CN112211297A - Steel pipe concrete column top and sandwich concrete composite slab joint and construction method - Google Patents
Steel pipe concrete column top and sandwich concrete composite slab joint and construction method Download PDFInfo
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- CN112211297A CN112211297A CN202011255372.0A CN202011255372A CN112211297A CN 112211297 A CN112211297 A CN 112211297A CN 202011255372 A CN202011255372 A CN 202011255372A CN 112211297 A CN112211297 A CN 112211297A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 264
- 239000010959 steel Substances 0.000 title claims abstract description 264
- 239000004567 concrete Substances 0.000 title claims abstract description 245
- 239000002131 composite material Substances 0.000 title claims abstract description 91
- 238000010276 construction Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 25
- 238000013461 design Methods 0.000 claims description 24
- 238000009415 formwork Methods 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 230000002708 enhancing effect Effects 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 230000008901 benefit Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
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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
- E04B1/38—Connections for building structures in general
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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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4157—Longitudinally-externally threaded elements extending from the concrete or masonry, e.g. anchoring bolt with embedded head
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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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4171—Nailable or non-threaded screwable elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
Abstract
A steel tube concrete column top and sandwich concrete composite board node and construction method, the node includes steel tube concrete column, sandwich concrete composite board and connecting steel plate, also include supporting the angle steel, pre-buried bolt, prewelding screw and stud when adopting the steel plate and stud to cooperate the connection mode, also include flange and high-strength bolt when adopting the flange and high-strength bolt to cooperate the connection mode; the method comprises the following steps: when a steel plate and stud matched connection mode is adopted, a steel pipe concrete column, a sandwich concrete composite plate and supporting angle steel are manufactured, the steel pipe concrete column is installed in place, the supporting angle steel is installed, a pre-buried bolt and a nut of a pre-welded screw are screwed, the sandwich concrete composite plate is hoisted in place, and concrete is poured in a stud reserved hole; when the flange plate and the high-strength bolt are matched and connected, the steel pipe concrete column is installed in place, the sandwich concrete composite plate is hoisted in place, the high-strength bolt is installed, the nut is screwed, and concrete is poured in the reserved hole of the bolt.
Description
Technical Field
The invention belongs to the technical field of constructional engineering, and particularly relates to a steel tube concrete column top and sandwich concrete composite slab joint and a construction method.
Background
The column plate structure is a house structure of a bearing system consisting of columns and floor slabs, is a special case of a frame structure, and generally mainly comprises reinforced concrete materials. Because there is not the roof beam under the indoor floor of slab-column structure, the electromechanical pipeline of being convenient for arranges, can reduce the building floor height, has advantages such as the space is unobstructed succinct, plane arrangement is nimble. The column plate structure is suitable for halls of multi-storey factory buildings, warehouses and public buildings, and can also be used for office buildings, houses and the like.
At present, the construction process of the column plate structure is mainly based on-site wet operation, but cast-in-place construction not only causes the problems of serious environmental pollution, noise pollution and the like, but also mostly manually operates on a construction site, so that the labor efficiency is low and the construction period is long. With the development of economy, the demand of people on the quality of life and the quality of housing can not be met by a cast-in-place construction method, the resource consumption and the influence on the environment caused by the traditional construction mode are changed by the assembly type structure, and the cast-in-place construction method has outstanding advantages in the aspects of construction, quality and the like. The assembled structure is produced in a factory through standardized production, so that the field cast-in-place operation is greatly reduced, and the labor productivity is obviously improved. The assembly type building error reaches millimeter level, the components are produced in a factory, and the quality is greatly improved. The concrete columns and concrete slabs and steel columns and concrete slabs which are commonly used in building structures need to have the characteristics of good anti-seismic performance, good ductility, strong bearing capacity, quick construction and the like. Therefore, it is necessary to develop a reasonable column plate connection technology.
The steel tube concrete column is a column structure formed by pouring concrete into a steel tube, and has the advantages of good anti-seismic performance, light dead weight, good plasticity, fatigue resistance, impact resistance and the like compared with a common concrete column structure.
The sandwich concrete composite board is a novel composite board formed by connecting two steel plates and internal concrete thereof through a shear connector, and has the advantages of high bearing capacity, high rigidity, good ductility, fatigue resistance and the like.
Therefore, the plate column structure of the steel tube concrete column and sandwich concrete composite plate can fully utilize respective structural characteristics, and further improve the lateral force resistance rigidity and the seismic performance of the plate column structure. However, it is critical in which way concrete filled steel tube column tops are connected to the sandwich concrete composite panels.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the steel pipe concrete column top and sandwich concrete composite plate node and the construction method, which can take the construction efficiency and the economic benefit into consideration while ensuring the stable connection of the steel pipe concrete column top and the sandwich concrete composite plate, avoid the problems of heavy concrete floor slab, low strength and high steel structure cost, reduce the self weight of the structure, and improve the integrity, the stability and the earthquake resistance of the plate column structure.
In order to achieve the purpose, the invention adopts the following technical scheme: a steel pipe concrete column top and sandwich concrete composite slab node adopts a steel plate and stud matching connection mode, and comprises a steel pipe concrete column, a sandwich concrete composite slab, a supporting angle steel, a connecting steel plate, a pre-buried bolt, a pre-welded screw and a stud; the connecting steel plate is horizontally welded and fixedly arranged at the top of the concrete-filled steel tube column; the supporting angle steel is positioned between the connecting steel plate and the sandwich concrete composite plate, a vertical limb of the supporting angle steel is fixedly connected with the steel pipe concrete column through a pre-buried bolt, and a horizontal limb of the supporting angle steel is fixedly connected with the connecting steel plate through a pre-welded screw; the number of the studs is a plurality, the studs are uniformly distributed on the upper surface of the connecting steel plate, the studs are vertically arranged, and the bottom ends of the studs are fixedly connected with the upper surface of the connecting steel plate in a welding manner; a plurality of stud preformed holes are formed in the sandwich concrete composite board, the stud preformed holes are the same in number as the studs and correspond to the studs in positions one by one; and post-cast concrete is poured in the stud reserved hole.
The construction method of the steel pipe concrete column top and sandwich concrete composite slab joint comprises the following steps:
the method comprises the following steps: manufacturing a steel pipe concrete column, a sandwich concrete composite plate and supporting angle steel;
firstly, when a concrete-filled steel tube column is manufactured, a column body steel tube is selected according to design requirements, then a specified number of reserved bolt holes are processed at a set position at the top of the column body steel tube, then a pre-embedded bolt is installed in each reserved bolt hole, a screw of each pre-embedded bolt is exposed out of the column body steel tube, then concrete is poured into the column body steel tube until the concrete is cured and formed, and column body concrete is formed; then selecting a connecting steel plate according to design requirements, welding a specified number of pre-welding screws at set positions on the lower surface of the connecting steel plate, welding a specified number of studs at set positions on the upper surface of the connecting steel plate, and then welding and fixing the connecting steel plate welded with the pre-welding screws and the studs to the top of the column steel pipe;
secondly, when the sandwich concrete composite slab is manufactured, firstly two steel plates are selected according to design requirements, a specified number of stud reserved holes are processed at set positions on the two steel plates, then embedded parts used for enhancing the bonding effect between the embedded parts and concrete are welded on the inner surfaces of the two steel plates, then a formwork is completed, a stud reserved hole forming die is arranged in the formwork, and finally concrete is poured in the formwork until the concrete is cured and formed;
thirdly, when the support angle steel is manufactured, right angle steel is selected as the support angle steel according to the design size, and then reserved bolt holes with the specified number are processed at the set positions on the horizontal limb and the vertical limb of the support angle steel;
step two: mounting and positioning the manufactured concrete-filled steel tubular column to a specified position;
step three: the manufactured support angle steel is sent to a specified position at the top of the steel pipe concrete column, a prewelding screw on the lower surface of the connecting steel plate is ensured to accurately pass through a reserved bolt hole on a horizontal limb of the support angle steel, and meanwhile, a pre-embedded bolt on the steel pipe concrete column is ensured to accurately pass through a reserved bolt hole on a vertical limb of the support angle steel;
step four: installing and screwing a nut on the prewelding screw rod, and installing and screwing a nut on the embedded bolt at the same time until the support angle steel is fixed on the steel pipe concrete column;
step five: hoisting and lifting the manufactured sandwich concrete composite board to the position above the top of the steel pipe concrete column, aligning a stud reserved hole in the sandwich concrete composite board with a stud on the upper surface of the connecting steel plate, and then controlling the sandwich concrete composite board to descend until the sandwich concrete composite board is accurately placed on the upper surface of the connecting steel plate, and simultaneously enabling the stud to enter the stud reserved hole;
step six: and pouring concrete into the stud reserved holes until the concrete is cured and molded, and forming post-poured concrete, so that the assembly is finished.
A node of a steel pipe concrete column top and a sandwich concrete composite plate adopts a mode that a flange plate is matched and connected with a high-strength bolt, and comprises the steel pipe concrete column, the sandwich concrete composite plate, a connecting steel plate, the flange plate and the high-strength bolt; the connecting steel plate is horizontally welded and fixedly arranged at the top of the concrete-filled steel tube column; the flange plate is horizontally welded and fixedly arranged on the lower surface of the sandwich concrete composite plate; the sandwich concrete composite plate, the flange plate, the connecting steel plate and the steel pipe concrete column are sequentially distributed from top to bottom, bolt preformed holes are arranged among the sandwich concrete composite plate, the flange plate and the connecting steel plate, high-strength bolts penetrate through the bolt preformed holes, and the sandwich concrete composite plate, the flange plate and the connecting steel plate are fixedly connected together through the high-strength bolts; and post-cast concrete is poured in the bolt preformed hole.
The construction method of the steel pipe concrete column top and sandwich concrete composite slab joint comprises the following steps:
the method comprises the following steps: manufacturing a steel pipe concrete column and a sandwich concrete composite slab;
firstly, when a concrete-filled steel tube column is manufactured, a column body steel tube is selected according to design requirements, then concrete is poured into the column body steel tube until the concrete is solidified and formed, and column body concrete is formed; then selecting a connecting steel plate according to design requirements, processing a specified number of bolt preformed holes at a set position on the connecting steel plate, and then welding and fixing the connecting steel plate to the top of the column steel pipe;
secondly, when the sandwich concrete composite slab is manufactured, firstly two steel plates are selected according to design requirements, a specified number of bolt preformed holes are processed at set positions on the two steel plates, and then embedded parts used for enhancing the bonding effect with concrete are welded on the inner surfaces of the two steel plates; then, selecting a flange plate according to the design size, processing a specified number of bolt preformed holes at a set position on the flange plate, then stacking the flange plate on the lower surface of the bottom steel plate to ensure that the bolt preformed holes between the flange plate and the bottom steel plate are aligned, and then welding the flange plate on the bottom steel plate; then completing formwork support, arranging a bolt preformed hole forming die in the formwork, and finally pouring concrete in the formwork until the concrete is cured and formed;
step two: mounting and positioning the manufactured concrete-filled steel tubular column to a specified position;
step three: hoisting and lifting the manufactured sandwich concrete composite slab to the position above the top of the steel pipe concrete column, aligning bolt preformed holes in the sandwich concrete composite slab with bolt preformed holes in the connecting steel plate, and then controlling the sandwich concrete composite slab to descend until the sandwich concrete composite slab accurately falls on the upper surface of the connecting steel plate;
step four: high-strength bolts are arranged in the reserved holes of the bolts, and nuts are screwed down;
step five: and pouring concrete into the reserved holes of the bolts until the concrete is cured and molded, and forming post-poured concrete, so that the assembly is finished.
The invention has the beneficial effects that:
according to the steel pipe concrete column top and sandwich concrete composite plate node and the construction method, stable connection of the steel pipe concrete column top and the sandwich concrete composite plate is guaranteed, meanwhile, construction efficiency and economic benefits can be considered, the problems of heaviness, low strength and high steel structure cost of a concrete floor slab are solved, the self weight of the structure is reduced, and the integrity, stability and earthquake resistance of the plate column structure are improved.
Drawings
FIG. 1 is a schematic structural diagram of a node (adopting a steel plate and stud matched connection mode) of a steel tube concrete column top and sandwich concrete composite slab, which is disclosed by the invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a schematic structural diagram of a sandwich concrete composite slab (adopting a steel plate and stud matching connection mode) according to the present invention;
FIG. 5 is a cross-sectional view taken along line C-C of FIG. 4;
FIG. 6 is a schematic structural view of a node (adopting a flange and a high-strength bolt to be connected in a matching manner) of a steel pipe concrete column top and sandwich concrete composite slab according to the invention;
FIG. 7 is a cross-sectional view taken along line D-D of FIG. 6;
FIG. 8 is a cross-sectional view taken along line E-E of FIG. 6;
FIG. 9 is a sectional view taken along line F-F in FIG. 6 (the column body steel pipe is a square steel pipe);
FIG. 10 is a sectional view taken along line F-F in FIG. 6 (the column steel pipe is a circular steel pipe);
FIG. 11 is a schematic structural diagram of a sandwich concrete composite slab (adopting a flange plate and a high-strength bolt for matching connection);
FIG. 12 is a sectional view taken along line G-G of FIG. 12;
in the figure, 1-concrete filled steel tubular column, 2-stud, 3-shaft steel tube, 4-embedded bolt, 5-post-cast concrete, 6-sandwich concrete composite plate, 7-connecting steel plate, 8-supporting angle steel, 9-pre-welding screw, 10-stud preformed hole, 11-shaft concrete, 12-high-strength bolt, 13-flange plate and 14-bolt preformed hole.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1 to 5, a steel plate and stud matched connection mode is adopted for a steel pipe concrete column top and sandwich concrete composite plate node, and comprises a steel pipe concrete column 1, a sandwich concrete composite plate 6, support angle steel 8, a connecting steel plate 7, a pre-embedded bolt 4, a pre-welded screw 9 and a stud 2; the connecting steel plate 7 is horizontally welded and fixedly arranged at the top of the concrete-filled steel tubular column 1; the supporting angle steel 8 is positioned between the connecting steel plate 7 and the sandwich concrete composite plate 6, the vertical limb of the supporting angle steel 8 is fixedly connected with the concrete filled steel tubular column 1 through the embedded bolt 4, and the horizontal limb of the supporting angle steel 8 is fixedly connected with the connecting steel plate 7 through the prewelding screw rod 9; the number of the studs 2 is multiple, the studs 2 are uniformly distributed on the upper surface of the connecting steel plate 7, the studs 2 are vertically arranged, and the bottom ends of the studs 2 are fixedly connected with the upper surface of the connecting steel plate 7 in a welding manner; a plurality of stud preformed holes 10 are formed in the sandwich concrete composite board 6, the stud preformed holes 10 are the same in number with the studs 2, and the stud preformed holes 10 correspond to the studs 2 in position one by one; and post-cast concrete 5 is poured in the stud preformed hole 10.
The construction method of the steel pipe concrete column top and sandwich concrete composite slab joint comprises the following steps:
the method comprises the following steps: manufacturing a steel pipe concrete column 1, a sandwich concrete composite plate 6 and supporting angle steel 8;
firstly, when a concrete-filled steel tube column 1 is manufactured, a column body steel tube 3 is selected according to design requirements, then a specified number of reserved bolt holes are processed at a set position at the top of the column body steel tube 3, then a pre-embedded bolt 4 is installed in each reserved bolt hole, a screw of each pre-embedded bolt 4 is exposed out of the column body steel tube 3, then concrete is poured into the column body steel tube 3 until the concrete is cured and formed, and column body concrete 11 is formed; then selecting a connecting steel plate 7 according to design requirements, welding a specified number of pre-welding screws 9 at set positions on the lower surface of the connecting steel plate 7, welding a specified number of studs 2 at set positions on the upper surface of the connecting steel plate 7, and then welding and fixing the connecting steel plate 7 welded with the pre-welding screws 9 and the studs 2 to the top of the column steel pipe 3;
secondly, when the sandwich concrete composite slab 2 is manufactured, firstly two steel plates are selected according to design requirements, a specified number of stud preformed holes 10 are processed at set positions on the two steel plates, then embedded parts used for enhancing the bonding effect between the embedded parts and concrete are welded on the inner surfaces of the two steel plates, then a formwork is completed, a stud preformed hole 10 forming die is arranged in the formwork, and finally concrete is poured in the formwork until the concrete is cured and formed;
thirdly, when the supporting angle steel 8 is manufactured, right angle steel is selected as the supporting angle steel 8 according to the design size, and then the reserved bolt holes with the specified number are processed at the set positions on the horizontal limb and the vertical limb of the supporting angle steel 8;
step two: mounting and positioning the manufactured concrete-filled steel tubular column 1 to a specified position;
step three: the manufactured support angle steel 8 is sent to a specified position at the top of the steel tube concrete column 1, a prewelding screw 9 on the lower surface of a connecting steel plate 7 is ensured to accurately penetrate through a reserved bolt hole on a horizontal limb of the support angle steel 8, and meanwhile, a pre-embedded bolt 4 on the steel tube concrete column 1 is ensured to accurately penetrate through a reserved bolt hole on a vertical limb of the support angle steel 8;
step four: installing and screwing a nut on the prewelding screw rod 9, and installing and screwing a nut on the embedded bolt 4 at the same time until the support angle steel 8 is fixed on the steel pipe concrete column 1;
step five: hoisting and lifting the manufactured sandwich concrete composite board 2 to the top of the steel pipe concrete column 1, aligning the stud preformed hole 10 on the sandwich concrete composite board 2 with the stud 2 on the upper surface of the connecting steel plate 7, and then controlling the sandwich concrete composite board 2 to descend until the sandwich concrete composite board 2 is accurately placed on the upper surface of the connecting steel plate 7, and simultaneously enabling the stud 2 to enter the stud preformed hole 10;
step six: and pouring concrete into the stud preformed hole 10 until the concrete is cured and formed to form post-poured concrete 5, and finishing assembly.
As shown in fig. 6 to 12, a node of a steel pipe concrete column top and a sandwich concrete composite slab adopts a mode of matching and connecting a flange plate and a high-strength bolt, and comprises a steel pipe concrete column 1, a sandwich concrete composite slab 6, a connecting steel plate 7, a flange plate 13 and a high-strength bolt 12; the connecting steel plate 7 is horizontally welded and fixedly arranged at the top of the concrete-filled steel tubular column 1; the flange 13 is horizontally welded and fixedly arranged on the lower surface of the sandwich concrete composite plate 6; the sandwich concrete composite plate 6, the flange plate 13, the connecting steel plate 7 and the steel pipe concrete column 1 are sequentially distributed from top to bottom, bolt preformed holes 14 are arranged among the sandwich concrete composite plate 6, the flange plate 13 and the connecting steel plate 7, high-strength bolts 12 penetrate through the bolt preformed holes 14, and the sandwich concrete composite plate 6, the flange plate 13 and the connecting steel plate 7 are fixedly connected together through the high-strength bolts 12; and post-cast concrete 5 is poured in the bolt preformed hole 14.
The construction method of the steel pipe concrete column top and sandwich concrete composite slab joint comprises the following steps:
the method comprises the following steps: manufacturing a steel pipe concrete column 1 and a sandwich concrete composite plate 6;
firstly, when a concrete-filled steel tube column 1 is manufactured, a column body steel tube 3 is selected according to design requirements, then concrete is poured into the column body steel tube 3 until the concrete is solidified and formed, and column body concrete 11 is formed; then selecting a connecting steel plate 7 according to design requirements, processing a specified number of bolt preformed holes 14 at a set position on the connecting steel plate 7, and then welding and fixing the connecting steel plate 7 to the top of the column steel pipe 3;
secondly, when the sandwich concrete composite slab 2 is manufactured, two steel plates are selected according to design requirements, a specified number of bolt preformed holes 14 are processed at set positions on the two steel plates, and then embedded parts for enhancing the bonding effect with concrete are welded on the inner surfaces of the two steel plates; then, selecting a flange plate 13 according to the design size, processing a specified number of bolt preformed holes 14 at a set position on the flange plate 13, then stacking the flange plate 13 on the lower surface of the bottom steel plate to ensure that the bolt preformed holes 14 between the flange plate 13 and the bottom steel plate are aligned, and then welding the flange plate 13 on the bottom steel plate; then completing formwork supporting, arranging a bolt preformed hole 14 forming die in the formwork, and finally pouring concrete in the formwork until the concrete is cured and formed;
step two: mounting and positioning the manufactured concrete-filled steel tubular column 1 to a specified position;
step three: hoisting and lifting the manufactured sandwich concrete composite slab 2 to the top of the steel pipe concrete column 1, aligning bolt preformed holes 14 on the sandwich concrete composite slab 2 with bolt preformed holes 14 on the connecting steel plate 7, and then controlling the sandwich concrete composite slab 2 to descend until the sandwich concrete composite slab 2 accurately falls on the upper surface of the connecting steel plate 7;
step four: a high-strength bolt 12 is arranged in each bolt preformed hole 14, and a nut is screwed;
step five: and pouring concrete into the bolt preformed hole 14 until the concrete is cured and formed to form post-poured concrete 5, and finishing assembly.
The embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications without departing from the scope of the present invention are intended to be included in the scope of the present invention.
Claims (4)
1. The utility model provides a steel core concrete column top and sandwich concrete compoboard node which characterized in that: the steel plate and the stud are connected in a matching mode, and the steel plate and the stud comprise a steel pipe concrete column, a sandwich concrete composite plate, a supporting angle steel, a connecting steel plate, a pre-buried bolt, a pre-welded screw and a stud; the connecting steel plate is horizontally welded and fixedly arranged at the top of the concrete-filled steel tube column; the supporting angle steel is positioned between the connecting steel plate and the sandwich concrete composite plate, a vertical limb of the supporting angle steel is fixedly connected with the steel pipe concrete column through a pre-buried bolt, and a horizontal limb of the supporting angle steel is fixedly connected with the connecting steel plate through a pre-welded screw; the number of the studs is a plurality, the studs are uniformly distributed on the upper surface of the connecting steel plate, the studs are vertically arranged, and the bottom ends of the studs are fixedly connected with the upper surface of the connecting steel plate in a welding manner; a plurality of stud preformed holes are formed in the sandwich concrete composite board, the stud preformed holes are the same in number as the studs and correspond to the studs in positions one by one; and post-cast concrete is poured in the stud reserved hole.
2. The construction method of the steel pipe concrete column top and sandwich concrete composite slab joint of claim 1, characterized by comprising the steps of:
the method comprises the following steps: manufacturing a steel pipe concrete column, a sandwich concrete composite plate and supporting angle steel;
firstly, when a concrete-filled steel tube column is manufactured, a column body steel tube is selected according to design requirements, then a specified number of reserved bolt holes are processed at a set position at the top of the column body steel tube, then a pre-embedded bolt is installed in each reserved bolt hole, a screw of each pre-embedded bolt is exposed out of the column body steel tube, then concrete is poured into the column body steel tube until the concrete is cured and formed, and column body concrete is formed; then selecting a connecting steel plate according to design requirements, welding a specified number of pre-welding screws at set positions on the lower surface of the connecting steel plate, welding a specified number of studs at set positions on the upper surface of the connecting steel plate, and then welding and fixing the connecting steel plate welded with the pre-welding screws and the studs to the top of the column steel pipe;
secondly, when the sandwich concrete composite slab is manufactured, firstly two steel plates are selected according to design requirements, a specified number of stud reserved holes are processed at set positions on the two steel plates, then embedded parts used for enhancing the bonding effect between the embedded parts and concrete are welded on the inner surfaces of the two steel plates, then a formwork is completed, a stud reserved hole forming die is arranged in the formwork, and finally concrete is poured in the formwork until the concrete is cured and formed;
thirdly, when the support angle steel is manufactured, right angle steel is selected as the support angle steel according to the design size, and then reserved bolt holes with the specified number are processed at the set positions on the horizontal limb and the vertical limb of the support angle steel;
step two: mounting and positioning the manufactured concrete-filled steel tubular column to a specified position;
step three: the manufactured support angle steel is sent to a specified position at the top of the steel pipe concrete column, a prewelding screw on the lower surface of the connecting steel plate is ensured to accurately pass through a reserved bolt hole on a horizontal limb of the support angle steel, and meanwhile, a pre-embedded bolt on the steel pipe concrete column is ensured to accurately pass through a reserved bolt hole on a vertical limb of the support angle steel;
step four: installing and screwing a nut on the prewelding screw rod, and installing and screwing a nut on the embedded bolt at the same time until the support angle steel is fixed on the steel pipe concrete column;
step five: hoisting and lifting the manufactured sandwich concrete composite board to the position above the top of the steel pipe concrete column, aligning a stud reserved hole in the sandwich concrete composite board with a stud on the upper surface of the connecting steel plate, and then controlling the sandwich concrete composite board to descend until the sandwich concrete composite board is accurately placed on the upper surface of the connecting steel plate, and simultaneously enabling the stud to enter the stud reserved hole;
step six: and pouring concrete into the stud reserved holes until the concrete is cured and molded, and forming post-poured concrete, so that the assembly is finished.
3. The utility model provides a steel core concrete column top and sandwich concrete compoboard node which characterized in that: the flange plate and the high-strength bolt are connected in a matched mode and comprise a steel pipe concrete column, a sandwich concrete composite plate, a connecting steel plate, a flange plate and a high-strength bolt; the connecting steel plate is horizontally welded and fixedly arranged at the top of the concrete-filled steel tube column; the flange plate is horizontally welded and fixedly arranged on the lower surface of the sandwich concrete composite plate; the sandwich concrete composite plate, the flange plate, the connecting steel plate and the steel pipe concrete column are sequentially distributed from top to bottom, bolt preformed holes are arranged among the sandwich concrete composite plate, the flange plate and the connecting steel plate, high-strength bolts penetrate through the bolt preformed holes, and the sandwich concrete composite plate, the flange plate and the connecting steel plate are fixedly connected together through the high-strength bolts; and post-cast concrete is poured in the bolt preformed hole.
4. The construction method of the steel pipe concrete column top and sandwich concrete composite slab joint of claim 3, characterized by comprising the steps of:
the method comprises the following steps: manufacturing a steel pipe concrete column and a sandwich concrete composite slab;
firstly, when a concrete-filled steel tube column is manufactured, a column body steel tube is selected according to design requirements, then concrete is poured into the column body steel tube until the concrete is solidified and formed, and column body concrete is formed; then selecting a connecting steel plate according to design requirements, processing a specified number of bolt preformed holes at a set position on the connecting steel plate, and then welding and fixing the connecting steel plate to the top of the column steel pipe;
secondly, when the sandwich concrete composite slab is manufactured, firstly two steel plates are selected according to design requirements, a specified number of bolt preformed holes are processed at set positions on the two steel plates, and then embedded parts used for enhancing the bonding effect with concrete are welded on the inner surfaces of the two steel plates; then, selecting a flange plate according to the design size, processing a specified number of bolt preformed holes at a set position on the flange plate, then stacking the flange plate on the lower surface of the bottom steel plate to ensure that the bolt preformed holes between the flange plate and the bottom steel plate are aligned, and then welding the flange plate on the bottom steel plate; then completing formwork support, arranging a bolt preformed hole forming die in the formwork, and finally pouring concrete in the formwork until the concrete is cured and formed;
step two: mounting and positioning the manufactured concrete-filled steel tubular column to a specified position;
step three: hoisting and lifting the manufactured sandwich concrete composite slab to the position above the top of the steel pipe concrete column, aligning bolt preformed holes in the sandwich concrete composite slab with bolt preformed holes in the connecting steel plate, and then controlling the sandwich concrete composite slab to descend until the sandwich concrete composite slab accurately falls on the upper surface of the connecting steel plate;
step four: high-strength bolts are arranged in the reserved holes of the bolts, and nuts are screwed down;
step five: and pouring concrete into the reserved holes of the bolts until the concrete is cured and molded, and forming post-poured concrete, so that the assembly is finished.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011255372.0A CN112211297A (en) | 2020-11-11 | 2020-11-11 | Steel pipe concrete column top and sandwich concrete composite slab joint and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011255372.0A CN112211297A (en) | 2020-11-11 | 2020-11-11 | Steel pipe concrete column top and sandwich concrete composite slab joint and construction method |
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