CN112267569A - Connecting joint of steel column top and profiled steel plate concrete composite slab and construction method - Google Patents
Connecting joint of steel column top and profiled steel plate concrete composite slab and construction method Download PDFInfo
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- CN112267569A CN112267569A CN202011253121.9A CN202011253121A CN112267569A CN 112267569 A CN112267569 A CN 112267569A CN 202011253121 A CN202011253121 A CN 202011253121A CN 112267569 A CN112267569 A CN 112267569A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 334
- 239000010959 steel Substances 0.000 title claims abstract description 334
- 239000004567 concrete Substances 0.000 title claims abstract description 141
- 239000002131 composite material Substances 0.000 title claims abstract description 99
- 238000010276 construction Methods 0.000 title abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 claims description 21
- 238000013461 design Methods 0.000 claims description 12
- 239000011178 precast concrete Substances 0.000 claims description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 230000002457 bidirectional effect Effects 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
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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
- E04B1/4114—Elements with sockets
-
- 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
- E04B1/4114—Elements with sockets
- E04B1/4121—Elements with sockets with internal threads or non-adjustable captive nuts
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
A joint for connecting the top of a steel column with a profiled steel plate concrete composite board and a construction method are disclosed, wherein the joint comprises the steel column, the profiled steel plate concrete composite board, supporting angle steel, a connecting steel plate, a high-strength bolt, a pre-welded screw and a stud; the connecting steel plate is welded at the top of the steel column; the profiled steel plate concrete composite board is fixedly arranged at the top of the connecting steel plate, and the support angle steel is connected between the connecting steel plate and the steel column; the profiled steel plate concrete composite slab is divided into a semi-prefabricated structure and a full-prefabricated structure. The method comprises the following steps: manufacturing a steel column, a profiled steel plate concrete composite board and supporting angle steel; mounting the steel column to a specified position; conveying the support angle steel to a specified position and aligning with the reserved bolt hole, fixedly connecting a horizontal limb of the support angle steel with a connecting steel plate through a prewelding screw rod, and fixedly connecting a vertical limb of the support angle steel with a steel column through a high-strength bolt; and hoisting the profiled steel sheet concrete composite board to the upper part of the connecting steel plate at the top of the steel column, aligning the stud and the stud preformed hole, and dropping the profiled steel sheet concrete composite board to finish the pouring of the post-cast concrete.
Description
Technical Field
The invention belongs to the technical field of constructional engineering, and particularly relates to a connecting node of the top of a steel column and a profiled steel plate concrete composite slab and a construction method.
Background
The stress characteristic of the plate column structure under the action of horizontal load is similar to that of a frame structure, and a column upper plate replaces a frame beam, so that the plate column structure belongs to a special condition of the frame structure. At present, the prefabricated concrete structure system is in an important development stage in China, and is widely applied to a plate column structure. Compared with the traditional cast-in-place construction mode, the assembly type building greatly reduces the energy resource consumption in the engineering construction process, reduces the environmental pollution and the project site temporary land caused by the traditional construction, improves the working environment of workers and effectively improves the labor production efficiency.
The profiled steel plate concrete composite board can fully utilize two materials, namely steel and concrete, has the advantages of high rigidity, high bearing capacity, convenience in construction operation and the like, and is widely applied to high-rise buildings, large-span structures and large bridge structures. In the profiled steel sheet concrete composite slab, the profiled steel sheet functions as a tensile main reinforcement for resisting the positive bending moment of the slab face.
The steel column is used as a bearing structure, so that the dead weight is light, the vertical load and the earthquake action transmitted to a foundation by the structure can be obviously reduced, the ductility is good, the adaptability to dynamic load is strong, and the structure has the deformation capability of resisting strong earthquake.
Therefore, the plate-column structure of the steel column and profiled steel plate concrete composite plate can fully utilize respective structural characteristics, and further improve the lateral force resistance and the seismic performance of the plate-column structure. However, it is critical to connect the tops of the steel columns to the profiled steel sheet concrete composite panel in which manner.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a connection node of a steel column top and a profiled steel plate concrete composite board and a construction method, which can take the construction efficiency and the economic benefit into consideration while ensuring the stable connection of the steel column top and the profiled steel plate concrete composite board, 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 connecting node for the top of a steel column and a profiled steel plate concrete composite board comprises the steel column, the profiled steel plate concrete composite board, supporting angle steel, a connecting steel plate, a high-strength bolt, a prewelding screw and a stud; the connecting steel plate is horizontally welded and fixedly arranged at the top of the steel column; the supporting angle steel is positioned between the connecting steel plate and the profiled steel plate concrete composite plate, the vertical limb of the supporting angle steel is fixedly connected with the steel column through a high-strength bolt, and the horizontal limb of the supporting angle steel is fixedly connected with the connecting steel plate through a prewelding screw rod; 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; the profiled steel plate concrete composite board is provided with a plurality of stud preformed holes, and the stud preformed holes are the same in number and correspond to the studs in position one to one.
The top of the steel column is fixedly welded with a stiffening steel plate, a supporting angle steel is also arranged between the stiffening steel plate and the connecting steel plate, the horizontal limb of the supporting angle steel is fixedly connected with the connecting steel plate through a prewelding screw, and the vertical limb of the supporting angle steel is fixedly connected with the stiffening steel plate.
The profiled steel plate concrete composite board is divided into a semi-prefabricated structure and a full-prefabricated structure; when the profiled steel sheet concrete composite board adopts a semi-prefabricated structure, the thickness of the precast concrete of the profiled steel sheet concrete composite board is half of the thickness of the whole board, the other half of the concrete of the profiled steel sheet concrete composite board is post-cast concrete, and the post-cast concrete is also filled in the stud reserved holes; when the profiled steel sheet concrete composite board adopts a full-prefabricated structure, the thickness of the precast concrete of the profiled steel sheet concrete composite board is the full-board thickness, and only the stud reserved holes are filled with post-cast concrete.
The construction method of the connecting joint of the top of the steel column and the profiled steel plate concrete composite slab comprises the following steps:
the method comprises the following steps: manufacturing a steel column, a profiled steel plate concrete composite board and supporting angle steel;
firstly, when manufacturing a steel column, firstly, selecting section steel as the steel column according to design requirements, then welding stiffening steel plates between flanges on two sides of the top of a web plate of the section steel to ensure that the stiffening steel plates are parallel to the web plate of the section steel, and then processing a specified number of reserved bolt holes at set positions on the stiffening steel plates and the flange of the section steel; firstly, 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 section steel;
secondly, when manufacturing the profiled steel plate concrete composite slab, firstly selecting profiled steel plates according to design requirements, processing a specified number of stud preformed holes at set positions on the profiled steel plates, then supporting a template above the profiled steel plates, paving a bidirectional reinforcing mesh and a stud preformed hole forming die in the template, and finally pouring concrete in the template until the concrete is cured and formed; if the profiled steel sheet concrete composite board adopts a semi-prefabricated structure, the thickness of the solidified precast concrete is half of the thickness of the whole profiled steel sheet concrete composite board; if the profiled steel sheet concrete composite board adopts a full prefabricated structure, the thickness of the cured precast concrete is the thickness of the whole profiled steel sheet concrete composite board;
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 steel column to a specified position;
step three: the manufactured support angle steel is sent to a designated position at the top of the steel column, a prewelding screw rod 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 vertical limb of the support angle steel is ensured to be aligned with reserved bolt holes on the steel column and a stiffening steel plate;
step four: installing and screwing nuts on the prewelding screw rods, penetrating high-strength bolts into reserved bolt holes on the vertical limbs of the support angle steel, the steel column and the stiffening steel plate, and screwing the nuts until the support angle steel is fixed on the steel column;
step five: hoisting and lifting the manufactured profiled steel sheet concrete composite board to the top of the steel column, aligning the stud reserved holes in the profiled steel sheet concrete composite board with studs on the upper surface of the connecting steel plate, then controlling the profiled steel sheet concrete composite board to descend until the profiled steel sheet concrete composite board accurately falls on the upper surface of the connecting steel plate, and simultaneously enabling the studs to enter the stud reserved holes;
step six: if the profiled steel sheet concrete composite board adopts a semi-prefabricated structure, a bidirectional reinforcing mesh needs to be laid above the semi-prefabricated profiled steel sheet concrete composite board, and finally concrete is poured in the template until the concrete is cured and formed, and post-cast concrete is formed, so that the profiled steel sheet concrete composite board reaches the full thickness, and the assembly is finished; if the profiled steel sheet concrete compoboard adopts the full precast structure, only need to pour concrete in the stud preformed hole, until the concrete solidification shaping, then the assembly is accomplished.
The invention has the beneficial effects that:
according to the connecting node of the top of the steel column and the profiled steel plate concrete composite board and the construction method, stable connection of the top of the steel column and the profiled steel plate concrete composite board 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 slab-column structure are improved.
Drawings
FIG. 1 is a schematic structural view of a connection node between the top of a steel column and a profiled steel sheet concrete composite panel (when the profiled steel sheet concrete composite panel adopts a semi-prefabricated structure) according to the present 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 cross-sectional view taken along line C-C of FIG. 1;
FIG. 5 is a cross-sectional view taken along line D-D of FIG. 1;
FIG. 6 is a schematic structural view of a joint between the top of a steel column and a profiled steel sheet concrete composite panel (when the profiled steel sheet concrete composite panel adopts a fully prefabricated structure) according to the present invention;
FIG. 7 is a cross-sectional view taken along line E-E of FIG. 6;
FIG. 8 is a schematic structural view of a profiled steel sheet concrete composite panel (semi-prefabricated structure) according to the present invention;
FIG. 9 is a sectional view taken along line F-F in FIG. 8;
FIG. 10 is a schematic structural view of a profiled steel sheet concrete composite panel (fully precast structure) according to the present invention;
FIG. 11 is a sectional view taken along line G-G of FIG. 10;
in the figure, 1-steel column, 2-stud, 3-two-way reinforcing mesh, 4-high-strength bolt, 5-post-cast concrete, 6-profiled steel plate concrete composite board, 7-connecting steel plate, 8-supporting angle steel, 9-prewelding screw, 10-stud preformed hole and 11-stiffening steel plate.
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 11, a connection node between the top of a steel column and a profiled steel sheet concrete composite panel comprises a steel column 1, a profiled steel sheet concrete composite panel 6, a support angle steel 8, a connecting steel plate 7, a high-strength bolt 4, a prewelding screw 9 and a stud 2; the connecting steel plate 7 is horizontally welded and fixedly arranged at the top of the steel column 1; the supporting angle steel 8 is positioned between the connecting steel plate 7 and the profiled steel plate concrete composite slab 6, the vertical limb of the supporting angle steel 8 is fixedly connected with the steel column 1 through the high-strength 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 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 profiled steel plate concrete composite board 6, and the stud preformed holes 10 are the same in number and correspond to the studs 2 in position one to one.
A stiffening steel plate 11 is fixedly welded to the top of the steel column 1, a supporting angle steel 8 is also arranged between the stiffening steel plate 11 and the connecting steel plate 7, a horizontal limb of the supporting angle steel 8 is fixedly connected with the connecting steel plate 7 through a prewelding screw 9, and a vertical limb of the supporting angle steel 8 is fixedly connected with the stiffening steel plate 11.
The profiled steel plate concrete composite board is divided into a semi-prefabricated structure and a full-prefabricated structure; when the profiled steel sheet concrete composite board adopts a semi-prefabricated structure, the thickness of the precast concrete of the profiled steel sheet concrete composite board is half of the thickness of the whole board, the other half of the concrete of the profiled steel sheet concrete composite board is post-cast concrete 5, and the post-cast concrete 5 is also filled in the stud reserved hole 10; when the profiled steel sheet concrete composite board adopts a full-prefabricated structure, the thickness of the precast concrete of the profiled steel sheet concrete composite board is the full-board thickness, and only the stud preformed holes 10 are filled with the post-cast concrete 5.
The construction method of the connecting joint of the top of the steel column and the profiled steel plate concrete composite slab comprises the following steps:
the method comprises the following steps: manufacturing a steel column 1, a profiled steel plate concrete composite board 6 and supporting angle steel 8;
firstly, when manufacturing a steel column, firstly, selecting section steel as the steel column according to design requirements, then welding stiffening steel plates 11 between flanges on two sides of the top of a web plate of the section steel to ensure that the stiffening steel plates 11 are parallel to the web plate of the section steel, and then processing a specified number of reserved bolt holes at set positions on the stiffening steel plates 11 and the flanges of the section steel; firstly, selecting a connecting steel plate 7 according to design requirements, welding a specified number of pre-welding screw rods 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 screw rods 9 and the studs 2 to the top of the section steel;
secondly, when manufacturing the profiled steel plate concrete composite slab, firstly selecting profiled steel plates according to design requirements, processing a specified number of stud preformed holes 10 at set positions on the profiled steel plates, then supporting a template above the profiled steel plates, paving a bidirectional reinforcing mesh 3 and a stud preformed hole 10 forming mold in the template, and finally pouring concrete in the template until the concrete is cured and formed; if the profiled steel sheet concrete composite board adopts a semi-prefabricated structure, the thickness of the solidified precast concrete is half of the thickness of the whole profiled steel sheet concrete composite board; if the profiled steel sheet concrete composite board adopts a full prefabricated structure, the thickness of the cured precast concrete is the thickness of the whole profiled steel sheet concrete composite board;
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 steel column 1 to a specified position;
step three: the manufactured support angle steel 8 is sent to a designated position at the top of the steel column 1, a prewelding screw 9 on the lower surface of the 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 vertical limb of the support angle steel 8 is ensured to be aligned with the reserved bolt holes on the steel column 1 and a stiffening steel plate 11;
step four: installing and screwing nuts on the prewelding screw rods 9, simultaneously penetrating high-strength bolts 4 into reserved bolt holes on the vertical limbs of the support angle steel 8, the steel column 1 and the stiffening steel plate 11, and screwing the nuts until the support angle steel 8 is fixed on the steel column 1;
step five: hoisting and lifting the manufactured profiled steel plate concrete composite board 6 above the top of the steel column 1, aligning the stud preformed hole 10 on the profiled steel plate concrete composite board 6 with the stud 2 on the upper surface of the connecting steel plate 7, and then controlling the profiled steel plate concrete composite board 6 to descend until the profiled steel plate concrete composite board 6 accurately falls 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: if the profiled steel sheet concrete composite board 6 adopts a semi-prefabricated structure, the bidirectional reinforcing mesh 3 needs to be laid above the semi-prefabricated profiled steel sheet concrete composite board 6, and finally concrete is poured in the template until the concrete is cured and formed, and post-cast concrete 5 is formed, so that the profiled steel sheet concrete composite board 6 reaches the full thickness, and the assembly is finished; if the profiled steel sheet concrete composite board 6 adopts the full prefabricated construction, only need pour concrete in the stud preformed hole 10, until the concrete solidification shaping, then the assembly is accomplished.
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 column top and profiled steel sheet concrete compoboard connected node which characterized in that: the steel column is characterized by comprising a steel column, a profiled steel plate concrete composite board, supporting angle steel, a connecting steel plate, a high-strength bolt, a prewelding screw and a stud; the connecting steel plate is horizontally welded and fixedly arranged at the top of the steel column; the supporting angle steel is positioned between the connecting steel plate and the profiled steel plate concrete composite plate, the vertical limb of the supporting angle steel is fixedly connected with the steel column through a high-strength bolt, and the horizontal limb of the supporting angle steel is fixedly connected with the connecting steel plate through a prewelding screw rod; 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; the profiled steel plate concrete composite board is provided with a plurality of stud preformed holes, and the stud preformed holes are the same in number and correspond to the studs in position one to one.
2. The joint of claim 1, wherein the top of the steel column is connected with the profiled steel sheet concrete composite slab, and the joint comprises: the top of the steel column is fixedly welded with a stiffening steel plate, a supporting angle steel is also arranged between the stiffening steel plate and the connecting steel plate, the horizontal limb of the supporting angle steel is fixedly connected with the connecting steel plate through a prewelding screw, and the vertical limb of the supporting angle steel is fixedly connected with the stiffening steel plate.
3. The joint of claim 1, wherein the top of the steel column is connected with the profiled steel sheet concrete composite slab, and the joint comprises: the profiled steel plate concrete composite board is divided into a semi-prefabricated structure and a full-prefabricated structure; when the profiled steel sheet concrete composite board adopts a semi-prefabricated structure, the thickness of the precast concrete of the profiled steel sheet concrete composite board is half of the thickness of the whole board, the other half of the concrete of the profiled steel sheet concrete composite board is post-cast concrete, and the post-cast concrete is also filled in the stud reserved holes; when the profiled steel sheet concrete composite board adopts a full-prefabricated structure, the thickness of the precast concrete of the profiled steel sheet concrete composite board is the full-board thickness, and only the stud reserved holes are filled with post-cast concrete.
4. The method for constructing a joint between the top of a steel column and a profiled steel sheet concrete composite slab as claimed in claim 1, comprising the steps of:
the method comprises the following steps: manufacturing a steel column, a profiled steel plate concrete composite board and supporting angle steel;
firstly, when manufacturing a steel column, firstly, selecting section steel as the steel column according to design requirements, then welding stiffening steel plates between flanges on two sides of the top of a web plate of the section steel to ensure that the stiffening steel plates are parallel to the web plate of the section steel, and then processing a specified number of reserved bolt holes at set positions on the stiffening steel plates and the flange of the section steel; firstly, 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 section steel;
secondly, when manufacturing the profiled steel plate concrete composite slab, firstly selecting profiled steel plates according to design requirements, processing a specified number of stud preformed holes at set positions on the profiled steel plates, then supporting a template above the profiled steel plates, paving a bidirectional reinforcing mesh and a stud preformed hole forming die in the template, and finally pouring concrete in the template until the concrete is cured and formed; if the profiled steel sheet concrete composite board adopts a semi-prefabricated structure, the thickness of the solidified precast concrete is half of the thickness of the whole profiled steel sheet concrete composite board; if the profiled steel sheet concrete composite board adopts a full prefabricated structure, the thickness of the cured precast concrete is the thickness of the whole profiled steel sheet concrete composite board;
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 steel column to a specified position;
step three: the manufactured support angle steel is sent to a designated position at the top of the steel column, a prewelding screw rod 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 vertical limb of the support angle steel is ensured to be aligned with reserved bolt holes on the steel column and a stiffening steel plate;
step four: installing and screwing nuts on the prewelding screw rods, penetrating high-strength bolts into reserved bolt holes on the vertical limbs of the support angle steel, the steel column and the stiffening steel plate, and screwing the nuts until the support angle steel is fixed on the steel column;
step five: hoisting and lifting the manufactured profiled steel sheet concrete composite board to the top of the steel column, aligning the stud reserved holes in the profiled steel sheet concrete composite board with studs on the upper surface of the connecting steel plate, then controlling the profiled steel sheet concrete composite board to descend until the profiled steel sheet concrete composite board accurately falls on the upper surface of the connecting steel plate, and simultaneously enabling the studs to enter the stud reserved holes;
step six: if the profiled steel sheet concrete composite board adopts a semi-prefabricated structure, a bidirectional reinforcing mesh needs to be laid above the semi-prefabricated profiled steel sheet concrete composite board, and finally concrete is poured in the template until the concrete is cured and formed, and post-cast concrete is formed, so that the profiled steel sheet concrete composite board reaches the full thickness, and the assembly is finished; if the profiled steel sheet concrete compoboard adopts the full precast structure, only need to pour concrete in the stud preformed hole, until the concrete solidification shaping, then the assembly is accomplished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011253121.9A CN112267569A (en) | 2020-11-11 | 2020-11-11 | Connecting joint of steel column top and profiled steel plate concrete composite slab and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011253121.9A CN112267569A (en) | 2020-11-11 | 2020-11-11 | Connecting joint of steel column top and profiled steel plate concrete composite slab and construction method |
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| CN112267569A true CN112267569A (en) | 2021-01-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356010A (en) * | 2021-05-15 | 2021-09-07 | 中建路桥集团有限公司 | Steel-concrete combined beam bridge capable of being installed quickly |
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2020
- 2020-11-11 CN CN202011253121.9A patent/CN112267569A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356010A (en) * | 2021-05-15 | 2021-09-07 | 中建路桥集团有限公司 | Steel-concrete combined beam bridge capable of being installed quickly |
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