CN215802234U - Novel bolt connection node of assembled concrete column and girder steel - Google Patents
Novel bolt connection node of assembled concrete column and girder steel Download PDFInfo
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- CN215802234U CN215802234U CN202122121920.7U CN202122121920U CN215802234U CN 215802234 U CN215802234 U CN 215802234U CN 202122121920 U CN202122121920 U CN 202122121920U CN 215802234 U CN215802234 U CN 215802234U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 185
- 239000010959 steel Substances 0.000 title claims abstract description 185
- 239000004567 concrete Substances 0.000 title claims abstract description 60
- 239000011178 precast concrete Substances 0.000 claims abstract description 52
- 238000000034 method Methods 0.000 claims abstract description 8
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- 238000003466 welding Methods 0.000 claims description 14
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- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
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- 239000002699 waste material Substances 0.000 description 2
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- 238000005452 bending Methods 0.000 description 1
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- 239000000428 dust Substances 0.000 description 1
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Abstract
The utility model relates to a novel bolt connection node of an assembled concrete column and a steel beam, which belongs to the technical field of buildings and comprises a precast concrete upper column, a precast concrete lower column, a connecting piece, a high-strength bolt, a precast H-shaped steel beam and an embedded part, wherein the bottom of a flat steel is provided with two stiffening ribs, and two ends of each stiffening rib are respectively welded with a box-shaped embedded part and the flat steel; the I-shaped embedded part web plate is positioned at the center line of the upper flange of the I-shaped embedded part and the lower flange of the I-shaped embedded part and is vertically connected with the center line, and the I-shaped embedded part web plate is welded with the outer side of the box-shaped embedded part; the L-shaped connecting piece flange is positioned at the end part of the L-shaped connecting piece web and is perpendicular to the L-shaped connecting piece web, the utility model has the advantages that all processes are field installation of prefabricated parts, the construction speed is greatly improved, the construction time is greatly shortened, the cost is saved, the box-shaped embedded part replaces stirrups to restrain concrete in a core area, and the node strength is improved; the connection mode realizes full bolt connection.
Description
Technical Field
The utility model belongs to the technical field of buildings, and particularly relates to a novel bolt connection node of an assembled concrete column and a steel beam.
Background
With the acceleration of the urbanization process, the problems of environmental pollution and resource waste brought by the traditional building industry are more and more concerned, and the development of green buildings and the search of novel construction modes become a trend of the development of the current building industry. In order to adapt to the novel urbanization development, the technical specification of the prefabricated concrete structure is promulgated in 2014 in China. The fabricated concrete column-steel beam combined structure integrates the advantages of a steel structure and a concrete structure, can better meet the requirements of light large span, prefabricated assembly and rapid construction of a modern structure, realizes rapid repair and replacement of a damaged part of the structure, can accelerate the construction progress, reduces construction waste and dust pollution, and accords with the development direction of the future construction industry.
A series of earthquake disaster investigation researches discover that the damage of the joint of the building structure is the most important reason for causing the overall damage of the building, and the joint of the member joint is also a weak place of the assembled frame structure and is a key link for hindering the development of the assembled structure, so that a series of researches on the joint of the assembled structure are particularly important, wherein the connection problem of the core area of the beam-column connected joint is the key point for determining whether the overall building is safe and firm.
The connection mode of the assembled beam column node is divided into a dry connection mode and a wet connection mode. The joint connection in the assembly type structure at the present stage mostly adopts a wet connection mode, namely a post-cast section is arranged in a joint area, and concrete is cast in the joint area after the beam column members are spliced. The connection mode is more applied in an assembly type structure system at present, but the node structure is complex, assembly construction is not facilitated, the node connection integrity is poor, and the post-earthquake repair difficulty is large. The fabricated concrete column-steel beam joint has the characteristics of a fabricated structure and a combined structure, the steel beam with good bending resistance is adopted, the size of a component can be effectively reduced, the using amount of a template is reduced, the requirements of large span and light weight of the structure can be met, the concrete column has higher lateral stiffness compared with the steel column, the requirements of corrosion resistance and fire resistance of the structure are reduced, and the economic benefit is higher. All beam column sub-assemblies can be prefabricated in a factory, embedded parts are arranged in node areas during node connection, high-strength bolts are adopted for connection on site, the workload of on-site wet operation is greatly reduced, and the construction efficiency is improved. However, the concrete column-steel beam hybrid frame structure has more research and development on node processing, and on the contrary, the research and development on the connection node of the fabricated concrete column and the steel beam are less, and the advantage of the steel structure on dry connection cannot be fully exerted, so that it is necessary to research and develop a bolt connection node of the fabricated concrete column and the steel beam.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a novel bolt connection node of an assembled concrete column and a steel beam, which avoids the confusion of a construction site caused by wet operation, greatly improves the construction speed and the construction quality, and can effectively solve the connection problem of the assembled concrete column and the steel beam.
The technical scheme adopted by the utility model is as follows:
the novel bolt connection node of the assembled concrete column and the steel beam comprises a precast concrete upper column, a precast concrete lower column, a connecting piece, a high-strength bolt, a precast H-shaped steel beam and an embedded part, wherein the embedded part comprises an upper column embedded part and a lower column embedded part, the upper column embedded part is divided into two parts, namely a protruding connecting steel plate and a welding steel plate, the protruding connecting steel plate is vertically arranged at the top of the welding steel plate and welded into a square, and the protruding connecting steel plate and the welding steel plate are both provided with high-strength bolt holes; the lower column embedded part comprises a box-shaped embedded part, an I-shaped embedded part, flat steel and stiffening ribs, wherein the flat steel is provided with two rows of flat steel high-strength bolt holes which are arranged in rows transversely and longitudinally; the flat steel is horizontally welded on two sides of the box-shaped embedded part, two stiffening ribs are arranged at the bottom of the flat steel, and two ends of each stiffening rib are respectively welded with the box-shaped embedded part and the flat steel; the I-shaped embedded part is divided into three areas, namely an I-shaped embedded part upper flange, an I-shaped embedded part web and an I-shaped embedded part lower flange, the I-shaped embedded part web is positioned at the center line position of the I-shaped embedded part upper flange and the I-shaped embedded part lower flange and is vertically connected with the center line, the I-shaped embedded part upper flange and the I-shaped embedded part lower flange are arranged at two sides of the connecting line, a row of I-shaped embedded part upper flange high-strength bolt holes are formed in the I-shaped embedded part upper flange, the I-shaped embedded part upper flange high-strength bolt holes correspond to the flat steel high-strength bolt holes, and a row of I-shaped embedded part web high-strength bolt holes are formed in the I-shaped embedded part web; the lower flange of the I-shaped embedded part is welded with the top of the flat steel, and the web plate of the I-shaped embedded part is welded with the outer side of the box-shaped embedded part; the connecting piece comprises an L-shaped connecting piece and a square connecting piece, the L-shaped connecting piece is divided into two areas, namely an L-shaped connecting piece flange and an L-shaped connecting piece web plate, the L-shaped connecting piece flange is positioned at the end part of the L-shaped connecting piece web plate and is vertically arranged with the L-shaped connecting piece web plate, a square connecting piece high-strength bolt hole is formed in the square connecting piece, the prefabricated H-shaped steel beam comprises a prefabricated H-shaped steel beam upper flange, a prefabricated H-shaped steel beam web plate and a prefabricated H-shaped steel beam lower flange, a prefabricated concrete upper column longitudinal steel bar and a prefabricated concrete upper column stirrup are arranged in the prefabricated concrete upper column, and after all prefabricated concrete upper column steel bars are bound, an upper column embedded part welding steel plate is welded with the concrete column longitudinal steel bar; the prefabricated concrete lower column is internally provided with a prefabricated concrete lower column longitudinal steel bar and a prefabricated concrete lower column stirrup, and after all the steel bars of the prefabricated concrete lower column are bound, the box-shaped embedded part is welded with the prefabricated concrete upper column longitudinal steel bar; and after all the embedded parts are welded, concrete is poured, all the processes are finished in a factory, the precast concrete upper column and the precast concrete lower column are fixedly installed through the high-strength bolts through the precast concrete lower column bolt hole, the L-shaped connecting piece, the precast concrete column and the precast H-shaped steel beam are connected through the high-strength bolts, and the square connecting piece, the I-shaped embedded part and the precast H-shaped steel beam are connected through the high-strength bolts.
Furthermore, a row of I-shaped embedded part upper flange high-strength bolt holes and a row of I-shaped embedded part web high-strength bolt holes are formed in the I-shaped embedded part upper flange and the I-shaped embedded part web at the position 1/2 away from the plate respectively.
Furthermore, bolt holes of the protruding connecting steel plates are reserved at the plate separating ends 1/3, 1/2 and 2/3 of the protruding connecting steel plates respectively, the bolt holes of the protruding connecting steel plates are arranged in rows and columns, and the positions of the bolt holes of the protruding connecting steel plates correspond to the positions of the high-strength bolt holes of the box-shaped embedded part.
Furthermore, a row of L-shaped connecting piece flange high-strength bolt holes are formed in the L-shaped connecting piece flange, a row of L-shaped connecting piece web high-strength bolt holes are formed in the L-shaped connecting piece web, the L-shaped connecting piece web high-strength bolt holes are arranged in rows and columns, and the positions of the L-shaped connecting piece web high-strength bolt holes correspond to the positions of the I-shaped embedded part upper flange high-strength bolt holes and the prefabricated H-shaped steel beam flange high-strength bolt holes.
Furthermore, a row of holes for the high-strength bolts of the flanges of the prefabricated H-shaped steel beams are formed in the positions, which are 1/4 away from the flat steel length of the end parts, of the upper flanges of the prefabricated H-shaped steel beams and the lower flanges of the prefabricated H-shaped steel beams, two rows of holes for the high-strength bolts of the webs of the prefabricated H-shaped steel beams are formed in the webs of the prefabricated H-shaped steel beams, and the positions of the holes correspond to the positions of the holes for the high-strength bolts of the square connecting pieces.
Furthermore, the connecting side of the precast concrete lower column and the precast H-shaped steel beam is provided with a precast concrete lower column high-strength bolt hole, and the position of the precast concrete lower column high-strength bolt hole corresponds to the position of the L-shaped connecting piece flange high-strength bolt hole.
Furthermore, a square hole is formed in the welded steel plate, and the area of the hole formed in the welded steel plate is the area of the inner edge of the square enclosure structure formed by protruding the connecting steel plate; the square enclosure structure formed by the protruding connecting steel plates is a box-shaped column filled with concrete.
Furthermore, the square enclosure structure formed by the box-shaped embedded part is a middle rigid container with an opening at the end part.
The utility model has the advantages and beneficial effects that:
all the procedures of the utility model are the field installation of the prefabricated parts, thus greatly shortening the time required by the field construction of a construction site, greatly improving the construction speed and saving the cost; the connecting piece and the embedded part can effectively transmit force between the precast concrete column and the steel beam, the action effect is equal to that of cast-in-place, and the integrity of the structure is further enhanced; the box-shaped embedded part replaces stirrups to restrain concrete in a core area, so that the node strength is improved; the connection mode realizes full bolt connection, and can effectively solve the problems of construction pollution, high cost and the like.
Drawings
FIG. 1 is a layout of precast concrete columns, lower column embedded parts and reinforcing steel bars;
FIG. 2 is a layout view of lower column embedded parts and reinforcing steel bars;
FIG. 3 is a schematic view of an I-shaped embedment;
FIG. 4 is a schematic view of a lower column embedded part welding;
FIG. 5 is a layout view of upper column embedments and reinforcing steel bars;
FIG. 6 is a schematic view of an upper column embedment;
FIG. 7 is a schematic view showing the connection of the precast concrete upper column and the precast concrete lower column;
FIG. 8 is a schematic view of an L-shaped connector;
FIG. 9 is a schematic view of a prefabricated H-beam;
FIG. 10 is a schematic view of the connection between a precast concrete column and a precast H-shaped steel beam;
FIG. 11 is a front view of the connection of a precast concrete column and a precast H-shaped steel beam.
In the figure: 1 is a precast concrete upper column; 2, precast concrete lower columns; 3 is an upper column embedded part; 4, a box-shaped embedded part; 5 is an I-shaped embedded part; 6 is flat steel; 7 is a stiffening rib; 8 is an L-shaped connecting piece; 9 is a square embedded part; 10 is a high-strength bolt; 11, prefabricating an H-shaped steel beam; 1-1 is a precast concrete upper column longitudinal steel bar; 1-2 is a precast concrete upper column stirrup; 2-1 is a precast concrete lower column longitudinal steel bar; 2-2 is a precast concrete lower column stirrup; 2-3 are high-strength bolt holes of the precast concrete lower column; 3-1 is a welded steel plate; 3-2 is a protruding connecting steel plate; 3-3 is a high-strength bolt hole; 4-1 is a high-strength bolt hole of a box-shaped embedded part; 5-1 is an upper flange of an I-shaped embedded part; 5-2 is an I-shaped embedded part web plate; 5-3 is an I-shaped embedded part upper flange high-strength bolt hole; 5-4 are H-shaped embedded part web high-strength bolt holes; 5-5 is a bottom flange of the I-shaped embedded part; 6-1 is a flat steel high-strength bolt hole; 8-1 is an L-shaped connecting piece flange; 8-2 is an L-shaped connecting piece web plate; 8-3 is an L-shaped connecting piece flange high-strength bolt hole; 8-4 are high-strength bolt holes of the web plate of the L-shaped connecting piece; 9-1 is a square connecting piece high-strength bolt hole; 11-1, prefabricating an upper flange of the H-shaped steel beam; 11-2 is a prefabricated H-shaped steel beam web plate; 11-3 is a prefabricated H-shaped steel beam flange high-strength bolt hole; 11-4 are high-strength bolt holes of prefabricated H-shaped steel beam webs; 11-5 is a lower flange of the prefabricated H-shaped steel beam.
Detailed Description
In order to further illustrate the present invention, the following detailed description of the present invention is given with reference to the accompanying drawings and examples, which should not be construed as limiting the scope of the present invention.
Example (b): the bolt connection node of the novel assembled concrete column and the steel beam is shown in figures 1-7, the embedded part comprises an upper column embedded part 3 and a lower column embedded part, the upper column embedded part 3 is divided into two parts, namely a protruding connecting steel plate 3-2 and a welding steel plate 3-1, the protruding connecting steel plate 3-2 is vertically arranged at the top of the welding steel plate 3-1 and welded into a square, and the protruding connecting steel plate 3-2 and the welding steel plate 3-1 are both provided with high-strength bolt holes 3-3; the lower column embedded part comprises a box-shaped embedded part 4, an I-shaped embedded part 5, a flat steel 6 and stiffening ribs 7, wherein the flat steel 6 is provided with two rows of flat steel high-strength bolt holes 6-1, and the flat steel high-strength bolt holes 6-1 are arranged in rows transversely and longitudinally; the flat steel 6 is horizontally welded on two sides of the box-shaped embedded part 4, two stiffening ribs 7 are arranged at the bottom of the flat steel 6, and two ends of each stiffening rib 7 are respectively welded with the box-shaped embedded part 2 and the flat steel 4; the lower flange 5-5 of the I-shaped connecting piece is welded with the top of the flat steel 6, and the web plate 5-2 of the I-shaped connecting piece is welded with the outer side of the box-shaped embedded part 2; the precast concrete upper column 1 is internally provided with precast concrete upper column longitudinal steel bars 1-1 and precast concrete upper column stirrups 1-2 according to design specification requirements, and after all the steel bars of the precast concrete upper column 1 are bound, welding steel plates 3-1 and the precast concrete upper column longitudinal steel bars 1-1 are welded; the precast concrete lower column 2 is internally provided with precast concrete lower column longitudinal steel bars 2-1 and precast concrete lower column stirrups 2-2 according to the design specification requirements, and the box-shaped embedded part 4 is welded with the precast concrete upper column longitudinal steel bars 1-1 after all the steel bars of the precast concrete lower column 2 are bound; and pouring concrete after all the embedded parts are welded, wherein all the working procedures are finished in a factory.
As shown in fig. 3, the i-shaped embedded part 5 is divided into three areas, namely an i-shaped embedded part upper flange 5-1, an i-shaped embedded part lower flange 5-5 and a web 5-2, the i-shaped embedded part web 5-2 is positioned at the center line of the i-shaped embedded part upper flange 5-1 and the i-shaped embedded part lower flange 5-5 and is vertically connected with the center line, the i-shaped embedded part upper flange 5-1 and the i-shaped embedded part lower flange 5-5 are arranged on two sides of a connecting line, a row of i-shaped embedded part upper flange high-strength bolt holes 5-3 are formed in the position, away from a plate end 1/2, of the i-shaped embedded part upper flange 5-1, and a row of i-shaped embedded part web high-strength bolt holes 5-4 are formed in the position, away from a plate end 1/2, of the i-shaped embedded part web 5-2.
As shown in fig. 4, the square enclosure formed by the box-shaped embedded parts 4 is a middle rigid container with an open end.
As shown in fig. 6, three rows of high-strength bolt holes 3-3 are reserved at the positions 1/3, 1/2 and 2/3 of the protruded connecting steel plate 3-2 away from the plate ends, the high-strength bolt holes 3-3 are arranged in rows and columns, and the positions of the high-strength bolt holes 3-3 correspond to the positions of the high-strength bolt holes 4-1 of the box-shaped embedded part; the welded steel plate 3-1 is provided with a square hole, and the area of the hole formed in the welded steel plate 3-1 is the area of the inner edge of the square enclosure structure formed by the upper column protruding and connecting the steel plate 3-2; the square enclosure structure formed by the protruding connecting steel plates 3-2 is a box-shaped column filled with concrete.
As shown in fig. 7, the connecting side of the precast concrete lower column 2 and the precast H-shaped steel beam 11 is provided with precast concrete lower column high-strength bolt holes 2-3, and the positions of the precast concrete lower column high-strength bolt holes 2-3 correspond to the positions of the L-shaped connecting member flange bolt holes 8-3.
As shown in fig. 8, the L-shaped connecting piece is divided into two areas, namely an L-shaped connecting piece flange 8-1 and an L-shaped connecting piece web 8-2, the L-shaped connecting piece flange 8-1 is located at the end of the L-shaped connecting piece web 8-2 and is perpendicular to the L-shaped connecting piece web 8-2, a row of L-shaped connecting piece flange high-strength bolt holes 8-3 is formed in the L-shaped connecting piece flange 8-1, two rows of L-shaped connecting piece web high-strength bolt holes 8-4 are formed in the L-shaped connecting piece web 8-2, the L-shaped connecting piece web high-strength bolt holes 8-4 are arranged in rows and columns, and the positions of the L-shaped connecting piece flange high-strength bolt holes are corresponding to the positions of the i-shaped embedded part flange high-strength bolt holes 5-3 and the prefabricated H-shaped steel beam flange high-strength bolt holes 11-3.
As shown in fig. 9, a row of holes 11-3 for high-strength bolts for flanges of the prefabricated H-shaped steel beam are formed in 1/4, which are located at the positions of the prefabricated H-shaped steel beam upper flange 11-1 and the prefabricated H-shaped steel beam lower flange 11-5 and are away from the end flat steel 6, and two rows of holes 11-4 for high-strength bolts for webs of the prefabricated H-shaped steel beam are formed in the prefabricated H-shaped steel beam webs and correspond to the positions of the screw holes in the square connecting member 9.
As shown in fig. 10 to 11, the construction process of the bolt connection of the precast concrete column and the precast H-shaped steel beam is as follows: the concrete construction method of the assembled concrete column and steel beam bolt connection node is as follows: when the prefabricated H-shaped steel beam connecting structure is installed, the prefabricated concrete lower column 2 is fixed to a set position, the prefabricated concrete upper column 1 is hoisted to the upper portion of the lower column, a box-shaped column formed by the upper column is inserted into a box-shaped embedded part 4, the high-strength bolt hole 3-3 corresponds to the high-strength bolt hole 4-1 of the box-shaped embedded part, the prefabricated concrete upper column 1 and the prefabricated concrete lower column 2 are fixedly installed through the prefabricated concrete lower column high-strength bolt hole 2-3 through a high-strength bolt 10, the prefabricated H-shaped steel beam 11 is hoisted to the top of a flat steel 6, the prefabricated H-shaped steel beam 11 is in contact with an I-shaped embedded part 5, the L-shaped connecting piece 8 is placed at the top of the prefabricated H-shaped steel beam 11, the web 8-2 of the L-shaped connecting piece is in contact with the H-shaped steel beam 11, the flange 8-1 of the L-shaped connecting piece is in contact with the prefabricated concrete lower column 2, and the flange hole 8-3 of the L-shaped connecting piece is aligned with the high-strength bolt hole 2 of the prefabricated concrete lower column The method comprises the following steps that an L-shaped connecting piece web high-strength bolt hole 8-4 is aligned with an I-shaped embedded part upper flange high-strength bolt hole 5-3 and an H-shaped steel beam flange high-strength bolt hole 11-3, the L-shaped connecting piece 8 is connected with a precast concrete column 2 and a precast H-shaped steel beam 11 through a high-strength bolt 10, square connecting pieces 9 are arranged on two sides of the joint of the I-shaped embedded part 5 and the H-shaped steel beam 11, the square connecting pieces 9 are provided with 3 rows of square connecting piece high-strength bolt holes 9-1, the square connecting piece high-strength bolt holes 9-1 are aligned with the I-shaped embedded part web high-strength bolt holes 5-4 and the precast H-shaped steel beam web high-strength bolt holes 11-4, and the square connecting pieces 9 are connected with the I-shaped embedded part 5 and the precast H-shaped steel beam 11 through the high-strength bolt 10; when the prefabricated H-shaped steel beam 11 bears a load, the load on the beam is transmitted to the embedded part in the prefabricated concrete lower column 2 from the beam end connecting part through the high-strength bolt 10, the embedded part transmits the load to the longitudinal steel bar 2-1 of the prefabricated concrete lower column, when the prefabricated H-shaped steel beam 11 moves downwards, the box-shaped embedded part 4, the I-shaped embedded part 5, the L-shaped connecting part 8, the square connecting part 9 and the high-strength bolt 10 provide a tensile force, and when the prefabricated H-shaped steel beam 11 moves downwards, the I-shaped embedded part 5, the flat steel 6, the square connecting part 9 and the high-strength bolt 10 provide a tensile force.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. Novel bolted connection node of assembled concrete column and girder steel, its characterized in that: the prefabricated H-shaped steel beam connecting structure comprises a prefabricated concrete upper column (1), a prefabricated concrete lower column (2), a connecting piece, high-strength bolts (10), a prefabricated H-shaped steel beam (11) and embedded parts, wherein the embedded parts comprise an upper column embedded part (3) and a lower column embedded part, the upper column embedded part (3) is divided into two parts, namely a protruding connecting steel plate (3-2) and a welding steel plate (3-1), the protruding connecting steel plate (3-2) is vertically arranged at the top of the welding steel plate (3-1) and welded into a square, and the protruding connecting steel plate (3-2) and the welding steel plate (3-1) are both provided with high-strength bolt holes (3-3); the lower column embedded part comprises a box-shaped embedded part (4), an I-shaped embedded part (5), a flat steel (6) and stiffening ribs (7), wherein the flat steel (6) is provided with two rows of flat steel high-strength bolt holes (6-1), and the flat steel high-strength bolt holes (6-1) are arranged in rows transversely and longitudinally; the flat steel (6) is horizontally welded on two sides of the box-shaped embedded part (4), two stiffening ribs (7) are arranged at the bottom of the flat steel (6), and two ends of each stiffening rib (7) are respectively welded with the box-shaped embedded part (2) and the flat steel (6); the I-shaped embedded part (5) is divided into three areas of an I-shaped embedded part upper flange (5-1), an I-shaped embedded part web plate (5-2) and an I-shaped embedded part lower flange (5-5), the I-shaped embedded part web plate (5-2) is positioned at the center line position of the I-shaped embedded part upper flange (5-1) and the I-shaped embedded part lower flange (5-5) and is vertically connected with the center line, the I-shaped embedded part upper flange (5-1) and the I-shaped embedded part lower flange (5-5) are arranged at two sides of a connecting line, a row of I-shaped embedded part upper flange high-strength bolt holes (5-3) are formed in the I-shaped embedded part upper flange (5-1), the I-shaped embedded part upper flange high-strength bolt holes (5-3) correspond to the flat steel hole high-strength bolts (6-1), a row of I-shaped embedded part web plate high-strength bolt holes (5-4) are formed in the I-shaped embedded part web plate (5-2); the lower flange (5-5) of the I-shaped embedded part is welded with the top of the flat steel (6), and the web plate (5-2) of the I-shaped embedded part is welded with the outer side of the box-shaped embedded part (4); the connecting piece comprises an L-shaped connecting piece (8) and a square connecting piece (9), the L-shaped connecting piece (8) is divided into two areas of an L-shaped connecting piece flange (8-1) and an L-shaped connecting piece web (8-2), the L-shaped connecting piece flange (8-1) is positioned at the end part of the L-shaped connecting piece web (8-2) and is perpendicular to the L-shaped connecting piece web (8-2), a square connecting piece high-strength bolt hole (9-1) is formed in the square connecting piece (9), the prefabricated H-shaped steel beam (11) comprises a prefabricated H-shaped steel beam upper flange (11-1), a prefabricated H-shaped steel beam web (11-2) and a prefabricated H-shaped steel beam lower flange (11-5), a prefabricated concrete upper column longitudinal steel bar (1-1) and a prefabricated concrete upper column stirrup (1-2) are arranged in the prefabricated concrete upper column (1), after binding all steel bars of the precast concrete upper column (1), welding an upper column embedded part welding steel plate (3-1) with longitudinal steel bars (1-1) of the concrete column; the precast concrete lower column (2) is internally provided with precast concrete lower column longitudinal steel bars (2-1) and precast concrete lower column stirrups (2-2), and after all the steel bars of the precast concrete lower column (2) are bound, the box-shaped embedded part (4) is welded with the precast concrete upper column longitudinal steel bars (1-1); after all the embedded parts are welded, concrete is poured, all the processes are finished in a factory, the precast concrete upper column (1) and the precast concrete lower column (2) penetrate through the high-strength bolts (10) through the precast concrete lower column bolt holes (2-3) to be fixedly installed, the L-shaped connecting piece (8) and the precast concrete column (2) are connected with the precast H-shaped steel beam (11) through the high-strength bolts (10), and the square connecting piece (9) is connected with the I-shaped embedded part (5) and the precast H-shaped steel beam (11) through the high-strength bolts (10).
2. The novel bolted connection node of assembled concrete post and girder steel of claim 1, characterized in that: and a row of I-shaped embedded part upper flange high-strength bolt holes (5-3) and I-shaped embedded part web high-strength bolt holes (5-4) are respectively formed in the position 1/2 away from the plate of the I-shaped embedded part upper flange (5-1) and the I-shaped embedded part web (5-2).
3. The novel bolted connection node of assembled concrete post and girder steel of claim 1, characterized in that: and the protruding connecting steel plate bolt holes (3-3) are reserved at the plate separating ends 1/3, 1/2 and 2/3 of the protruding connecting steel plate (3-2), the protruding connecting steel plate bolt holes (3-3) are arranged in rows and columns, and the positions of the connecting steel plate bolt holes (3-3) correspond to the positions of the high-strength bolt holes (4-1) of the box-shaped embedded part.
4. The novel bolted connection node of assembled concrete post and girder steel of claim 1, characterized in that: the high-strength bolt holes (8-3) of the L-shaped connecting piece flange (8-1) are formed in one row, the high-strength bolt holes (8-4) of the L-shaped connecting piece web are formed in the L-shaped connecting piece web (8-2), the high-strength bolt holes (8-4) of the L-shaped connecting piece web are arranged in rows and columns, and the positions of the high-strength bolt holes correspond to the positions of the high-strength bolt holes (3-3) of the upper flange of the I-shaped embedded part and the positions of the high-strength bolt holes (11-3) of the flange of the prefabricated H-shaped steel beam.
5. The novel bolted connection node of assembled concrete post and girder steel of claim 1, characterized in that: a row of prefabricated H-shaped steel beam flange high-strength bolt holes (11-3) are formed in the positions 1/4, away from the length of the end flat steel (6), of the prefabricated H-shaped steel beam upper flange (11-1) and the prefabricated H-shaped steel beam lower flange (11-5), two rows of prefabricated H-shaped steel beam web high-strength bolt holes (11-4) are formed in the prefabricated H-shaped steel beam web (11-2), and the positions correspond to the positions of the square connecting piece high-strength bolt holes (9-1).
6. The novel bolted connection node of assembled concrete post and girder steel of claim 1, characterized in that: the connecting side of the precast concrete lower column (2) and the precast H-shaped steel beam (11) is provided with a precast concrete lower column high-strength bolt hole (2-3), and the position of the precast concrete lower column high-strength bolt hole (2-3) corresponds to the position of the L-shaped connecting piece flange high-strength bolt hole (8-3).
7. The novel bolted connection node of assembled concrete post and girder steel of claim 1, characterized in that: the welded steel plate (3-1) is provided with a square hole, and the area of the hole formed in the welded steel plate (3-1) is the area of the inner edge of the square enclosure structure formed by the protruding connecting steel plate (3-2); the square enclosure structure formed by the protruding connecting steel plates (3-2) is a box column filled with concrete.
8. The novel bolted connection node of assembled concrete post and girder steel of claim 1, characterized in that: the square enclosure structure formed by the box-shaped embedded parts (4) is a middle rigid container with an opening at the end part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122121920.7U CN215802234U (en) | 2021-09-03 | 2021-09-03 | Novel bolt connection node of assembled concrete column and girder steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122121920.7U CN215802234U (en) | 2021-09-03 | 2021-09-03 | Novel bolt connection node of assembled concrete column and girder steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215802234U true CN215802234U (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122121920.7U Expired - Fee Related CN215802234U (en) | 2021-09-03 | 2021-09-03 | Novel bolt connection node of assembled concrete column and girder steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215802234U (en) |
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2021
- 2021-09-03 CN CN202122121920.7U patent/CN215802234U/en not_active Expired - Fee Related
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