CN111411703A - Composite connection node for coupled modular assembly type steel structure - Google Patents
Composite connection node for coupled modular assembly type steel structure Download PDFInfo
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- CN111411703A CN111411703A CN202010326302.3A CN202010326302A CN111411703A CN 111411703 A CN111411703 A CN 111411703A CN 202010326302 A CN202010326302 A CN 202010326302A CN 111411703 A CN111411703 A CN 111411703A
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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
- 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
- E04B2001/2418—Details of bolting
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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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Abstract
The invention relates to a composite connection node for a connected limb modularization assembly type steel structure, in particular to a connection node formed by combining an inner sleeve and angle steel, which is a node structure formed by connecting an upper module unit, a lower module unit and adjacent connected limb units in a connected limb modularization assembly type building through the inner sleeve, an angle steel connecting piece, a high-strength bolt and a long through bolt.
Description
Technical Field
The invention relates to a composite connection node for a jointed and modularized assembled steel structure, in particular to a connection node for compounding an inner sleeve and angle steel.
Background
The modular building is a building which is divided into a plurality of space modules, all structural frameworks, equipment, pipelines, decoration and fixed furniture in the modules are made, the decoration of the outer vertical surface can be finished, and the module components are transported to a construction site and assembled together like building blocks. The modular building is a high-level integrated assembly type building, is a high-level stage of building industrial development, has the technical advantages of environmental protection, high construction efficiency, convenience in disassembly and the like while realizing high prefabrication rate, and is highly consistent with the construction modes of standardized design, industrialized production, assembly construction and integrated decoration of the assembly type building.
The modular building units can be divided into steel structure modular units, concrete structure modular units and wood structure modular units according to different structural materials. Compared with the latter two, the steel structure module unit has light weight, high strength and convenient hoisting and transportation, and is widely applied. The steel structure modular building technical regulation (T/CECS507 plus 2018) and the light modular steel structure combined house technical standard (JGJ/T plus 466) 2019 issued by the China engineering construction standardization association, the housing and the urban and rural construction department in succession further promote the rapid development of the steel structure modular building industry in China.
Regarding the module layout and the structural system of the steel structure modular building, the relevant specifications and standards are as follows: in the technical standard of light modular steel structure combined houses (JGJ/T466-2019), 3.2.5 requires that modular building plane design adopts different stacking forms of plane movement, alternate drawing back, ladder cantilever arrangement, pyramid stacking and the like of standard modules to meet diversified building function requirements. The Steel Structure Module construction technical Specification (T/CECS507 and 2018)5.5.1 states that the module building can be divided into pure module structures, module-steel frame mixed structures, module-steel frame support mixed structures, module-cylinder mixed structures and the like according to different main lateral force resisting systems. "
Despite the rapid development of steel structure modular construction technology, there are some outstanding problems. Firstly, the size of a standard module unit is limited, and the different assembling and splicing modes realized by only changing the stacking mode of the standard module unit still have certain limitation, so that the floor area and the space layout of a building are difficult to flexibly adjust; secondly, in the technical code of steel structure module building (T/CECS507-2018)5.8.8, it is explicitly pointed out that the connection between module units is a key part of the steel structure module building, and the connection characteristics of multiple columns and multiple beams are provided, such as two columns and four beams of corner columns, four columns and eight beams of side columns and eight columns and sixteen beams of center columns, and the high strength and the good reliability are achieved; when the node connection among the module units is constructed on site, a fault-tolerant space is provided, and the construction, installation and detection are convenient, so that the modular building has higher requirements on the node performance, the installation error and the like of the connection among the module units; finally, the problem of 'multi-beam, multi-column and multi-plate' of the existing modular building can not be avoided. A research result of a paper of Seismic Overtength in branched structures of Modular Steel Buildings, which is taught by C.D. Anna, shows that the cooperative working state of a double-layer beam of a Modular structure is difficult to reach an ideal state, so that the stress performance of the structure generates larger difference; particularly, the problems of complex node structure, small connection rigidity, poor integrity and the like at the intersection of a plurality of members such as eight columns, sixteen beams and the like can cause extremely adverse effects on the whole bearing capacity and the seismic performance of the structure.
In view of the problems in the prior art, the applicant provides a jointed modular assembly type steel structure house in the patent with the application number of '202010029490.3' and the name of 'a jointed modular assembly type steel structure house', wherein the steel structure house is composed of an integrated room module unit, a jointed unit and an auxiliary unit, all the units are prefabricated in a factory and are transported to a site for assembly, and all the units are connected by bolts in the field assembly process. The standardized and modulized integrated room module units are assembled by adopting the coupling units with easily adjustable sizes, so that the problems of repeated waste of structural members, difficult connection, complex force transmission and the like caused by multiple beams, multiple columns and multiple plates of the existing module building are solved while the building layout is more flexible.
However, the improved content of the above patent is the layout and connection mode of the integrated module, no improvement is made on the node, the node is a key part of the building design of the steel structure integrated module, and the reliability of the module connection directly affects the overall performance of the structure. Compared with a traditional steel frame building or a traditional module building, the jointed modular assembly type building has obvious particularity on the demand of the joint, and specifically, the joint in the jointed modular assembly type building needs to complete horizontal connection of a jointed beam and an upper/lower module unit column simultaneously when realizing vertical splicing of an upper module column unit and a lower module beam column unit, and is different from the existing mode of realizing vertical connection of a square steel pipe column firstly and then realizing H-shaped steel beam connection at different heights, and (2) the beam and column unit connection joint of a lower module is connected by welding in a factory, vertical connection of the column units of the upper/lower module and horizontal connection of the upper/lower module and the H-shaped steel beam of the jointed unit through full bolts on site, which is different from the existing joint connection mode. Therefore, it is necessary to improve the adaptability of the node structure of the coupled modular prefabricated building.
In the coupled modular assembly type building provided by the applicant, the vertical connection required to be completed by the node is the connection between the lower module H-shaped steel beam and the square steel pipe column and the upper module unit square steel pipe column, the horizontal connection required by the node is the connection between the square steel pipe column and the H-shaped steel beam, and at present, the two types of nodes have certain structural forms, for example, the former comprises a welded connection, a bolt connection, a prestressed rib connection, a tenon-and-mortise connection and the like, and the latter comprises a sleeve composite connecting plate node, a column base-flange plate connecting node, a partition plate through node and the like. But the nodes do not meet the requirement of simultaneous beam column splicing, and the node structures cannot be directly applied to the coupled modular assembly type building system.
Disclosure of Invention
Aiming at the technical problem that the coupled modular assembly type building system does not have a corresponding node structure, the invention provides a composite connection node for the coupled modular assembly type building, which is a node structure formed by connecting an upper module unit, a lower module unit and adjacent coupled units in the coupled modular assembly type building through an inner sleeve, an angle steel connecting piece, a high-strength bolt and a long through bolt.
The node structure is used for simultaneously realizing the vertical connection between the upper module unit square steel pipe column and the lower module unit square steel pipe column and the horizontal connection between the upper module unit square steel pipe column and the lower module unit square steel pipe column and the H-shaped steel beam of the coupling unit, the component comprises the upper module unit square steel pipe column, the lower module unit square steel pipe column, the H-shaped steel beam of the coupling unit provided with an even type end plate, an inner sleeve, an upper angle steel connecting piece, a lower angle steel connecting piece, a high-strength bolt and a long through bolt, and the H-shaped steel beam of the coupling unit consists of an upper flange, a lower flange, a web plate and an even type end plate; the upper angle steel connecting piece and the lower angle steel connecting piece are right-angle connecting pieces with horizontal limbs and vertical limbs, junction parts in the upper module unit square steel pipe column and the lower module unit square steel pipe column are arranged in the inner sleeve, and are respectively connected with the upper module unit square steel pipe column and the lower module unit square steel pipe column, so that vertical connection of the upper module unit square steel pipe column and the lower module unit square steel pipe column is completed, the vertical limbs of the upper angle steel connecting piece and the horizontal limbs of the upper angle steel connecting piece are respectively bolted with the upper module unit square steel pipe column and the coupling unit H-shaped steel beam, and the vertical limbs of the lower angle steel connecting piece and the horizontal limbs of the lower angle steel connecting piece are respectively bolted with the lower module unit square steel pipe column and the coupling unit H-shaped steel.
Correspondingly, the connecting composite node for the coupled modular assembly type building provided by the invention can be divided into two forms, namely (1) a composite connecting node of the separated inner sleeve and the angle steel connecting piece and (2) a composite connecting node of the integrated inner sleeve and the angle steel connecting piece.
The component of the composite connection node of the separated inner sleeve and the angle steel connecting piece comprises an upper module unit square steel pipe column, a lower module unit square steel pipe column, a coupled unit H-shaped steel beam with an even end plate, an independent inner sleeve, an upper angle steel connecting piece, a lower angle steel connecting piece, a high-strength bolt and a long through bolt.
And the bolt holes are formed in the side wall of the independent inner sleeve, the bolt holes corresponding to the side wall of the independent inner sleeve are formed in the side wall of the upper end of the lower module unit square steel pipe column and the side wall of the lower end of the upper module unit square steel pipe column, and the high-strength bolts and the long through bolts respectively penetrate through the bolt holes corresponding to the lower module unit square steel pipe column, the upper module unit square steel pipe column and the independent inner sleeve to realize the tight vertical connection between the upper module unit square steel pipe column and the lower module unit square steel pipe.
Bolt holes are formed in the horizontal limb of the lower angle steel connecting piece and the vertical limb of the lower angle steel connecting piece, bolt holes corresponding to the vertical limb of the lower angle steel connecting piece and the horizontal limb of the lower angle steel connecting piece are formed in the side wall of the upper end of the lower module unit square steel pipe column and the lower flange of the H-shaped steel beam of the coupling unit respectively, the lower flange of the H-shaped steel beam of the coupling unit is connected with the lower module unit square steel pipe column through the lower angle steel connecting piece by using high-strength bolts, and pulling/pressing loads borne by the lower flange of the H-shaped steel beam of the coupling unit are transmitted to the lower module unit square steel pipe column.
The parallel and level type end plates of the H-shaped steel beams of the coupled units and the side faces of the lower module unit square steel pipe columns opposite to the parallel and level type end plates are provided with corresponding bolt holes, the parallel and level type end plates of the H-shaped steel beams of the coupled units are connected with the lower module unit square steel pipe columns and the independent inner sleeves through high-strength bolts, and shearing force and bending moment of the H-shaped steel beams of the coupled units are transmitted to the lower module unit square steel pipe columns and the independent inner sleeves.
Bolt holes are formed in the horizontal limb of the upper angle steel connecting piece and the vertical limb of the upper angle steel connecting piece, bolt holes corresponding to the vertical limb of the upper angle steel connecting piece and the horizontal limb of the upper angle steel connecting piece are formed in the side wall of the lower end of the upper module unit square steel pipe column and the upper flange of the upper limb unit H-shaped steel beam respectively, the horizontal limb of the upper angle steel connecting piece is connected with the upper flange of the upper limb unit H-shaped steel beam through high-strength bolts, the vertical limb of the upper angle steel connecting piece is connected with the upper module unit square steel pipe column through long through bolts, namely the upper angle steel connecting piece is used for connecting the upper limb unit H-shaped steel beam with the upper module unit square steel pipe column, and pulling/pressing loads borne by the upper flange of the upper limb unit H-shaped steel beam are transmitted to the upper module.
And finally, the close horizontal connection of the H-shaped steel beam of the coupled unit, the upper module unit square steel pipe column and the lower module unit square steel pipe column is completed.
And (2) the integrated inner sleeve and angle steel connecting piece composite connection node comprises an upper module unit square steel pipe column, a lower module unit square steel pipe column with a welded inner sleeve at the top, a coupled unit H-shaped steel beam with an even end plate, an upper angle steel connecting piece, a lower angle steel connecting piece, a high-strength bolt and a long through bolt, wherein the upper angle steel connecting piece and the lower angle steel connecting piece are right-angle connecting pieces with horizontal limbs and vertical limbs.
And bolt holes are formed in the side wall of the upper half part of the welding inner sleeve, bolt holes corresponding to the side wall of the welding inner sleeve are formed in the side wall of the lower end of the upper module unit square steel pipe column, and the long through bolts penetrate through the upper module unit square steel pipe column and the corresponding bolt holes of the welding inner sleeve to realize the tight vertical connection between the upper module unit square steel pipe column and the lower module unit square steel pipe column.
Bolt holes are formed in the horizontal limb of the lower angle steel connecting piece and the vertical limb of the lower angle steel connecting piece, bolt holes corresponding to the vertical limb of the lower angle steel connecting piece and the horizontal limb of the lower angle steel connecting piece are formed in the side wall of the upper end of the lower module unit square steel pipe column and the lower flange of the H-shaped steel beam of the coupling unit respectively, the lower flange of the H-shaped steel beam of the coupling unit is connected with the lower module unit square steel pipe column through the lower angle steel connecting piece by using high-strength bolts, and pulling/pressing loads borne by the lower flange of the H-shaped steel beam of the coupling unit are transmitted to the lower module unit square steel pipe column.
The side faces of the parallel and level type end plates of the H-shaped steel beams of the coupled units and the lower module unit square steel pipe columns with the tops opposite to the parallel and level type end plates are provided with corresponding bolt holes, the parallel and level type end plates of the H-shaped steel beams of the coupled units are connected with the lower module unit square steel pipe columns and the welding inner sleeves through high-strength bolts, and the shearing force and the bending moment of the H-shaped steel beams of the coupled units are transmitted to the lower module unit square steel pipe columns and the welding inner sleeves.
Bolt holes are formed in the horizontal limb of the upper angle steel connecting piece and the vertical limb of the upper angle steel connecting piece, bolt holes corresponding to the vertical limb of the upper angle steel connecting piece and the horizontal limb of the upper angle steel connecting piece are formed in the side wall of the lower end of the upper module unit square steel pipe column and the upper flange of the upper limb unit H-shaped steel beam respectively, the horizontal limb of the upper angle steel connecting piece is connected with the upper flange of the upper limb unit H-shaped steel beam through high-strength bolts, the vertical limb of the upper angle steel connecting piece is connected with the upper module unit square steel pipe column through long through bolts, namely the upper angle steel connecting piece is used for connecting the upper limb unit H-shaped steel beam with the upper module unit square steel pipe column, and pulling/pressing loads borne by the upper flange of the upper limb unit H-shaped steel beam are transmitted to the upper. And finally, the close horizontal connection of the H-shaped steel beam of the coupled unit, the upper module unit square steel pipe column and the lower module unit square steel pipe column is completed.
Furthermore, a left angle steel connecting piece can be prefabricated on the inward side of the lower end of the upper module unit square steel pipe column through welding, then the left angle steel connecting piece and the upper flange of the lower module H-shaped steel structure beam are connected through a high-strength bolt, and the tight vertical connection between the upper module unit square steel pipe column and the lower module unit square steel pipe column is further strengthened.
Furthermore, the upper angle steel connecting piece and/or the lower angle steel connecting piece are/is provided with stiffening ribs so as to improve the connection performance of the node.
The invention has the advantages of
The composite connection node for the coupled modular assembly type building simultaneously realizes vertical splicing of the upper module unit square steel pipe column and the lower module unit square steel pipe column and horizontal connection of the upper module unit square steel pipe column and the lower module unit square steel pipe column with the H-shaped steel beam, so that the upper/lower module units and the coupled units are tightly connected.
The composite connection node for the coupled modular assembly type building provided by the invention fully utilizes the characteristic that the top opening space of the square steel pipe column of the lower module unit is convenient for the installation of the high-strength bolt, and avoids the use of long through bolts and the adoption of the high-strength bolt to realize the connection of the inner sleeve and the square steel pipe column of the lower module unit and the connection of the square steel pipe column and the H-shaped steel beam of the coupled unit as far as possible.
The composite connecting node for the coupled modular assembly type building is not only suitable for plane nodes, but also suitable for space nodes.
The composite connection node for the coupled modular assembly type building completely realizes a green and efficient node connection mode of factory welding and field assembly.
Drawings
The above and/or other advantages of the invention will become more apparent and more readily appreciated from the following detailed description taken in conjunction with the accompanying drawings, which are given by way of illustration only and not by way of limitation, and in which: 1-lower module unit square steel pipe column, 2-lower module unit H-shaped steel structural beam, 3-independent inner sleeve, 4-lower angle steel connecting piece, 5-high-strength bolt, 6-limb unit H-shaped steel beam, 7-upper module unit square steel pipe column, 8-upper angle steel connecting piece, 9-long through bolt, 10-welding inner sleeve, 11-left angle steel connecting piece and 12-stiffening rib.
Fig. 1 is a schematic diagram of a factory welding structure of a square steel pipe column of a lower module unit and an H-shaped steel structural beam of the lower module unit.
Fig. 2 is a schematic view of a bolting structure of a square steel pipe column of a lower module unit, an independent inner sleeve and an H-shaped steel beam of a coupling unit.
Fig. 3 is a schematic view of a composite connection node of a separated inner sleeve and angle steel.
FIG. 4 is a schematic diagram of a factory welding structure of a lower module unit square steel pipe column/H-shaped steel structural beam with a welding inner sleeve.
Fig. 5 is a schematic diagram of a bolting structure of a lower module unit square steel pipe column and a coupling unit H-shaped steel beam with a welding inner sleeve.
FIG. 6 is a schematic view of a composite connection node of an integrated inner sleeve and an angle steel connecting piece.
FIG. 7 is a schematic view of a connection node of the split inner sleeve and the angle connection composite additional left angle connection.
FIG. 8 is a schematic view of a connection node of the left angle steel connecting member and the stiffener attached to the angle steel connecting member by the split inner sleeve.
FIG. 9 is a schematic view of a connection joint of the integral inner sleeve and the angle connection composite additional left angle connection.
FIG. 10 is a schematic view of the connection node of the integral inner sleeve and the angle connection with the left angle connection and the stiffener.
Detailed Description
Example 1
The embodiment provides a compound connected node of disconnect-type inner skleeve angle steel connecting piece, as shown in fig. 3, its component parts include upper portion module unit square steel tubular column 7, lower part module unit square steel tubular column 1, allies oneself with limb unit H shaped steel roof beam 6, independent inner skleeve 3, upper angle steel connecting piece 8, lower angle steel connecting piece 4, high strength bolt 5 and long through bolt 9.
The side wall of the independent inner sleeve 3 is provided with bolt holes, the side wall of the upper end of the lower module unit square steel pipe column 1 and the side wall of the lower end of the upper module unit square steel pipe column 7 are provided with bolt holes corresponding to the side wall of the independent inner sleeve 3, and the high-strength bolts 5 and the long through bolts 9 respectively penetrate through the bolt holes corresponding to the lower module unit square steel pipe column 1, the upper module unit square steel pipe column 7 and the independent inner sleeve 3 to realize the tight vertical connection of the upper module unit square steel pipe column 7 and the lower module unit square steel pipe column 1.
Bolt holes are formed in the horizontal limb of the lower angle steel connecting piece 4 and the vertical limb of the lower angle steel connecting piece, bolt holes corresponding to the vertical limb of the lower angle steel connecting piece 4 and the horizontal limb of the lower angle steel connecting piece 4 are formed in the upper end side wall of the lower module unit square steel pipe column 1 and the lower flange of the coupling unit H-shaped steel beam 6 respectively, the lower flange of the coupling unit H-shaped steel beam 6 is connected with the lower module unit square steel pipe column 1 through the lower angle steel connecting piece 4 by using high-strength bolts 5, and pulling/pressing loads borne by the lower flange of the coupling unit H-shaped steel beam 6 are transmitted to the lower module unit square steel pipe column 1.
The parallel and level type end plates of the H-shaped steel beams 6 of the coupled units and the side faces of the square steel pipe columns 1 of the lower module units, which are opposite to the parallel and level type end plates, are provided with corresponding bolt holes, the parallel and level type end plates of the H-shaped steel beams 6 of the coupled units are connected with the square steel pipe columns 1 of the lower module units and the independent inner sleeves 3 through high-strength bolts 5, and shearing force and bending moment of the H-shaped steel beams 6 of the coupled units are transmitted to the square steel pipe columns 1 of the lower module units and the independent inner sleeves 3.
Bolt holes are formed in the horizontal limb of the upper angle steel connecting piece 8 and the vertical limb of the upper angle steel connecting piece 8, bolt holes corresponding to the vertical limb of the upper angle steel connecting piece 8 and the horizontal limb of the upper angle steel connecting piece 8 are formed in the side wall of the lower end of the upper module unit square steel pipe column 7 and the upper flange of the limb coupling unit H-shaped steel beam 6 respectively, the horizontal limb of the upper angle steel connecting piece 8 is connected with the upper flange of the limb coupling unit H-shaped steel beam 6 through high-strength bolts 5, the vertical limb of the upper angle steel connecting piece 8 is connected with the upper module unit square steel pipe column 7 through long through bolts 9, namely the connection between the limb coupling unit H-shaped steel beam 6 and the upper module unit square steel pipe column 7 is achieved through the upper angle steel connecting piece 8, and the pulling/pressing load borne by the upper flange of the limb coupling unit H-shaped steel beam 6 is transmitted to the upper module.
Therefore, the tight horizontal connection of the H-shaped steel beam of the coupled unit, the upper module unit square steel pipe column 7 and the lower module unit square steel pipe column 1 is completed through the upper angle steel connecting piece and the lower angle steel connecting piece.
The combined node of the separated inner sleeve and the angle steel connecting piece provided by the embodiment is obtained by the following construction steps: (1) welding a lower module H-shaped steel structural beam 2 and a lower module unit square steel pipe column 1 in a factory, as shown in figure 1;
(2) the lower module unit square steel pipe column 1 is connected with the vertical limb of the lower angle steel connecting piece 4 through a high-strength bolt 5;
(3) an independent inner sleeve 3 is placed at the upper end of the lower module unit square steel pipe column 1, and a limb-connecting unit H-shaped steel beam 6 falls, a high-strength bolt 5 is connected with the independent inner sleeve 3 and the lower module unit square steel pipe column 1, and the high-strength bolt 5 is connected with the independent inner sleeve 3, the lower module unit square steel pipe column 1 and a limb-connecting unit H-shaped steel beam 6 flat end plate, as shown in figure 2.
(4) The upper module unit square steel pipe column 7 falls to the upper end part of the lower module unit square steel pipe column 1, an upper angle steel connecting piece 8 falls, a long through bolt 9 connects the vertical limb bottom of the upper angle steel connecting piece 8 to the upper module unit square steel pipe column 7 and the independent inner sleeve 3 within the height range of the top of the independent inner sleeve 3, the long through bolt 9 connects the vertical limb bottom of the upper angle steel connecting piece 8 to the independent inner sleeve 3 within the height range of the top of the independent inner sleeve 3, the upper module unit square steel pipe column 7 and the vertical limb of the upper angle steel connecting piece 8.
(5) The high-strength bolt 5 is respectively connected with the lower flange of the H-shaped steel beam 6 of the coupling unit and the horizontal limb of the lower angle steel connecting piece 4, and the upper flange of the H-shaped steel beam 6 of the coupling unit and the horizontal limb of the upper angle steel connecting piece 8.
This completes the connection as shown in fig. 3.
Example 2
The embodiment provides an integral inner skleeve and angle steel connecting piece composite connection node, and its component parts include upper portion module unit square steel tubular column 7, lower part module unit square steel tubular column 1 that there is welding inner skleeve 10 at the top, allies oneself with limb unit H shaped steel roof beam 6, upper angle steel connecting piece 8, lower angle steel connecting piece 4, high strength bolt 5 and long through bolt 9.
Bolt holes are formed in the side wall of the upper half portion of the welding inner sleeve 10, bolt holes corresponding to the side wall of the welding inner sleeve 10 are formed in the side wall of the lower end of the upper module unit square steel pipe column 7, and the long through bolts 9 penetrate through the bolt holes corresponding to the bolt holes of the upper module unit square steel pipe column 7 and the welding inner sleeve 10 to achieve tight vertical connection between the upper module unit square steel pipe column 7 and the lower module unit square steel pipe column 1.
Bolt holes are formed in the horizontal limb of the lower angle steel connecting piece 4 and the vertical limb of the lower angle steel connecting piece 4, bolt holes corresponding to the vertical limb of the lower angle steel connecting piece 4 and the horizontal limb of the lower angle steel connecting piece 4 are formed in the upper end side wall of the lower module unit square steel pipe column 1 and the lower flange of the coupling unit H-shaped steel beam 6 respectively, the lower flange of the coupling unit H-shaped steel beam 6 is connected with the lower module unit square steel pipe column 1 through the lower angle steel connecting piece 4 by using high-strength bolts 5, and pulling/pressing loads borne by the lower flange of the coupling unit H-shaped steel beam 6 are transmitted to the lower module unit square steel pipe column 1.
The side surfaces of the parallel and level type end plates of the connected limb unit H-shaped steel beams 6 and the lower module unit square steel pipe column 1 with the top opposite to the parallel and level type end plates are provided with corresponding bolt holes, the parallel and level type end plates of the connected limb unit H-shaped steel beams 6 are connected with the lower module unit square steel pipe column 1 and the welding inner sleeve 10 through high-strength bolts 5, and the shearing force and the bending moment of the connected limb unit H-shaped steel beams 6 are transmitted to the lower module unit square steel pipe column 1 and the welding inner sleeve 10.
Bolt holes are formed in the horizontal limb of the upper angle steel connecting piece 8 and the vertical limb of the upper angle steel connecting piece 8, bolt holes corresponding to the vertical limb of the upper angle steel connecting piece 8 and the horizontal limb of the upper angle steel connecting piece 8 are formed in the side wall of the lower end of the upper module unit square steel pipe column 7 and the upper flange of the limb coupling unit H-shaped steel beam 6 respectively, the horizontal limb of the upper angle steel connecting piece 8 is connected with the upper flange of the limb coupling unit H-shaped steel beam 6 through high-strength bolts 5, the vertical limb of the upper angle steel connecting piece 8 is connected with the upper module unit square steel pipe column 7 through long through bolts 9, namely the connection between the limb coupling unit H-shaped steel beam 6 and the upper module unit square steel pipe column 7 is achieved through the upper angle steel connecting piece 8, and the pulling/pressing load borne by the upper flange of the limb coupling unit H-shaped steel beam 6 is transmitted to the upper. Therefore, the close horizontal connection of the H-shaped steel beam 6 of the coupled unit, the upper module unit square steel pipe column 7 and the lower module unit square steel pipe column 1 is completed through the upper angle steel connecting piece and the lower angle steel connecting piece.
The integral inner sleeve and angle steel connecting piece combined node provided by the embodiment is obtained by the following construction and connection steps:
(1) welding the lower module unit H-shaped steel structural beam 2 and the lower module unit square steel tube 1 column with the top part provided with the welding inner sleeve 10 in a factory, as shown in FIG. 4;
(2) the lower module unit square steel pipe column 1 is connected with the vertical limb of the lower angle steel connecting piece 4 through a high-strength bolt 5;
(3) dropping the H-shaped steel beam 6 of the coupling unit, and connecting and welding the inner sleeve 10, the square steel pipe column 1 of the lower module unit and the flat end plate of the H-shaped steel beam 6 of the coupling unit by the high-strength bolt 5, as shown in figure 5;
(4) the upper module unit square steel pipe column 7 falls to the upper end portion of the lower module unit square steel pipe column 1, an upper angle steel connecting piece 8 falls, a long through bolt 9 connects the bottom of a vertical limb of the upper angle steel connecting piece 8 to the upper module unit square steel pipe column 7 and a welding inner sleeve 10 within the height range of the top of the welding inner sleeve 10, the long through bolt 9 connects the bottom of the vertical limb of the upper angle steel connecting piece 8 to the welding inner sleeve 10 within the height range of the top of the welding inner sleeve 10, the upper module unit square steel pipe column 7 and the vertical limb of the upper angle steel connecting piece 8.
(5) The high-strength bolt 5 is respectively connected with the lower flange of the H-shaped steel beam 6 of the coupling unit and the horizontal limb of the lower angle steel connecting piece 4, and the upper flange of the H-shaped steel beam 6 of the coupling unit and the horizontal limb of the upper angle steel connecting piece 8.
This completes the connection as shown in fig. 6.
Example 3
This embodiment provides a disconnect-type inner skleeve and angle steel connecting piece composite connection node, its major structure is the same with embodiment 1, in addition, still go to the inboard in 7 lower extremes of upper module unit square steel-pipe column through prefabricated left angle steel connecting piece 11 of welding, then connect left angle steel connecting piece 11 and 2 top flanges of lower part module H shaped steel structure roof beam through high strength bolt 5, further strengthen the inseparable vertical connection of upper module unit square steel-pipe column 7 and lower part module unit square steel-pipe column 1, as shown in figure 7.
Example 4
The present embodiment provides a composite connection node of a separate inner sleeve and an angle steel connector, the main structure of which is the same as that of embodiment 3, and in addition, stiffening ribs 12 are further added on an upper angle steel connector 8 and a lower angle steel connector 4 to improve the connection performance of the node, as shown in fig. 8.
Example 5
This embodiment provides an integral inner skleeve and angle steel connecting piece composite connection node, its major structure is the same with embodiment 2, in addition, still go to the inboard in 7 lower extremes of upper module unit square steel-pipe column through prefabricated left angle steel connecting piece 11 of welding, then connect left angle steel connecting piece 11 and 2 top flanges of lower part module H shaped steel structure roof beam through high strength bolt 5, further strengthen the inseparable vertical connection of upper module unit square steel-pipe column 7 and lower part module unit square steel-pipe column 1, as shown in fig. 9.
Example 6
The embodiment provides a composite connection node of an integral inner sleeve and an angle steel connecting piece, the main structure of the composite connection node is the same as that of embodiment 5, and in addition, stiffening ribs 12 are additionally arranged on an upper angle steel connecting piece 8 and a lower angle steel connecting piece 4 to improve the connection performance of the node, as shown in fig. 10.
Claims (6)
1. A composite connection node for a connected limb modularization assembly type steel structure is characterized in that the node is a node structure formed by connecting an upper/lower module unit and an adjacent connected limb unit in a connected limb modularization assembly type building through an inner sleeve, an angle steel connecting piece, a high-strength bolt and a long through bolt, the component members of the node comprise an upper module unit square steel pipe column, a lower module unit square steel pipe column, a connected limb unit H-shaped steel beam, an inner sleeve, an upper angle steel connecting piece, a lower angle steel connecting piece, a high-strength bolt and a long through bolt, and the connected limb unit H-shaped steel beam consists of an upper flange, a lower flange, a web plate and an even end plate; the upper angle steel connecting piece and the lower angle steel connecting piece are right-angle connecting pieces with horizontal limbs and vertical limbs; the inner sleeve is arranged in a junction of the upper module square steel pipe column and the lower module unit square steel pipe column and is connected with the upper module square steel pipe column and the lower module unit square steel pipe column respectively, so that vertical connection of the upper module square steel pipe column and the lower module unit square steel pipe column is completed, the vertical limb of the upper angle steel connecting piece and the horizontal limb of the upper angle steel connecting piece are bolted with the upper module unit square steel pipe column and the coupling unit H-shaped steel beam respectively, and the vertical limb of the lower angle steel connecting piece and the horizontal limb of the lower angle steel connecting piece are bolted with the lower module unit square steel pipe column and the coupling unit H-shaped steel beam respectively.
2. A composite connection node for a linked modular assembly type steel structure as claimed in claim 1, wherein the inner sleeve is divided into two forms of a separated inner sleeve and an integrated inner sleeve, and correspondingly, the composite connection node is divided into two forms of a separated inner sleeve and angle iron connector composite connection node and an integrated inner sleeve and angle iron connector composite connection node.
3. The composite connection node for the coupled modular assembly type steel structure according to claim 2, wherein the components of the composite connection node of the separated inner socket and the angle steel connector comprise an upper module unit square steel pipe column, a lower module unit square steel pipe column, a coupled unit H-shaped steel beam, an independent inner socket, an upper angle steel connector, a lower angle steel connector, a high-strength bolt and a long through bolt,
bolt holes are arranged on the side wall of the independent inner sleeve, bolt holes corresponding to the side wall of the independent inner sleeve are arranged on the side wall of the upper end of the lower module unit square steel pipe column and the side wall of the lower end of the upper module unit square steel pipe column, the high-strength bolt and the long through bolt respectively penetrate through the bolt holes corresponding to the lower module unit square steel pipe column, the upper module unit square steel pipe column and the independent inner sleeve to realize the tight vertical connection of the upper module unit square steel pipe column and the lower module unit square steel pipe column,
the horizontal limb of the lower angle steel connecting piece and the vertical limb of the lower angle steel connecting piece are both provided with bolt holes, the side wall of the upper end of the lower module unit square steel pipe column and the lower flange of the H-shaped steel beam of the coupling unit are respectively provided with bolt holes corresponding to the vertical limb of the lower angle steel connecting piece and the horizontal limb of the lower angle steel connecting piece, the lower flange of the H-shaped steel beam of the coupling unit is connected with the lower module unit square steel pipe column through the lower angle steel connecting piece by using high-strength bolts, and the pulling/pressing load borne by the lower flange of the H-shaped steel beam of the coupling unit is transmitted to the lower module unit square steel,
the parallel end plate of the H-shaped steel beam of the coupled unit and the side surface of the square steel pipe column of the lower module unit opposite to the parallel end plate are provided with corresponding bolt holes, the parallel end plate of the H-shaped steel beam of the coupled unit is simultaneously connected with the square steel pipe column of the lower module unit and the independent inner sleeve through high-strength bolts, the shearing force and the bending moment of the H-shaped steel beam of the coupled unit are transmitted to the square steel pipe column of the lower module unit and the independent inner sleeve,
bolt holes are formed in the horizontal limb of the upper angle steel connecting piece and the vertical limb of the upper angle steel connecting piece, bolt holes corresponding to the vertical limb of the upper angle steel connecting piece and the horizontal limb of the upper angle steel connecting piece are formed in the side wall of the lower end of the upper module unit square steel pipe column and the upper flange of the upper limb unit H-shaped steel beam respectively, the horizontal limb of the upper angle steel connecting piece is connected with the upper flange of the upper limb unit H-shaped steel beam through high-strength bolts, the vertical limb of the upper angle steel connecting piece is connected with the upper module unit square steel pipe column through long through bolts, namely the upper angle steel connecting piece is used for connecting the upper limb unit H-shaped steel beam with the upper module unit square steel pipe column, and pulling/pressing loads borne by the upper flange of the upper limb unit H-shaped steel beam are transmitted to the upper module.
4. The composite connection node for the jointed modular assembly type steel structure according to claim 2, wherein the composite connection node for the integral inner sleeve and the angle steel connector comprises an upper module unit square steel pipe column, a lower module unit square steel pipe column with a welding inner sleeve at the top, a jointed unit H-shaped steel beam, an upper angle steel connector, a lower angle steel connector, a high-strength bolt and a long through bolt,
bolt holes are arranged on the side wall of the upper half part of the welding inner sleeve, bolt holes corresponding to the side wall of the welding inner sleeve are arranged on the side wall of the lower end of the upper module unit square steel pipe column, the long through bolts penetrate through the upper module unit square steel pipe column and the bolt holes corresponding to the welding inner sleeve to realize the tight vertical connection of the upper module unit square steel pipe column and the lower module unit square steel pipe column,
the horizontal limb of the lower angle steel connecting piece and the vertical limb of the lower angle steel connecting piece are both provided with bolt holes, the side wall of the upper end of the lower module unit square steel pipe column and the lower flange of the H-shaped steel beam of the coupling unit are respectively provided with bolt holes corresponding to the vertical limb of the lower angle steel connecting piece and the horizontal limb of the lower angle steel connecting piece, the lower flange of the H-shaped steel beam of the coupling unit is connected with the lower module unit square steel pipe column through the lower angle steel connecting piece by using high-strength bolts, and the pulling/pressing load borne by the lower flange of the H-shaped steel beam of the coupling unit is transmitted to the lower module unit square steel,
the side surfaces of the parallel end plate of the H-shaped steel beam of the coupled unit and the lower module unit square steel pipe column with the top part right opposite to the parallel end plate are provided with corresponding bolt holes, the parallel end plate of the H-shaped steel beam of the coupled unit is simultaneously connected with the lower module unit square steel pipe column and the welding inner sleeve through high-strength bolts, the shearing force and the bending moment of the H-shaped steel beam of the coupled unit are transmitted to the lower module unit square steel pipe column and the welding inner sleeve, the horizontal limb of the upper angle steel connecting piece and the vertical limb of the upper angle steel connecting piece are both provided with bolt holes, the side wall of the lower end of the upper module unit square steel pipe column and the upper flange of the H-shaped steel beam of the coupled unit are respectively provided with bolt holes corresponding to the vertical limb of the upper angle steel connecting piece and the horizontal limb of the upper angle steel connecting piece, and the horizontal limb of the H-shaped steel beam, the vertical limbs of the upper angle steel connecting pieces are connected with the upper module unit square steel pipe column through long through bolts, namely, the upper angle steel connecting pieces are used for realizing the connection of the coupling unit H-shaped steel beams and the upper module unit square steel pipe column, and the pulling/pressing load borne by the upper flanges of the coupling unit H-shaped steel beams is transmitted to the upper module unit square steel pipe column.
5. The composite connection node for the jointed modular assembly type steel structure according to claim 3 or 4, wherein a left angle steel connecting piece is prefabricated at the inward side of the lower end of the square steel pipe column of the upper module unit through welding, and then the left angle steel connecting piece is connected with the upper flange of the H-shaped steel structure beam of the lower module unit through a high-strength bolt.
6. The composite connection node for a linked modular assembly type steel structure according to claim 5, wherein the upper angle steel connecting piece and/or the lower angle steel connecting piece are provided with stiffening ribs.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010326302.3A CN111411703A (en) | 2020-04-23 | 2020-04-23 | Composite connection node for coupled modular assembly type steel structure |
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| CN202010326302.3A CN111411703A (en) | 2020-04-23 | 2020-04-23 | Composite connection node for coupled modular assembly type steel structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585491A (en) * | 2021-07-30 | 2021-11-02 | 中铁房地产集团设计咨询有限公司 | Connecting node of assembled box type column and building comprising same |
| CN114809324A (en) * | 2022-06-08 | 2022-07-29 | 江苏科技大学 | Assembled steel wood integrated configuration |
-
2020
- 2020-04-23 CN CN202010326302.3A patent/CN111411703A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585491A (en) * | 2021-07-30 | 2021-11-02 | 中铁房地产集团设计咨询有限公司 | Connecting node of assembled box type column and building comprising same |
| CN114809324A (en) * | 2022-06-08 | 2022-07-29 | 江苏科技大学 | Assembled steel wood integrated configuration |
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