Σ-shaped column cold-bent thin-walled steel integral bathroom and its connection structure with the main structural column

Abstract

The present invention belongs to the technical field of steel structure, and is specifically applicable to a Σ-shaped column cold-bent thin-walled steel integrated bathroom and its connection structure with the main structure column. The integrated bathroom is formed by connecting the Σ-shaped cold-bent thin-walled steel column wall on four sides with angle steel and self-tapping screws, and the assembled integrated bathroom is connected with the connecting piece fixed to the main structure column in advance. The side of the main structure column is installed with a connecting piece by screws, and the Σ-shaped cold-bent thin-walled steel column wall is plug-fitted with the connecting piece on one side of the main structure column through the side column, and the plug-fitting structure is formed between the inner surface of the side column of the Σ-shaped cold-bent thin-walled steel column wall and the outer surface of the connecting piece. The present invention replaces the wall in the traditional integrated bathroom with a Σ-shaped cold-bent thin-walled steel column wall, and the column of the Σ-shaped cold-bent thin-walled steel column wall adopts a Σ-shaped cross-section. This Σ-shaped cold-bent thin-walled steel column wall can greatly improve the rigidity, strength and stability of the integrated bathroom.

Description

Technical Field

[0001] The present invention belongs to the technical field of steel structures, and in particular is a cold-bent thin-walled steel integral bathroom applicable to Σ-shaped columns and a connection structure thereof with a main structural column. Background Art

[0002] Steel structure houses have obvious advantages such as light weight, high space utilization, good earthquake resistance, and convenient industrial production, which meet the needs of building an ecological civilization society. Prefabricated steel structure houses are increasingly used in the domestic market. In the promotion and application of prefabricated steel structure buildings, the integration of interior decoration is one of its important contents. In the integration of steel structure decoration, the overall bathroom has become the object of people's attention due to its huge advantages.

[0003] The integrated bathroom, with its independent supporting overall frame structure, not only provides a complete set of sanitary unit functions, realizing functions such as washing, toileting, and bathing in a limited space, but can also be installed in any environment according to the needs of use. Compared with traditional residential bathrooms, the integrated bathroom has huge advantages. The integrated bathroom can not only be standardized in production, save space, have good waterproof effect, and be easy to maintain and maintain, but also easy to construct and install, and has good environmental benefits.

[0004] At present, the overall bathroom mainly uses composite materials such as SMC, FRP, ABS, etc., which have the advantages of overall beauty, easy cleaning, thermal insulation, and low formaldehyde release. However, its strength is not high and it is not connected to the main structure, making it unable to bear excessive loads when an earthquake occurs, resulting in collapse and overturning.

[0005] In the entire building code of our country, there is no clear standard for the connection form between the overall bathroom and the main structure. Therefore, establishing a reasonable connection form between the overall bathroom and the main structure is of great significance to ensure the overall safety performance of the structure and the normal use of the bathroom.

[0006] In the construction industry, the use of C-shaped steel is indispensable. C-shaped steel is often seen in house construction because it is not only strong but also stable. In the same application, compared with the aluminum alloy used before, C-shaped steel not only has the advantages of unique shape and reduced usage, but also has good environmental protection. C-shaped steel is widely used in purlins and wall beams of steel structure buildings, and can also be combined into lightweight roof trusses, brackets and other building components. In addition, it can also be used for columns, beams and arms in mechanical light industry manufacturing.

[0007] However, a common problem encountered during use is that C-shaped steel will rebound after bending. As an important process in the processing of C-shaped steel, cold bending is the key to the formation of C-shaped steel. Although the material needs to be corrected after cold bending, the material will still be severely deformed after a period of time. This shows that there is a lot of internal stress in the C-shaped steel, which causes a lot of rebound after bending. Summary of the invention

[0008] The purpose of the present invention is to provide an integrated bathroom with cold-bent thin-walled steel suitable for Σ-shaped columns and a connection structure with the main structural columns. The cold-bent thin-walled steel can make full use of the strength of steel and save steel. It has the advantages of light weight, high strength, good seismic resistance, energy saving and environmental protection, and is widely used in light steel structures.

[0009] In order to achieve the above object, the technical solution of the present invention is:

[0010] A Σ-shaped column cold-bent thin-walled steel integral bathroom, which is formed by connecting four Σ-shaped cold-bent thin-walled steel column walls with angle steel and self-tapping screws, and the assembled integral bathroom is connected to a connecting piece fixed to the main structure column in advance;

[0011] Among them, the four Σ-shaped cold-bent thin-walled steel column walls are wall A, wall B, wall C, and wall D respectively. Each Σ-shaped cold-bent thin-walled steel column wall includes side columns, middle columns, beams, and screws. The specific structure is as follows: the beams are arranged in two groups in parallel and opposite to each other, each group consists of two beams arranged in parallel and opposite to each other, side columns are arranged vertically at both ends between the upper and lower groups of parallel and oppositely arranged beams, and middle columns are arranged vertically in the middle between the upper and lower groups of parallel and oppositely arranged beams to form a skeleton structure.

[0012] The connection between the wall A and the wall B of the Σ-shaped column cold-bent thin-walled steel integral bathroom is as follows: first, a self-tapping screw is driven into the column at one end of the wall A from the angle steel, and the outer side of one corner of the angle steel is fixed to one end of the wall A; then, one end of the wall B is pressed against the inner side of the angle steel, and a self-tapping screw is driven into the outer side of the other corner of the angle steel to one end of the wall B, so that one end of the wall B is fixed to the angle steel;

[0013] Connection between wall B and wall C: First, drive the self-tapping screw from the angle steel into the side column at the other end of wall B, and fix the outer side of one corner of the angle steel to the other end of wall B; then, place one end of wall C close to the inner side of the angle steel, and drive the self-tapping screw from the outer side of the other corner of the angle steel into one end of wall C, so that one end of wall C is fixed to the angle steel;

[0014] Connection between wall C and wall D: First, drive the self-tapping screw from the angle steel into the side column at the other end of wall C, and fix the outer side of one corner of the angle steel to the other end of wall C; then, place one end of wall D close to the inner side of the angle steel, and drive the self-tapping screw from the outer side of the other corner of the angle steel into one end of wall D, so that one end of wall D is fixed to the angle steel;

[0015] Connection between wall D and wall A: First, drive the self-tapping screw from the angle steel into the side column at the other end of wall A, and fix the outer side of one corner of the angle steel to the other end of wall A; then, place the other end of wall D close to the inner side of the angle steel, and drive the self-tapping screw from the outer side of the other corner of the angle steel into the other end of wall D, so that the other end of wall D is fixed to the angle steel.

[0016] The described Σ-shaped column cold-bent thin-walled steel integral bathroom, the side columns of the Σ-shaped cold-bent thin-walled steel column wall are arranged symmetrically with two Σ-shaped cross-section columns back to back and connected by screws, and the middle column of the Σ-shaped cold-bent thin-walled steel column wall is a Σ-shaped cross-section column.

[0017] The cold-bent thin-walled steel integral bathroom with Σ-shaped columns has two parallel ends of each Σ-shaped cross-section column provided with secondary curling edges.

[0018] The connection structure of the Σ-shaped column cold-bent thin-walled steel integrated bathroom and the main structure column, the connection between the Σ-shaped cold-bent thin-walled steel column wall and the main structure column, relies on the connecting parts fixed to the main structure column in advance; the side of the main structure column is installed with screws, the Σ-shaped cold-bent thin-walled steel column wall is plug-fitted with the connecting parts on one side of the main structure column through the side column, and a plug-in matching structure is formed between the inner surface of the side column of the Σ-shaped cold-bent thin-walled steel column wall and the outer surface of the connecting part.

[0019] The Σ-shaped column cold-bent thin-walled steel integral bathroom is connected to the main structural column, and the connecting parts installed on the main structural column are arranged at intervals along the vertical direction.

[0020] The connection structure of the Σ-shaped column cold-bent thin-walled steel integral bathroom and the main structure column, and the connection structure of the main structure column and the connecting piece are as follows:

[0021] Two bolt holes are symmetrically arranged on both sides of the main structure column, nuts are welded at positions corresponding to the reserved bolt holes two inside the main structure column, and a reserved bolt hole one is arranged at a position corresponding to the reserved bolt hole two on the connecting piece, and bolts pass through the reserved bolt hole one and the reserved bolt hole two in sequence at the connection between the connecting piece and the main structure column, and are connected and fixed with nuts; screw holes are respectively arranged on both sides of the connecting piece at positions corresponding to the side columns of the Σ-type cold-bent thin-walled steel column wall, and self-tapping screws pass through the screw holes on the side columns and the connecting piece in sequence to connect and fix.

[0022] The Σ-shaped column cold-bent thin-walled steel integral bathroom is connected to the main structure column by aligning the reserved bolt hole 1 on the connecting piece with the reserved bolt hole 2 on the main structure column. The construction worker holds the bolt and extends it into the connecting piece, inserts it from the connecting piece toward the main structure column and tightens the bolt, and the connecting piece is installed.

[0023] The Σ-shaped column cold-bent thin-walled steel integral bathroom and the main structure column connection structure, during construction, the Σ-shaped cold-bent thin-walled steel column wall is inserted into the connecting piece through the side column from above, and the inner surface of the side column of the Σ-shaped cold-bent thin-walled steel column wall is completely in contact with the outer surface of the connecting piece; screw holes are reserved at corresponding positions on the side of the side column and the connecting piece, and self-tapping screws are driven from the Σ-shaped cold-bent thin-walled steel column wall toward the connecting piece to connect and fix the Σ-shaped cold-bent thin-walled steel column wall to the connecting piece; when the integral bathroom is connected to the connecting piece, the integral bathroom is connected to the ground with bolts.

[0024] The design concept of the present invention is:

[0025] The present invention replaces the wall in the traditional integrated bathroom with a Σ-type cold-bent thin-walled steel column wall. The column of the Σ-type cold-bent thin-walled steel column wall adopts a Σ-type cross-section. This Σ-type cold-bent thin-walled steel column wall can greatly improve the rigidity, strength and stability of the integrated bathroom. The Σ-type cold-bent thin-walled steel column wall is connected to the main structure column through a special connector, so that the load of the integrated bathroom is fully transferred to the main structure when it is subjected to an earthquake, so as to ensure that the integrated bathroom will not overturn as a whole and affect the normal use function after encountering an earthquake of the fortification intensity. Pipes and wires are arranged in the plane of the Σ-type cold-bent thin-walled steel column wall, and the bathroom products are combined into a whole with the Σ-type cold-bent thin-walled steel column wall through specific measures to enhance the degree of decoration integration.

[0026] The advantages and beneficial effects of the present invention are:

[0027] 1. The integrated bathroom in the present invention adopts a cold-bent thin-walled steel structure, which has higher strength, rigidity and stability than traditional integrated bathrooms.

[0028] 2. The integrated bathroom in the present invention is connected to the main structure, and when subjected to an earthquake, all the loads are transferred to the main structure to ensure that the integrated bathroom does not overturn as a whole and affect normal use functions after encountering an earthquake of the design intensity.

[0029] 3. The wall columns in the present invention adopt a Σ-shaped cross-section. Compared with the C-shaped cross-section commonly used in the current cold-bent thin-walled steel wall keels, the Σ-shaped cross-section can greatly improve the bearing capacity of the Σ-shaped cold-bent thin-walled steel column wall without much increase in steel consumption. Therefore, a special connecting part is required that can adapt to its complex cross-sectional characteristics and meet the assembly requirements supported by national policies, so that the overall bathroom can be completely prefabricated and can be connected to the main structure on site without complex processes such as cutting and welding.

[0030] 4. The present invention is applicable to the integrated bathroom with Σ-shaped cold-bent thin-walled steel columns. The Σ-shaped columns make the integrated bathroom have excellent load-bearing performance, but their complex cross-section makes node connection more difficult. This invention includes connectors for this complex new cross-section. The connectors are connected by bolts, and the nut welding process is carried out in the early processing process. Only assembly is required at the construction site, which is convenient and fast, reflecting the advantages of prefabricated structures, and there is no need to consider issues such as welding quality and residual stress. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is the overall bathroom floor plan.

[0032] Figure 2 for Figure 1 Enlarged view of point M in .

[0033] Figure 3 for Figure 1 Enlarged view of point N in .

[0034] Figure 4 Floor plan for full bath connection.

[0035] Figure 5 Split diagram for full bathroom connections.

[0036] Figure 6 for Figure 5 Enlarged view of point P in .

[0037] Figure 7 This is a three-dimensional diagram of the connecting parts.

[0038] Figure 8 This is a diagram of the connector being split.

[0039] Fig. 9 This is a schematic diagram of a Σ-type cold-bent thin-walled steel column wall.

[0040] Fig.10 Schematic diagram of a Σ-shaped cross-section column.

[0041] In the figure, 1 is a connector; 2 is a main structural column; 3 is a Σ-shaped cold-bent thin-walled steel column wall; 31 is a wall A; 32 is a wall B; 33 is a wall C; 34 is a wall D; 35 is a side column; 36 is an intermediate column; 37 is a crossbeam; 38 is a screw; 4 is a reserved bolt hole 1; 4′ is a reserved bolt hole 2; 5 is a screw hole; 6 is a Σ-shaped section column; 61 is a secondary curling; 7 is an angle steel; 8 is a bolt. DETAILED DESCRIPTION

[0042] like Figure 1-Figure 10 As shown, the Σ-type cold-bent thin-walled steel column integrated bathroom of the present invention is formed by connecting the Σ-type cold-bent thin-walled steel column wall 3 on four sides with angle steel 7 and self-tapping screws, and the assembled integrated bathroom is connected to the connecting piece 1 fixed in advance to the main structure column 2 (steel structure box frame column). The side columns 35 of the Σ-type cold-bent thin-walled steel column wall 3 are arranged symmetrically back to back with two Σ-shaped cross-section columns 6 and connected by screws. The middle column 36 of the Σ-type cold-bent thin-walled steel column wall 3 is a Σ-shaped cross-section column 6, and the two parallel ends of each Σ-shaped cross-section column 6 are provided with secondary curling 61. The connection between the Σ-type cold-bent thin-walled steel column wall 3 and the main structure column 2 relies on the connecting piece 1 fixed in advance to the main structure column 2.

[0043] like Figure 1-Figure 3 , Figure 9-10 As shown, the four Σ-shaped cold-bent thin-walled steel column walls 3 are wall A31, wall B32, wall C33, and wall D34 respectively. Each Σ-shaped cold-bent thin-walled steel column wall 3 includes side columns 35, middle columns 36, beams 37, screws 38, etc. The specific structure is as follows: the beams 37 are arranged in parallel and opposite to each other in two groups, each group consists of two beams arranged in parallel and opposite to each other, and side columns 35 are arranged vertically at both ends between the upper and lower groups of parallel and opposite beams, and middle columns 36 are arranged vertically in the middle between the upper and lower groups of parallel and opposite beams. The beams 37 are connected and fixed to the side columns 35 and the middle columns 36 by screws 38 to form a skeleton structure.

[0044] like Figure 4-Figure 6 As shown, the connection structure of the Σ-type column cold-bent thin-walled steel integrated bathroom and the main structure column of the present invention is as follows: the connecting parts 1 are symmetrically installed on both sides of the main structure column 2 by screws, and the Σ-type cold-bent thin-walled steel column wall 3 is plug-fitted with the connecting part 1 on one side of the main structure column 2 through the side column 35, and a plug-in fitting structure is formed between the inner surface of the side column 35 of the Σ-type cold-bent thin-walled steel column wall 3 and the outer surface of the connecting part 1.

[0045] like Figure 7-Figure 8 As shown, the connection structure between the main structure column 2 and the connecting member 1 of the present invention is as follows:

[0046] Bolt holes 2 4' are symmetrically arranged on both sides of the main structure column 2, nuts are welded at the positions corresponding to the reserved bolt holes 2 4' inside the main structure column 2, reserved bolt holes 1 4 are arranged at the positions corresponding to the reserved bolt holes 2 4' on the connector 1, and bolts 8 pass through the reserved bolt holes 1 4 and the reserved bolt holes 2 4' in sequence at the connection between the connector 1 and the main structure column 2, and are connected and fixed with nuts. Screw holes 5 are arranged at the positions corresponding to the side columns 35 of the Σ-type cold-bent thin-walled steel column wall 3 on both sides of the connector 1, and self-tapping screws pass through the side columns 35 and the screw holes 5 on the connector 1 in sequence to connect and fix.

[0047] The construction method of the connection between the main structure column 2 and the connector 1 is as follows: the reserved bolt hole 1 4 on the connector 1 is aligned with the reserved bolt hole 2 4' on the main structure column 2, and the construction personnel hold the bolt 8 and extend it into the connector 1, insert the bolt from the connector 1 to the main structure column 2 and tighten the bolt, and the connector 1 is installed. Note: The connectors can be arranged along the vertical spacing, and the specific number is determined according to the load calculation.

[0048] During construction, the Σ-shaped cold-bent thin-walled steel column wall 3 is inserted into the connector 1 from above through the side column 35, and the inner surface of the side column 35 of the Σ-shaped cold-bent thin-walled steel column wall 3 is completely in contact with the outer surface of the connector 1; the secondary curling edge 61 of the Σ-shaped cross-section column 6 is hooked with the connector 1 to fix it. Screw holes 5 are reserved at the corresponding positions on the side where the side column 35 and the connector 1 cooperate, and self-tapping screws are used to drive from the Σ-shaped cold-bent thin-walled steel column wall 3 to the connector 1, so that the Σ-shaped cold-bent thin-walled steel column wall 3 is connected and fixed to the connector 1; when the integrated bathroom is connected to the connector 1, the integrated bathroom is connected to the ground with bolts.

[0049] like Figure 1 , Figure 2 As shown, take the connection between wall A31 and wall B32 as an example: first, drive the self-tapping screw from angle steel 7 into the side column 35 at one end of wall A31, and fix the outer side of one corner of angle steel 7 to one end of wall A31; then, place one end of wall B32 close to the inner side of angle steel 7, and drive the self-tapping screw from the outer side of the other corner of angle steel 7 into one end of wall B32, so that one end of wall B32 is fixed to angle steel 7. Figure 1 , Figure 3 As shown, taking the connection between wall B32 and wall C33 as an example: first, drive a self-tapping screw from angle steel 7 into the other end side column 35 of wall B32 to fix the outer side of one corner of angle steel 7 to the other end of wall B32; then, place one end of wall C33 close to the inner side of angle steel 7, and drive a self-tapping screw from the outer side of the other corner of angle steel 7 into one end of wall C33 to fix one end of wall C33 to angle steel 7.

[0050] In addition, the connection between wall C33 and wall D34: first, drive the self-tapping screw from angle steel 7 into the side column 35 at the other end of wall C33 to fix the outer side of one corner of angle steel 7 to the other end of wall C33; then, place one end of wall D34 close to the inner side of angle steel 7, and drive the self-tapping screw from the outer side of the other corner of angle steel 7 into one end of wall D34 to fix one end of wall D34 to angle steel 7. The connection between wall D34 and wall A31: first, drive the self-tapping screw from angle steel 7 into the side column 35 at the other end of wall A31 to fix the outer side of one corner of angle steel 7 to the other end of wall A31; then, place the other end of wall D34 close to the inner side of angle steel 7, and drive the self-tapping screw from the outer side of the other corner of angle steel 7 into the other end of wall D34 to fix the other end of wall D34 to angle steel 7.

Claims

1. A Σ-shaped column cold-bent thin-walled steel integral bathroom, characterized in that: The four-sided Σ-shaped cold-bent thin-walled steel column wall is connected with angle steel and self-tapping screws. The assembled whole bathroom is connected with the connectors fixed to the main structure column in advance. Among them, the Σ-shaped cold-bent thin-walled steel column walls on the four sides are wall A, wall B, wall C, and wall D respectively. Each Σ-shaped cold-bent thin-walled steel column wall includes side columns, middle columns, beams, and screws. The specific structure is as follows: the beams are arranged in two groups in parallel and opposite to each other, each group consists of two beams arranged in parallel and opposite to each other, side columns are arranged vertically at both ends between the two groups of parallel and opposite beams, and middle columns are arranged vertically in the middle between the two groups of parallel and opposite beams to form a skeleton structure; Connection between wall A and wall B: First, drive the self-tapping screw from the angle steel into the side column at one end of wall A, and fix the outer side of one corner of the angle steel to one end of wall A; then, place one end of wall B close to the inner side of the angle steel, and drive the self-tapping screw from the outer side of the other corner of the angle steel into one end of wall B, so that one end of wall B is fixed to the angle steel; Connection between wall B and wall C: First, drive the self-tapping screw from the angle steel into the side column at the other end of wall B, and fix the outer side of one corner of the angle steel to the other end of wall B; then, place one end of wall C close to the inner side of the angle steel, and drive the self-tapping screw from the outer side of the other corner of the angle steel into one end of wall C, so that one end of wall C is fixed to the angle steel; Connection between wall C and wall D: First, drive the self-tapping screw from the angle steel into the side column at the other end of wall C, and fix the outer side of one corner of the angle steel to the other end of wall C; then, place one end of wall D close to the inner side of the angle steel, and drive the self-tapping screw from the outer side of the other corner of the angle steel into one end of wall D, so that one end of wall D is fixed to the angle steel; Connection between wall D and wall A: First, drive the self-tapping screw from the angle steel into the side column at the other end of wall A, and fix the outer side of one corner of the angle steel to the other end of wall A; then, place the other end of wall D close to the inner side of the angle steel, and drive the self-tapping screw from the outer side of the other corner of the angle steel into the other end of wall D, so that the other end of wall D is fixed to the angle steel; The side columns of the Σ-shaped cold-formed thin-walled steel column wall are arranged symmetrically with two Σ-shaped cross-section columns back to back and connected by screws, and the middle column of the Σ-shaped cold-formed thin-walled steel column wall is one Σ-shaped cross-section column; Two parallel ends of each Σ-shaped cross-section column are provided with secondary curling edges.

2. A connection structure between a Σ-shaped column cold-bent thin-walled steel integral bathroom and a main structural column as claimed in claim 1, characterized in that: The connection between the Σ-type cold-formed thin-walled steel column wall and the main structure column relies on the connectors fixed to the main structure column in advance; the connectors are installed on the side of the main structure column by screws, and the Σ-type cold-formed thin-walled steel column wall is plug-fitted with the connectors on one side of the main structure column through the side columns, and a plug-in fitting structure is formed between the inner surface of the side column of the Σ-type cold-formed thin-walled steel column wall and the outer surface of the connector.

3. The connection structure of the Σ-shaped column cold-bent thin-walled steel integral bathroom and the main structural column according to claim 2 is characterized in that: The connectors installed on the main structure columns are arranged at vertical intervals.

4. The connection structure of the Σ-shaped column cold-bent thin-walled steel integral bathroom and the main structural column according to claim 2 is characterized in that: The connection structure between the main structure column and the connector is as follows: Two bolt holes are symmetrically arranged on both sides of the main structure column, nuts are welded at positions corresponding to the reserved bolt holes two inside the main structure column, and a reserved bolt hole one is arranged at a position corresponding to the reserved bolt hole two on the connecting piece, and bolts pass through the reserved bolt hole one and the reserved bolt hole two in sequence at the connection between the connecting piece and the main structure column, and are connected and fixed with nuts; screw holes are respectively arranged on both sides of the connecting piece at positions corresponding to the side columns of the Σ-type cold-bent thin-walled steel column wall, and self-tapping screws pass through the screw holes on the side columns and the connecting piece in sequence to connect and fix.

5. The connection structure of the Σ-shaped column cold-bent thin-walled steel integral bathroom and the main structural column according to claim 4 is characterized in that: Align the reserved bolt hole 1 on the connecting piece with the reserved bolt hole 2 on the main structure column. The construction worker holds the bolt and inserts it into the connecting piece, inserts it from the connecting piece toward the main structure column and tightens the bolt. The installation of the connecting piece is completed.

6. The connection structure of the Σ-shaped column cold-bent thin-walled steel integral bathroom and the main structural column according to claim 2 is characterized in that: During construction, the Σ-type cold-bent thin-walled steel column wall is inserted into the connecting piece through the side column from above, and the inner surface of the side column of the Σ-type cold-bent thin-walled steel column wall is completely in contact with the outer surface of the connecting piece; screw holes are reserved at the corresponding positions on the sides of the side columns and the connecting pieces, and self-tapping screws are driven from the Σ-type cold-bent thin-walled steel column wall toward the connecting piece to connect and fix the Σ-type cold-bent thin-walled steel column wall to the connecting piece; after the overall bathroom is connected to the connecting piece, the overall bathroom is connected to the ground with bolts.

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