes are used to lift steel box girder sections. After the steel box girder sections are lifted to the design elevation, they need to be positioned accurately, that is, the position of the steel box girder sections needs to be adjusted horizontally.

Utility model content

The purpose of the utility model is to provide a horizontal sliding device for a Bailey girder bridge deck crane, which can horizontally adjust the position of a steel box girder segment.

The above purpose of the utility model is achieved through the following technical solutions: a horizontal sliding device for a Bailey beam bridge deck crane, including a Bailey beam, on which a lifting top is arranged, and the lifting top is hoisted by a steel strand Steel box girder, the Bailey beam is provided with a longitudinal distribution beam, the lifting top is installed on the longitudinal distribution beam, the Bailey beam is provided with a horizontal steel backing plate, and the vertical distribution beam is provided with a horizontal MGE slide plate and a steel pad A horizontal stainless steel plate is laid between the plate and the MGE slide plate, and it also includes a first sliding device that drives the longitudinal distribution beam along the length direction of the cantilevered box girder of the main bridge, and pushes the longitudinal distribution beam along the width direction of the cantilevered box girder of the main bridge Move the second skid.

By adopting the above-mentioned technical scheme, the lifting top pulls up the steel strand through hydraulic power, thereby lifting the steel box girder upwards. The surface crane slides along the length direction and width direction of the cantilevered box girder of the main bridge in the horizontal plane, so that the steel box girder can be positioned accurately.

Preferably, the Bailey beam is also provided with a transverse distribution beam, the longitudinal distribution beam is arranged on the upper surface of the transverse distribution beam, and the lifting top is arranged on the upper surface of the longitudinal distribution beam, wherein the longitudinal distribution beam is arranged along the length direction of the steel box girder.

By adopting the above technical solution, the longitudinal distribution beam and the lifting top are connected as a whole, and can slide relative to the horizontal distribution beam.

Preferably, a stainless steel plate is laid horizontally between the transverse distribution beam and the longitudinal distribution beam, and the second sliding device includes a jack fixed on the transverse distribution beam.

By adopting the above technical solution, laying the stainless steel plate is beneficial to reduce the frictional resistance when the transverse distribution beam and the longitudinal distribution beam slide relative to each other.

Preferably, one jack is provided on both sides of the transverse distribution beam, and a pair of jacks are provided facing each other.

By adopting the above technical scheme, the two jacks can repeatedly push each other, so that the steel box girder can be precisely positioned.

Preferably, the transverse distribution beam is provided with a fixed seat, and the jack is provided on the side of the fixed seat.

By adopting the above technical solution, it is beneficial to push the longitudinal distribution beam horizontally.

Preferably, the top of the fixing seat is connected with the top of the longitudinal distribution beam with an anchoring steel plate.

By adopting the above technical solution, the fixing stability of the fixing seat is improved.

Preferably, the horizontal distribution beam, the longitudinal distribution beam, and the fixing seat are all double-jointed I-beams.

By adopting the above-mentioned technical scheme, the use of the double-split I-beam is beneficial to improve the structural strength.

Preferably, the first sliding device includes a chain block, and the chain block connects the transverse distribution beam and the Bailey beam.

By adopting the above-mentioned technical scheme, the transverse distribution beam can be pulled on the horizontal plane, so that the transverse distribution beam, the longitudinal distribution beam and the lifting roof as a whole can slide relative to the Bailey beam along the length direction of the cantilevered box girder of the main bridge.

In summary, the utility model has the following beneficial effects:

It adopts Bailey frame, stainless steel plate, MGE slide plate, jack, chain hoist and other devices, with simple structure, easy installation, convenient construction, and easy to control the sliding distance.

Description of drawings

Fig. 1 is the front view of the steel Bailey deck crane installed on the cantilevered box girder of the main bridge;

Figure 2 is an enlarged view of part A in Figure 1;

Fig. 3 is a 1-1 direction sectional view of Fig. 1;

Fig. 4 is the 2-2 direction sectional view of Fig. 1;

Figure 5 is a schematic diagram of the connection between part of the Bailey beam and the lifting top and the chain hoist;

Fig. 6 is an enlarged view of part B in Fig. 5;

Figure 7 is an enlarged view of part C in Figure 1;

Fig. 8 is a sectional view along the line 3-3 of Fig. 5 .

Reference signs: 1. Cantilevered box girder of the main bridge; 2. Bailey beam; 21. Bailey frame; 3. I-beam truss; 4. Steel box girder; 5. Horizontal distribution beam; 6. Longitudinal distribution beam; 7. Lifting top; 71. Upper gripper; 72. Lower gripper; 8. Steel strand; 9. Rear anchor rod; 10. Rear anchor pressure beam; 11. Steel backing plate; 12. MGE slide plate; 13 , stainless steel plate; 14, fixed seat; 15, anchor steel plate; 16, chain block; 17, H-shaped steel reinforced strut; 18, I-shaped steel reinforced strut; 19, hanging plate; 20, balance adjustment rod; 21, Type steel backing beam; 22. Bamboo plywood backing plate; 23. Fence; 24. Jack.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Example

A steel Bailey bridge deck crane, as shown in Figure 1, the cantilevered box girder 1 of the main bridge spanning the two banks is not closed, and a crane is arranged at the opposite ends of the cantilevered box girder 1 of the two sections of the main bridge. A Bailey beam 2 is built on each lifting point, and a lifting roof 7 for lifting the steel strand 8 is set on the top of the Bailey beam 2 near the construction end, and the steel box girder 4 is hoisted on the steel strand with a spreader. 8 times, the steel strand 8 is lifted by the lifting top 7 of hydraulic power, so that the steel box girder 4 is lifted to the design elevation position. Then respectively use the first sliding device and the second sliding device to make the steel box girder 4 slide on the horizontal plane, so as to be in place accurately.

1 and 2, the lifting top 7 includes an upper clamper 71 and a lower clamper 72 for clamping the steel strand 8, and the hydraulic rod lifts the upper clamper 71 upwards to raise the steel strand 8 . The lower holder 72 is installed and fixed on the upper surface of the longitudinal distribution beam 6 made of Shuangpin 45# I-beam, and the longitudinal distribution beam 6 is arranged along the length direction of the cantilevered box girder 1 of the main bridge. The top of the Bailey beam 2 is also provided with a transverse distribution beam 5, and a longitudinal distribution beam 6 is arranged on the upper surface of the transverse distribution beam 5, and both are vertical. The hanger is a hanging plate 19, which is fixed on the upper surface of the steel box girder 4, the two ends of the longitudinal distribution beam 6 and the two ends of the spreader are respectively connected with balance adjustment rods 20, and the steel strand 8 is connected to the hanging plate 19 surface center.

Combining Figure 1 and Figure 3, the upper surface of the cantilevered box girder 1 of the main bridge is provided with two rows of Bailey beams 2 parallel to each other. Each group includes upper and lower layers of Bailey frames 21 arranged along the length direction of the cantilevered box girder 1 of the main bridge, wherein the first layer at the bottom is two rows of Bailey frames 21, and the second layer is four rows of Bayley frames 21. The two rows of Baileys 21 facing the construction end in the second layer of Baileys 21 are suspended in the air, and the upper surface of the cantilevered box girder 1 of the main bridge is close to the outer end of the first layer of Baileys 21. A 40# H-shaped steel reinforcement strut 17 is erected. A 20# I-shaped steel reinforced strut 18 is welded and fixed between the bottoms of the two rows of bailey frames 21 suspended in the second floor and the H-shaped steel reinforced struts 17 respectively.

Combining Figure 1 and Figure 4, the above-mentioned two columns of Bailey beams 2 are respectively installed directly above the two side walls of the inner cavity of the cantilevered box girder 1 of the main bridge, and each column of Bailey beams 2 is made of four precision-rolled rebars The rear anchor rods 9 are anchored on the cantilevered box girder 1 of the main bridge. The top of the rear anchor rods 9 penetrates to the upper surface of the Bailey beam 2, and the bottom penetrates to the bottom of the cantilevered box girder 1 of the main bridge. The four rear anchor rods 9 Two pairs are symmetrical about the side wall of the inner cavity of the cantilevered box girder 1 of the main bridge, and the distribution width of the four rear anchor rods 9 is greater than the length of each row of Bailey beams 2 along the width direction of the cantilevered box girder 1 of the main bridge. The top of the Bailey beam 2 is pressed with a rear anchor beam 10 made of double 45# I-shaped steel. The rear anchor beam 10 is arranged along the width direction of the cantilevered box girder 1 of the main bridge, and the top of the rear anchor rod 9 is fixed on the rear anchor beam. On the beam 10, the rear anchor rod 9 and the lifting top 7 are respectively located at the two ends of the top of the Bailey beam 2. The two columns of Bailey beams 2 are reinforced and connected by I-beam trusses 3, and the Bailey frames 21 are high-shear steel Baileys. There are also fences 23 made of I-shaped steel erected on both sides of the top of the Bailey beam 2 to protect people walking around on the top of the Bailey beam 2 .

As shown in Fig. 5 and Fig. 6, the top of the Bailey beam 2 is horizontal, and a 20mm thick steel backing plate 11 is laid, and a 2mm thick stainless steel plate 13 is laid on the steel backing plate 11, and a 35mm thick stainless steel plate 13 is laid on the stainless steel plate 13. The MGE slide plate 12, the transverse distribution beam 5 is located on the upper surface of the MGE slide plate 12, and the vertical distribution beam 6 and the lifting roof 7 are erected on the upper surface of the transverse distribution beam 5. The top of Bailey beam 2 and the transverse distribution beam 5 are connected by a chain hoist 16, and the chain hoist 16 is driven by a motor with a reducer, or the chain hoist 16 is manually pulled, and the transverse distribution beam 5 can be moved along the horizontal plane. The cantilevered box girder 1 of the main bridge drags and slides along the length direction. The chain hoist 16 is the above-mentioned first sliding device.

As shown in Figure 7, the upper surface of the main bridge cantilevered box girder 1 is covered with a 2cm bamboo plywood backing plate 22, and the bamboo plywood backing plate 22 is covered with a profiled steel backing beam 21 along the width direction of the main bridge cantilevered box girder 1. Lightning beam 2 is mounted on the shaped steel pad beam 21.

As shown in Figure 8, the upper surface of the transverse distribution beam 5 is respectively fixed on the two sides of the longitudinal distribution beam 6 with a fixed seat 14 made of double 18# I-beam, and a pair of fixed seats 14 sides are fixed with jacks 24, a pair of The jacks 24 are arranged horizontally facing each other. A horizontal 2 mm thick stainless steel plate 13 is laid between the horizontal distribution beam 5 and the longitudinal distribution beam 6. The jack 24 can use the longitudinal distribution beam 6 and the lifting top 7 as a whole to overhang the box girder 1 of the main bridge. The width direction pushes and slides, and the jack 24 is the above-mentioned second sliding device. The top of the fixed base 14 and the top of the longitudinal distribution beam 6 are welded and fixed with a 2cm thick anchor steel plate 15 .

The working principle and usage method of the steel Bailey bridge deck crane are as follows:

The lifting top 7 pulls up the steel strand 8 through hydraulic power, thereby lifting the steel box girder 4 upwards. After the steel box girder 4 is lifted to the design height, the longitudinal distribution beam 6 is pushed by the jack 24. Since the longitudinal distribution beam 6 and the horizontal distribution beam 5, lay stainless steel plate 13, so the longitudinal distribution beam 6 can be pushed relative to the transverse distribution beam 5, and move along the width direction of the cantilevered box girder 1 of the main bridge in the horizontal plane. Pull the transverse distribution beam 5 by the chain block 16 again, because the MGE slide plate 12, the steel backing plate 11, the stainless steel plate 13 are also laid between the transverse distribution beam 5 lower surface and the Bailey beam 2 top, so the transverse distribution beam 5 can be The puller moves along the length direction of the cantilevered box girder 1 of the main bridge in the horizontal plane relative to the Bailey beam 2 . The above sliding adjustment of the bridge deck crane finally makes the steel box girder 4 accurately in place.

This specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model. After reading this description, those skilled in the art can make modifications to the embodiment without creative contribution according to needs, but as long as it is within the utility model All new claims are protected by patent law.

Claims (8)

1. A horizontal sliding device for a Bailey beam bridge deck crane, including a Bailey beam (2), on which a lifting top (7) is provided, and the lifting top (7) passes through a steel strand (8) ) hoisting the steel box girder (4), characterized in that: the Bailey beam (2) is provided with a longitudinal distribution beam (6), the lifting top (7) is installed on the longitudinal distribution beam (6), and the Bailey beam ( 2) A horizontal steel backing plate (11) is provided on the top, a horizontal MGE slide plate (12) is provided under the longitudinal distribution beam (6), and a horizontal stainless steel plate is laid between the steel backing plate (11) and the MGE slide plate (12). The plate (13) also includes a first sliding device that drives the longitudinal distribution beam (6) to move along the length direction of the cantilevered box girder (1) of the main bridge, and pushes the longitudinal distribution beam along the width direction of the cantilevered box girder (1) of the main bridge. The beam (6) moves the second skid. 2. The horizontal sliding device of the Bailey beam bridge deck crane according to claim 1, characterized in that: the Bailey beam (2) is also provided with a transverse distribution beam (5), a longitudinal distribution beam (6) It is arranged on the upper surface of the horizontal distribution beam (5), and the lifting top (7) is arranged on the upper surface of the longitudinal distribution beam (6), wherein the longitudinal distribution beam (6) is arranged along the length direction of the steel box girder (4). 3. The horizontal sliding device of the Bailey beam deck crane according to claim 2, characterized in that: a stainless steel plate (13) is also laid horizontally between the horizontal distribution beam (5) and the longitudinal distribution beam (6) ), the second sliding device includes a jack (24) fixed on the transverse distribution beam (5). 4. The horizontal sliding device of the Bailey beam deck crane according to claim 3, characterized in that: a jack (24) is provided on both sides of the transverse distribution beam (5), and a pair of jacks (24 ) facing each other. 5. The horizontal sliding device of the Bailey beam deck crane according to claim 4, characterized in that: the horizontal distribution beam (5) is provided with a fixed seat (14), and the jack (24) is arranged on the fixed seat (14) side. 6. The horizontal sliding device of the Bailey beam deck crane according to claim 5, characterized in that: the top of the fixing seat (14) is connected with the top of the longitudinal distribution beam (6) with an anchoring steel plate (15). 7. The horizontal sliding device of the Bailey beam deck crane according to claim 5, characterized in that: the horizontal distribution beam (5), the longitudinal distribution beam (6), and the fixing seat (14) are double-assembled I-beam. 8. The horizontal sliding device of the Bailey beam deck crane according to claim 1, characterized in that: the first sliding device includes a chain hoist (16), and the chain hoist (16) is connected to the transverse distribution beam (5) vs. Bailey Beam (2).