Core octahedron connecting joint and method of steel structure box integrated house

Abstract

The application discloses a kind of core octahedral connecting nodes and methods of steel structure box integrated house, comprising: core octahedron, box seven-hedron steel corner piece, I-beam upper floor beam, I-beam upper column, I-beam lower ceiling beam, I-beam lower column, core bolt, beam-column general bolt, bolt hole is opened on the flange of I-beam upper floor beam and lower ceiling beam, bolt hole is opened on the flange of I-beam upper and lower column.The hole of upper floor beam and lower ceiling beam of steel structure box integrated house at flange is fastened and connected by beam-column general bolt, the hole of I-beam upper and lower column at flange is fastened and connected by beam-column general bolt, I-beam, I-beam column and box seven-hedron steel corner piece are welded and connected, core octahedron and box seven-hedron steel corner piece are connected by core bolt, and have broad application prospect in multi-storey steel structure box integrated house.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of modular steel structure house design in the construction industry, and particularly relates to a core octahedral node and method of a steel structure box integrated house. BACKGROUND

[0002] The modular steel structure box integrated building has a very high degree of industrialization, is easy to assemble, is simple to construct, saves labor, is more environmentally friendly and energy-saving, and is very consistent with the current green and low-carbon development concept. In recent years, it has been increasingly pursued by owners and designers.

[0003] For a steel structure box integrated house, the connecting node between the boxes is the main factor affecting the safety of the structure. The existing nodes are mostly beam-beam connections, and do not achieve column-column connections. Moreover, they cannot achieve the connection of the eight columns and sixteen beams in the middle of the box. The node reliability is not high, and it is not possible to truly assemble each box module to form a whole structure, and it is not possible to ensure the effective transmission of horizontal and vertical loads of the structure. SUMMARY

[0004] The purpose of the present application is to solve the problems in the background art, and to provide a core octahedral node and method suitable for a steel structure box integrated house.

[0005] In order to achieve the above-mentioned purpose, the following technical solution is adopted: a core octahedral connecting node of a steel structure box integrated house, comprising: a core octahedron, an upper box heptahedral steel corner piece, a lower box heptahedral steel corner piece, an I-shaped steel upper floor beam, an I-shaped steel upper column, an I-shaped steel lower ceiling beam, an I-shaped steel lower column, a core bolt and a beam-column universal bolt.

[0006] The eight faces of the core octahedron are connected by core bolts with four upper box heptahedral steel corner pieces and four lower box heptahedral steel corner pieces.

[0007] The two sides of the upper box heptahedral steel corner piece are welded with I-shaped steel upper floor beams, and the top end of the upper box heptahedral steel corner piece is welded with an I-shaped steel upper column.

[0008] The two sides of the lower box heptahedral steel corner piece are welded with I-shaped steel lower ceiling beams, and the bottom end of the lower box heptahedral steel corner piece is welded with an I-shaped steel lower column.

[0009] The core octahedron is an octahedral steel member welded from eight triangular steel plates.

[0010] Further, the upper box heptahedral steel corner piece and the lower box heptahedral steel corner piece are both composed of a heptahedral steel member welded from one inclined plane, three right-angled triangular steel plates, two rectangular steel plates and one square steel plate.

[0011] The inclined plane plate is a right triangle, and the inclined edges of the three right triangle steel plates are connected with one edge of the inclined plane plate, wherein two of the right triangle steel plates are vertically arranged with the other right triangle steel plate and the square steel plate; the vertical right angle edges of the two right triangle steel plates are respectively fixedly connected with the long edges of a rectangular steel plate, and the horizontal right angle edges are respectively fixedly connected with two adjacent edges of the square steel plate; one group of short edges of the two rectangular steel plates are respectively fixedly connected with the other two edges of the square steel plate and the two right angle edges of the horizontally arranged right triangle steel plate; the length of the short edge of the rectangular steel plate is less than the length of the edge of the square steel plate;

[0012] The direction of the inclined plane plate of the upper-layer box seven-hedron steel corner piece is inclined downward, corresponding to the right triangle steel plate of the upper half of the core octahedron;

[0013] The direction of the inclined plane plate of the lower-layer box seven-hedron steel corner piece is inclined upward, corresponding to the right triangle steel plate of the lower half of the core octahedron.

[0014] Further, the flanges of the I-shaped steel upper-layer floor beams are welded with the rectangular steel plates on both sides of the upper-layer box seven-hedron steel corner piece, the flanges and webs of the I-shaped steel upper-layer column bottom ends are welded with the square steel plate at the top end of the upper-layer box seven-hedron steel corner piece, the flanges of the I-shaped steel lower-layer ceiling beams are welded with the rectangular steel plates on both sides of the lower-layer box seven-hedron steel corner piece, and the flanges and webs of the I-shaped steel lower-layer column top ends are welded with the square steel plate at the bottom end of the lower-layer box seven-hedron steel corner piece.

[0015] Further, the first type bolt holes are arranged on the centers of the inclined plane steel plates and the right triangle steel plates, and threads are arranged in the first type bolt holes.

[0016] The positions of the first type bolt holes on the inclined plane steel plates correspond to the positions of the first type bolt holes on the right triangle steel plates.

[0017] Further, the core bolt is screwed into the first type bolt hole on the inclined plane steel plate of the upper-layer box seven-hedron steel corner piece, and passes through the first type bolt holes on the inclined plane plate of the upper-layer box seven-hedron steel corner piece and the corresponding first type bolt holes on the right triangle steel plate, and is screwed out to the inside of the core octahedron.

[0018] Further, the second type bolt holes are arranged on the I-shaped steel upper-layer floor beams and the I-shaped steel lower-layer ceiling beams, the beam-column general bolts are screwed into the second type bolt holes on the I-shaped steel upper-layer floor beams, pass through the second type bolt holes on the I-shaped steel lower-layer ceiling beams, and are fastened with nuts, the I-shaped steel upper-layer columns are connected with each other by the beam-column general bolts, and the I-shaped steel lower-layer columns are connected with each other by the beam-column general bolts.

[0019] Further, the diameter of the second type of bolt hole is smaller than that of the first type of bolt hole.

[0020] The application further provides an installation method of a core octahedral connecting node of a steel structure box integrated house, comprising:

[0021] Step one: assembling a lower box module through a lower box seven-sided steel corner piece, an I-shaped steel lower ceiling beam, an I-shaped steel lower column, and a beam-column general bolt;

[0022] Step two: hoisting and placing the lower box module;

[0023] Step three: placing a core octahedron and fastening and connecting the core octahedron and the lower box module through a core bolt;

[0024] Step four: assembling an upper box module through an upper box seven-sided steel corner piece, an I-shaped steel upper floor beam, an I-shaped steel upper column, and a beam-column general bolt;

[0025] Step five: hoisting and placing the upper box module and fastening and connecting the core octahedron and the upper box module through a core bolt;

[0026] Step six: repeating steps one to five until the installation of the whole core octahedral connecting node is completed.

[0027] Beneficial effects: the core octahedral node of the steel structure box integrated house is simple in form and convenient to assemble, and the box assembly can be completed only by using one core octahedron, has a high degree of industrialization, and has the advantages of fast construction speed, easy control of construction quality, and green environmental protection; the core octahedral node has a good application prospect in the steel structure box integrated house due to its superior assembly efficiency and good mechanical properties. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a whole exploded view of the core octahedral connecting node of the application;

[0029] Figure 2 is a core octahedron component schematic view of the core octahedral connecting node of the application;

[0030] Figure 3 is an upper and lower box seven-sided corner piece schematic view of the core octahedral connecting node of the application;

[0031] Figure 4 is a beam-column and corner piece connection schematic view of the core octahedral connecting node of the application;

[0032] Figure 5 is an upper and lower beam connection schematic view of the core octahedral connecting node of the application;

[0033] Figure 6 is the same layer column connection diagram of the core octahedral connecting node of the application;

[0034] Figure 7 is the heptahedral corner piece and core octahedral connection diagram of the core octahedral connecting node of the application.

[0035] In the figure: 1-core octahedron, 2-upper box heptahedral steel corner piece, 3-lower box heptahedral steel corner piece, 4-I-shaped steel upper floor beam, 5-I-shaped steel upper column, 6-I-shaped steel lower ceiling beam, 7-I-shaped steel lower column, 8-core bolt, 9-beam column general bolt, 10-first type bolt hole, 11-second type bolt hole, 12-inclined steel plate, 13-rectangular steel plate. DETAILED DESCRIPTION

[0036] The application will be further explained in conjunction with the accompanying drawings.

[0037] The application will be further described in detail through specific examples, which are only descriptive and not limiting, and cannot limit the protection scope of the application.

[0038] As shown in Figure 1 , a core octahedral node suitable for a steel structure box integrated house, characterized in that it comprises a core octahedron 1, an upper box heptahedral steel corner piece 2, a lower box heptahedral steel corner piece 3, an I-shaped steel upper floor beam 4, an I-shaped steel upper column 5, an I-shaped steel lower ceiling beam 6, an I-shaped steel lower column 7, a core bolt 8, a beam column general column bolt 9, an inclined steel plate 12, and a rectangular steel plate 13.

[0039] The upper box heptahedral steel corner piece 2 is horizontally welded with an I-shaped steel floor beam 4 and vertically welded with an I-shaped steel column 5, the lower box heptahedral steel corner piece 3 is horizontally welded with an I-shaped steel ceiling beam 6 and vertically welded with an I-shaped steel column 7, and the four lower box heptahedral steel corner pieces 3 and the four upper box heptahedral steel corner pieces 2 are connected with the core octahedron 1 through bolts.

[0040] As shown in Figure 2 , the core octahedron 1 is an octahedral steel member 1 welded by eight right triangular steel plates, and the steel plate of each face of the core octahedron 1 is provided with a first type bolt hole 10 at the centroid position, for bolt connection with the box heptahedral steel corner piece.

[0041] As shown in Figure 3As shown, the inclined plane steel plate 12 on the upper layer box seven-hedron steel corner piece 2 and the lower layer box seven-hedron steel corner piece 3 is attached to the equilateral triangle steel plate of the core octahedron 1, the steel plates connected to the two sides of the inclined plane steel plate 12 are right triangle steel plates, the two side faces of the corner piece are rectangular steel plates, the top face of the upper layer box seven-hedron steel corner piece 2 is a square steel plate, and the bottom face is a right triangle steel plate, the bottom face of the lower layer box seven-hedron steel corner piece 3 is a square steel plate, and the top face is a right triangle steel plate, wherein the inclined plane plate 12 is an equilateral triangle, the inclined edges of the three right triangle steel plates are respectively connected to an edge of the inclined plane plate 12, and the two right triangle steel plates on the two sides are vertically arranged with the other right triangle steel plate and the square steel plate; the vertical right edges of the two right triangle steel plates on the two sides are respectively fixedly connected with the long edges of a rectangular steel plate 13, and the horizontal right edges are respectively fixedly connected with two adjacent edges of the square steel plate; one group of short edges of the two rectangular steel plates 13 are respectively fixedly connected with the other two edges of the corresponding square steel plate and the two right edges of the horizontally arranged right triangle steel plate; the length of the short edge of the rectangular steel plate 13 is less than the length of the edge of the square steel plate, facilitating the screwing of the core bolt 8 into the core octahedron 1, the direction of the inclined plane plate 12 of the upper layer box seven-hedron steel corner piece 2 is inclined downward, corresponding to the equilateral triangle steel plate of the upper half of the core octahedron 1, and the direction of the inclined plane plate 12 of the lower layer box seven-hedron steel corner piece 3 is inclined upward, corresponding to the equilateral triangle steel plate of the lower half of the core octahedron 1.

[0042] As shown in the figure, Figure 4 The inner side of the I-shaped steel beam column near the seven-hedron corner piece end is provided with a second type of bolt hole 11 for fastening connection, the I-shaped steel upper column 5 is welded on the top square steel plate of the upper layer box seven-hedron steel corner piece 2, the I-shaped steel upper floor beam 4 is welded on the rectangular steel plate 13 on the side of the box seven-hedron steel corner piece 2, the I-shaped steel lower column 7 is welded on the bottom square steel plate of the lower layer box seven-hedron steel corner piece 3, and the I-shaped steel lower ceiling beam 6 is welded on the rectangular steel plate on the side of the lower layer box seven-hedron steel corner piece 3.

[0043] As shown in the figure, Figure 5 The second type of bolt hole 11 provided on the I-shaped steel upper floor beam 4 and the I-shaped steel lower ceiling beam 6 has a diameter slightly larger than that of the beam column general bolt 9, the beam column general bolt 9 is passed through the two corresponding bolt holes 11 and then fastened with a nut to complete the connection of the I-shaped steel upper floor beam 4 and the I-shaped steel lower ceiling beam 6.

[0044] As shown in the figure, Figure 6As shown, the diameters of the second type bolt holes 11 on the two corresponding upper I-shaped columns 5 are slightly larger than the diameters of the beam-column universal bolts 9, the beam-column universal bolts 9 are passed through the two corresponding upper column bolt holes 11 and then fastened and connected with nuts, the mutual connection of the four upper I-shaped columns 5 is completed, and the connection between the lower I-shaped columns 7 is the same as the upper layer.

[0045] As shown in the figure, Figure 7 As shown, the eight faces of the core octahedron 1 can be bolted with the box heptahedron steel corner fittings, the inclined plane steel plates 13 of the box heptahedron steel corner fittings are aligned with the faces of the core octahedron 1, the holes are aligned, the core bolts 8 are screwed into the first type bolt holes 10 on the box heptahedron steel corner fittings from the hollow outside of the heptahedron corner fittings, the bolts pass through the first type bolt holes 10 on the inclined plane steel plates 13 of the box heptahedron steel corner fittings and the first type bolt holes 10 on the faces of the core octahedron 1, and are screwed into the inside of the core octahedron 1, the connection of the core octahedron 1 and the steel structure box heptahedron corner fittings is completed.

[0046] During installation, the lower box module is placed first, then the core octahedron 1 is placed, the core octahedron 1 is connected with the lower box module through the core bolts 8, then the upper box module is placed, the core octahedron 1 is connected with the upper box module through the core bolts 8, and finally the assembly of the steel structure box integrated house is completed.

[0047] In addition, according to the assembly mode of the steel structure box integrated house, the core octahedron is correspondingly welded to adapt to the connection needs between different numbers of box module units, such as the connection of only the upper four box units.

[0048] The assembly sequence can be briefly described as:

[0049] The lower box module is hoisted and placed, the core octahedron is placed, the core octahedron and the lower box module are fastened and connected through the core bolts, the upper box module is hoisted and placed, the core octahedron and the upper box module are fastened and connected through the core bolts, and the cycle is repeated until the overall structure installation is completed.

[0050] The present application solves the problems that the existing nodes are mostly beam-beam connections, column-column connections cannot be realized, the connection between the eight columns and sixteen beams in the middle of the box cannot be realized, the node reliability is not high, each box module cannot be truly assembled to form an overall structure, and the horizontal load and vertical load of the structure cannot be effectively transmitted, the node structure is simple, the assembly is convenient, has good assembly efficiency and excellent mechanical properties, and has a good application prospect in the field of modular steel structure box integrated buildings; and the present application can also be applied to multi-story steel structure box integrated houses.

[0051] The present application also provides an installation method of the core octahedron connection node of the steel structure box integrated house.

[0052] Step one: Assemble the lower box module by using the lower box heptahedral steel corner fittings, the I-beam lower ceiling beams, the I-beam lower columns and the beam-column universal bolts;

[0053] Step two: Hoist and place the lower box module;

[0054] Step three: Place the core octahedron and fasten the core octahedron and the lower box module by using the core bolts;

[0055] Step four: Assemble the upper box module by using the upper box heptahedral steel corner fittings, the I-beam upper floor beams, the I-beam upper columns and the beam-column universal bolts;

[0056] Step five: Hoist and place the upper box module and fasten the core octahedron and the upper box module by using the core bolts;

[0057] Step six: Repeat steps one to five until the installation of the overall core octahedral connection node is completed.

[0058] The above only describes the preferred embodiments of the present application, and it should be noted that those of ordinary skill in the art can make several improvements and refinements without departing from the principles of the present application, and these improvements and refinements should also be considered within the protection scope of the present application.

Claims

1. A core octahedron connecting joint of a steel structure box integrated house, characterized in that, It comprises: core octahedron (1), upper layer box seven pyramid steel corner piece (2), lower layer box seven pyramid steel corner piece (3), I-shaped steel upper layer floor beam (4), I-shaped steel upper layer column (5), I-shaped steel lower layer ceiling beam (6), I-shaped steel lower layer column (7), core bolt (8) and beam column general bolt (9); The eight faces of the core octahedron (1) are connected with four upper layer box seven pyramid steel corner pieces (2) and four lower layer box seven pyramid steel corner pieces (3) through core bolts (8) respectively; Two sides of the upper layer box seven pyramid steel corner piece (2) are welded with I-shaped steel upper layer floor beams (4), and the top end of the upper layer box seven pyramid steel corner piece (2) is welded with I-shaped steel upper layer column (5); Two sides of the lower layer box seven pyramid steel corner piece (3) are welded with I-shaped steel lower layer ceiling beams (6), and the bottom end of the lower layer box seven pyramid steel corner piece (3) is welded with I-shaped steel lower layer column (7); The core octahedron (1) is a steel component of a regular octahedron, which is welded into one body by eight regular triangular steel plates.

2. The core octahedral connecting joint of the steel structure box integrated house according to claim 1, characterized in that, The upper layer box seven pyramid steel corner piece (2) and the lower layer box seven pyramid steel corner piece (3) are both seven pyramid steel components welded by one bevel steel plate (12), three right-angled triangular steel plates, two rectangular steel plates (13) and one square steel plate; The bevel steel plate (12) is a regular triangle, the oblique sides of the three right-angled triangular steel plates are connected with one side of the bevel steel plate (12) respectively, and the two right-angled triangular steel plates on the two sides are vertically arranged with the other right-angled triangular steel plate and the square steel plate; the vertical right-angled edges of the two right-angled triangular steel plates on the two sides are fixedly connected with the long edges of one rectangular steel plate (13) respectively, and the horizontal right-angled edges are fixedly connected with the two adjacent edges of the square steel plate respectively; one group of short edges of the two rectangular steel plates (13) are fixedly connected with the other two edges of the square steel plate and the two horizontal right-angled edges of the right-angled triangular steel plate respectively; the length of the short edge of the rectangular steel plate (13) is less than the length of the edge of the square steel plate; The direction of the bevel steel plate (12) of the upper layer box seven pyramid steel corner piece (2) is obliquely downward, corresponding to the regular triangular steel plate of the upper half of the core octahedron (1); The direction of the bevel steel plate (12) of the lower layer box seven pyramid steel corner piece (3) is obliquely upward, corresponding to the regular triangular steel plate of the lower half of the core octahedron (1).

3. The core octahedron connecting joint of the steel structure box integrated house according to claim 2, characterized in that, The flanges of the I-shaped steel upper layer floor beam (4) are welded with the rectangular steel plates (13) on the two sides of the upper layer box seven pyramid steel corner piece (2), the flanges and web of the bottom end of the I-shaped steel upper layer column (5) are welded with the square steel plate at the top end of the upper layer box seven pyramid steel corner piece (2), the flanges of the I-shaped steel lower layer ceiling beam (6) are welded with the rectangular steel plates (13) on the two sides of the lower layer box seven pyramid steel corner piece (3), and the flanges and web of the top end of the I-shaped steel lower layer column (7) are welded with the square steel plate at the bottom end of the lower layer box seven pyramid steel corner piece (3).

4. The core octahedron connecting joint of the steel structure box integrated house according to claim 2, characterized in that, The first type bolt hole (10) is arranged on the centroid of the bevel steel plate (12) and the equilateral triangle steel plate, and a thread is arranged in the first type bolt hole (10). The first type bolt hole (10) on the bevel steel plate (12) is in corresponding position with the first type bolt hole (10) on the equilateral triangle steel plate.

5. The core octahedron connecting joint of the steel structure box integrated house according to claim 4, characterized in that, The core bolt (8) is screwed into the first type bolt hole (10) on the bevel steel plate (12) of the upper-layer box seven-faced steel corner piece (2), and is screwed out to the inside of the core octahedron (1) through the first type bolt hole (10) on the bevel steel plate (12) of the upper-layer box seven-faced steel corner piece (2) and the first type bolt hole (10) on the corresponding equilateral triangle steel plate.

6. The core octahedral connection joint of the steel structure box integrated house according to claim 1, characterized in that, The second type bolt hole (11) is arranged on the I-shaped steel upper-layer floor beam (4) and the I-shaped steel lower-layer ceiling beam (6), the beam-column general bolt (9) is screwed into the second type bolt hole (11) on the I-shaped steel upper-layer floor beam (4), and passes through the second type bolt hole (11) on the I-shaped steel lower-layer ceiling beam (6) and is fastened by a nut, the I-shaped steel upper-layer column (5) is connected with each other by the beam-column general bolt (9), and the I-shaped steel lower-layer column (7) is connected with each other by the beam-column general bolt (9).

7. The core octahedral connecting joint of the steel structure box integrated house according to claim 6, characterized in that, The diameter of the second type bolt hole (11) is smaller than that of the first type bolt hole (10).

8. The method of installing the core octahedral connecting joint of the steel structure box integrated house according to any one of claims 1-7, characterized in that, The method comprises the following steps: Step one: assembling a lower-layer box module by a lower-layer box seven-faced steel corner piece, an I-shaped steel lower-layer ceiling beam, an I-shaped steel lower-layer column and a beam-column general bolt; Step two: hoisting and placing the lower-layer box module; Step three: placing a core octahedron, and fastening and connecting the core octahedron and the lower-layer box module by a core bolt; Step four: assembling an upper-layer box module by an upper-layer box seven-faced steel corner piece, an I-shaped steel upper-layer floor beam, an I-shaped steel upper-layer column and a beam-column general bolt; Step five: hoisting and placing the upper-layer box module, and fastening and connecting the core octahedron and the upper-layer box module by the core bolt; Step six: repeating steps one to five until the installation of the whole core octahedron connecting joint is completed.

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