A connecting structural member and method for inner-filled cold-bent thin-walled steel wall and steel frame

Abstract

The present invention discloses a connecting structural member and method for an inner-filled cold-bent thin-walled steel wall and a steel frame. The invention connects a connecting steel plate and a U-shaped steel, connects the connecting steel plate and the steel frame, and connects the U-shaped steel and the inner-filled cold-bent thin-walled steel wall by connecting angle steels. In a steel frame infill wall, the connection structure has a great influence on the coordinated work between the infill wall and the frame. This connection form can meet both the bearing capacity requirements and the deformation requirements. The connection structure enables the cold-bent thin-walled steel composite wall and the modular steel frame to have good coordinated work performance, and compared with a pure modular steel frame, its bearing capacity and lateral stiffness are significantly improved. The present invention solves the connection problem between a cold-bent thin-walled steel composite wall and a steel frame. The device has a clear force transmission path and is convenient to construct, and is an ideal connection method.

Description

[Technical field]

[0001] The invention belongs to the field of modular steel structure buildings, and in particular relates to a connecting structural member and a method for an inner-filled cold-bent thin-wall steel wall and a steel frame. [Background technology]

[0002] Modular steel structure buildings refer to buildings that are divided according to the functions of the house, and one or more functions are combined in one module. The division process needs to consider the requirements of size, function and transportation, and the modular unit frame, wall panels, floor slabs, ceiling and indoor furniture are installed in the factory, and then arranged, connected and decorated on site. Modular steel structure buildings have flexible space layout, high degree of prefabrication, short construction period, green and environmental protection, and can achieve highly integrated technology.

[0003] The steel frame system with internally filled cold-formed thin-walled steel composite walls is a new type of structural system produced in the application process of cold-formed thin-walled steel residential structures. Currently, there is little research on this structural system at home and abroad. [Summary of the invention]

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a connecting structural member and method for an inner-filled cold-bent thin-walled steel wall and a steel frame, so as to solve the problem in the prior art of lack of application of an inner-filled cold-bent thin-walled steel composite wall frame system in steel residential structures.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A connecting structural member for an inner-filled cold-bent thin-wall steel wall and a steel frame, comprising a connecting steel plate, the connecting steel plate being connected to a connecting angle steel, and the connecting angle steel being connected to a U-shaped steel;

[0007] The connecting steel plate is connected to the steel frame, and the U-shaped steel is connected to the inner-filled cold-bent thin-walled steel wall.

[0008] A further improvement of the present invention is:

[0009] Preferably, the connecting angle steel comprises a first connecting plate and a second connecting plate which are perpendicular to each other, and one side edge of the first connecting plate and one side edge of the second connecting plate are integrally connected.

[0010] Preferably, the first connecting plate is connected to the connecting steel plate.

[0011] Preferably, the first connecting plate and the connecting steel plate are connected by a plurality of high-strength bolts.

[0012] Preferably, the distances between adjacent high-strength bolts are equal.

[0013] Preferably, the second connecting plate is connected to the U-shaped steel.

[0014] Preferably, the U-shaped steel comprises a middle plate and side plates which are perpendicular to each other, and a side plate is connected to each side of the middle plate; the middle plate and the second connecting plate are connected by a plurality of self-tapping screws.

[0015] Preferably, the distances between adjacent self-tapping screws are equal.

[0016] A method for connecting a cold-bent thin-walled steel wall filled with a connecting structure as described above to a steel frame comprises the following steps:

[0017] Step 1, connecting the connecting steel plate and the steel frame;

[0018] Step 2, connecting the steel plates and the angle steels by high-strength bolts;

[0019] Step 3, connect the angle steel and U-shaped steel by self-tapping screws.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention discloses a connecting structure for an inner-filled cold-bent thin-walled steel wall and a steel frame. The invention connects a connecting steel plate and a U-shaped steel, connects the connecting steel plate and the steel frame, and connects the U-shaped steel and the inner-filled cold-bent thin-walled steel wall by connecting angle steel. In a steel frame infill wall, the connection structure has a great influence on the coordinated work between the infill wall and the frame. The finite element numerical simulation results show that it is a reasonable connection form to adopt the form of steel plate plus angle steel, and require bolts and self-tapping screws to be set at a certain distance to ensure a reliable connection between the frame and the cold-bent steel wall. This connection form can meet both the requirements of bearing capacity and the requirements of deformation. The connection structure enables the cold-bent thin-walled steel composite wall and the modular steel frame to have good coordinated working performance, and compared with the pure modular steel frame, its bearing capacity and lateral stiffness are significantly improved. The present invention solves the connection problem between the cold-bent thin-walled steel composite wall and the steel frame. The device has a clear force transmission path and is convenient to construct, and is an ideal connection method.

[0022] Furthermore, the connecting steel plates and the connecting angle steels are provided with bolt holes for fixing the connecting steel plates and the connecting angle steels, and the self-tapping screws are used for connecting the U-shaped steels and the connecting angle steels.

[0023] The present invention also discloses a method for connecting an inner-filled cold-bent thin-walled steel wall to a steel frame, wherein the connecting steel plate is first connected to the steel frame, the connecting steel plate is then connected to the connecting angle steel by high-strength bolts, and finally the connecting angle steel and the U-shaped steel are connected by self-tapping screws. The connection structure uses high-strength bolts and self-tapping screws to connect the cold-bent thin-walled steel composite wall to the modular steel frame at the construction site, has a fast construction speed, a high degree of assembly, and the composite wall is easy to disassemble and update after being damaged by an earthquake.

Brief Description of the Drawings

[0024] Figure 1 It is a front view of the connecting structure of the present invention;

[0025] Figure 2 is a side view of the connecting structure of the present invention;

[0026] Figure 3 It is a front view of the connecting angle steel of the present invention;

[0027] Figure 4 It is a side view of the connecting angle steel of the present invention;

[0028] Figure 5 It is a front view of the connecting steel plate of the present invention;

[0029] Figure 6 It is a side view of the connecting steel plates of the present invention;

[0030] Figure 7 This is a front view of the cold-bent thin-walled steel wall body filled with the present invention when it is connected to the steel frame;

[0031] Figure 8 It is a cross-sectional view of section 1-1 when the inner-filled cold-bent thin-walled steel wall is connected to the steel frame of the present invention;

[0032] Fig. 9 It is a cross-sectional view of section 2-2 when the inner-filled cold-bent thin-walled steel wall is connected to the steel frame of the present invention;

[0033] Among them: 1-connecting steel plate; 2-connecting angle steel; 3-high-strength bolts; 4-self-tapping screws; 5-U-shaped steel; 6-frame column; 7-frame beam; 8-first bolt hole; 9-second bolt hole; 2-1-first connecting plate; 2-2-second connecting plate; 5-1-middle plate; 5-2-side plate. [Specific implementation method]

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0035] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, 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, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] See also Figure 1 and Figure 2 The present invention discloses a connecting structural member and method for an inner-filled cold-bent thin-walled steel wall and a steel frame, the structural member is composed of a connecting steel plate 1, a connecting angle steel 2, a U-shaped steel 5, a high-strength bolt 3 and a self-tapping screw 4. The connecting angle steel 2 includes two mutually perpendicular connecting plates, the edges of the two mutually perpendicular connecting plates are integrally connected, and the two mutually perpendicular connecting plates are respectively a first connecting plate 2-1 and a second connecting plate 2-2; the first connecting plate 2-1 and the connecting steel plate 1 are connected by a plurality of high-strength bolts 3, and the second connecting plate 2-2 is connected to the U-shaped steel 5 by self-tapping screws 4. The U-shaped steel 5 includes a middle plate 5-1 and two side plates 5-2, one edge of the two side plates 5-2 is integrally connected to the two sides of a middle plate 5-1 respectively, the middle plate 5-1 is perpendicular to the two side edges 5-2, and the second connecting plate 2-2 is connected to the middle plate 5-1 by self-tapping screws.

[0037] See 5 and Figure 6 A row of first bolt holes 8 are provided on the connecting steel plate 5. The first bolt holes 8 are provided to allow the high-strength bolts 3 to pass through. The distances between adjacent first bolt holes 8 are equal. Figure 3 and Figure 4 A row of second bolt holes 9 is provided on the first connecting plate 2-1 connecting the angle steel 2, and the distances between adjacent first bolt holes 8 are equal; each first bolt hole 8 corresponds to a second bolt hole 9, and a first bolt hole 8 and a second bolt hole 9 correspond one to one, for passing a high-strength bolt 3, and after the high-strength bolt 3 passes through the first bolt hole 8 and the second bolt hole 9, it is fixed by a nut.

[0038] See also Figure 1 and Figure 2The self-tapping screws 4 are used to connect the U-shaped steel 5 and the second connecting plate 2-2 connecting the angle steel 2.

[0039] See also Figure 7 , Figure 8 and Fig. 9 , the connection method of the connecting piece in the present invention is:

[0040] Step 1, connecting the upper end of the connecting steel plate 1 to a steel frame, wherein the steel frame includes a frame beam and a frame column;

[0041] Step 2, connecting the connecting steel plate 1 and the first connecting plate 2-1 by using a plurality of high-strength bolts 3;

[0042] Step 3, connecting the second connecting plate 2-2 and the U-shaped steel 5 by means of self-tapping screws 4, wherein the U-shaped steel 5 is connected to an inner-filled cold-bent thin-walled steel wall.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A connecting structural member between an inner-filled cold-bent thin-walled steel wall and a steel frame, characterized in that: It comprises a connecting steel plate (1), the connecting steel plate (1) is connected to a connecting angle steel (2), and the connecting angle steel (2) is connected to a U-shaped steel (5); The connecting steel plate (1) is connected to the steel frame, and the U-shaped steel (5) is connected to the inner-filled cold-bent thin-walled steel wall; The connecting angle steel (2) comprises a first connecting plate (2-1) and a second connecting plate (2-2) which are perpendicular to each other, and a side edge of the first connecting plate (2-1) and a side edge of the second connecting plate (2-2) are integrally connected; The first connecting plate (2-1) is connected to the connecting steel plate (1); The second connecting plate (2-2) is connected to the U-shaped steel (5); The U-shaped steel (5) comprises a middle plate (5-1) and side plates (5-2) which are perpendicular to each other, and a side plate (5-2) is connected to each side of the middle plate (5-1). The middle plate (5-1) and the second connecting plate (2-2) are connected by a plurality of self-tapping screws (4). The distances between adjacent self-tapping screws (4) are equal.

2. The connecting structural member of the inner-filled cold-bent thin-walled steel wall and the steel frame according to claim 1, characterized in that: The first connecting plate (2-1) and the connecting steel plate (1) are connected via a plurality of high-strength bolts (3).

3. The connecting structural member of the inner-filled cold-bent thin-walled steel wall and the steel frame according to claim 2, characterized in that: The distances between adjacent high-strength bolts (3) are equal.

4. A method for connecting a cold-bent thin-walled steel wall and a steel frame by means of a connecting structure as claimed in any one of claims 1 to 3, characterized in that: The following steps are involved: Step 1, connecting the connecting steel plate (1) and the steel frame; Step 2, connecting the connecting steel plate (1) and the connecting angle steel (2) by means of high-strength bolts (3); Step 3: Connect the angle steel (2) and the U-shaped steel (5) using self-tapping screws (4).

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