A slider suitable for longitudinal and transverse movement of ultra-heavy steel box girders and its usage method

Abstract

The present invention belongs to the technical field of bridge construction, and specifically provides a slider suitable for the longitudinal and transverse movement of an overweight steel box girder and a use method thereof, comprising a connecting plate, a slider pad, an anchor, a steel box girder pad, a slider top plate and a slider bottom plate, wherein the connecting plate is placed vertically, the upper side of the connecting plate is horizontally connected to the slider top plate, the upper side of the slider top plate is horizontally connected to the steel box girder pad, the lower side of the connecting plate is horizontally connected to the slider bottom plate, the lower side of the slider bottom plate is horizontally connected to the slider pad, and the side of the connecting plate is connected to the anchor, which solves the problem that the slider in the prior art is used as an important medium for sliding the steel box girder, and traditionally slides in one direction. When the steel box girder moves longitudinally and transversely, the steel box girder needs to be lifted up and reinstalled, which is not only time-consuming and labor-intensive, but also prone to safety hazards in high-altitude operations. The structure itself is light and simple, flexible, recyclable and safe, and well solves the problems of construction quality, work efficiency and safety caused by reinstalling and replacing the slider when the steel box girder moves longitudinally and transversely.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge construction, and in particular relates to a sliding block suitable for longitudinal and transverse movement of an overweight steel box girder and a use method thereof. Background Art

[0002] At present, in the process of bridge construction, the sliding technology of steel box girders is widely used. As an important medium for the sliding of steel box girders, sliders traditionally slide in one direction. When the steel box girder moves vertically or horizontally, it is necessary to lift up and reinstall the steel box girder, which is not only time-consuming and labor-intensive, but also prone to potential safety hazards in high-altitude operations. The most important feature of the slider of the present invention is that it can slide vertically and horizontally. When changing the direction of movement, it is only necessary to replace the lower anchor and install it in another direction to continue construction. Since it can be used for the horizontal and vertical movement of steel box girders, the construction time is greatly reduced. In order to ensure the safety of on-site construction, a reasonable and effective slider for the vertical and horizontal movement of overweight steel box girders is particularly important. If the design is unreasonable, it will cause a series of problems such as the inability to guarantee construction quality and safety. Summary of the invention

[0003] The present invention provides a slider suitable for the longitudinal and transverse movement of an overweight steel box girder and a method of use. The first purpose is to overcome the problem that the slider in the prior art is an important medium for the sliding of the steel box girder, which traditionally slides in one direction. When the steel box girder moves longitudinally and transversely, the steel box girder needs to be lifted up and reinstalled, which is not only time-consuming and labor-intensive, but also prone to safety hazards in high-altitude operations; the second purpose is to overcome the construction safety problems in the prior art caused by irregular operation of the on-site moving slider, and the problem that standard and safe construction cannot be guaranteed.

[0004] To this end, the present invention provides a slider suitable for the longitudinal and transverse movement of an overweight steel box girder, comprising a connecting plate, a slider pad, an anchor, a steel box girder pad, a slider top plate and a slider bottom plate. The connecting plate is placed vertically, the top of the connecting plate is horizontally connected to the slider top plate, the top of the slider top plate is horizontally connected to the steel box girder pad, the bottom of the connecting plate is horizontally connected to the slider bottom plate, the bottom of the slider bottom plate is horizontally connected to the slider pad, and the side of the connecting plate is connected to the anchor.

[0005] It also includes countersunk bolts, the steel box beam pad and the slider top plate are connected by the countersunk bolts, and the slider bottom plate and the slider pad are connected by the countersunk bolts.

[0006] The connecting plate has holes at the center of the front side, the center of the rear side, the center of the left side and the center of the right side. When moving longitudinally, the anchor connects to the hole at the center of the front side or the hole at the center of the rear side. When moving transversely, the anchor connects to the hole at the center of the left side or the hole at the center of the right side.

[0007] Two small holes are arranged on the front side, rear side, left side and right side of the connecting plate, and the two small holes are located on both sides of the hole on the side.

[0008] The material of the slider pad is engineering plastic alloy.

[0009] The material of the steel box girder pad is a plastic plate.

[0010] The material of the slider bottom plate is Q235B steel.

[0011] The contact surface areas of the steel box girder pad and the slider top plate are equal, and the contact surface areas of the slider bottom plate and the slider pad are equal.

[0012] A method for using a slider suitable for longitudinal and transverse movement of an overweight steel box girder, the specific steps are: 1) when moving transversely, first put the slider suitable for longitudinal and transverse movement of the overweight steel box girder into a designated track, then hoist the steel box girder onto the slider suitable for longitudinal and transverse movement of the overweight steel box girder so that the upper side of the steel box girder pad contacts the steel box girder and the lower side of the slider pad contacts the track, then install the anchor to the hole on the left side or the hole on the right side of the connecting plate, and finally pull the anchor to move transversely to drive the slider suitable for longitudinal and transverse movement of the overweight steel box girder to move transversely;

[0013] 2) When moving longitudinally, the anchor of step 1) is removed from the hole of step 1) and installed to the hole on the front side or the hole on the rear side of the connecting plate, and the slider is driven to move longitudinally by pulling the anchor.

[0014] In the step 1), lubricating oil is applied between the slider pad and the track.

[0015] Beneficial effects of the invention: The slider and use method suitable for the longitudinal and transverse movement of the super-heavy steel box girder provided by the invention include a connecting plate, a slider pad, an anchor, a steel box girder pad, a slider top plate and a slider bottom plate, the connecting plate is placed vertically, the upper side of the connecting plate is horizontally connected to the slider top plate, the upper side of the slider top plate is horizontally connected to the steel box girder pad, the lower side of the connecting plate is horizontally connected to the slider bottom plate, the lower side of the slider bottom plate is horizontally connected to the slider pad, and the side of the connecting plate is connected to the anchor; a method for using a slider suitable for the longitudinal and transverse movement of the super-heavy steel box girder, the specific steps are: 1) when moving transversely, first move the slider suitable for the super-heavy steel box girder The slider for the longitudinal and transverse movement of the box girder is placed in the designated track, and then the steel box girder is placed on the slider suitable for the longitudinal and transverse movement of the super-heavy steel box girder by hoisting so that the upper side of the steel box girder pad contacts the steel box girder and the lower side of the slider pad contacts the track, and then the anchor is installed to the hole on the left side or the right side of the connecting plate, and finally the anchor is pulled to move transversely to drive the slider suitable for the longitudinal and transverse movement of the super-heavy steel box girder to move transversely; 2) when moving longitudinally, the anchor of step 1) is removed from the hole of step 1) and installed to the hole on the front side or the rear side of the connecting plate, and the slider is driven to move longitudinally by pulling the anchor. The most important feature of the slider of the present invention is that it can slide in the vertical and horizontal directions. When changing the moving direction, it is only necessary to replace the lower anchor and install it in the other direction to continue construction. Since it can be used for the vertical and horizontal movement of the steel box girder, the construction time is greatly reduced. In order to ensure the safety of on-site construction, the present invention has a simple structure and is applicable to various types of steel box girders. Since the slider does not need to lift up the steel box girder to change the direction of the slider when moving vertically and horizontally, the time for reinstalling the slider due to track replacement is greatly reduced. Since the reinstallation and replacement process is reduced, it is safer for operators when working at high altitudes. Since its own structure is light and simple, flexible, recyclable and safe, it well solves the problems of construction quality, work efficiency, safety and other problems caused by the reinstallation and replacement of the slider when the steel box girder moves vertically and horizontally. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below with reference to the accompanying drawings.

[0017] Figure 1 It is a front view of the structure of the present invention when moving longitudinally;

[0018] Figure 2 yes Figure 1 Horizontal section diagram.

[0019] Explanation of the accompanying reference numerals: 1. connecting plate; 2. slider pad; 3. countersunk bolt; 4. anchor; 5. steel box girder pad; 6. block top plate; 7. slider bottom plate; 8. hole; 9. small hole. DETAILED DESCRIPTION

[0020] Embodiment 1:

[0021] A slider suitable for longitudinal and transverse movement of an overweight steel box girder comprises a connecting plate 1, a slider pad 2, an anchor 4, a steel box girder pad 5, a slider top plate 6 and a slider bottom plate 7. The connecting plate 1 is placed vertically, the top of the connecting plate 1 is horizontally connected to the slider top plate 6, the top of the slider top plate 6 is horizontally connected to the steel box girder pad 5, the bottom of the connecting plate 1 is horizontally connected to the slider bottom plate 7, the bottom of the slider bottom plate 7 is horizontally connected to the slider pad 2, and the side of the connecting plate 1 is connected to the anchor 4.

[0022] Embodiment 2:

[0023] like Figure 1-2 As shown, a slider suitable for longitudinal and transverse movement of an overweight steel box girder comprises a connecting plate 1, a slider pad 2, an anchor 4, a steel box girder pad 5, a slider top plate 6 and a slider bottom plate 7. The connecting plate 1 is placed vertically, the top of the connecting plate 1 is horizontally connected to the slider top plate 6, the top of the slider top plate 6 is horizontally connected to the steel box girder pad 5, the bottom of the connecting plate 1 is horizontally connected to the slider bottom plate 7, the bottom of the slider bottom plate 7 is horizontally connected to the slider pad 2, and the side of the connecting plate 1 is connected to the anchor 4. The specific steps of the method of using the present invention are as follows: 1) when moving horizontally, first put the slider suitable for the longitudinal and transverse movement of the super-heavy steel box beam into the designated track, then hoist the steel box beam onto the slider suitable for the longitudinal and transverse movement of the super-heavy steel box beam so that the upper side of the steel box beam pad 5 contacts the steel box beam and the lower side of the slider pad 2 contacts the track, then install the anchor 4 to the hole 8 on the left side or the hole 8 on the right side of the connecting plate 1, and finally pull the anchor to move horizontally to drive the slider suitable for the longitudinal and transverse movement of the super-heavy steel box beam to move horizontally; 2) when moving vertically, remove the anchor 4 of step 1) from the hole 8 of step 1) and install it to the connecting plate 1. The hole 8 on the front side surface or the hole 8 on the rear side surface of the plate 1 is used to move longitudinally by traction anchors, thereby driving the slider to move longitudinally. The present invention has a simple structure and is applicable to various types of steel box girders. Since the slider does not need to lift up the steel box girder to change its direction when it moves longitudinally and transversely, the time for reinstalling the slider due to track replacement is greatly reduced. Since the reinstallation and replacement process is reduced, it is safer for operators to work at high altitudes. Since its own structure is light and simple, it is flexible, recyclable and safe, and it well solves the problems of construction quality, work efficiency, safety and other problems caused by the reinstallation and replacement of the slider when the steel box girder moves longitudinally and transversely.

[0024] The steel box beam pad 5 and the slider top plate 6 are connected by the countersunk bolts 3, and the slider bottom plate 7 and the slider pad 2 are connected by the countersunk bolts 3. The countersunk bolts 3 have the advantages of high strength and can keep the surface flat after fixed installation.

[0025] The connecting plate 1 has holes 8 at the center of the front side, the center of the rear side, the center of the left side, and the center of the right side. When moving longitudinally, the anchor 4 connects the hole 8 at the center of the front side or the hole 8 at the center of the rear side. When moving transversely, the anchor 4 connects the hole 8 at the center of the left side or the hole 8 at the center of the right side. The hole 8 is used for limiting and fixing the anchor.

[0026] The front side, rear side, left side and right side of the connecting plate 1 are provided with two small holes 9, and the two small holes 9 are located on both sides of the hole 8 on the side. The first slider in the forward direction is pulled by the anchor, and the second slider behind is fixed with two finely rolled threaded steel bars through the small holes 9 to keep connected with the previous one. Two threads are set to prevent the rear side of the steel box girder from shaking left and right when it is dragged, and it is easy to keep the straight prestressed steel bars moving forward.

[0027] The material of the slider pad 2 is engineering plastic alloy, which has good elasticity and impact resistance, low friction coefficient, large load-bearing capacity, wear resistance and corrosion resistance.

[0028] The material of the steel box girder pad 5 is a plastic plate, which is an engineering polymer plastic plate having good strength, hardness, wear resistance and corrosion resistance.

[0029] The material of the slider bottom plate 7 is Q235B steel. Q235B steel has high strength, low price, good toughness and castability.

[0030] The contact surface areas of the steel box girder pad 5 and the slider top plate 6 are equal, and the contact surface areas of the slider bottom plate 7 and the slider pad 2 are equal. The steel box girder pad is a plastic plate with the same size as the slider top plate, which is fixed between the slider and the steel box girder with countersunk bolts to increase friction, have a beautiful structure, and prevent the steel box girder from moving relative to the slider.

[0031] A method for using a slider suitable for longitudinal and transverse movement of an overweight steel box girder, the specific steps are as follows: 1) when moving transversely, first put the slider suitable for longitudinal and transverse movement of the overweight steel box girder into a designated track, then hoist the steel box girder onto the slider suitable for longitudinal and transverse movement of the overweight steel box girder so that the upper side of the steel box girder pad 5 contacts the steel box girder and the lower side of the slider pad 2 contacts the track, then install the anchor 4 to the hole 8 on the left side or the hole 8 on the right side of the connecting plate 1, and finally pull the anchor to move transversely to drive the slider suitable for longitudinal and transverse movement of the overweight steel box girder to move transversely; when moving transversely to the left, install the anchor 4 to the hole 8 on the left side of the connecting plate 1, and when moving transversely to the right, remove the anchor 4 and install it to the hole 8 on the right side of the connecting plate 1;

[0032] 2) When moving longitudinally, remove the anchor 4 of step 1) from the hole 8 of step 1) and install it to the hole 8 on the front side or the hole 8 on the rear side of the connecting plate 1, and drive the slider to move longitudinally by pulling the anchor. When moving forward longitudinally, remove the anchor and install it to the hole 8 on the front side of the connecting plate 1, and when moving backward longitudinally, remove the anchor and install it to the hole 8 on the rear side of the connecting plate 1; the above-mentioned pulling anchor is fixed to the anchor by prestressed steel bars, and the anchor is pulled by pulling the prestressed steel bars to drive the slider suitable for longitudinal and transverse movement of the overweight steel box girder; the anchor can also be pulled by other pulling lines.

[0033] In the step 1), lubricating oil is applied between the slider pad 2 and the track. The slider pad and the track are lubricated, and the slider is pulled and pulled to slide. The slider pad is a steel plate, and the material and size are the same as those of the slider bottom plate. The lubricating oil is machine oil, etc.

[0034] Embodiment 3:

[0035] On the basis of Example 2, a slider suitable for longitudinal and transverse movement of an overweight steel box girder comprises a connecting plate 1, a slider pad 2, an anchor 4, a steel box girder pad 5, a slider top plate 6 and a slider bottom plate 7. The connecting plate 1 is placed vertically, the upper surface of the connecting plate 1 is horizontally connected to the slider top plate 6, the upper surface of the slider top plate 6 is horizontally connected to the steel box girder pad 5, the lower surface of the connecting plate 1 is horizontally connected to the slider bottom plate 7, the lower surface of the slider bottom plate 7 is horizontally connected to the slider pad 2, and the side surface of the connecting plate 1 is connected to the anchor 4. It also comprises a plurality of countersunk bolts 3, the steel box girder pad 5 and the slider top plate 6 are connected by the plurality of countersunk bolts 3, and the slider bottom plate 7 and the slider pad 2 are connected by the plurality of countersunk bolts 3. The connecting plate 1 includes a front plate, a rear plate, a left plate, and a right plate. The front plate and the rear plate, the left plate and the right plate are all arranged vertically and parallelly, and the middle parts of the front plate and the rear plate are vertically connected to the middle parts of the left plate and the right plate. The contact surface areas of the steel box girder pad 5 and the slider top plate 6 are equal, and the contact surface areas of the slider bottom plate 7 and the slider pad 2 are equal. The area of ​​the slider top plate 6 is smaller than the area of ​​the slider bottom plate 7. The connecting plate 1 has a hole 8 at the longitudinal center (the center of the front side and the center of the rear side) and the transverse center (the center of the left side and the center of the right side), and the anchor 4 connects the hole 8 in the moving direction; the hole 8 is a hole with a diameter of 100mm-150mm; the front side, rear side, left side, and right side of the connecting plate 1 have two small holes 9, and the two small holes 9 are located on both sides of the hole 8 on the side thereof; the small holes 9 are small holes with a diameter of 5mm-20mm. The two small holes of 20mm are connected to the rear slider through two Φ18 steel bars. The material of the slider pad 2 is engineering plastic alloy. The material of the steel box beam pad 5 is engineering polymer plastic plate. The thickness of the slider pad 2 and the steel box beam pad 5 are both 30mm. The material of the slider bottom plate 7 is Q235B steel.

[0036] The present invention has a simple structure and is applicable to various types of steel box girders. Since the steel box girder does not need to be lifted up to change the direction of the slider when the slider moves longitudinally and transversely, the time for reinstalling the slider due to track replacement is greatly reduced; since the reinstallation and replacement process is reduced, it is safer for operators to work at heights; since its own structure is light and simple, flexible, recyclable and safe, it well solves the problems of construction quality, work efficiency, safety and the like caused by the reinstallation and replacement of the slider when the steel box girder moves longitudinally and transversely.

[0037] Embodiment 4:

[0038] A method for using a slider suitable for longitudinal and transverse movement of an overweight steel box girder, the specific steps are as follows: 1) during transverse movement, first place the slider suitable for longitudinal and transverse movement of the overweight steel box girder into a designated track, then hoist the steel box girder onto the slider suitable for longitudinal and transverse movement of the overweight steel box girder so that its steel box girder pad 5 contacts the steel box girder above and the slider pad 2 contacts the track below, then install the anchor 4 to the hole 8 on the left side or the hole 8 on the right side of the connecting plate 1, finally move the anchor laterally by pulling the anchor to drive the slider suitable for longitudinal and transverse movement of the overweight steel box girder to move laterally; 2) during longitudinal movement, remove the anchor 4 of step 1) from the hole 8 of step 1) and install it to the hole 8 on the front side or the hole 8 on the rear side of the connecting plate 1, and drive the slider to move longitudinally by pulling the anchor to move longitudinally.

[0039] The most important feature of the slider of the present invention is that it can slide in the vertical and horizontal directions. When changing the moving direction, it is only necessary to replace the lower anchor and install it in the other direction to continue construction. Since it can be used for the vertical and horizontal movement of the steel box girder, the construction time is greatly reduced. In order to ensure the safety of on-site construction, the present invention has a simple structure and is applicable to various types of steel box girders. Since the slider does not need to lift up the steel box girder to change the direction of the slider when moving vertically and horizontally, the time for reinstalling the slider due to track replacement is greatly reduced. Since the reinstallation and replacement process is reduced, it is safer for operators when working at high altitudes. Since its own structure is light and simple, flexible, recyclable and safe, it well solves the problems of construction quality, work efficiency, safety and other problems caused by the reinstallation and replacement of the slider when the steel box girder moves vertically and horizontally.

[0040] Embodiment 5:

[0041] On the basis of Example 4, when moving the slider suitable for the longitudinal and transverse movement of the overweight steel box girder, first check whether the slideway is normal and intact before the sliding construction of the steel box girder. In order to prevent the difference in the sliding speed of the steel beams on the brackets on both sides, red paint is used as a ruler on the two slideway beams. When the steel beam slides, the ruler on the slideway beam is used as a reference to observe whether the sliding of the steel beam is synchronized. Before the sliding of the steel beam, the prestressed steel bars, elevation and span of the built pier top surface are re-measured. The sliding construction of the steel beam can be carried out only when the error is within the allowable range.

[0042] In summary, the present invention provides a sliding block suitable for the longitudinal and transverse movement of overweight steel box girders. Since the sliding block can be moved in the longitudinal and transverse directions, there is no need to lift the steel box girder, which greatly reduces the construction time; since different angles and positions can be adjusted according to the on-site environment, the use efficiency is greatly improved; since the surface is painted to avoid rust, the appearance and corrosion resistance are better; since the structure is light and simple, flexible, recyclable and safe, it well solves the construction safety problems caused by irregular on-site operations.

[0043] In the description of the present invention, it should be understood that if there are terms such as "upper" and "lower" indicating an orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent.

[0044] The above examples are merely illustrative of the present invention and do not constitute a limitation on the protection scope of the present invention. All designs that are the same or similar to the present invention fall within the protection scope of the present invention.

Claims

1. A method for using a slider suitable for longitudinal and transverse movement of an overweight steel box girder, characterized in that: The specific steps are as follows: 1) when moving horizontally, firstly, the slider suitable for the longitudinal and transverse movement of the super-heavy steel box beam is placed in the designated track, and then the steel box beam is placed on the slider suitable for the longitudinal and transverse movement of the super-heavy steel box beam by hoisting so that the upper side of the steel box beam pad (5) contacts the steel box beam and the lower side of the slider pad (2) contacts the track, and then the anchor (4) is installed to the hole (8) on the left side or the hole (8) on the right side of the connecting plate (1), and finally, the anchor is pulled to move horizontally, thereby driving the slider suitable for the longitudinal and transverse movement of the super-heavy steel box beam to move horizontally; 2) When moving longitudinally, the anchor (4) of step 1) is removed from the hole (8) of step 1) and installed to the hole (8) on the front side or the hole (8) on the rear side of the connecting plate (1), and the slider is driven to move longitudinally by pulling the anchor; The slider suitable for longitudinal and transverse movement of an overweight steel box girder comprises a connecting plate (1), a slider pad (2), an anchor (4), a steel box girder pad (5), a slider top plate (6) and a slider bottom plate (7); the connecting plate (1) is placed vertically, the top of the connecting plate (1) is horizontally connected to the slider top plate (6), the top of the slider top plate (6) is horizontally connected to the steel box girder pad (5), the bottom of the connecting plate (1) is horizontally connected to the slider bottom plate (7), the bottom of the slider bottom plate (7) is horizontally connected to the slider pad (2), and the side of the connecting plate (1) is connected to the anchor (4).

2. The method for using the sliding block suitable for longitudinal and transverse movement of an overweight steel box beam as claimed in claim 1, characterized in that: In the step 1), lubricating oil is applied between the slider pad (2) and the rail.

3. The method for using the sliding block suitable for longitudinal and transverse movement of an overweight steel box beam as claimed in claim 1, characterized in that: It also includes countersunk bolts (3), the steel box beam pad (5) and the slider top plate (6) are connected via the countersunk bolts (3), and the slider bottom plate (7) and the slider pad (2) are connected via the countersunk bolts (3).

4. The method for using the sliding block suitable for longitudinal and transverse movement of an overweight steel box beam as claimed in claim 3, characterized in that: The connecting plate (1) has holes (8) at the center of the front side, the center of the rear side, the center of the left side and the center of the right side. When moving longitudinally, the anchor (4) connects to the hole (8) at the center of the front side or the hole (8) at the center of the rear side. When moving transversely, the anchor (4) connects to the hole (8) at the center of the left side or the hole (8) at the center of the right side.

5. The method for using the sliding block suitable for longitudinal and transverse movement of an overweight steel box beam as claimed in claim 4, characterized in that: Two small holes (9) are provided on the front side, rear side, left side and right side of the connecting plate (1), and the two small holes (9) are located on both sides of the hole (8) on the side thereof.

6. The method for using the sliding block suitable for longitudinal and transverse movement of an overweight steel box beam as claimed in claim 5, characterized in that: The material of the slider pad (2) is engineering plastic alloy.

7. The method for using the sliding block suitable for longitudinal and transverse movement of an overweight steel box beam as claimed in claim 6, characterized in that: The material of the steel box girder pad (5) is a plastic plate.

8. The method for using the sliding block suitable for longitudinal and transverse movement of an overweight steel box beam as claimed in claim 7, characterized in that: The material of the slider bottom plate (7) is Q235B steel.

9. The method for using the sliding block suitable for longitudinal and transverse movement of an overweight steel box beam as claimed in claim 8, characterized in that: The contact surface areas of the steel box beam pad (5) and the slider top plate (6) are equal, and the contact surface areas of the slider bottom plate (7) and the slider pad (2) are equal.

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