CN215925703U - Steel truss support mounting tool - Google Patents
Steel truss support mounting tool Download PDFInfo
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- CN215925703U CN215925703U CN202122296551.5U CN202122296551U CN215925703U CN 215925703 U CN215925703 U CN 215925703U CN 202122296551 U CN202122296551 U CN 202122296551U CN 215925703 U CN215925703 U CN 215925703U
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Abstract
The utility model relates to the technical field of bridge construction, and discloses a steel truss girder support mounting tool, which comprises: the shoulder pole beam is erected at the top of the lower chord of the steel truss beam, and two ends of the shoulder pole beam extend outwards; the height of the frame-shaped platform is flush with the pier top cushion stone; the special-shaped lifting lug is detachably connected with the support; the electric guide chains are at least one pair, the movable ends of the electric guide chains are connected to the special-shaped lifting lugs, and the fixed ends of the electric guide chains are detachably fixed at the two ends of the carrying pole beam or the part, above the beam pad stone, of the steel truss beam. The utility model has the following advantages and effects: this application owing to utilize the shoulder pole roof beam to carry on and provide the fulcrum at steel longeron lower chord top for the support rises to the top, utilizes electronic chain guide to carry out horizontal removal simultaneously, can realize the accurate positioning and the adjustment to the support under the condition with the help of external main equipment, has saved manpower and materials, has also reduced constructor's work burden simultaneously.
Description
Technical Field
The application relates to the technical field of bridge construction, in particular to a steel truss girder support mounting tool.
Background
In the bridge construction process, the mounting of the support at the position of the steel truss girder is a crucial link in the bridge structure construction. How to improve the mounting efficiency of the support and make the support mounting tool convenient to operate is a problem which is inevitably encountered in construction.
At present, the mainstream construction mode is a direct hoisting mode, a support anchor rod is installed in advance, a support bolt hole is used as a hoisting point, and a hoisting belt and a hoisting machine are used for directly hoisting, installing and aligning.
Or, a sliding mode is adopted, a steel platform which is slightly higher than the support is manufactured beside the support cushion stone, the support is placed on the platform by a crane in advance when the steel truss girder is erected, a steel rail is laid between the platform and the cushion stone to serve as a support sliding track, and the support slides to a corresponding position on the cushion stone along the track by a guide chain.
The direct hoisting method is suitable for construction and installation of the cast-in-place box girder, and complex conditions that the tonnage of the support is small, no shielding object exists in the upper space of the support position, the crane can be directly installed and the like are required. The sliding method needs a crane with higher lifting capacity and high lifting height, a support needs to be placed in advance, the control precision is not high, and the elevation adjustment and bolt alignment of the support are difficult.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the prior art, the aim at of this application provides a steel longeron support mounting tool to realize quick accurate counterpointing the support mounting.
In order to achieve the above purposes, on one hand, the technical scheme is as follows:
the application provides a steel longeron support mounting tool for install the support between steel longeron and mound top stone, include:
the carrying pole beam is erected at the top of the lower chord of the steel truss beam along the longitudinal direction of the longitudinal bridge, and two ends of the carrying pole beam extend out of the lower chord of the steel truss beam;
the frame-shaped platform is of a cubic structure, and the height of the frame-shaped platform is flush with the pier top cushion stone;
the special-shaped lifting lug is detachably connected to the top of the support;
the electric guide chains are at least one pair in number, the movable ends of the electric guide chains are connected to the special-shaped lifting lugs, and the fixed ends of the electric guide chains are detachably fixed at two ends of the carrying pole beam or the part of the steel truss beam above the cross beam cushion stone.
Preferably, the installation tool further comprises:
the sliding device comprises a pair of strip-shaped steel plates, the strip-shaped steel plates and the steel truss girder lower chord member are arranged in the same direction, punching nails are arranged at two ends of each strip-shaped steel plate, and when the frame-shaped platform is erected on the sliding device, the front surface and the rear surface of the moving direction of the frame-shaped platform are butted with the punching nails.
Preferably, the profiled lifting lug comprises:
the inner part of the lug plate is provided with a lug hole;
and a plurality of connecting bolts are arranged, part of the connecting bolts is embedded into the lug plate, part of the threads extend out of the lug plate, and the distance between every two adjacent connecting bolts is the same as that of the matching holes in the support.
Preferably, the carrying pole beam includes:
a beam body;
and the lifting hole plates are arranged at two ends of the beam body and extend out in a vertical downward direction, and lifting holes are formed in the extending parts of the lifting hole plates.
Preferably, the thickness of the hanging hole plate is at least 10 mm.
Preferably, the steel truss girder support installation tool further includes:
the movable end of the top of the three-way jack is abutted against the steel truss girder;
when the support is dragged to a preset position, the transverse bridge movable end of the three-way jack abuts against the support.
Preferably, the other concrete pad roof beam that is provided with of mound top pad stone, steel longeron support mounting tool still includes:
the steel pad sliding plate is arranged at the top of the concrete pad beam, and the thickness of the steel pad sliding plate is at least 20 mm.
Preferably, the temporary cushion block is arranged between the pier top cushion stone and the steel truss girder, and the height of the temporary cushion block is the same as that of the support.
Preferably, a rigid shoveling pad is arranged between the temporary cushion block and the steel truss girder.
Preferably, the temporary cushion block is composed of an upper top plate, a lower top plate and a plurality of rib plates arranged between the top plates.
The beneficial effect that technical scheme that this application provided brought includes:
the utility model provides a steel longeron support mounting tool owing to utilize the shoulder pole roof beam to carry on and provide the fulcrum at steel longeron lower chord top for the support is upwards pulled up, utilizes electronic guide chain to carry out horizontal removal simultaneously, can realize the accurate positioning and the adjustment to the support under the condition without the help of external main equipment, has saved manpower and materials, has also reduced constructor's work burden simultaneously.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the present application before a support is completely installed.
Fig. 2 is a schematic structural view of the shoulder pole beam in the embodiment shown in fig. 1.
Fig. 3 is a schematic structural diagram of the profiled lifting lug in the embodiment shown in fig. 1.
Fig. 4 is a schematic structural diagram of the embodiment shown in fig. 1 after the support is installed.
Reference numerals:
1. a shoulder pole beam; 11. a beam body; 12. hoisting a hole plate; 2. a frame-shaped platform; 3. a special-shaped lifting lug; 31. a lug plate; 311. a lug hole; 32. a connecting bolt; 4. a steel truss girder lower chord; 5. a support; 6. a three-way jack; 7. a steel pad sliding plate; 8. a temporary cushion block; 9. and (5) rigid shoveling and cushioning.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The application provides an embodiment of steel longeron support mounting tool, includes: the device comprises a carrying pole beam 1, a frame-shaped platform 2, a special-shaped lifting lug 3 and an electric guide chain.
The carrying pole beam 1 is arranged on the top of the lower chord 4 of the steel truss girder, is shaped as shown in fig. 2, and is in some embodiments shaped as a square hollow tube, the extending direction of the square hollow tube is perpendicular to the lower chord 4 of the steel truss girder, namely the longitudinal direction of the bridge, and meanwhile, the carrying pole beam 1 extends out of the two sides of the lower chord 4 of the steel truss girder by the same length. Preferably, the beam body 11 is divided into a square beam body and hanging hole plates 12 arranged at two ends of the beam body 11, the hanging hole plates 12 are partially penetrated into the beam body 11, the top ends of the hanging hole plates 12 are welded with the beam body 11, the penetrated parts are also welded with the beam body 11, the structural strength of the hanging hole plates 12 is enhanced, and a subsequent electric guide chain is connected to the hanging hole in the hanging hole plates 12. Meanwhile, in order to secure the structural strength of the hanger plate 12, in some more preferred embodiments, the hanger plate 12 has a thickness of at least 10 mm.
In order to facilitate the sliding of the frame-shaped platform 2, in some preferred embodiments, a sliding device is further provided, and the sliding device is composed of a pair of strip-shaped steel plates, and the two ends of each strip-shaped steel plate are provided with punching nails for positioning, and the specific shape is similar to a snowboard, and the direction of each strip-shaped steel plate is towards the transverse bridge direction, namely the direction of the conveying support 5. When frame type platform 2 placed on the displacement device, be located the ascending front and back of moving direction just butt in towards the nail, whether the staff of being convenient for observes and places the accuracy, when removing frame type platform 2, can play the effect that reduces frictional force, also be so that too reduce frictional force simultaneously and lead to the balanced and support 5 of frame type to be difficult to control.
The special-shaped lifting lug 3 is mainly used for being connected with the support 5. Preferably, as shown in fig. 3, the special-shaped lifting lug 3 has a lifting lug plate 31, which is in a shape of a semi-circle, a semi-ellipse or a triangle with arc sides and partially protruding, and is used for providing a position for opening the lifting lug hole 311, and reducing the self-weight as much as possible on the basis of strength enough for pulling the support 5, the bottom of the lifting lug plate 31 is a partially protruding connecting bolt 32, the distance between adjacent connecting bolts 32 is the same as the hole distance of the support 5, and there are various fixing manners between the connecting bolt 32 and the lifting lug plate 31, in this embodiment, a hole with a shape similar to that of the connecting bolt 32 is opened on the lifting lug plate 31, and then the connecting bolt 32 is placed in the hole and welded and molded. The connecting bolt 32 is used for fixing the profile lug 3 on the support 5 and can be removed in the subsequent process so as to avoid influencing the support 5.
The electric guide chains are at least one pair and are mainly used for moving the support 5, when the electric guide chains are arranged at two ends of the shoulder pole beam 1, the electric guide chains are used for hoisting the support 5, and when the electric guide chains are arranged at the part of the steel truss beam above the cross beam cushion stone, the electric guide chains are used for transversely moving the support 5. Since the moving of the support 5 is not performed simultaneously, but may be performed step by step, and the electric chain guide may be easily disassembled, at least one pair may be used to complete all the processes, or multiple pairs may be provided to be performed simultaneously.
In normal construction process, be provided with cast-in-place shaping's concrete pad roof beam beside the mound base stone of steel longeron, its top is comparatively crude usually, and it is harder on the one hand that support 5 directly slides at its top, and on the other hand also can cause the harm to the concrete pad roof beam.
Therefore, in some preferred embodiments, the top of the concrete cushion beam is also provided with a steel cushion sliding plate 7 which is at least 20mm, so that damage caused by collision of edges and corners in the carrying process of the support 5 can be avoided, and meanwhile, after the surface of the steel cushion sliding plate 7 is cleaned up, the smoothness of the steel cushion sliding plate is higher, and the sliding of the support 5 is easier to perform.
And after shifting support 5 to the mound top stone pad, still need finely tune support 5 for support 5 is accurately installed and is predetermineeing the position, and mainly rely on the main prior art to hang support 5 a little to just break away from ground among the prior art, then uses the manpower to adjust, and in the use sight of this embodiment, does not have the usage space of main equipment, consequently after mound top stone pad is placed to support 5, general embodiment needs the manpower to adjust.
In order to reduce the labor burden of the constructors, as shown in fig. 4, in this embodiment, a three-way jack 6 is further provided, the upward direction of the three-way jack 6 is used for jacking up the whole steel truss girder, and the transverse direction of the three-way jack 6 is used for helping to adjust the position of the support 5, so that the labor intensity of the constructors can be effectively reduced.
In the above-mentioned process, the steel girder is generally lifted by a large-scale device to construct the support 5, but in this case, the steel girder is difficult to avoid and may shake up and down, which may damage the constructor and the support 5.
In order to solve this problem, as shown in fig. 1 or fig. 4, a temporary spacer 8 is further provided in this embodiment, and the steel truss is prevented from swinging downward by the temporary spacer 8, and accordingly, the height of the temporary spacer 8 needs to be slightly higher than the height of the support 5. Preferably, in order to prevent the temporary spacer 8 from scratching the steel truss, in some preferred embodiments, a rigid dip pad 9 is disposed on the top of the temporary spacer 8. In other preferred embodiments, in order to reduce the weight of the temporary cushion block 8, the temporary cushion block 8 is formed by welding a plurality of steel plates, and specifically, a plurality of rib plates are arranged between an upper top plate and a lower top plate and between the top plates, so that the total weight is reduced, and the temporary cushion block is convenient for workers to place or take out.
Taking the embodiment shown in fig. 1 as an example, the specific application process of the present application is as follows:
the shoulder pole beam 1 is hung on the top of the lower chord 4 of the steel truss beam, two ends of the shoulder pole beam symmetrically extend out and have the same extension length, and the fixed end of the electric guide chain is provided with a hook which is hung at a hanging hole on a hanging hole plate 12 of the shoulder pole beam 1.
The frame-shaped platform 2 is placed on the sliding system, the connecting bolt 32 of the special-shaped lifting lug 3 is inserted into the hole on the support 5, and the movable end of the electric guide chain is hooked in the lifting lug hole 311 of the special-shaped lifting lug 3 through fastening by using a nut.
And starting the electric guide chain, pulling up the support 5, pushing the frame-shaped platform 2 to the lower part of the support 5, and slowly placing the support 5 on the frame-shaped platform 2.
Promote frame type platform 2 to concrete pad roof beam side, demolish the stiff end of electronic chain of leading, be connected to the side of steel longeron, the expansion end of electronic chain of leading still is connected in lug hole 311 this moment.
Slowly start electronic chain of leading, avoid support 5 to turn on one's side, supplementary with manual adjustment simultaneously, remove support 5 from framework platform 2 to mound top stone packing top.
The position of the support 5 is adjusted through the three-way jack 6 and the electric guide chain, so that the support 5 is installed in place, and then the special-shaped lifting lug 3 is detached.
And finally, adjusting the elevation of the support 5 by using a temporary bolt or a steel wedge block, and entering the next process of bridge construction.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A steel truss support installation tool for installing a support (5) between a steel truss and a pier top keystone, comprising:
the carrying pole beam (1) is erected at the top of the lower chord (4) of the steel truss beam along the longitudinal direction of the longitudinal bridge, and two ends of the carrying pole beam (1) extend out of the lower chord (4) of the steel truss beam;
the frame-shaped platform (2) is of a cubic structure, and the height of the frame-shaped platform is flush with the pier top cushion stone;
the special-shaped lifting lug (3) is detachably connected to the top of the support (5);
the electric guide chains are at least one pair in number, the movable ends of the electric guide chains are connected to the special-shaped lifting lugs (3), and the fixed ends of the electric guide chains are detachably fixed at the two ends of the shoulder pole beam (1) or the part of the steel truss beam above the cross beam cushion stone.
2. The tool of claim 1, further comprising:
the sliding device comprises a pair of strip-shaped steel plates, the strip-shaped steel plates and the steel truss girder lower chord (4) are arranged in the same direction, punching nails are arranged at two ends of each strip-shaped steel plate, and when the sliding device is erected on the frame-shaped platform (2), the front and back two faces of the moving direction of the frame-shaped platform (2) are abutted to the punching nails.
3. A steel truss support installation tool as claimed in claim 1, wherein the profiled eye (3) comprises:
the lifting lug plate (31) is internally provided with a lifting lug hole (311);
and a plurality of connecting bolts (32) are partially embedded into the lug plate (31) and partially extend out of the lug plate (31), and the distance between adjacent connecting bolts (32) is the same as that of the matching holes on the support (5).
4. The tool of claim 1, wherein: the shoulder pole beam (1) comprises:
a beam body (11);
the pair of the suspended hole plates (12) are arranged at two ends of the beam body (11) and extend out in the vertical downward direction, and the extending parts of the suspended hole plates (12) are provided with suspended holes.
5. The tool of claim 4, wherein: the thickness of the suspended hole plate (12) is at least 10 mm.
6. A steel truss support installation tool as claimed in claim 1, wherein said steel truss support (5) installation tool further comprises:
the movable end of the top of the three-way jack (6) is abutted against the steel truss girder;
when the support (5) is dragged to a preset position, the movable end of the transverse bridge of the three-way jack (6) abuts against the support (5).
7. The tool for installing a steel truss girder support as claimed in claim 1, wherein a concrete pad girder is arranged beside the pier top pad stone, and the tool for installing a steel truss girder support (5) further comprises:
and the steel pad sliding plate (7) is arranged at the top of the concrete pad beam, and the thickness of the steel pad sliding plate is at least 20 mm.
8. The tool for installing the steel truss girder support according to claim 1, further comprising a temporary spacer block (8), wherein the temporary spacer block (8) is arranged between the pier top stone and the steel truss girder, and the height of the temporary spacer block (8) is the same as that of the support (5).
9. The tool of claim 8, wherein: and a rigid shoveling pad (9) is arranged between the temporary cushion block (8) and the steel truss girder.
10. The tool for installing a steel truss girder support according to claim 8, wherein the temporary spacer (8) is composed of an upper top plate and a lower top plate and a plurality of ribs arranged between the top plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122296551.5U CN215925703U (en) | 2021-09-18 | 2021-09-18 | Steel truss support mounting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122296551.5U CN215925703U (en) | 2021-09-18 | 2021-09-18 | Steel truss support mounting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215925703U true CN215925703U (en) | 2022-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122296551.5U Active CN215925703U (en) | 2021-09-18 | 2021-09-18 | Steel truss support mounting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215925703U (en) |
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2021
- 2021-09-18 CN CN202122296551.5U patent/CN215925703U/en active Active
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