Lossless connecting device used between temporary supports

Abstract

The utility model relates to the technical field of steel structure construction, in particular to a lossless connecting device used between temporary supports, which is arranged between temporary support frames and comprises H-shaped steel, a rib plate is fixedly connected to the top surface of a wing plate below the H-shaped steel, a clamping groove is arranged on the rib plate, a U-shaped clamp with a downward opening is detachably hung in the clamping groove, and the U-shaped clamp is fixedly connected with the H-shaped steel. The temporary supporting frame comprises a transverse rod, the transverse rod is detachably sleeved with the U-shaped clamp, the two arms of the U-shaped clamp are movably sleeved with baffles, and the ends of the U-shaped clamp are in threaded connection with nuts used for fixing the baffles. According to the lossless connecting device, the construction problem of how to realize lossless connection between temporary supports is effectively solved, and a large number of connecting joints can be used in subsequent large-span space steel structure construction; the lossless connecting device between the temporary supports is convenient to mount and dismount, high in adaptability, efficient in construction, easy to manufacture, high in cost performance and high in construction safety.

Description

Technical Field

[0001] The utility model relates to the field of steel structure construction technology, in particular to a lossless connection device used between temporary supports. Background Art

[0002] There are more and more large-span steel structure projects with unique and novel shapes, especially in high-speed railway stations, airports, convention and exhibition centers and stadiums. Large-span and large cantilever structures emerge in an endless stream. How to construct them accurately and safely has become an important issue.

[0003] In steel structure construction, there are three main systems, namely the hoisting system, the support system and the welding system. The hoisting system mainly involves hoisting and lifting equipment. According to different structural forms, corresponding hoisting and lifting equipment is selected, such as crawler cranes, truck cranes, tower cranes and floating cranes. The welding system relies more on welding technology. According to different forms of plate thickness, material and welding environment, corresponding welding technology is selected.

[0004] However, for the support system of steel structure, various steel structure construction units adopt different temporary support forms, including steel pipe piles, Bailey frames, homemade H-shaped steel, discarded tower crane standard sections and lattice columns, etc. For the installation process using tower crane standard sections as temporary support system, instability may occur due to the high temporary support height.

[0005] The existing method of using cables to fix temporary supports has the following disadvantages: first, the rigidity is insufficient. The cables are flexible connections and cannot provide sufficient rigidity to resist the risk of overturning of the temporary supports. Second, when using cables, four cables are set for each group of temporary supports. The number of cables is too large, and the burial of cables will affect the on-site lifting work. Utility Model Content

[0006] In order to solve the above problems existing in the prior art, the utility model provides a lossless connection device for temporary supports.

[0007] The utility model provides a non-destructive connection device for temporary supports, which adopts the following technical solution:

[0008] A lossless connection device for temporary supports is arranged between temporary support frames, including H-shaped steel, the top surface of the wing plate below the H-shaped steel is fixedly connected with a rib plate, the rib plate is provided with a card slot, and a U-shaped card with an opening facing downward can be detachably hung in the card slot. The temporary support frame includes a cross bar, the U-shaped card is detachably sleeved on the cross bar, baffles are movably sleeved on both arms of the U-shaped card, and nuts for fixing the baffles are threadedly connected to the ends of the U-shaped card.

[0009] By adopting the above technical solution, the H-shaped steel is placed between two temporary support frames. The U-shaped clamp is sleeved on the cross bar and hung in the clamping groove. The rib plate provides vertical support for the U-shaped clamp. Subsequently, the baffle plate and nut are installed on the U-shaped clamp to achieve effective rigid connection between two adjacent temporary support frames. The nondestructive connection device is convenient for installation and removal, has strong adaptability, high construction efficiency, simple production, high cost performance and high construction safety.

[0010] Optionally, the rib plate is L-shaped and its bottom end projects outwards. The clamping groove is arranged at the top edge of the projecting part of the rib plate.

[0011] By adopting the above technical solution, the L-shaped rib plate is convenient for hanging and installing the U-shaped clamp.

[0012] Optionally, the rib plate is vertically and fixedly connected between the web and the upper and lower two flange plates of the H-shaped steel.

[0013] By adopting the above technical solution, the rib plate is fixedly connected to both the web and the flange plates, improving the connection strength and stability of the rib plate.

[0014] Optionally, two pairs of rib plates are respectively arranged at both ends of the H-shaped steel, and the two pairs of rib plates at any one end are respectively located on different sides of the web of the H-shaped steel.

[0015] By adopting the above technical solution, each cross bar is connected by two symmetrically arranged U-shaped clamps, and the connection is stable and firm.

[0016] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0017] The H-shaped steel is placed between two temporary support frames. The U-shaped clamp is sleeved on the cross bar and hung in the clamping groove. The rib plate provides vertical support for the U-shaped clamp. Subsequently, the baffle plate and nut are installed on the U-shaped clamp to achieve effective rigid connection between two adjacent temporary support frames. The nondestructive connection device is convenient for installation and removal, has strong adaptability, high construction efficiency, simple production, high cost performance and high construction safety;

[0018] The L-shaped rib plate is convenient for hanging and installing the U-shaped clamp;

[0019] The rib plate is fixedly connected to both the web and the flange plates, improving the connection strength and stability of the rib plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an installation schematic diagram of the nondestructive connection device for between temporary supports in an embodiment of the present utility model.

[0021] Figure 2 is a structural schematic diagram of the nondestructive connection device for between temporary supports in an embodiment of the present utility model Figure 1 .

[0022] Figure 3Structural schematic of the non-destructive connection device between temporary supports in an embodiment of the present utility model Figure 2 。

[0023] Explanation of reference numerals: 1, temporary support frame; 10, cross bar; 2, H-shaped steel; 3, rib plate; 30, card slot; 4, U-shaped clamp; 5, baffle; 6, nut. Specific implementation manner

[0024] The following will further elaborate on the present utility model in conjunction with the attached Figure 1 - attached Figure 3 drawings.

[0025] An embodiment of the present utility model discloses a non-destructive connection device between temporary supports. Referring to Figure 1 and Figure 2 , the non-destructive connection device between temporary supports is installed between two adjacent temporary support frames 1, and the temporary support frame 1 includes a cross bar 10. The non-destructive connection device includes an H-shaped steel 2, and two pairs of rib plates 3 are provided at both ends of the H-shaped steel 2. The two pairs of rib plates 3 at any one end are located on different sides of the web. The rib plates 3 are welded and fixed between the web and the flange of the H-shaped steel 2, and the rib plates 3 are perpendicular to both the flange and the web of the H-shaped steel 2.

[0026] Referring to Figure 2 and Figure 3 , the rib plate 3 is L-shaped, and its bottom end projects outwards. A card slot 30 is opened at the top edge of the projecting part of the rib plate 3. A U-shaped clamp 4 is hung on each pair of rib plates 3. The U-shaped clamp 4 is arranged with its opening facing downwards and sleeved on the cross bar 10. A baffle 5 is movably sleeved on the two arms of the U-shaped clamp 4. The baffle 5 is located below the cross bar 10. The end of the U-shaped clamp 4 is threadedly connected with a nut 6 for fixing the baffle 5, and the nut 6 is located below the baffle 5.

[0027] The implementation principle of the non-destructive connection device between temporary supports in an embodiment of the present utility model is as follows: The staff first place the H-shaped steel 2 on the cross bars 10 of the two temporary support frames 1, then sleeve the U-shaped clamp 4 on the cross bar 10 and hang the U-shaped clamp 4 in the card slot 30, sleeve the baffle 5 on the two arms of the U-shaped clamp 4, and finally screw the nut 6 onto the U-shaped clamp 4 to fix the baffle 5. By using the U-shaped clamp 4 to fix the rib plate 3 with the card slot 30 and the cross bar 10 of the temporary support frame 1, the construction problem of how to non-destructively connect between temporary supports is effectively solved. In subsequent large-span space steel structure construction, this connection node can be widely used. The non-destructive connection device between temporary supports is convenient to install and remove, has strong adaptability, high construction efficiency, simple production, high cost performance and high construction safety.

[0028] The above are all preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model shall be covered within the protection scope of the present utility model.

Claims

1. A non-destructive connection device for temporary supports, arranged between temporary support frames (1), characterized in that: The temporary support frame (1) comprises an H-shaped steel (2), wherein a rib plate (3) is fixedly connected to the top surface of the wing plate below the H-shaped steel (2), a card slot (30) is arranged on the rib plate (3), a U-shaped card (4) with an opening facing downwards can be detachably hung in the card slot (30), the U-shaped card (4) can be detachably sleeved on the cross bar (10), baffle plates (5) are movably sleeved on both arms of the U-shaped card (4), and nuts (6) for fixing the baffle plates (5) are threadedly connected to the ends of the U-shaped card (4).

2. The lossless connection device for temporary supports according to claim 1, characterized in that: The rib plate (3) is L-shaped and has a bottom end cantilevered outwards, and the clamping groove (30) is arranged on the top edge of the cantilevered portion of the rib plate (3).

3. The lossless connection device for temporary supports according to claim 2, characterized in that: The rib plate (3) is vertically fixed between the web plate and the upper and lower wing plates of the H-shaped steel (2).

4. The lossless connection device for temporary supports according to any one of claims 1 to 3, characterized in that: Two pairs of ribs (3) are respectively arranged at both ends of the H-shaped steel (2), and the two pairs of ribs (3) at either end are respectively located on different sides of the web of the H-shaped steel (2).

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