CN107587603B - Assembly type light steel structure and mounting method thereof - Google Patents
Assembly type light steel structure and mounting method thereof Download PDFInfo
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- CN107587603B CN107587603B CN201610537777.0A CN201610537777A CN107587603B CN 107587603 B CN107587603 B CN 107587603B CN 201610537777 A CN201610537777 A CN 201610537777A CN 107587603 B CN107587603 B CN 107587603B
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Abstract
The invention discloses an assembly type light steel structure and an installation method thereof, wherein the assembly type light steel structure comprises the following components: the floor slab module comprises a single-hole column, a double-hole column, a three-hole column, a four-hole column and a floor slab module; the single-hole column is a square light steel hollow column and comprises a first square column and a single-hole column end plate which are connected; the double-hole column is a rectangular light steel hollow column and comprises a rectangular column and a double-hole column end plate which are connected; the three-hole column is an L-shaped light steel hollow column and comprises an L-shaped column and a three-hole column end plate which are connected; the four-hole column is a square light steel hollow column and comprises a second square column and a four-hole column end plate which are connected; the floor slab module includes: tenons and light steel truss girders; the tenon is respectively connected with the single-hole column, the double-hole column, the three-hole column and the four-hole column. The invention can improve the installation speed, reduce the construction period and reduce the cost.
Description
Technical Field
The invention relates to the technical field of structural engineering and building industrialization, in particular to an assembled light steel structure and an installation method thereof.
Background
The assembly type building is an inevitable choice for realizing novel building industrialization, not only can promote building industrialization, realize energy conservation and emission reduction, promote green and safe construction, improve engineering quality, but also can improve human living environment and promote industrial structure upgrading.
The prefabricated house is installed on site by adopting standardized components prefabricated in factories. At present, the prefabricated building is used more and more, however, most of the existing prefabricated buildings adopt a steel structure frame and concrete precast slab system or a thin-wall light steel multi-ribbed keel composite structure system, the assembly degree is low, the self weight of concrete materials is large, the workload of the light steel multi-ribbed keel composite structure is generally large, and meanwhile, the installation mode is single and the installation process is complex.
Disclosure of Invention
The present invention is directed to a fabricated light steel structure and a method for installing the same, which solve the above problems of the prior art.
In order to solve the above problem, there is provided a fabricated light steel structure according to an embodiment of the present invention, including: the device comprises a single-hole column (1), a double-hole column (2), a three-hole column (3), a four-hole column (4) and a floor slab module (7); the single-hole column (1) is a square light steel hollow column, and the single-hole column (1) comprises a first square column (101) and a single-hole column end plate (102) which are connected with each other; the double-hole column (2) is a rectangular light steel hollow column, and the double-hole column (2) comprises a rectangular column (201) and a double-hole column end plate (202) which are connected; the three-hole column (3) is an L-shaped light steel hollow column, and the three-hole column (3) comprises an L-shaped column (301) and a three-hole column end plate (302) which are connected with each other; the four-hole column (4) is a square light steel hollow column, and the four-hole column (4) comprises a second square column (401) and a four-hole column end plate (402) which are connected with each other; the floor module (7) comprises: a tenon (5) and a light steel truss girder (6); the tenon (5) is respectively connected with the single-hole column (1), the double-hole column (2), the three-hole column (3) and the four-hole column (4).
The first square column (101) is a light steel hollow square pipe, and four faces of each end part at two ends of the first square column (101) are provided with a plurality of reserved holes; the single-hole column end plate (102) comprises a ribbed plate and a bottom steel plate which are connected, and the single-hole column end plate (102) bears the vertical downward pressure of the tenon (5).
The rectangular column (201) is a light steel hollow rectangular tube, four faces of each end part of two ends of the rectangular column (201) are provided with a plurality of reserved holes, and a seam is formed in the middle of the long edge of the rectangular tube; the double-hole column end plate (202) comprises a ribbed plate, a bottom steel plate and a linear partition plate which are connected; the rectangular column (201) is divided into two square cavities with the same size by the straight-line-shaped partition plate; the double-hole column end plate (202) bears the vertical downward pressure of the tenon (5).
The L-shaped column (301) is a light steel hollow L-shaped tube, six faces of each end part of two ends of the L-shaped column (301) are provided with a plurality of reserved holes, and long edges and internal corners of the L-shaped tube are provided with slits; the three-hole column end plate (302) comprises a ribbed plate, a bottom steel plate and an L-shaped partition plate which are connected; the L-shaped partition plate divides the L-shaped column (301) into three square cavities with the same size; the three-hole column end plate (302) bears the vertical downward pressure of the tenon (5).
The second square column (401) is a light steel hollow square tube, four faces of each end part of two ends of the second square column (401) are provided with a plurality of reserved holes, and a seam is formed in the middle position of each side of the square tube; the four-hole column end plate (402) comprises a ribbed plate, a bottom steel plate and a cross-shaped partition plate which are connected; the second square column (401) is divided into four square cavities with the same size by the cross-shaped partition plate; the four-hole column end plate (402) bears the vertical downward pressure of the tenon (5).
The sizes of the double-hole column (2), the three-hole column (3) and the four-hole column (4) are integral multiples of the size of the single-hole column (1).
The cross section of the single-hole column (1) is square, the cross section of the double-hole column (2) is rectangular, the cross section of the three-hole column (3) is L-shaped, and the cross section of the four-hole column (4) is square.
Wherein the tenon (5) comprises: the device comprises a square head (501), a connecting plate (502), a stiffening plate (503) and a hoisting piece (504); the connecting plate (502) is welded with the square head (501) on two sides; the stiffening plate (503) is welded with the square head (501) and the connecting plate (502) on three sides; the hoisting piece (504) is welded with the square head (501) on two sides; the light steel truss girder (6) comprises a chord member (601) and an inclined web member (602) which are connected, wherein the chord member (601) is in a U-shaped section form with a groove and an external curled edge, and the inclined web member (602) is C-shaped steel; chords (601) of four mutually vertical light steel truss girders (6) are connected with a connecting plate (502) of a tenon (5) to form an outer frame of a floor slab module (7); at least one or all of the four side surfaces of the square head (501) are connected with one or more connecting plates (502) to form an L-shaped, straight-line-shaped, T-shaped or cross-shaped connection, so that the square head is further connected with the light steel truss girders (6) in multiple directions in the floor slab module (7).
The tenon (5) is connected with the single-hole column (1), the double-hole column (2), the three-hole column (3) and the four-hole column (4) in a vertically inserting and inserting manner, and the outer diameter of the section of the tenon of the inserting column body is smaller than the inner diameter of the section of the receiving column body.
According to an embodiment of the present invention, there is also provided an installation method of an assembled light steel structure, including:
step one, embedding a basic short column, wherein the shape of the basic short column is respectively the same as that of a single-hole column (1), a double-hole column (2), a three-hole column (3) and a four-hole column (4);
step two, hoisting the bottom floor slab module (7) as a bottom plate in sequence, aligning the centers of four tenons (5) on the lower side of the floor slab module (7) with the center of the foundation short column, inserting the tenons (5) into the foundation short column, and connecting the tenons in corresponding reserved holes by using pull rivets;
step three, respectively sleeving the single-hole column (1), the double-hole column (2), the three-hole column (3) and the four-hole column (4) of the first layer into a tenon (5) on the upper side of a bottom floor slab module (7), and connecting and fixing the single-hole column, the double-hole column, the three-hole column and the four-hole column in corresponding reserved holes by using pull rivets to form connection between a floor slab and the columns so as to finish assembly of the columns of the first layer;
step four, fixing matched connecting pieces on the outer side surfaces of an upper chord member (601) and a lower chord member (601) of a light steel truss girder (6) in a floor slab module (7) and the side edges of a single-hole column (1), a double-hole column (2), a three-hole column (3) and a four-hole column (4) along the center line of a wall body respectively, hoisting prefabricated wall boards with grooves on the periphery in place in sequence, and clamping the grooves on the horizontal side edge and the lower side edge into the connecting pieces of the light steel truss girder (6) to finish the assembly of the first-layer partition wall;
hoisting the floor slab module (7) and the wallboard connecting piece of the lower chord member (601) in place, respectively inserting four tenons (5) on the lower side of the floor slab module (7) into the single-hole column (1), the double-hole column (2), the three-hole column (3) and the four-hole column (4) by utilizing gravity, and connecting and fixing the floor slab module and the wallboard connecting piece in corresponding reserved holes by using pull rivets to form connection between the floor slab and the columns; meanwhile, the connecting piece of the lower chord (601) is clamped into the groove at the upper side of the prefabricated wallboard to complete the assembly of the two-layer floor slab module (7);
and step six, repeating the steps of step three, step four and step five in sequence, thereby completing the assembly of the main structure of the multi-storey building.
According to the technical scheme, the ideas of modularization, industrialization, assembly and mortise and tenon principles are integrated into the production and construction of the assembly type light steel structure system, the industrial flow line production and the on-site rapid assembly are realized, the stress rationality of the structure system is enhanced, the installation speed is increased, the construction period is shortened, and the cost is reduced under the condition of ensuring the construction quality.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic illustration of a fabricated light steel structure according to an embodiment of the present invention;
figure 2 is a schematic diagram of a floor module construction according to an embodiment of the invention;
FIG. 3 is an exploded view of the overall structure according to an embodiment of the invention;
figure 4 is a schematic view of a floor to column connection according to an embodiment of the invention;
FIG. 5 is an exploded view of a single hole column and floor connection according to an embodiment of the present invention;
FIG. 6 is an exploded view of a dual-hole column in connection with a floor slab in accordance with an embodiment of the present invention;
FIG. 7 is an exploded view of a three-hole column in connection with a floor slab in accordance with an embodiment of the present invention;
FIG. 8 is an exploded view of a four-hole column in connection with a floor slab in accordance with an embodiment of the present invention;
FIG. 9 is an exploded view of a tenon according to an embodiment of the present invention.
[ notation ] to show
1 single-hole column 101 small square column 102 single-hole column end plate,
2 a two-hole column 201 a rectangular column 202 two-hole column end plate,
a 3 three-hole column 301L-shaped column 302 three-hole column end plate,
4 four-hole column 401 large square column 402 four-hole column end plate,
5 tenon 501 square head 502 connecting plate
503 stiffener 504 hoist and mount piece
6 the chord member 602 diagonal web member of the light steel truss girder 601,
7 floor module
8 floor to column connection
9-pulling rivet
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, a fabricated light steel structure according to an embodiment of the present invention includes: single-hole column (1), double-hole column (2), three-hole column (3), four-hole column (4), floor module (7), which is described in detail below with reference to fig. 2 to 9.
Referring to fig. 2, the floor slab module (7) is a floor slab prefabricated in a factory according to a building modulus, and the floor slab module (7) comprises a tenon (5) and a light steel truss girder (6); the light steel truss girder (6) is connected with the diagonal web members (602) through self-tapping screws or rivets by chord members (601), the chord members (601) are in a U-shaped section form with grooves and external curled edges, and the diagonal web members (602) are C-shaped steel; the upper chord member and the lower chord member (601) of the four mutually vertical light steel truss girders (6) are connected with the connecting plate (502) of the tenon (5) through self-tapping screws or rivets to form the floor slab module (7) shown in figure 2.
Referring to fig. 3 and 5, the single-hole column (1) is a square light steel hollow column prefabricated in a factory, and the single-hole column (1) comprises a small square column (namely a first square column) (101) and a single-hole column end plate (102); the small square column (101) is an empty stomach steel column which is prefabricated and formed according to the design size in the factory, the wall thickness is 2-10mm, and the four sides at the upper end and the lower end are punched according to the design; the single-hole column end plate (102) is composed of rib plates and a bottom steel plate on the periphery, and the rib plates and the bottom steel plate are connected through full welding and are used for bearing the vertical pressure of the upper tenon (5); the small square column (101) and the single-hole column end plate (102) are welded through an opening to form the single-hole column (1), and finally hot galvanizing treatment is carried out.
Referring to fig. 3 and 6, the double-hole column (2) is a rectangular light steel hollow column prefabricated in a factory, and the double-hole column (2) comprises a rectangular column (201) and a double-hole column end plate (202); the rectangular column (201) is a hollow steel column which is prefabricated and formed according to the design size in a factory, the wall thickness is 2-10mm, holes are punched at the upper end and the lower end according to the design, and a welding seam with the length of 200 and 300mm is formed along the position in the figure 6; the double-hole column end plate (202) consists of rib plates, bottom steel plates and linear partition plates on the periphery, and the rib plates, the bottom steel plates and the linear partition plates are connected with one another through full welding; the rectangular column (201) is divided into two small square cavities with the same size by the straight-line-shaped partition plate, the rectangular column (201) and the double-hole column end plate (202) form the double-hole column (2) through full welding and welding along the slit, and finally hot galvanizing treatment is carried out.
Referring to fig. 3 and 7, the three-hole column (3) is a factory-prefabricated L-shaped light steel hollow column, and the three-hole column (3) comprises an L-shaped column (301) and a three-hole column end plate (302); the L-shaped column (301) is a hollow steel column which is prefabricated and formed according to the design size in a factory, the wall thickness is 2-10mm, holes are punched at the upper end and the lower end according to the design, and a welding seam with the length of 200-300mm is formed along the position in the figure 7; the three-hole column end plate (302) consists of rib plates, a bottom steel plate and an L-shaped partition plate which are arranged on the periphery, and the rib plates, the bottom steel plate and the L-shaped partition plate are mutually connected through full welding; the L-shaped separation plate divides the L-shaped column (301) into three small square cavities with the same size, the L-shaped column (301) and the three-hole column end plate (302) are welded into a three-hole column (3) through full welding and along the slit, and finally hot galvanizing treatment is carried out.
Referring to fig. 3 and 8, the four-hole column (4) is a square light steel hollow column prefabricated in a factory, and the four-hole column (3) comprises a large square column (401) (i.e. a second square column) and a four-hole column end plate (402); the large square column (401) is an open-web steel column which is prefabricated and molded according to the design size in a factory, the wall thickness is 2-10mm, and holes are punched at the upper end and the lower end according to the design; and a welding seam with the length of 200-300mm is arranged along the position in the figure 8; the four-hole column end plate (402) consists of rib plates, bottom steel plates and cross-shaped partition plates on the periphery, and the rib plates, the bottom steel plates and the cross-shaped partition plates are connected with one another through full welding and are used for bearing the vertical pressure of the upper tenon (5); the large square column (401) is divided into four small square cavities with the same size by the cross-shaped partition plate, the large square column (401) and the four-hole column end plate (402) are welded into the four-hole column (4) through full welding and along the slit, and finally hot galvanizing treatment is carried out.
In the embodiment of the invention, the upper end and the lower end of the double-hole column (2), the three-hole column (3) and the four-hole column (4) are in the same or basically the same structural mode as the single-hole column (1), and the outer contour shape and the outer contour size are formed by assembling the single-hole column (1) serving as a reference module. The sizes of the double-hole column (2), the three-hole column (3) and the four-hole column (4) are integral multiples of the outer diameter of the single-hole column (1). It can be considered that the double-hole column (2) is assembled by 2 single-hole columns (1), the three-hole column (3) is assembled by 3 single-hole columns (1), and the four-hole column (4) is assembled by 4 single-hole columns (1).
And, haplopore post (1), diplopore post (2), three hole posts (3), four hole posts (4) be for closing the mouth shaped steel, the section shape of haplopore post (1) is square, the section shape of diplopore post (2) is the rectangle, the section shape of three hole posts (3) is L shape, the section shape of four hole posts (4) is square.
Referring to fig. 9, the tenon (5) is a connection assembly prefabricated in a factory, and the tenon (5) comprises a square head (501), a connecting plate (502), a stiffening plate (503) and a hoisting piece (504); the square head (501) is formed by a square steel pipe of which the outer diameter is 1.0-5.0 mm smaller than the inner diameter of the single-hole column (1) through necking at two ends to form a tenon tip, the wall thickness is 2-10mm, and four sides of the end part are punched according to design; the connecting plate (502) is welded with the square head (501) on two sides, the stiffening plate (503) is welded with the square head (501) and the connecting plate (502) on three sides, and the hoisting piece (504) is welded with the square head (501) on two sides.
Referring to fig. 3, the connection mode (8) of the floor slab and the column is that a square head (501) at the lower end of a tenon (5) is inserted into a small square cavity at the upper end of the lower column, the square head (501) at the upper end of the tenon (5) is inserted into a small square cavity at the lower end of the upper column, and the square head (501) is connected with corresponding reserved holes at the upper end and the lower end of the column by using rivet nails.
The connection mode (8) of the floor and the column is that a square head (501) at the lower end of the tenon (5) is inserted into a small square cavity at the upper end of the lower column, a square head (501) at the upper end of the tenon (5) is inserted into a small square cavity at the lower end of the upper column, and the square head (501) is connected with corresponding reserved holes at the upper end and the lower end of the column by using rivet rivets; the tenon (5) is a brand-new prefabricated assembly type beam column node, the square head (501) of the tenon is used as a vertical connecting short column to ensure the rigid connection between an upper layer column and a lower layer column, and the connecting plate (502) of the tenon is used as a horizontal connecting piece to ensure the rigid connection between the light steel truss girder (6) and the short column.
The tenon (5) and the upper layer or the lower layer of the single-hole column (1), the double-hole column (2), the three-hole column (3) and the four-hole column (4) are in a vertically inserted connection relationship, and the outer diameter of the section of the tenon of the inserted column body is 1.0mm-5.0mm smaller than the inner diameter of the section of the receiving column body.
The method for installing the fabricated light steel structure according to the embodiment of the present invention includes the steps of,
step S1, performing independent foundation construction according to a construction design drawing, pre-burying foundation short columns with adjustable elevation and translational freedom degree on the independent foundation, wherein the shapes of the foundation short columns are respectively the same as those of the single-hole column (1), the double-hole column (2), the three-hole column (3) and the four-hole column (4), and adjusting the top elevations of all the foundation short columns to a design elevation;
step S2, according to the sequence in the design drawing, hoisting the bottom floor slab module (7) as the bottom plate, during hoisting, because there is construction error, the horizontal displacement of the foundation short columns on the independent foundation needs to be adjusted, so that the center distance among all the foundation short columns is consistent with the design size, aligning the centers of the four tenons (5) at the lower side of the floor slab module (7) with the center of the foundation short column in the hoisting process, inserting the tenons (5) in the foundation short column by using gravity, and connecting the tenons in the corresponding reserved holes by using pull rivets.
And S3, sleeving the single-hole column (1), the double-hole column (2), the three-hole column (3) and the four-hole column (4) of the first layer into a tenon on the upper side of the bottom floor slab module (7) according to the design number, and connecting and fixing the single-hole column, the double-hole column, the three-hole column and the four-hole column in corresponding reserved holes by using pull rivets to form a connection mode (8) of the floor slab and the columns so as to finish the assembly of the column of the first layer.
Step S4, fixing matched connecting pieces on the outer side surfaces of an upper chord member (601) and a lower chord member (601) of a light steel truss girder (6) in a floor slab module (7) and the side edges of a single-hole column (1), a double-hole column (2), a three-hole column (3) and a four-hole column (4) along the center line of a wall body respectively, hoisting prefabricated wall boards with grooves on the periphery in place in sequence, and clamping the grooves on the horizontal side edges and the lower side edges into the connecting pieces of the light steel truss girder (6) to finish the assembly of a first-layer partition wall;
step S5, hoisting the floor slab module (7) and the connecting piece of the lower chord (601) in place, inserting four tenons (5) on the lower side of the floor slab module (7) into the single-hole column (1), the double-hole column (2), the three-hole column (3) and the four-hole column (4) by utilizing gravity, connecting and fixing the four tenons in corresponding preformed holes by using pull rivets to form a connecting mode (8) of the floor slab and the columns, and simultaneously, clamping the connecting piece of the lower chord (601) into a groove on the upper side of a prefabricated wall board to complete the assembly of the two-layer floor slab module (7).
Step S6, repeating the steps S3, S4 and S5 in sequence, and finishing the assembly of the main body structure of the multistoried building;
and S7, installing parapet walls, and then performing roof slope finding, water proofing and roof tile paving to finish the assembly of the whole building.
Compared with the prior art, the embodiment of the invention at least has the following advantages:
1. through the whole factory prefabrication of the columns, the floor slabs and the nodes, the prefabrication rate of main stress members of the building is greatly improved, so that the structural safety and the quality of the building are ensured, the field operation amount is reduced, the construction environmental pollution is reduced, the construction period is shortened, and the cost is saved.
2. By adopting the method of optimizing the light steel frame type structure system in the floor slab module implanted in the factory by the beam column node, the structure handling is more reasonable, meanwhile, the prefabrication integrity and the industrialization level of building parts are greatly improved, the building material consumption and the construction field operation amount are reduced, and the rapid green construction is really realized.
3. The tenon-and-mortise principle of the nodes in the wood structure is introduced to optimize and improve the beam-column nodes into tenon-and-mortise inserting nodes, so that the construction field operation amount of the nodes is greatly reduced, and the assembly degree is improved compared with the traditional steel structure.
4. The node adopts the rivet connection to replace self-tapping screws or bolts or welding in the traditional steel structure, thereby greatly improving the connection efficiency and strength of the node.
5. The factory prefabricated parts are made of green, low-carbon, environment-friendly and energy-saving materials.
6. The building is integrally firm and durable, heat-insulating, light in weight, energy-saving and environment-friendly, is suitable for various house buildings, has strong applicability, and brings good economic and social benefits.
The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. An assembled light steel structure, comprising: the device comprises a single-hole column (1), a double-hole column (2), a three-hole column (3), a four-hole column (4) and a floor slab module (7);
the single-hole column (1) is a square light steel hollow column, and the single-hole column (1) comprises a first square column (101) and a single-hole column end plate (102) which are connected with each other;
the double-hole column (2) is a rectangular light steel hollow column, and the double-hole column (2) comprises a rectangular column (201) and a double-hole column end plate (202) which are connected;
the three-hole column (3) is an L-shaped light steel hollow column, and the three-hole column (3) comprises an L-shaped column (301) and a three-hole column end plate (302) which are connected with each other;
the four-hole column (4) is a square light steel hollow column, and the four-hole column (4) comprises a second square column (401) and a four-hole column end plate (402) which are connected with each other;
the floor module (7) comprises: a tenon (5) and a light steel truss girder (6); the tenon (5) is respectively connected with the single-hole column (1), the double-hole column (2), the three-hole column (3) and the four-hole column (4); the tenon (5) includes: the device comprises a square head (501), a connecting plate (502), a stiffening plate (503) and a hoisting piece (504); the square head (501) is formed by forming a tenon tip through necking at two ends by using a square steel pipe with the outer diameter 1.0-5.0 mm smaller than the inner diameter of the single-hole column (1), the wall thickness is 2-10mm, and holes are punched on four sides of the end part according to design; the connecting plate (502) is welded with the square head (501) on two sides; the stiffening plate (503) is welded with the square head (501) and the connecting plate (502) on three sides; the hoisting piece (504) is welded with the square head (501) on two sides;
the single-hole column end plate (102) comprises a ribbed plate and a bottom steel plate which are connected; the double-hole column end plate (202) comprises a rib plate, a bottom steel plate and a linear partition plate which are connected, and the linear partition plate divides the rectangular column (201) into two square cavities with the same size; the three-hole column end plate (302) comprises a rib plate, a bottom steel plate and an L-shaped partition plate which are connected, and the L-shaped partition plate divides the L-shaped column (301) into three square cavities with the same size; the four-hole column end plate (402) comprises a rib plate, a bottom steel plate and a cross-shaped partition plate which are connected, and the cross-shaped partition plate divides the second square column (401) into four square cavities with the same size; the single-hole column end plate (102), the double-hole column end plate (202), the three-hole column end plate (302) and the four-hole column end plate (402) bear vertical downward pressure of the tenon (5) respectively.
2. The fabricated light steel structure of claim 1,
the first square column (101) is a light steel hollow square pipe, and four faces of each end part at two ends of the first square column (101) are provided with a plurality of reserved holes.
3. The fabricated light steel structure of claim 1,
the rectangular column (201) is a light steel hollow rectangular tube, four faces of each end part at two ends of the rectangular column (201) are provided with a plurality of preformed holes, and a seam is formed in the middle of the long edge of the rectangular tube.
4. The fabricated light steel structure of claim 1,
the L-shaped column (301) is a light steel hollow L-shaped tube, six faces of each end portion of two ends of the L-shaped column (301) are provided with a plurality of reserved holes, and a long edge and an internal corner of the L-shaped tube are provided with a seam.
5. The fabricated light steel structure of claim 1,
the second square column (401) is a light steel hollow square tube, four faces of each end portion of two ends of the second square column (401) are provided with a plurality of preformed holes, and a seam is formed in the middle of each edge of the square tube.
6. Fabricated light steel structure according to any one of claims 2 to 5,
the sizes of the double-hole column (2), the three-hole column (3) and the four-hole column (4) are integral multiples of the size of the single-hole column (1).
7. Fabricated light steel structure according to any one of claims 2 to 5,
the cross section of the single-hole column (1) is square, the cross section of the double-hole column (2) is rectangular, the cross section of the three-hole column (3) is L-shaped, and the cross section of the four-hole column (4) is square.
8. The fabricated light steel structure of claim 1,
the light steel truss girder (6) comprises a chord member (601) and an inclined web member (602) which are connected, wherein the chord member (601) is a U-shaped section with a groove and an outer curled edge, and the inclined web member (602) is C-shaped steel; chords (601) of four mutually vertical light steel truss girders (6) are connected with a connecting plate (502) of a tenon (5) to form an outer frame of a floor slab module (7);
at least one or all of the four side surfaces of the square head (501) are connected with one or more connecting plates (502) to form an L-shaped, straight-line-shaped, T-shaped or cross-shaped connection, so that the square head is further connected with the light steel truss girders (6) in multiple directions in the floor slab module (7).
9. The fabricated light steel structure of claim 1,
the tenon (5) is connected with the single-hole column (1), the double-hole column (2), the three-hole column (3) and the four-hole column (4) in a vertically inserted manner, and the outer diameter of the cross section of the tenon of the inserted column is smaller than the inner diameter of the cross section of the receiving column.
10. A method of installing an assembled light steel structure, comprising:
step one, embedding a basic short column, wherein the shape of the basic short column is respectively the same as that of a single-hole column (1), a double-hole column (2), a three-hole column (3) and a four-hole column (4);
step two, hoisting the bottom floor slab module (7) as a bottom plate in sequence, aligning the centers of four tenons (5) on the lower side of the floor slab module (7) with the center of the foundation short column, inserting the tenons (5) into the foundation short column, and connecting the tenons in corresponding reserved holes by using pull rivets; the tenon (5) includes: the device comprises a square head (501), a connecting plate (502), a stiffening plate (503) and a hoisting piece (504); the square head (501) is formed by forming a tenon tip through necking at two ends by using a square steel pipe with the outer diameter 1.0-5.0 mm smaller than the inner diameter of the single-hole column (1), the wall thickness is 2-10mm, and holes are punched on four sides of the end part according to design; the connecting plate (502) is welded with the square head (501) on two sides; the stiffening plate (503) is welded with the square head (501) and the connecting plate (502) on three sides; the hoisting piece (504) is welded with the square head (501) on two sides;
step three, respectively sleeving the single-hole column (1), the double-hole column (2), the three-hole column (3) and the four-hole column (4) of the first layer into a tenon (5) on the upper side of a bottom floor slab module (7), and connecting and fixing the single-hole column, the double-hole column, the three-hole column and the four-hole column in corresponding reserved holes by using pull rivets to form connection between a floor slab and the columns so as to finish assembly of the columns of the first layer;
step four, fixing matched connecting pieces on the outer side surfaces of an upper chord member (601) and a lower chord member (601) of a light steel truss girder (6) in a floor slab module (7) and the side edges of a single-hole column (1), a double-hole column (2), a three-hole column (3) and a four-hole column (4) along the center line of a wall body respectively, hoisting prefabricated wall boards with grooves on the periphery in place in sequence, and clamping the grooves on the horizontal side edge and the lower side edge into the connecting pieces of the light steel truss girder (6) to finish the assembly of the first-layer partition wall;
hoisting the floor slab module (7) and the wallboard connecting piece of the lower chord member (601) in place, respectively inserting four tenons (5) on the lower side of the floor slab module (7) into the single-hole column (1), the double-hole column (2), the three-hole column (3) and the four-hole column (4) by utilizing gravity, and connecting and fixing the floor slab module and the wallboard connecting piece in corresponding reserved holes by using pull rivets to form connection between the floor slab and the columns; meanwhile, the connecting piece of the lower chord (601) is clamped into the groove at the upper side of the prefabricated wallboard to complete the assembly of the two-layer floor slab module (7); the single-hole column end plate (102) comprises a rib plate and a bottom steel plate which are connected; the double-hole column end plate (202) comprises a ribbed plate, a bottom steel plate and a linear partition plate which are connected, and the linear partition plate divides the rectangular column (201) into two square cavities with the same size; the three-hole column end plate (302) comprises a ribbed plate, a bottom steel plate and an L-shaped partition plate which are connected, and the L-shaped partition plate divides the L-shaped column (301) into three square cavities with the same size; the four-hole column end plate (402) comprises a rib plate, a bottom steel plate and a cross-shaped partition plate which are connected, and the cross-shaped partition plate divides the second square column (401) into four square cavities with the same size; the single-hole column end plate (102), the double-hole column end plate (202), the three-hole column end plate (302) and the four-hole column end plate (402) bear the vertical downward pressure of a tenon (5) respectively;
and step six, repeating the steps of step three, step four and step five in sequence, thereby completing the assembly of the main structure of the multi-storey building.
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| CN113931303B (en) * | 2021-10-09 | 2023-08-25 | 北新建材集团有限公司 | Frame construction of assembled house and connected node structure thereof |
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| CN105544738A (en) * | 2016-01-20 | 2016-05-04 | 天津大学 | Self-locking mortise and tenon type module building connecting joint |
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