CN113216390B - Modularized steel structure connecting node adopting inner sleeve grouting connection and mounting method - Google Patents
Modularized steel structure connecting node adopting inner sleeve grouting connection and mounting method Download PDFInfo
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- CN113216390B CN113216390B CN202110450353.1A CN202110450353A CN113216390B CN 113216390 B CN113216390 B CN 113216390B CN 202110450353 A CN202110450353 A CN 202110450353A CN 113216390 B CN113216390 B CN 113216390B
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- accommodating cavity
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2415—Brackets, gussets, joining plates
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2421—Socket type connectors
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/246—Post to post connections
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention provides a modularized steel structure connecting node connected by inner sleeve grouting, which comprises an upper module column, an upper module beam, a lower module column, a lower module beam and a connecting piece, wherein the connecting piece comprises a horizontal connecting plate and at least two inner sleeves arranged on the surface of the horizontal connecting plate, the inner sleeves are fixed with the horizontal connecting plate, the side surfaces of the inner sleeves are provided with inner pegs protruding outwards, the inner walls of the upper module column and the lower module column are provided with outer pegs protruding inwards, the upper module column comprises an upper accommodating cavity, the lower module column comprises a lower accommodating cavity, each inner sleeve at the upper part of the connecting piece is respectively arranged in the upper accommodating cavity of each upper module column, each inner sleeve at the lower part of the connecting piece is respectively arranged in the lower accommodating cavity of each lower module column, grouting materials are arranged between the upper accommodating cavity and the upper part of the connecting piece, between the lower accommodating cavity and the lower part of the connecting piece, and the grouting materials are used for fixedly connecting the upper module column, the lower module column and the connecting piece. The invention also provides a manufacturing method of the connecting node.
Description
Technical Field
The invention belongs to the technical field of construction engineering, and particularly relates to a modularized steel structure connecting node connected by grouting through an inner sleeve.
Background
In the existing steel structure or combined structure, the connection between the steel members is generally bolted or welded, and the existing connection forms require a certain operation space, installation errors and long connection time in the connection process. For the modularized steel structure, a plurality of members such as beam columns, multi-surface walls, floors and the like are arranged at column node positions, and if the existing connection mode is adopted, the operation space is lacking, and the connection can not be realized under the condition of not damaging surrounding members; and the modularized structure is sensitive to connection and installation errors, the structure assembly is difficult to realize under the condition of smaller installation errors in the existing connection mode, and the structure has good bearing and anti-seismic performances. In order to meet the construction assembly requirements, larger construction errors are reserved, and the effect of node load transmission is affected.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a sleeve grouting connecting node between steel structure modules, when an inner sleeve is inserted into a preset position in a module column, grouting is performed at a reserved grouting opening, so that the connection between steel members can be realized, no additional operation process is needed, and the decoration of a modularized building is not influenced. And larger construction and installation errors can be tolerated, and the reliable connection of the upper module column and the lower module column is realized by filling non-shrinkage grouting materials in the later stage.
The aim of the invention is achieved by the following technical scheme:
the first aspect of the invention provides a modularized steel structure connecting node connected by inner sleeve grouting, which is used for connecting steel structure modules, and comprises an upper module column, an upper module beam, a lower module column, a lower module beam and connecting pieces, wherein the connecting pieces comprise a horizontal connecting plate and at least two inner sleeves arranged on the surface of the horizontal connecting plate, the inner sleeves are fixed with the horizontal connecting plate, the side surfaces of the inner sleeves are provided with inner bolts protruding outwards, the inner walls of the upper module column and the lower module column are provided with outer bolts protruding inwards, the upper module column comprises an upper accommodating cavity, the lower module column comprises a lower accommodating cavity, each inner sleeve at the upper part of the connecting pieces is respectively arranged in the upper accommodating cavity of each upper module column, each inner sleeve at the lower part of the connecting pieces is respectively arranged in the lower accommodating cavity of each lower module column, grouting materials are arranged between the upper accommodating cavity and the upper part of the connecting pieces, between the lower accommodating cavity and the lower parts of the connecting pieces, and the grouting materials are used for fixedly connecting the upper module column, the lower module column and the connecting pieces.
In some embodiments, the plurality of inner pegs are arranged in a plurality of columns on the circumferential side of the inner sleeve, while the plurality of outer pegs are arranged in a plurality of columns within the inner walls of the upper receiving cavity of the upper module post and the lower receiving cavity of the lower module post, wherein the columns of inner pegs are staggered with the columns of outer pegs in a horizontal direction.
In some embodiments, the inner peg and each outer peg comprise a circular top plate and a connecting rod fixedly connected to the lower surface of the circular top plate, and the other end of the connecting rod is fixedly connected to the inner sleeve.
In some embodiments, an elastic material is disposed at the bottom end of the outer wall of the upper accommodating chamber and at the top end of the outer wall of the lower accommodating chamber, and a closed space is formed between the horizontal connection plate and the upper accommodating chamber and the lower accommodating chamber.
In some embodiments, four inner sleeves are respectively arranged on the upper side and the lower side of the horizontal connecting plate, four upper module beams are adjacently arranged according to a two-by-two array, four upper module beams are divided into two groups, the directions of the two groups of upper module beams are oppositely arranged on two sides of the four upper module beams, four lower module beams are adjacently arranged according to a two-by-two array, the four lower module beams are divided into two groups, and the directions of the two groups of lower module beams are oppositely arranged on two sides of the four lower module beams.
In some embodiments, a relief groove is provided at the top end of each lower module post and/or the bottom end of each upper module post such that the horizontal connection plate can be received in the relief groove after the upper and lower module posts are relatively engaged.
In some embodiments, the upper and lower receiving chambers further include upper and lower inner baffles positioned to correspond to the flanges of the upper and lower module beams, respectively.
In some embodiments, an upper injection port penetrating outward is provided at an upper side in an axial direction of a side surface of the upper accommodation chamber, and a lower injection port penetrating outward is provided at an upper side in an axial direction of a side surface of the lower accommodation chamber.
A second aspect of the present invention provides a method of installing the aforementioned modular steel structure connection node using an inner sleeve grout connection, comprising the steps of: s1, vertically arranging lower module columns of each lower module, wherein a lower accommodating cavity faces upwards, arranging 4 lower module columns into a two-by-two array, aligning 4 inner sleeves at the lower part of a connecting piece with the 4 lower accommodating cavities respectively, aligning inner pegs of the connecting piece with outer pegs in the lower accommodating cavities, and inserting the lower part of the connecting piece into the lower accommodating cavities until the lower surface of a horizontal connecting plate of the connecting piece abuts against the top end of the outer wall of the lower accommodating cavity; s2, pouring grouting material into a fixed space between the lower part of the connecting piece and the lower accommodating cavity through the lower pouring opening until the fixed space is filled, solidifying the grouting material, S3, dividing 4 upper modules into groups and oppositely arranging the upper accommodating cavities of each upper module, respectively vertically aligning with an inner sleeve at the upper part of the connecting piece, further oppositely jointing the upper modules with the lower modules, aligning an upper module beam of each upper module with a lower module beam of one lower module, and S4, pouring grouting material into the fixed space between the upper part of the connecting piece and the upper accommodating cavity through the upper pouring opening until the fixed space is filled, solidifying the grouting material, and completing connection of the upper modules and the lower modules.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
when the inner sleeve is inserted into the preset position in the module column, the connection between the steel members can be realized by grouting at the reserved grouting openings, the decoration of the modular building is not influenced, the reliable connection is realized, larger construction and installation errors can be reserved between the module and the inner sleeve, and the inner sleeve and the module column can be filled with grouting materials at the back, so that the load can be transmitted between the inner sleeve and the module column.
Drawings
FIG. 1 illustrates a perspective view of an uninstalled state of a modular steel structure connection node employing an inner sleeve grout connection according to one embodiment of the present invention;
FIG. 2 shows an enlarged partial view of portion A of FIG. 1;
FIG. 3 is a side cross-sectional view of the modular steel structure connection node of FIG. 1 shown uninstalled with an inner sleeve grout joint;
fig. 4 is a side sectional view showing a state in which the partial installation of the connection node in fig. 3 is completed;
fig. 5 is a side sectional view showing a state in which all installation of the connection node in fig. 3 is completed;
FIG. 6 is a transverse cross-sectional view showing a state in which all the installation of the connection node in FIG. 3 is completed;
FIG. 7 is a perspective view showing an installation completion state of a modular steel structure connection node using an inner sleeve grouting connection according to an embodiment of the present invention;
figure 8 illustrates a flow chart of a method of installing a modular steel structure connection node using an inner sleeve grout connection according to one embodiment of the present invention.
Detailed Description
The following detailed description is of the best mode presently contemplated for carrying out the invention. This description is not to be taken in a limiting sense, but is made merely for the purpose of illustrating the general principles of embodiments of the invention. The scope of the invention is best defined by the appended claims. In certain instances, detailed descriptions of well-known devices and mechanisms are omitted so as not to obscure the description of the present invention with unnecessary detail.
As shown in fig. 1, 3 and 5, the modular steel structure connection node using the inner sleeve grouting connection according to an embodiment of the present invention includes a connection member 10, an upper module 20 and a lower module 30, and the upper module 20 further includes an upper module column 22 extending upward in a vertical direction and an upper module beam 21 disposed perpendicular to the upper module column 22. And the lower module 30 further includes a lower module column 32 extending downward in a vertical direction and a lower module beam 31 disposed perpendicular to the lower module column 32. Wherein, the upper module 20 is disposed at the upper side of the connection member 10, including a lower open upper receiving chamber 25 having a rectangular parallelepiped shape, the lower module 30 is disposed at the lower side of the connection member 10, including a lower receiving chamber 35 having a rectangular parallelepiped shape and opened upward, the upper module 20 and the lower module 30 are relatively engaged, such that the upper portion of the connection member 10 is inserted into the upper receiving chamber 25, the lower portion of the connection member 10 is inserted into the lower receiving chamber 35, and a fixing space is provided between the upper side of the connection member 10 and the upper receiving chamber 25 and between the lower side of the connection member 10 and the lower receiving chamber 35, and a non-shrinkage high-strength grouting material 9 is injected into the fixing chamber, thereby firmly fixing the upper module 20, the connection member 10, and the lower module 30 together.
Referring to fig. 1 and 7, in the present embodiment, 4 upper modules 20 and 4 lower modules 30 are provided and connected to one connecting member 10 at the same time, wherein the upper module columns 22 and the lower module columns 32 are square steel pipes, the upper module beams 21 and the lower module beams 31 are H-shaped steel, and each upper module 20 and each lower module 30 are connected by full penetration butt welding seams. Wherein the upper receiving chamber 25 is formed at the bottom end of the upper module column 22, and the lower receiving chamber 35 is formed at the top end of the lower module column. The upper portion of the upper receiving chamber 25 includes an upper inner partition 23, and the lower portion of the lower receiving chamber 35 includes a lower inner partition 33, the upper inner partition 23 and the lower inner partition 33 serving to separate the upper receiving chamber 25 from the lower receiving chamber 35 with respect to the upper module post 22 and the lower module post 32. Preferably, the positions of the upper inner partition 23 and the lower inner partition 33 correspond to the flange of the module beam, so that the upper inner partition 23 and the lower inner partition 33 can transmit the tensile pressure of the flange of the module beam, and a closed space can be formed by the inner partition to facilitate pouring grouting material. Two of the upper modules 20 are arranged in parallel and are disposed adjacent to another two upper modules 20 which are also arranged in parallel but have the upper module beams 21 in opposite directions, so that the upper module columns 22 of the four upper modules 20 are disposed adjacent to each other. Similarly, the four lower modules 30 are divided into two groups, and four lower module columns 32 are also disposed adjacent to each other. It will be appreciated that in other embodiments, other numbers of upper modules 20 and lower modules 30 may be provided, and the upper module beams 21 and the lower module beams 31 may be provided to face in different directions, for example, two upper modules 20 connected to the upper portion of the connection member 10 may be provided, wherein the two upper module beams 21 are provided at 90 ° to each other, and similarly, two lower modules 30 may be provided to connect to the connection member 10, and two lower module beams 31 of the two lower modules 30 may be provided at 90 ° to each other.
As shown in fig. 2, the connector 10 according to an embodiment of the present invention includes a horizontal connection plate 12, in which the horizontal connection plate 12 has a substantially square plate shape, and 4 inner sleeves 11 having a square cylindrical shape are fixedly provided on upper and lower surfaces of the horizontal connection plate by welding or the like. In this embodiment, the inner sleeve 11 is formed of a square steel tube. It will be appreciated that in other embodiments not shown, the number of inner sleeves 11 may be adjusted according to the number of upper modules 20 and lower modules 30 that are connected at one node as desired. One axial end of each inner sleeve 11 is fixedly connected with the horizontal connecting plate 12 by welding or the like, and the other axial end extends away from the horizontal connecting plate in a direction perpendicular to the horizontal connecting plate. The circumferential outer side of the inner sleeve 11 is fixedly provided with a plurality of outwardly protruding inner pegs 13 by welding or the like. The upper receiving cavity 25 of the upper module 20 and the inner wall of the lower receiving cavity 35 of the lower module 30 are provided with inwardly protruding outer pegs 34. The sum of the width of each direction of the inner sleeve 11 and the length of the inner peg 13 of the corresponding surface is smaller than the width of each direction of the corresponding upper receiving cavity 25 or lower receiving cavity 35, and the difference between the width of each direction of the upper receiving cavity 25 or lower receiving cavity 35 and the length of the inner peg 13 of the corresponding surface is larger than the width of each direction of the inner sleeve 11, i.e. each inner sleeve 11 of the upper and lower parts of the connecting piece 10 can be inserted into a corresponding upper receiving cavity 25 or lower receiving cavity 35, respectively. In this embodiment, the inner peg 13 and the outer peg 34 each comprise a circular top plate and a connecting rod fixedly connected to the lower surface of the top plate, and the other end of the connecting rod is fixedly connected to the inner sleeve 11. The structures of the inner peg 13 and the outer peg 34 are used for forming stable connection with the solidified non-shrinkage high-strength grouting material 9 after the non-shrinkage high-strength grouting material 9 is poured, and the contact area between the pegs and the solidified grouting material is increased by the circular top plate, so that the fixing effect and the shear strength of the pegs are improved. It will be appreciated that this embodiment shows only one possible choice of the shape of the inner peg 13 and the outer peg 34, and that the inner peg 13 and the outer peg 34 may be provided in other shapes, provided that sufficient fixing effect and shear strength are ensured. The outer wall bottom end of the upper receiving chamber 25 and the outer wall top end of the lower receiving chamber 35 are preferably provided with a viscoelastic material such as rubber, so that a closed space is formed between the horizontal connection plate 12 and the upper receiving chamber 25 and the lower receiving chamber 35, preventing grouting material from flowing out when grouting after stacking the modules. After the connection is completed, the horizontal connection plate 12 separates the upper receiving chamber 25 from the lower receiving chamber 35, and the horizontal connection plate 12 is capable of transmitting a pulling pressure between the modules. Preferably, an avoidance groove is formed at the top end of each lower module column 32 and/or at the bottom end of each upper module column 22, so that after the upper module columns 22 are relatively engaged with the lower module columns 32, the horizontal connecting plate 12 can be accommodated in the avoidance groove, so that the upper module 20 and the lower module 30 are tightly attached, the upper and lower module beams are free from gaps, the vertical load of the upper module beam can be transmitted to achieve the purpose of the joint work of the upper and lower module beams under the vertical load effect, and the positioning effect of the connecting piece 10 can be achieved.
Referring additionally to fig. 6, preferably, a plurality of the inner pegs 13 are arranged in a plurality of vertical columns along the axial direction of the inner sleeve 11 on the circumferential side of the inner sleeve, and at the same time, a plurality of the outer pegs 34 are arranged in a plurality of vertical columns along the axial direction of the inner walls of the upper receiving cavity 25 and the lower receiving cavity 35 of the upper module 20 and the lower receiving cavity 35 of the lower module 30. Wherein the columns of the inner pins 13 and the columns of the outer pins 34 are staggered with each other in the horizontal direction, so that after the connector 10 is disposed in the upper and lower receiving chambers 25 and 35, the columns of the inner pins 13 are inserted between the columns of the outer pins 34, thereby arranging the inner pins 13 and the outer pins 34 with each other in the horizontal direction. After the non-shrinkage high-strength grouting material 9 is poured, the inner pin 13 and the outer pin 34 are relatively fixed through the solidified grouting material, and the inner pin 13 and the outer pin 34 are arranged in a staggered manner, so that the load distribution between the inner sleeve 11 and the upper module 20 and the lower module 30 after the fixation is more uniform, and the fixation effect is more reliable.
Referring to fig. 3 to 5, an upper injection port 26 penetrating outward is provided at an upper side in an axial direction of a side surface of each of the upper accommodation chambers 25, and similarly, a lower injection port 36 penetrating outward is provided at an upper side in an axial direction of a side surface of each of the lower accommodation chambers 35. The upper injection port 26 and the lower injection port 36 are used as injection ports for grouting material 40 during installation, and as shown in fig. 5, the grouting material 40 is filled in the fixing spaces between the upper side of the connection member 10 and the upper receiving chamber 25 and between the lower side of the connection member 10 and the lower receiving chamber 35, thereby fixing the connection member 10, the upper module 20 and the lower module 30 together. Preferably, the upper injection port 26 and the lower injection port 36 are provided on a plurality of sides of the upper receiving chamber 25 and the lower receiving chamber 35, respectively, so that the operation at the time of grouting is more convenient.
A method of installing a modular steel structure connection node using an inner sleeve grout connection according to one embodiment of the present invention will be described in detail with reference to the accompanying drawings. Referring to fig. 8, first, in step S1, the lower module columns 32 of each of the lower modules 30 are vertically disposed with the lower accommodation chamber 35 directed upward, and the 4 lower modules 30 are divided into two groups and are arranged in opposition (see above). The lower 4 inner sleeves 11 of the connector 10 are aligned with the 4 lower receiving cavities 35, respectively, with the inner pegs 13 of the connector 10 aligned with the outer pegs 34 in the lower receiving cavities 35. And then the lower part of the connector 10 is inserted into the lower receiving chamber 35 until the lower surface of the horizontal connection plate 12 of the connector 10 abuts against the top end of the outer wall of the lower receiving chamber 35. Thereafter, in step S2, the non-shrink high strength grouting material 9 is poured from the lower injection port 36 into the fixing space between the lower portion of the connection member 10 and the lower receiving chamber 35 until the fixing space is filled, and after the non-shrink high strength grouting material 9 is solidified, the connection member 10 is connected with the four lower modules 30. In a subsequent step S3, the 4 upper modules 20 are divided into 2 groups and arranged in opposite directions (see above), the upper receiving cavity 25 of each upper module 20 being vertically aligned with one inner sleeve 11 of the upper part of the connecting member 10, respectively, and the upper modules 20 being thus brought into opposed engagement with the lower modules 30 such that the upper module beam 21 of each upper module 20 is aligned with the lower module beam 31 of one lower module 30. Then, in step S4, the non-shrink high strength grouting material 9 is poured into the fixing space between the upper portion of the connecting member 10 and the upper receiving cavity 25 through the upper pouring opening 26 until the fixing space is filled, and after the non-shrink high strength grouting material 9 is solidified, the connecting member 10 is fixedly connected with the upper module 20, thereby completing the connection between the upper module 20 and the lower module 30.
The modular steel structure connecting node adopting the inner sleeve grouting connection adopts a simple structure to strengthen the stability of connection between steel structures. The connecting node is simple and quick to manufacture, large operation space is not required to be reserved near the connecting part during manufacturing connection, welding operation is not required, technical requirements on installers are low, the error tolerance range is large, cost is saved, building quality is improved, and the connecting node is very suitable for being popularized and used in various building application fields.
It should be noted that the present invention is not limited to the above embodiments, and those skilled in the art can make other changes according to the inventive spirit of the present invention, and these changes according to the inventive spirit of the present invention should be included in the scope of the present invention as claimed.
Claims (7)
1. The modular steel structure connecting node adopting inner sleeve grouting connection is used for connection among steel structure modules and is characterized by comprising an upper module column, an upper module beam, a lower module column, a lower module beam and connecting pieces, wherein each connecting piece comprises a horizontal connecting plate and at least two inner sleeves arranged on the surface of the horizontal connecting plate, the inner sleeves are fixed with the horizontal connecting plate, the side surfaces of the inner sleeves are provided with inner studs protruding outwards, the inner walls of the upper module column and the lower module column are provided with outer studs protruding inwards, the upper module column comprises an upper accommodating cavity, the lower module column comprises a lower accommodating cavity, each inner sleeve at the upper part of the connecting pieces is respectively arranged in the upper accommodating cavity of each upper module column, each inner sleeve at the lower part of the connecting pieces is respectively arranged in the lower accommodating cavity of each lower module column, grouting materials are arranged between the upper accommodating cavity and the upper part of the connecting pieces, between the lower accommodating cavity and the lower part of the connecting pieces, the grouting materials are used for fixing the upper module column, the lower module column and the connecting pieces,
the inner pins are arranged into a plurality of vertical columns on the circumferential side surface of the inner sleeve, meanwhile, the outer pins are arranged into a plurality of vertical columns in the inner walls of the upper accommodating cavity of the upper module column and the lower accommodating cavity of the lower module column, the vertical columns formed by the inner pins and the vertical columns formed by the outer pins are mutually staggered in the horizontal direction, the plurality of vertical columns of the inner pins are inserted between the plurality of vertical columns of the outer pins in the horizontal direction, the radial length of the inner pins is consistent with the radial length of the outer pins, the outer pins are close to the circumferential side surface of the inner sleeve, and the inner pins are close to the inner walls of the corresponding upper accommodating cavity or lower accommodating cavity;
and an avoidance groove is formed in the top end of each lower module column and/or the bottom end of each upper module column, so that the horizontal connecting plate can be accommodated in the avoidance groove after the upper module column and the lower module column are relatively jointed.
2. The modular steel structure connection node using an inner sleeve grouting connection of claim 1, wherein the inner pin and each of the outer pins comprises a circular top plate and a connecting rod fixedly connected with a lower surface of the circular top plate, and the other end of the connecting rod is fixedly connected with the inner sleeve.
3. The modular steel structure connection node adopting the inner sleeve grouting connection according to claim 2, wherein elastic materials are arranged at the bottom end of the outer wall of the upper accommodating cavity and the top end of the outer wall of the lower accommodating cavity, and a closed space is formed between the horizontal connection plate and the upper accommodating cavity and the lower accommodating cavity.
4. The modular steel structure connection node adopting inner sleeve grouting connection according to claim 1, wherein four inner sleeves are respectively arranged on the upper side and the lower side of the horizontal connection plate, four upper module columns are adjacently arranged in a four-by-four array manner, four upper module beams are divided into two groups, two groups of upper module beams are oppositely arranged on two sides of the four upper module columns, four lower module columns are adjacently arranged in a four-by-four array manner, four lower module beams are divided into two groups, and two groups of lower module beams are oppositely arranged on two sides of the four lower module columns.
5. The modular steel structure connection node adopting an inner sleeve grouting connection according to claim 1, wherein the upper accommodating cavity and the lower accommodating cavity further comprise an upper inner partition plate and a lower inner partition plate, and the positions of the upper inner partition plate and the lower inner partition plate correspond to the flanges of the upper module beam and the lower module beam respectively.
6. The modular steel structure connection node adopting the inner sleeve grouting connection according to claim 1, wherein an upper injection port penetrating outwards is arranged on the upper side of the axial direction of the side surface of the upper accommodating cavity, and a lower injection port penetrating outwards is arranged on the upper side of the axial direction of the side surface of the lower accommodating cavity.
7. A method of installing a modular steel structure connection node according to claim 6 using an inner sleeve grouting connection, comprising the steps of:
s1, vertically arranging lower module columns of each lower module, wherein the lower accommodating cavity faces upwards, arranging 4 lower module columns into a four-by-four array, aligning 4 inner sleeves at the lower part of the connecting piece with the 4 lower accommodating cavities respectively, aligning inner studs of the connecting piece with outer studs in the lower accommodating cavities, and inserting the lower part of the connecting piece into the lower accommodating cavities until the lower surface of a horizontal connecting plate of the connecting piece abuts against the top end of the outer wall of the lower accommodating cavity;
s2, pouring grouting material into a fixed space between the lower part of the connecting piece and the lower accommodating cavity through the lower injection opening until the fixed space is filled up, solidifying the grouting material,
s3, dividing the 4 upper modules into groups and arranging the upper accommodation cavities of each upper module oppositely, vertically aligning with one inner sleeve at the upper part of the connecting piece respectively, and further enabling the upper module to be oppositely jointed with the lower module so that the upper module beam of each upper module is aligned with the lower module beam of one lower module,
s4, pouring the grouting material into a fixed space between the upper part of the connecting piece and the upper accommodating cavity through the upper pouring opening until the fixed space is filled up, solidifying the grouting material, and completing connection of the upper module and the lower module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110450353.1A CN113216390B (en) | 2021-04-25 | 2021-04-25 | Modularized steel structure connecting node adopting inner sleeve grouting connection and mounting method |
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| CN202110450353.1A CN113216390B (en) | 2021-04-25 | 2021-04-25 | Modularized steel structure connecting node adopting inner sleeve grouting connection and mounting method |
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| CN113216390A CN113216390A (en) | 2021-08-06 |
| CN113216390B true CN113216390B (en) | 2023-08-11 |
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