Unloading-free slippage joint for slippage of steel truss

Abstract

An unloading-free sliding joint for sliding of a steel truss comprises a sliding rail, the sliding rail is arranged on a concrete track beam in the sliding advancing direction and welded to a sliding rail embedded part pre-embedded in the upper portion of the concrete track beam in advance, two longitudinal rows of foundation bolts are vertically embedded in the concrete track beam, and the two longitudinal rows of foundation bolts are welded to the sliding rail embedded part. The upper ends of the foundation bolts extend out of the surface of the concrete track beam, and nuts are arranged at the upper ends of the foundation bolts; the sliding shoes are arranged in the sliding rails in a sliding mode, and the sliding shoes are driven by a power mechanism to move along the sliding rails; the steel truss is fixedly connected with the sliding shoe, a passing hole is formed in the position, corresponding to a foundation bolt, of the steel truss, and the lower end of the passing hole is open so that the top end of the foundation bolt can penetrate through the passing hole; wherein the distance between the bottom of the steel truss and the top of the concrete track beam is 8-10mm, and after the sliding node is adopted for sliding, after the sliding node slides in place, a welding seam is adopted for filling and leveling up, the height difference is supplemented, and the steel truss does not need to be unloaded any more.

Description

Technical Field

[0001] The utility model relates to the field of steel truss sliding, and more specifically, to an unloading-free sliding node for steel truss sliding. Background Art

[0002] In the field of steel structure installation, the combination of steel truss roof + concrete frame structure is more common. Commonly used heavy steel roof construction methods include large-tonnage crane hoisting and sliding. Due to the narrow construction site, it is not conducive to the assembly of steel trusses and the positioning of cranes; the building height and depth are large, and the use of a large crane model for hoisting is very uneconomical, and there are great safety risks during the installation process. Conventional sliding construction technology raises and slides the roof, and then unloads multiple steel trusses in the roof in different areas. This type of construction technology has high requirements for the synchronization of unloading, is difficult to construct, and takes a lot of time for labor and machinery. The cost of measures is high and the economy is poor. Utility Model Content

[0003] In order to achieve these purposes and other advantages according to the utility model, a preferred embodiment of the utility model provides a non-unloading sliding node for steel truss sliding, comprising:

[0004] The slide rail is arranged on the concrete track beam along the sliding advancing direction and is welded to the slide rail embedded parts pre-buried above the concrete track beam;

[0005] A sliding shoe is slidably disposed in the sliding rail, and the sliding shoe moves along the sliding rail under the drive of the power mechanism;

[0006] A steel truss is fixedly connected to the sliding shoe, and a through hole is provided on the steel truss at a position corresponding to the anchor bolt, and the lower end of the through hole is open to allow the top end of the anchor bolt to pass through;

[0007] The distance between the bottom of the steel truss and the top of the concrete track beam is 8-10 mm.

[0008] According to a preferred embodiment of the utility model, two side blocks are respectively welded obliquely on the two outer sides of the slide rail, and the distance between the two side blocks is one sliding thread.

[0009] According to a preferred embodiment of the utility model, two longitudinal rows of anchor bolts are vertically buried in the concrete track beam, the upper ends of the anchor bolts extend out of the surface of the concrete track beam, and nuts are provided at the upper ends of the anchor bolts, the height of the through hole is greater than the height of the anchor bolt protruding from the top of the concrete track beam, and the width of the through hole is greater than the width of the nut.

[0010] According to a preferred embodiment of the utility model, the power mechanism is a jacking device, and a jacking lug plate and a jacking corbel are installed on the steel truss for connecting the jacking device.

[0011] According to a preferred embodiment of the utility model, a nut screw assembly is installed at the end of the anchor bolt embedded in the concrete track beam.

[0012] According to a preferred embodiment of the present invention, the distance between the bottom of the steel truss and the top of the concrete track beam is 10 mm.

[0013] According to a preferred embodiment of the utility model, the slide rail needs to be filled with butter before sliding.

[0014] According to a preferred embodiment of the utility model, the sliding shoe comprises a sliding shoe body with a trapezoidal cross-section that is larger at the top and smaller at the bottom, and a bottom plate connected thereto, and the bottom ends of the bottom plate and the sliding shoe body have the same size.

[0015] The utility model at least includes the following beneficial effects: after the sliding node of the utility model slides, after the sliding is in place, the weld is used to fill and level the height difference, and there is no need to unload the steel truss.

[0016] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the unloading-free sliding node used for sliding of the steel truss in the utility model.

[0018] Figure 2 It is a structural schematic diagram of the sliding shoe in the utility model. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0020] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0021] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0022] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0023] like Figure 1-2 As shown, a preferred embodiment of the utility model provides a non-unloading sliding node for sliding of a steel truss, comprising:

[0024] The slide rail 1 is arranged on the concrete track beam 2 in the sliding forward direction and is welded to the slide rail embedded parts pre-buried above the concrete track beam. Two longitudinal rows of anchor bolts 3 are vertically embedded in the concrete track beam 2. The upper ends of the anchor bolts 3 extend out of the surface of the concrete track beam 2, and nuts 4 are arranged on the upper ends of the anchor bolts. The slide rail 1 needs to be filled with butter before sliding to facilitate sliding.

[0025] A sliding shoe 5, which is slidably disposed in the sliding rail 1, and the sliding shoe 5 moves along the sliding rail 1 under the drive of the power mechanism;

[0026] A steel truss 7 is fixedly connected to the sliding shoe 5, and a through hole 8 is provided on the steel truss 7 at a position corresponding to the anchor bolt 3, and the lower end of the through hole 8 is open to allow the top end of the anchor bolt 3 to pass through;

[0027] The distance between the bottom of the steel truss 7 and the top of the concrete track beam 2 is 8-10 mm, marked as H.

[0028] In the above technical solution, in order to overcome the difficulty that the part of the nut 4 exposed from the concrete track beam 2 conflicts with the web of the steel truss 7 during the sliding process, it is considered to open a through hole 8 on the web of the steel truss 7, and the opening position is the conflict area between the nut 4 and the web, and the place is post-welded after the sliding is completed;

[0029] Among them, the key to unloading-free sliding lies in the height of the sliding shoe 5. The height of the sliding shoe 5 determines the distance that the roof is lifted up. By designing the height of the sliding shoe 5, the distance between the bottom of the steel truss 7 and the top of the concrete track beam 2 is 8-10mm. After the sliding is in place in the later stage, the weld is used to fill the height difference and the gap between the bottom of the steel truss 7 and the top of the concrete track beam 2 is directly welded and filled, and there is no need to unload the steel roof.

[0030] According to a preferred embodiment of the utility model, two side blocks 9 are welded obliquely on both outer sides of the slide rail 1 to ensure the stability of the side wall of the slide rail, and the distance between the two side blocks is one sliding thread.

[0031] According to a preferred embodiment of the utility model, the height of the through hole 8 is greater than the height of the anchor bolt 3 protruding from the top of the concrete track beam 2, and the width of the through hole 8 is greater than the width of the nut 4, which is convenient for crossing the anchor bolt 3 when walking.

[0032] According to a preferred embodiment of the utility model, the power mechanism is a jacking device, and a jacking lug plate 6 and a jacking corbel are installed on the steel truss 7 for connecting the jacking device.

[0033] According to a preferred embodiment of the utility model, a nut screw assembly is installed at the end of the anchor bolt 3 embedded in the concrete track beam 2, so that the embedded connection strength is greater.

[0034] According to a preferred embodiment of the present invention, the bottom of the steel truss 7 and the top of the concrete track beam 2 are 10 mm apart. It has been proven through construction that this distance is optimal, which can facilitate welding and leveling, and prevent the uneven top of the concrete track beam 2 from affecting the slippage of the steel truss 7.

[0035] According to a preferred embodiment of the utility model, the sliding shoe 5 includes a sliding shoe body 5-1 with a trapezoidal cross section that is larger at the top and smaller at the bottom, and a bottom plate 5-2 connected thereto. The bottom plate and the lower end of the sliding shoe body have the same size, and the width of the bottom plate is narrower than the width of the slide groove of the slide rail, which can effectively prevent the sliding support from getting stuck due to unevenness of the slide rail - "gnawing the rail". Among them, the height of the sliding shoe body 5-1 is the key to avoid unloading, and the control of this height directly determines the height of the roof steel truss.

[0036] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A non-unloading sliding node for sliding of steel trusses, characterized in that: include: The slide rail is arranged on the concrete track beam along the sliding advancing direction and is welded to the slide rail embedded parts pre-buried above the concrete track beam; two longitudinal rows of anchor bolts are vertically buried in the concrete track beam, the upper ends of the anchor bolts extend out of the surface of the concrete track beam, and nuts are arranged on the upper ends of the anchor bolts; A sliding shoe is slidably disposed in the sliding rail, and the sliding shoe moves along the sliding rail under the drive of the power mechanism; A steel truss is fixedly connected to the sliding shoe, and a through hole is provided on the steel truss at a position corresponding to the anchor bolt, and the lower end of the through hole is open to allow the top end of the anchor bolt to pass through; The distance between the bottom of the steel truss and the top of the concrete track beam is 8-10 mm.

2. The unloading-free sliding node for sliding of steel trusses according to claim 1 is characterized in that: Two side blocks are respectively welded obliquely on the two outer sides of the slide rail, and the distance between the two side blocks is one sliding thread.

3. The unloading-free sliding node for sliding of steel trusses according to claim 1, characterized in that: The height of the through hole is greater than the height of the anchor bolt protruding from the top of the concrete track beam, and the width of the through hole is greater than the width of the nut.

4. The unloading-free sliding node for sliding of steel trusses according to claim 1, characterized in that: The power mechanism is a jacking device, and a jacking lug plate and a jacking bracket are installed on the steel truss for connecting the jacking device.

5. The unloading-free sliding node for sliding of steel trusses according to claim 1, characterized in that: The end of the anchor bolt pre-buried in the concrete track beam is installed with a nut screw assembly.

6. The unloading-free sliding node for sliding of steel trusses according to claim 1, characterized in that: The distance between the bottom of the steel truss and the top of the concrete track beam is 10 mm.

7. The unloading-free sliding node for sliding of steel trusses according to claim 1, characterized in that: The sliding shoe comprises a sliding shoe body with a trapezoidal cross section that is larger at the top and smaller at the bottom, and a bottom plate connected thereto, and the bottom ends of the bottom plate and the sliding shoe body have the same size.

8. The unloading-free sliding node for sliding of steel trusses according to claim 1, characterized in that: The slide rail needs to be filled with butter before sliding.

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