CN112922152A - Steel pipe concrete beam column structure for building and manufacturing method thereof - Google Patents
Steel pipe concrete beam column structure for building and manufacturing method thereof Download PDFInfo
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- CN112922152A CN112922152A CN202110062263.5A CN202110062263A CN112922152A CN 112922152 A CN112922152 A CN 112922152A CN 202110062263 A CN202110062263 A CN 202110062263A CN 112922152 A CN112922152 A CN 112922152A
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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
- E04B1/30—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
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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
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
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Abstract
The invention discloses a steel pipe concrete beam column structure for construction and a manufacturing method thereof, wherein the steel pipe concrete beam column structure comprises a steel pipe concrete column and U-shaped steel wrapped outside, the steel pipe concrete column comprises an upper section of steel pipe column and a lower section of steel pipe column, and the steel pipe concrete beam column structure is characterized in that: a shear-resistant mechanism is arranged between the upper-section steel pipe column and the lower-section steel pipe column, the shear-resistant mechanism comprises a connecting plate, the connecting plate is provided with an inner hole, and four symmetrical air holes are formed in the connecting plate around the inner hole; the shear steel cylinder which extends upwards and is positioned in the inner cavity of the upper section of the steel pipe column is welded at the edge of the inner hole, the shear steel cylinder is provided with an integrally formed short-edge cylinder which penetrates through the inner hole and extends downwards, and a connecting steel cylinder which extends downwards and is positioned in the inner cavity of the lower section of the steel pipe column is welded at the outer ring of the edge of the inner hole.
Description
Technical Field
The invention relates to the field of buildings, in particular to a steel pipe concrete beam column structure.
Background
CN105569191A discloses an outsourcing steel reinforced concrete composite beam-steel pipe column connected node, and specifically discloses: the steel pipe column external beam device comprises an upper through type partition plate, a lower through type partition plate, a steel pipe column and a lateral connecting plate, wherein the upper through type partition plate and the lower through type partition plate transversely penetrate through the steel pipe column and are arranged on the steel pipe column, the upper through type partition plate is used for connecting negative moment reinforcing steel bars, the lower through type partition plate and the lateral connecting plate form a U-shaped device on the column side, an external steel beam is directly placed in the U-shaped device, and pouring holes and air holes are formed in the upper through type partition. The upper and lower through type partition boards are connected with the column wall of the steel pipe column through welding; the upper side partition plate is positioned at the position of the hogging moment steel bar at the top of the plate and used for supporting and welding the hogging moment steel bar, the lower side through type partition plate is positioned at the position corresponding to the position of a steel beam bottom plate of the outer package, one end of the lateral connecting plate is connected with the outer wall of the steel pipe column in a welding mode, and the other end of the lateral connecting plate and the lower side through type partition plate are welded to form a U-shaped integral device and used for supporting and; the shape of the upper through type partition plate and the lower through type partition plate is determined according to the beam-column connecting direction and the beam-column section size, a certain distance extends outwards in the direction of the connecting beam for connection, and the width in the other directions only meets the structural requirement. The steel beam wrapped outside the composite beam is C-shaped with inward turned upper flange or cap-shaped with outward turned upper flange and is directly arranged in the U-shaped integral device, and the bottom plate and the side web plate of the steel beam wrapped outside are connected with the bottom plate and the side plate of the U-shaped integral device through high-strength bolts. The upper and lower through type partition boards are in welded connection with the column wall of the steel pipe column, the lateral direction of the lateral connecting board is in welded connection with the outer wall of the steel pipe column, and the lateral connecting board is in welded connection with the lower through type partition board. In the above patent, two partition boards penetrating through the steel pipe column are adopted, namely an upper through type partition board and a lower through type partition board. The steel pipe column is divided into three parts by the upper and lower through type clapboards in a short distance, and the middle part is very short. Meanwhile, the lateral connecting plates and the steel beams wrapped outside need to be welded at the middle part, and then concrete needs to be poured. As a result, the middle portion of the steel pipe column is subjected to a large pressure, and a large shear force cannot be received between the upper portion and the middle portion of the steel pipe column and between the lower portion and the middle portion of the steel pipe column.
Disclosure of Invention
The invention aims to provide a steel pipe concrete beam column structure with strong shearing resistance.
In order to achieve the above object, the present invention is realized by: the utility model provides a steel pipe concrete beam column structure for building, includes steel core concrete column and outsourcing U-shaped steel, the steel core concrete column includes upper segment steel-pipe column and hypomere steel-pipe column, its characterized in that: a shear-resistant mechanism is arranged between the upper-section steel pipe column and the lower-section steel pipe column, the shear-resistant mechanism comprises a connecting plate, the connecting plate is provided with an inner hole, and four symmetrical air holes are formed in the connecting plate around the inner hole; the shear steel cylinder which extends upwards and is positioned in the inner cavity of the upper section of the steel pipe column is welded at the edge of the inner hole, the shear steel cylinder is provided with an integrally formed short-edge cylinder which penetrates through the inner hole and extends downwards, a connecting steel cylinder which extends downwards and is positioned in the inner cavity of the lower section of the steel pipe column is welded at the outer ring of the edge of the inner hole, the shear steel cylinder and the connecting steel cylinder are concentrically arranged, the inner diameter of the connecting steel cylinder is larger than that of the shear steel cylinder, and an annular connecting wall of a connecting plate is arranged between the shear steel cylinder and the connecting steel cylinder; the part, extending upwards, of the shear steel cylinder is hollowed, a shear nail extending outwards is welded on the outer wall of the part, extending upwards, of the shear steel cylinder, the outer diameter of the shear steel cylinder is smaller than the inner diameter of the inner cavity of the upper section of the steel pipe column, and the radial length of the shear nail is not more than the distance between the inner cavity of the upper section of the steel pipe column and the outer wall of the shear steel cylinder; the connecting steel cylinder is composed of a plurality of arc-shaped steel sheets distributed in the circumferential direction, the tops of the adjacent arc-shaped steel sheets are connected, a gap is reserved at the bottom of the adjacent arc-shaped steel sheets, and the outer diameter of the connecting steel cylinder is consistent with the inner diameter of the inner cavity of the lower section of the steel pipe column; the steel pipe concrete column is characterized in that right-angle trapezoidal reinforcing ribs are welded among the arc-shaped steel sheets, the annular connecting wall and the short-edge cylinders, right-angle sides of the reinforcing ribs are welded with the inner side walls of the arc-shaped steel sheets, the bottom wall of the annular connecting wall and the outer side walls of the short-edge cylinders respectively, the connecting plate is welded with the upper-section steel pipe column and the lower-section steel pipe column, the two sides of the connecting plate exceed the steel pipe concrete column, and the exceeding parts are welded with negative-moment. Adopt the steel pipe concrete beam column structure for building that above-mentioned mode set up, through shear resistant mechanism, can realize linking together upper segment steel-pipe column and hypomere steel-pipe column reliably, improved the ability that the contact surface of upper and lower section steel-pipe column bore the shear force greatly.
Preferably, the shear nails are arranged in a plurality of rows along the circumferential direction of the shear steel cylinder, and each row is axially provided with a plurality of rows.
Preferably, the shear nails are uniformly arranged in six rows along the circumferential direction of the shear steel cylinder, and each row is uniformly provided with 4-8 shear nails along the axial direction.
In order to further ensure that the concrete in the steel pipe column is poured smoothly, the annular connecting wall between the shear steel cylinder and the connecting steel cylinder is provided with concrete through holes.
Preferably, the connecting steel cylinder is composed of four arc-shaped steel sheets, the bottom of each arc-shaped steel sheet is also arc-shaped, and the tops of two adjacent arc-shaped steel sheets are connected and the bottoms of the two adjacent arc-shaped steel sheets are separated; and each petal arc steel sheet is provided with a right trapezoid reinforcing rib, and the four reinforcing ribs are symmetrically arranged.
A construction method of a steel pipe concrete beam column structure for construction comprises the following steps:
the first step is as follows: prefabricating the shearing resistant mechanism in a factory, (1) punching the inner hole and the air hole on the connecting plate; (2) welding a hollowed shear steel cylinder at the edge of the inner hole, and welding shear nails on the outer wall of the shear steel cylinder extending upwards, wherein 6 rows of shear nails are welded along the shear steel cylinder, and 6 shear nails are welded along the axial direction of each row; (3) welding four arc-shaped steel sheets into a connecting steel cylinder end to end along the circumference, wherein the head parts of the arc-shaped steel sheets are connected and separated from the tail parts of the arc-shaped steel sheets, the head parts of the connecting steel cylinder are welded on one side, opposite to the shear steel cylinder, of the connecting plate, the shear steel cylinder and the connecting steel cylinder are concentrically arranged, and the inner diameter of the connecting steel cylinder is larger than that of the welding steel cylinder; (4) right-angled trapezoidal reinforcing ribs are welded among the outer wall of the short-edge cylinder of the shear steel cylinder, the annular connecting wall and the center of the inner wall of the arc-shaped steel sheet, and the reinforcing ribs on the four arc-shaped steel sheets are symmetrically arranged;
the second step is that: in a construction site, (1) welding the outsourcing U-shaped steel on two opposite side walls of the lower section of the steel pipe column, (2) sleeving a connecting steel cylinder of the shearing mechanism into an inner cavity of the lower section of the steel pipe column and sleeving a shearing steel cylinder into an inner cavity of the upper section of the steel pipe column, welding the connecting plate and the outer wall of the lower section of the steel pipe column, and welding a negative bending moment reinforcing steel bar on a part, extending out of the connecting plate.
Has the advantages that:
the shear-resistant mechanism is adopted, the shear steel cylinder arranged on the shear-resistant mechanism, the radial shear nails arranged on the shear steel cylinder, the connecting steel cylinder and the right-angled trapezoidal reinforcing ribs arranged on the connecting steel cylinder can improve the connection reliability of the upper steel pipe column and the lower steel pipe column, can also improve the shear resistance between the connecting surfaces of the upper steel pipe column and the lower steel pipe column and between the adjacent connecting surfaces, and avoids the fracture of the transverse surface of the column body caused by a shock disaster. The shear resistance of the upper section steel pipe column connecting surface section can be improved through the design of the shear nails, and the shear resistance of the lower section steel pipe column connecting surface section can be improved through the connecting steel cylinder, the short side cylinder and the right trapezoid-shaped reinforcing ribs. And the lateral force that the lower section steel-pipe column received is great in the vibrations in-process, and the lateral force that receives in lower section steel-pipe column joint face department can pass through right angle trapezoidal strengthen level transmits the shear force cylinder, can greatly avoid because of the fracture and the displacement of the joint face that vibrations lead to.
In addition, the shear steel cylinder adopts the hollow design, so that concrete can be poured easily, and the design of the shear nails is added, so that the connection strength of the upper-section steel pipe column can be reliably ensured. And the design that connects the steel cylinder and adopt four lamella arc steel sheet bottom separation tops to connect can be of value to with the combination of hypomere steel-pipe column inner chamber, improves and connects the reliability, and can be of value to the atress through right angle trapezoidal form strengthening rib and improve shear performance.
Drawings
Fig. 1 is an exploded view of a steel pipe concrete beam column structure according to examples 1 and 2;
FIG. 2 is a structural view of a steel pipe concrete beam column of examples 1 and 2;
fig. 3 is a plan view of the shear mechanism of embodiments 1 and 2;
fig. 4 is a beam-column sectional view of a concrete filled steel tube beam-column structure in example 2.
Description of reference numerals: the steel pipe concrete column comprises a steel pipe concrete column 1, an upper section steel pipe column 101, a lower section steel pipe column 102, outsourcing U-shaped steel 2, a shearing mechanism 3, a connecting plate 301, an inner hole 302, air holes 303, a shearing steel cylinder 304, a short side cylinder 305, a connecting steel cylinder 306, an annular connecting wall 307, shearing nails 308, an arc steel sheet 309, a right-angle trapezoidal reinforcing rib 310, a negative bending moment steel bar 4, a bending lug 6, a lower section right-angle steel 7 and an upper section right-angle steel 8.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, but the present invention is not limited to these embodiments, and any modifications or substitutions in the basic spirit of the embodiments will still fall within the scope of the present invention as claimed in the claims.
Example 1: as shown in fig. 1-3, a steel pipe concrete beam column structure for building comprises a steel pipe concrete column 1 and an outer U-shaped steel 2, wherein the steel pipe concrete column comprises an upper steel pipe column 101 and a lower steel pipe column 102, a shear mechanism 3 is arranged between the upper steel pipe column and the lower steel pipe column, the shear mechanism comprises a connecting plate 301, the connecting plate is provided with an inner hole 302, and four symmetrical air holes 303 are formed in the connecting plate around the inner hole. The steel pipe column comprises an inner hole, a shear steel cylinder 304 extending upwards and located in an inner cavity of the upper section of the steel pipe column is welded at the edge of the inner hole, the shear steel cylinder is provided with a short-edge cylinder 305 extending downwards and penetrating through the inner hole in an integrated mode, a connecting steel cylinder 306 extending downwards and located in an inner cavity of the lower section of the steel pipe column is welded at the outer ring of the edge of the inner hole, the shear steel cylinder and the connecting steel cylinder are arranged concentrically, the inner diameter of the connecting steel cylinder is larger than that of the shear steel cylinder, and an annular connecting wall 307 of a connecting plate is arranged between the shear steel cylinder and the connecting steel cylinder. The part of the shear steel cylinder extending upwards is hollowed out, the outer wall of the part of the shear steel cylinder extending upwards is welded with a shear nail 308 extending outwards, the outer diameter of the shear steel cylinder is smaller than the inner diameter of the inner cavity of the upper section of the steel pipe column, and the radial length of the shear nail is not more than the distance between the inner cavity of the upper section of the steel pipe column and the outer wall of the shear steel cylinder. The connecting steel cylinder is composed of a plurality of arc-shaped steel sheets 309 distributed in the circumferential direction, the tops of the adjacent arc-shaped steel sheets are connected, a gap is reserved at the bottom of the adjacent arc-shaped steel sheets, and the outer diameter of the connecting steel cylinder is basically the same as the inner diameter of the inner cavity of the lower steel pipe column. The welding has right angle trapezoidal form strengthening rib 310 between arc steel sheet, annular connecting wall and the minor face section of thick bamboo, the right angle limit of strengthening rib respectively with the lateral wall welding of the lateral wall of arc steel sheet, annular connecting wall and minor face section of thick bamboo.
In this embodiment, the shear nails are arranged in a plurality of rows along the circumferential direction of the shear steel cylinder, and each row is provided with a plurality of rows along the axial direction. In one embodiment of the present embodiment, the shear nails are uniformly arranged in six rows along the circumferential direction of the shear steel cylinder, and each row is uniformly arranged with 4-8 shear nails along the axial direction. In this embodiment, a concrete via hole is formed in the annular connecting wall between the shear steel cylinder and the connecting steel cylinder.
As another implementation manner in this embodiment, the annular connecting wall between the shear steel cylinder and the connecting steel cylinder is solid.
In an embodiment, the connecting steel cylinder is composed of four arc-shaped steel sheets, the bottom of each arc-shaped steel sheet is also arc-shaped, and the tops of two adjacent arc-shaped steel sheets are connected and separated from each other. And each section of arc-shaped steel sheet is provided with a right-angle trapezoidal reinforcing rib, and the four reinforcing ribs are symmetrically arranged.
In addition, the two sides of the connecting plate extend out of the concrete-filled steel tube column, the upper plate surface of the connecting plate is welded with the outer wall of the upper section of the steel tube column, the lower plate surface of the connecting plate is welded with the outer wall of the lower section of the steel tube column, and the extending parts of the two sides of the connecting plate are welded with negative-moment reinforcing steel bars 4; and the outer-wrapping U-shaped steel is welded on the outer wall of the lower section steel pipe column below the extending parts at the two sides of the connecting plate respectively.
A manufacturing method of a steel pipe concrete beam column for construction comprises the following steps:
the first step is as follows: prefabricating the shearing resistant mechanism in a factory, (1) punching the inner hole and the air hole on the connecting plate; (2) welding a hollowed shear steel cylinder at the edge of the inner hole, and welding shear nails on the outer wall of the shear steel cylinder extending upwards, wherein 6 rows of shear nails are welded along the shear steel cylinder, and 6 shear nails are welded along the axial direction of each row; (3) welding four arc-shaped steel sheets into a connecting steel cylinder end to end along the circumference, wherein the head parts of the arc-shaped steel sheets are connected and separated from the tail parts of the arc-shaped steel sheets, the head parts of the connecting steel cylinder are welded on one side, opposite to the shear steel cylinder, of the connecting plate, the shear steel cylinder and the connecting steel cylinder are concentrically arranged, and the inner diameter of the connecting steel cylinder is larger than that of the welding steel cylinder; (4) right-angled trapezoidal reinforcing ribs are welded among the outer wall of the short-edge cylinder of the shear steel cylinder, the annular connecting wall and the center of the inner wall of the arc-shaped steel sheet, and the reinforcing ribs on the four arc-shaped steel sheets are symmetrically arranged;
the second step is that: in a construction site, (1) welding the outsourcing U-shaped steel on two opposite side walls of the lower section of the steel pipe column, (2) sleeving a connecting steel cylinder of the shearing mechanism into an inner cavity of the lower section of the steel pipe column and sleeving a shearing steel cylinder into an inner cavity of the upper section of the steel pipe column, welding the connecting plate and the outer wall of the lower section of the steel pipe column, and welding a negative bending moment reinforcing steel bar on a part, extending out of the connecting plate.
The building steel pipe concrete beam column structure of this embodiment, adopt shear mechanism, through the shear force steel cylinder that sets up on the shear mechanism and the radial shear force nail that sets up on the shear force steel cylinder, connect the reinforcing rib of the right angle trapezoidal form that sets up on the steel cylinder and the connection steel cylinder, can improve the connection reliability of upper segment steel-pipe column and hypomere steel-pipe column, also can improve between the connection face of upper segment steel-pipe column and hypomere steel-pipe column and near the regional shearing performance of connection face, avoid leading to the transverse plane fracture of cylinder when taking place the vibrations calamity. The shear resistance of the upper section steel pipe column connecting surface section can be improved through the design of the shear nails, and the shear resistance of the lower section steel pipe column connecting surface section can be improved through the connecting steel cylinder, the short side cylinder and the right trapezoid-shaped reinforcing ribs. And the lateral force that the lower section steel-pipe column received is great in the vibrations in-process, and the lateral force that receives in lower section steel-pipe column joint face department can pass through right angle trapezoidal strengthen level transmits the shear force cylinder, can greatly avoid because of the fracture and the displacement of the joint face that vibrations lead to.
In addition, the shear steel cylinder adopts the hollow design, so that concrete can be poured easily, and the design of the shear nails is added, so that the connection strength of the upper-section steel pipe column can be reliably ensured. And the design that connects the steel cylinder and adopt four lamella arc steel sheet bottom separation tops to connect can be of value to with the combination of hypomere steel-pipe column inner chamber, improves and connects the reliability, and can be of value to the atress through right angle trapezoidal form strengthening rib and improve shear performance.
Example 2: as shown in fig. 1-4, a steel pipe concrete beam column structure for building comprises a steel pipe concrete column 1 and an outer U-shaped steel 2, wherein the steel pipe concrete column comprises an upper steel pipe column 101 and a lower steel pipe column 102, a shear-resistant mechanism 3 is arranged between the upper steel pipe column and the lower steel pipe column, the shear-resistant mechanism comprises a connecting plate 301, the connecting plate is provided with an inner hole, and four symmetrical air holes are formed in the connecting plate around the inner hole. The shear steel cylinder is welded at the edge of the inner hole and upwards extends out of the inner cavity of the upper section of the steel pipe column, the shear steel cylinder is provided with an integrally formed short-edge cylinder penetrating through the inner hole and extending downwards, a connecting steel cylinder extending downwards and located in the inner cavity of the lower section of the steel pipe column is welded at the outer ring of the edge of the inner hole, the shear steel cylinder and the connecting steel cylinder are concentrically arranged, the inner diameter of the connecting steel cylinder is larger than that of the shear steel cylinder, and an annular connecting wall of a connecting plate is arranged between the shear steel cylinder and the connecting steel cylinder. The part that the shear force steel cylinder upwards stretches out is the fretwork form and the welding has the shear force nail that outwards stretches out on the outer wall of the part that upwards stretches out of shear force steel cylinder, the external diameter of shear force steel cylinder is less than the internal diameter of upper segment steel-pipe column inner chamber, just the radial length of shear force nail is no longer than the upper segment steel-pipe column inner chamber with the interval of shear force steel cylinder outer wall. The connecting steel cylinder is composed of a plurality of arc-shaped steel sheets distributed in the circumferential direction, the tops of the adjacent arc-shaped steel sheets are connected, a gap is reserved at the bottom of the adjacent arc-shaped steel sheets, and the outer diameter of the connecting steel cylinder is basically the same as the inner diameter of the inner cavity of the lower section of the steel pipe column. The welding has right angle trapezoidal form strengthening rib between arc steel sheet, annular connecting wall and the minor face section of thick bamboo, the right angle limit of strengthening rib respectively with the lateral wall welding of the lateral wall of arc steel sheet, annular connecting wall and minor face section of thick bamboo.
In this embodiment, the shear nails are arranged in a plurality of rows along the circumferential direction of the shear steel cylinder, and each row is provided with a plurality of rows along the axial direction. In one embodiment of the present embodiment, the shear nails are uniformly arranged in six rows along the circumferential direction of the shear steel cylinder, and each row is uniformly arranged with 4-8 shear nails along the axial direction. In this embodiment, a concrete via hole is formed in the annular connecting wall between the shear steel cylinder and the connecting steel cylinder.
As another implementation manner in this embodiment, the annular connecting wall between the shear steel cylinder and the connecting steel cylinder is solid.
In an embodiment, the connecting steel cylinder is composed of four arc-shaped steel sheets, the bottom of each arc-shaped steel sheet is also arc-shaped, and the tops of two adjacent arc-shaped steel sheets are connected and separated from each other. And each section of arc-shaped steel sheet is provided with a right-angle trapezoidal reinforcing rib, and the four reinforcing ribs are symmetrically arranged.
In addition, the two sides of the connecting plate extend out of the concrete-filled steel tube column, the upper plate surface of the connecting plate is welded with the outer wall of the upper section of the steel tube column, the lower plate surface of the connecting plate is welded with the outer wall of the lower section of the steel tube column, and the extending parts of the two sides of the connecting plate are welded with negative-moment reinforcing steel bars; and the outer-wrapping U-shaped steel is welded on the outer wall of the lower section steel pipe column below the extending parts at the two sides of the connecting plate respectively.
In this embodiment the outer coated U-shaped steel has a U-shaped section with outwardly extending ears 6 at the top of the U-shaped section. In addition, in this embodiment, the left and right sides of the outer-coated U-shaped steel are respectively connected with lower right angle steel 7, the opening of the lower right angle steel is upward and inward, and the lower right angle steel is partially welded with the folded lug of the outer-coated U-shaped steel and partially welded with the outer wall of the lower steel pipe column. And the upper section steel pipe column is welded with an upper section right angle steel 8 which is symmetrical with the lower section right angle steel and has a downward inward opening, and the upper section right angle steel is welded with the upper section steel pipe column. The upper right angle steel, the lower right angle steel and the U-shaped steel limit eight truncated angles of the steel beam. In this embodiment, the height of the shear steel cylinder in the upper section of the steel pipe column is not lower than that of the upper section of the right-angle steel.
A manufacturing method of a steel pipe concrete beam column for construction comprises the following steps:
the first step is as follows: prefabricating the shearing resistant mechanism in a factory, (1) punching the inner hole and the air hole on the connecting plate; (2) welding a hollowed shear steel cylinder at the edge of the inner hole, and welding shear nails on the outer wall of the shear steel cylinder extending upwards, wherein 6 rows of shear nails are welded along the shear steel cylinder, and 6 shear nails are welded along the axial direction of each row; (3) welding four arc-shaped steel sheets into a connecting steel cylinder end to end along the circumference, wherein the head parts of the arc-shaped steel sheets are connected and separated from the tail parts of the arc-shaped steel sheets, the head parts of the connecting steel cylinder are welded on one side, opposite to the shear steel cylinder, of the connecting plate, the shear steel cylinder and the connecting steel cylinder are concentrically arranged, and the inner diameter of the connecting steel cylinder is larger than that of the welding steel cylinder; (4) right-angled trapezoidal reinforcing ribs are welded among the outer wall of the short-edge cylinder of the shear steel cylinder, the annular connecting wall and the center of the inner wall of the arc-shaped steel sheet, and the reinforcing ribs on the four arc-shaped steel sheets are symmetrically arranged;
the second step is that: in a construction site, (1) the outer U-shaped steel and the lower right-angle steel are welded on two opposite side walls of the lower steel pipe column, (2) the upper right-angle steel is welded on two opposite side walls of the upper steel pipe column, (3) the connecting steel cylinder of the shearing mechanism is sleeved in an inner cavity of the lower steel pipe column, the shearing steel cylinder is sleeved in an inner cavity of the upper steel pipe column, the outer walls of the connecting plate and the upper steel pipe column are welded, the outer walls of the connecting plate and the lower steel pipe column are welded, and negative-moment reinforcing steel bars are welded on the part, extending out of the connecting plate.
The building steel pipe concrete beam column structure of this embodiment, adopt shear mechanism, through the shear force steel cylinder that sets up on the shear mechanism and the radial shear force nail that sets up on the shear force steel cylinder, connect the reinforcing rib of the right angle trapezoidal form that sets up on the steel cylinder and the connection steel cylinder, can improve the connection reliability of upper segment steel-pipe column and hypomere steel-pipe column, also can improve between the connection face of upper segment steel-pipe column and hypomere steel-pipe column and near the regional shearing performance of connection face, avoid leading to the transverse plane fracture of cylinder when taking place the vibrations calamity. The shear resistance of the upper section steel pipe column connecting surface section can be improved through the design of the shear nails, and the shear resistance of the lower section steel pipe column connecting surface section can be improved through the connecting steel cylinder, the short side cylinder and the right trapezoid-shaped reinforcing ribs. And the lateral force that the lower section steel-pipe column received is great in the vibrations in-process, and the lateral force that receives in lower section steel-pipe column joint face department can pass through right angle trapezoidal strengthen level transmits the shear force cylinder, can greatly avoid because of the fracture and the displacement of the joint face that vibrations lead to.
In addition, in the embodiment, the 8 corners of the section of the T-shaped steel beam are limited, so that the connection surface of the steel beam and the steel column is ensured to be more reliable, the connection surface of the steel beam and the steel column is prevented from being broken and displaced during vibration, and the reliability of the beam-column joint can be improved by matching the shearing resistant mechanism.
Claims (6)
1. The utility model provides a steel pipe concrete beam column structure for building, includes steel core concrete column and outsourcing U-shaped steel, the steel core concrete column includes upper segment steel-pipe column and hypomere steel-pipe column, its characterized in that: a shear-resistant mechanism is arranged between the upper-section steel pipe column and the lower-section steel pipe column, the shear-resistant mechanism comprises a connecting plate, the connecting plate is provided with an inner hole, and four symmetrical air holes are formed in the connecting plate around the inner hole; the shear steel cylinder which extends upwards and is positioned in the inner cavity of the upper section of the steel pipe column is welded at the edge of the inner hole, the shear steel cylinder is provided with an integrally formed short-edge cylinder which penetrates through the inner hole and extends downwards, a connecting steel cylinder which extends downwards and is positioned in the inner cavity of the lower section of the steel pipe column is welded at the outer ring of the edge of the inner hole, the shear steel cylinder and the connecting steel cylinder are concentrically arranged, the inner diameter of the connecting steel cylinder is larger than that of the shear steel cylinder, and an annular connecting wall of a connecting plate is arranged between the shear steel cylinder and the connecting steel cylinder; the part, extending upwards, of the shear steel cylinder is hollowed, a shear nail extending outwards is welded on the outer wall of the part, extending upwards, of the shear steel cylinder, the outer diameter of the shear steel cylinder is smaller than the inner diameter of the inner cavity of the upper section of the steel pipe column, and the radial length of the shear nail is not more than the distance between the inner cavity of the upper section of the steel pipe column and the outer wall of the shear steel cylinder; the connecting steel cylinder is composed of a plurality of arc-shaped steel sheets distributed in the circumferential direction, the tops of the adjacent arc-shaped steel sheets are connected, a gap is reserved at the bottom of the adjacent arc-shaped steel sheets, and the outer diameter of the connecting steel cylinder is consistent with the inner diameter of the inner cavity of the lower section of the steel pipe column; the steel pipe concrete column is characterized in that right-angle trapezoidal reinforcing ribs are welded among the arc-shaped steel sheets, the annular connecting wall and the short-edge cylinders, right-angle sides of the reinforcing ribs are welded with the inner side walls of the arc-shaped steel sheets, the bottom wall of the annular connecting wall and the outer side walls of the short-edge cylinders respectively, the connecting plate is welded with the upper-section steel pipe column and the lower-section steel pipe column, the two sides of the connecting plate exceed the steel pipe concrete column, and the exceeding parts are welded with negative-moment.
2. A steel pipe concrete beam column structure for construction as claimed in claim 1, wherein: the shear nails are arranged in multiple rows along the circumferential direction of the shear steel cylinder, and each row is provided with multiple rows along the axial direction.
3. A steel pipe concrete beam column structure for construction as claimed in claim 2, wherein: six rows of shear nails are uniformly arranged along the circumferential direction of the shear steel cylinder, and 4-8 shear nails are uniformly arranged along the axial direction of each row.
4. A steel pipe concrete beam column structure for construction as claimed in claim 3, wherein: and a concrete via hole is formed in the annular connecting wall between the shear steel cylinder and the connecting steel cylinder.
5. A steel pipe concrete beam column structure for construction as claimed in claim 4, wherein: the connecting steel cylinder is composed of four arc-shaped steel sheets, the bottom of each arc-shaped steel sheet is also arc-shaped, and the tops of two adjacent arc-shaped steel sheets are connected and separated from each other; and each petal arc steel sheet is provided with a right trapezoid reinforcing rib, and the four reinforcing ribs are symmetrically arranged.
6. A method for manufacturing a steel pipe concrete beam and column structure for construction according to claim 5, comprising the following steps:
the first step is as follows: prefabricating the shearing resistant mechanism in a factory, (1) punching the inner hole and the air hole on the connecting plate; (2) welding a hollowed shear steel cylinder at the edge of the inner hole, and welding shear nails on the outer wall of the shear steel cylinder extending upwards, wherein 6 rows of shear nails are welded along the shear steel cylinder, and 6 shear nails are welded along the axial direction of each row; (3) welding four arc-shaped steel sheets into a connecting steel cylinder end to end along the circumference, wherein the head parts of the arc-shaped steel sheets are connected and separated from the tail parts of the arc-shaped steel sheets, the head parts of the connecting steel cylinder are welded on one side, opposite to the shear steel cylinder, of the connecting plate, the shear steel cylinder and the connecting steel cylinder are concentrically arranged, and the inner diameter of the connecting steel cylinder is larger than that of the welding steel cylinder; (4) right-angled trapezoidal reinforcing ribs are welded among the outer wall of the short-edge cylinder of the shear steel cylinder, the annular connecting wall and the center of the inner wall of the arc-shaped steel sheet, and the reinforcing ribs on the four arc-shaped steel sheets are symmetrically arranged;
the second step is that: in a construction site, (1) welding the outsourcing U-shaped steel on two opposite side walls of the lower section of the steel pipe column, (2) sleeving a connecting steel cylinder of the shearing mechanism into an inner cavity of the lower section of the steel pipe column and sleeving a shearing steel cylinder into an inner cavity of the upper section of the steel pipe column, welding the connecting plate and the outer wall of the lower section of the steel pipe column, and welding a negative bending moment reinforcing steel bar on a part, extending out of the connecting plate.
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