Steel bar truss floor support plate over-span temporary support construction method

Abstract

The invention discloses a steel bar truss floor support plate super-span temporary support construction method. The method comprises the following steps that the position of an installation lifting point is determined on an upper steel beam above a floor support plate; determining the position of a connecting point on the floor support plate; selecting a corresponding steel wire rope component according to the position of the mounting lifting point and the position of the connecting point; and the mounting lifting point and the connecting point are connected through the steel wire rope component. According to the steel bar truss floor support plate over-span temporary support construction method, the steel beam structure cannot be damaged, construction is easy, manpower and materials cannot be wasted, and the overall construction efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure construction, and in particular to a construction method for temporary over-span support of a steel bar truss floor deck. Background Art

[0002] It is a common phenomenon that the steel truss floor deck exceeds the unsupported span. In order to avoid collapse during concrete pouring, the steel truss floor deck that exceeds the unsupported span needs to be supported and reinforced, thereby changing the unfavorable stress state of the steel truss floor deck during the construction phase.

[0003] The usual practice is to set up a temporary support scaffolding under the steel truss floor deck or weld a steel support on the steel beam below. If a scaffold is used for support, it is not easy to obtain steel pipe materials that meet the floor height requirements. If there are multiple parts of the truss plate that exceed the span on the same floor, the scaffolding material consumption is large, and it is difficult to transport the steel pipe material between layers, and the ground under the truss plate must be kept flat. If the steel is welded at the bottom of the truss plate for support, it is necessary to weld the steel on the installed steel beam, which will damage the steel beam parent material and anti-corrosion paint. After the concrete is poured, the welded steel affects the building effect and needs to be removed, wasting materials and labor. Summary of the invention

[0004] In view of this, the object of the present invention is to provide a method for constructing temporary over-span support for reinforced truss floor decking, which will not damage the steel beam structure, is simple to construct, will not waste labor and materials, and has high overall construction efficiency.

[0005] The present invention provides a method for constructing a temporary over-span support for a steel truss floor deck, comprising the following steps:

[0006] Determine the location of the installation hanging point on the upper steel beam above the floor deck;

[0007] Determining the location of the connection point on the floor deck;

[0008] Selecting a corresponding wire rope component according to the position of the installation suspension point and the position of the connection point;

[0009] The installation suspension point and the connection point are connected by the steel wire rope member.

[0010] In one embodiment, determining the position of the installation hanging point on the upper steel beam above the floor deck further includes:

[0011] Determining the position of the floor deck;

[0012] Select an installation hanging point on the upper steel beam, and ensure that the installation hanging point is directly above the floor deck.

[0013] In one embodiment, the step of determining the position of the connection point on the floor deck further comprises:

[0014] Determine the positions of the two supporting points of the lower steel beam on the floor deck;

[0015] Select a connection point approximately halfway between the two support points.

[0016] In one embodiment, selecting a corresponding steel wire rope member according to the position of the installation suspension point and the position of the connection point further includes:

[0017] Calculate the straight-line distance between the installation hanging point and the connection point;

[0018] A steel wire rope member of corresponding length is selected according to the straight-line distance.

[0019] In one embodiment, the connecting the installation suspension point and the connection point through the steel wire rope member further comprises:

[0020] Select a section of steel wire rope, one end of which is connected to the installation suspension point;

[0021] The other end of the steel wire rope is connected to a turnbuckle bolt;

[0022] The turnbuckle bolt is connected to the connection point via a hook;

[0023] The turnbuckle bolt is adjusted to place the steel wire rope in a tensioned state.

[0024] In one embodiment, the construction method further comprises:

[0025] When the concrete construction for fixing the floor deck is completed and reaches the strength requirement, the steel wire rope member is removed.

[0026] In one embodiment, removing the steel wire rope member further comprises:

[0027] Loosening the turnbuckle bolt;

[0028] Remove the steel wire rope and the hook.

[0029] The over-span temporary support construction method for the steel truss floor deck provided by the present invention will not damage the steel beam structure, is simple to construct, will not waste labor and materials, and has high overall construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 A construction schematic diagram of the super-span temporary support construction method for the steel truss floor deck provided by the present invention;

[0032] Figure 2 A structural schematic diagram of a U-shaped member of the super-span temporary support construction method for a reinforced truss floor deck provided by the present invention.

[0033] Figure 3 A schematic diagram of the buckling of the connector and the upper steel beam of the over-span temporary support construction method of the reinforced truss floor deck provided by the present invention.

[0034] Figure 4 The present invention provides a schematic diagram of the assembly of floor decking and steel wire rope components in the method for constructing super-span temporary support for reinforced truss floor decking provided by the present invention. DETAILED DESCRIPTION

[0035] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the description of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0037] The directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front”, “back”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0038] The terms "first", "second", "third", etc. are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0039] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0040] See also Figure 1 The invention provides a method for constructing a temporary over-span support for a steel truss floor deck, comprising the following steps:

[0041] S1, determine the position of the installation hanging point on the upper steel beam 7 above the floor deck 8.

[0042] It is understandable that the above steps may further include:

[0043] S101, determining the position of the floor decking plate 8.

[0044] It can be understood that after the floor decking 8 is laid, it is laid on the lower steel beam 9 thereunder. The lower steel beam 9 can be an H-shaped steel. The spacing between the lower steel beams 9 is large, which will cause the floor decking 8 to have a larger span. The coordinate position of the floor decking 8 can be determined, and the coordinate position can be the coordinate information of each corner.

[0045] S102, selecting an installation hanging point on the upper steel beam 7, and ensuring that the installation hanging point is directly above the floor deck 8.

[0046] It is understandable that the orthographic projection of the floor decking plate 8 can cover the installation hanging point, thereby ensuring that the installation hanging point is located directly above the floor decking plate 8.

[0047] S2, determining the position of the connection point on the floor deck 8.

[0048] It is understandable that the above steps may further include:

[0049] S201, determine the positions of the two supporting points of the lower steel beam 9 on the floor deck 8.

[0050] It can be known that the floor decking 8 can be supported by at least two lower steel beams 9 , and the contact area between the two lower steel beams 9 and the floor decking 8 can be understood as a supporting point on the floor decking 8 .

[0051] S202, selecting a connection point at a position close to the middle between two support points.

[0052] It can be known that, in order to have a better supporting effect, the midpoint between two supporting points on the floor decking plate 8 can be selected as much as possible.

[0053] S3, selecting corresponding wire rope components according to the positions of the installation suspension points and the connection points.

[0054] It is understandable that the above steps may further include:

[0055] S301, calculating the straight-line distance between the installation hanging point and the connection point;

[0056] S302, selecting a steel wire rope component of corresponding length according to the straight-line distance,

[0057] It can be understood that, in the initial state, the overall length of the wire rope component can be slightly greater than the straight-line distance, and the initial state can be that the basket screw 5 is in the longest state.

[0058] See also Figures 2 to 4 , S4, the installation lifting points and connection points are connected by wire rope components.

[0059] It is understandable that the above steps may further include:

[0060] S401, select a section of wire rope, and connect one end of the wire rope 4 to the installation hanging point.

[0061] It can be understood that the sum of the length of the wire rope 4 plus the length of the basket bolt 5 and the hook 6 is slightly greater than the straight-line distance between the installation suspension point and the connection point. The wire rope 4 may include a shackle 2, a rope body and a connector 1. The connector 1 may include two U-shaped parts 101. After the two U-shaped parts 101 are connected, a non-closed loop structure with a gap will be formed. The two U-shaped parts 101 are connected by the shackle 2 to be clamped on the lower flange of the upper steel beam 7. The rope body may be connected to the shackle 2 through a rope clamp 3.

[0062] S402, the other end of the steel wire rope 4 is connected to the turnbuckle bolt 5.

[0063] It is understandable that the steel wire rope 4 may also be connected to one end of the turnbuckle bolt 5 via the rope clamp 3 .

[0064] S403, the turnbuckle bolt 5 is connected to the connection point via the hook 6.

[0065] It is understandable that the hook 6 can also be connected to the lower flange of the lower steel beam 9.

[0066] S404, adjust the turnbuckle bolt 5 so that the wire rope 4 is in a tensioned state.

[0067] It can be understood that the tensioned state can be understood as the steel wire rope 5 providing a supporting force acting on the floor deck 8.

[0068] S5, when the concrete construction for fixing the floor deck 8 is completed and reaches the strength requirement, the steel wire rope member is removed;

[0069] The above-mentioned removal step may further include:

[0070] S501, loosen the turnbuckle bolt 5;

[0071] S502, remove the wire rope 4 and the hook 6.

[0072] It is understandable that after loosening the turnbuckle 5, the shackle 2 and the hook 6 are more convenient to disassemble.

[0073] From the above description, it can be known that the super-span temporary support construction method of the steel truss floor deck provided by the present invention will not damage the steel beam structure, the construction is simple, no labor and materials will be wasted, and the overall construction efficiency is high.

[0074] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A method for constructing super-span temporary support for steel truss floor decks, characterized in that: The steps include: Determine the location of the installation hanging point on the upper steel beam above the floor deck; Determining the location of the connection point on the floor deck; Selecting a corresponding wire rope component according to the position of the installation suspension point and the position of the connection point; The installation suspension point and the connection point are connected by the steel wire rope member.

2. The method for constructing super-span temporary support for steel truss floor decks according to claim 1, characterized in that: The step of determining the position of the installation hanging point on the upper steel beam above the floor deck further comprises: Determining the position of the floor deck; Select an installation hanging point on the upper steel beam, and ensure that the installation hanging point is directly above the floor deck.

3. The method for constructing super-span temporary support for steel truss floor decks according to claim 1, characterized in that: The step of determining the position of the connection point on the floor deck further comprises: Determine the positions of the two supporting points of the lower steel beam on the floor deck; Select a connection point approximately halfway between the two support points.

4. The method for constructing super-span temporary support for steel truss floor decks according to claim 1, characterized in that: The selecting a corresponding steel wire rope member according to the position of the installation suspension point and the position of the connection point further includes: Calculate the straight-line distance between the installation hanging point and the connection point; A steel wire rope member of corresponding length is selected according to the straight-line distance.

5. The method for constructing super-span temporary support for steel truss floor decks according to claim 1, characterized in that: The method of connecting the installation suspension point and the connection point through the steel wire rope member further comprises: Select a section of steel wire rope, one end of which is connected to the installation suspension point; The other end of the steel wire rope is connected to a turnbuckle bolt; The turnbuckle bolt is connected to the connection point via a hook; The turnbuckle bolt is adjusted to place the steel wire rope in a tensioned state.

6. The method for constructing super-span temporary support for steel truss floor decks as claimed in claim 5, characterized in that: The construction method also includes: When the concrete construction for fixing the floor deck is completed and reaches the strength requirement, the steel wire rope member is removed.

7. The method for constructing super-span temporary support for steel truss floor decks according to claim 6, characterized in that: The removing of the steel wire rope member further comprises: Loosening the turnbuckle bolt; Remove the steel wire rope and the hook.

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