CN114215193A - Connection structure of assembled steel-concrete composite board and shaped steel concrete beam - Google Patents
Connection structure of assembled steel-concrete composite board and shaped steel concrete beam Download PDFInfo
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- CN114215193A CN114215193A CN202111486256.4A CN202111486256A CN114215193A CN 114215193 A CN114215193 A CN 114215193A CN 202111486256 A CN202111486256 A CN 202111486256A CN 114215193 A CN114215193 A CN 114215193A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 217
- 239000010959 steel Substances 0.000 title claims abstract description 217
- 239000004567 concrete Substances 0.000 title claims abstract description 129
- 239000002131 composite material Substances 0.000 title claims abstract description 67
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 67
- 230000002787 reinforcement Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims abstract description 7
- 238000009415 formwork Methods 0.000 claims description 6
- 230000002441 reversible effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 18
- 238000009434 installation Methods 0.000 abstract description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction 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
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/28—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups combinations of materials fully covered by groups E04C2/04 and E04C2/08
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
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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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention discloses a connecting structure of an assembled steel-concrete composite plate and a steel reinforced concrete beam, wherein the assembled prefabricated steel reinforced concrete beam welded with a thread shear-resistant fastener comprises a steel reinforcement cage consisting of profile steel, square spiral stirrups and longitudinal steel bars and the thread shear-resistant fastener, a plurality of thread shear-resistant fasteners are welded and fixed on the upper flange of the profile steel at intervals, then a template is erected, the profile steel and the steel reinforcement cage are placed, concrete is poured, and the assembled prefabricated steel reinforced concrete beam welded with the thread shear-resistant fasteners is manufactured. The assembled steel-concrete composite slab with the reserved opening of the end profiled steel sheet is fixed on the assembled prefabricated steel reinforced concrete beam through the threaded shear fasteners and then poured through concrete to form a connecting structure of the assembled steel-concrete composite slab and the steel reinforced concrete beam. The installation method has the advantages that the construction is simple and convenient through the prefabricated parts, the construction efficiency can be improved, welding equipment is not needed on site, and the requirements on construction equipment are reduced. The invention relates to the technical field of constructional engineering.
Description
Technical Field
The invention relates to a connecting structure of an assembled steel-concrete composite plate and a steel reinforced concrete beam in the technical field of constructional engineering.
Background
Compared with the traditional reinforced concrete structure, the steel-concrete combined structural form has the advantages of unlimited steel content, high bearing capacity, high rigidity, strong deformability, obviously improved ductility and energy consumption capacity, good earthquake resistance, capability of reducing the section of a beam column and increasing the use space. Compared with a steel structure, the steel structure has better durability, fire resistance and the like, saves steel, has high structural rigidity, and is easier to meet the horizontal displacement under the action of wind load and earthquake. In addition, the stability of the section steel is improved, and the instability of the rod piece is prevented. Before concrete is poured, the formwork can be hung to bear the first-stage loads such as self weight, post-poured concrete, construction load and the like. After the post-cast concrete reaches the design strength, the post-cast concrete is integrated with the section steel and the reinforcing steel bars to bear the use load together. The adoption of the steel reinforced concrete structure can obviously accelerate the construction speed, the upper-layer construction can be continued without waiting for the concrete of the lower-layer structure to reach the preset strength, the temporary support is not needed, and the parallel line production of civil engineering and equipment installation procedures can be realized. Therefore, the steel reinforced concrete is a structural form with excellent stress and earthquake resistance.
Although the steel reinforced concrete has more advantages, when the traditional cast-in-place steel reinforced concrete structure is constructed, the steel structure processing technology and node connection are adopted, and the procedures of reinforced bar binding, formwork erecting, concrete pouring and the like of the reinforced concrete structure are adopted, so that the construction procedures are more, the workload is large, and the popularization and the application of the steel reinforced concrete structure are hindered. With the popularization and application of the assembly type building, the steel reinforced concrete components are prefabricated in a factory, and the components are directly assembled on site, so that a large amount of site work can be reduced, and the popularization of the assembly type steel reinforced concrete composite structure with excellent anti-seismic performance is possible. And wherein be connected between precast shaped steel concrete beam and the precast profiled steel sheet concrete composite floor because of being connected between profiled steel sheet and the shaped steel, can not use the peg directly to fix profiled steel sheet on the shaped steel like traditional cast-in-place profiled steel concrete composite structure way, so, this problem of reliable connection between precast shaped steel concrete beam and the profiled steel sheet concrete composite floor still needs to be solved urgently.
Disclosure of Invention
The invention aims to provide a connecting structure and a mounting method of an assembly type steel-concrete composite plate and a section steel concrete beam, which are convenient for connecting the section steel concrete beam and a profiled steel sheet.
The technical scheme adopted by the invention is as follows:
according to an embodiment of a first aspect of the present invention, there is provided a connection structure of a fabricated steel-concrete composite slab and a steel reinforced concrete beam, including:
the assembly type steel-concrete composite beam comprises an assembly type steel-concrete beam welded with threaded shear fasteners, an assembly type steel-concrete composite plate with reserved holes on a profiled steel sheet at the end part and the threaded shear fasteners, wherein the plurality of threaded shear fasteners are welded and fixed on the upper flange of the medium-sized steel of the assembly type steel-concrete beam at certain intervals; and the edge part of both ends of profiled sheet is opened has a plurality ofly the hole that screw thread shear fastener corresponds, the profiled sheet passes through screw thread shear fastener welded fastening is adjacent on the assembled shaped steel concrete beam, the profiled sheet that the trompil was reserved to the tip of assembled steel-concrete composite board through high strength bolt, gasket and nut links together with assembled shaped steel concrete beam, and the secondary pouring concrete forms the connection structure of assembled steel-concrete composite board and shaped steel concrete beam on the profiled sheet of connection position department.
Has the advantages that: according to the connecting structure of the assembled steel-concrete combined plate and the steel reinforced concrete beam, the threaded shear fasteners are welded and fixed on the upper flange of the section steel in the assembled prefabricated steel reinforced concrete beam, the section steel and the reinforcement cage are placed through the formwork, and the concrete is poured to form the assembled prefabricated steel reinforced concrete beam, so that exposed screw rods are arranged on the steel reinforced concrete beam, the profiled steel plate with the reserved opening at the end part of the assembled steel-concrete combined plate can be fixed with the assembled steel reinforced concrete beam welded with the threaded shear fasteners through the threaded shear fasteners, the problem that the prefabricated profiled steel plate, a concrete combined floor slab and the prefabricated steel reinforced concrete beam cannot be connected is solved, the construction is simple and convenient, the construction efficiency can be improved, welding equipment is not needed on site, and the requirement on construction equipment is lowered.
According to an embodiment of the first aspect of the present invention, the fabricated type steel reinforced concrete beam with the threaded shear fastener further comprises a reinforcement cage consisting of square spiral stirrups and longitudinal reinforcements, wherein the spiral stirrups are placed outside the section steels in the fabricated type steel reinforced concrete beam.
According to an embodiment of the first aspect of the present invention, further, the helical stirrup is a square helical stirrup, which forms a reinforcement cage with the longitudinal reinforcement.
According to an embodiment of the first aspect of the present invention, further, the fabricated type steel reinforced concrete beam is a fabricated full type H-shaped steel reinforced concrete beam to prevent earthquake reverse action.
According to an embodiment of the first aspect of the present invention, further, the fabricated steel-concrete composite slab is a profiled steel sheet and concrete slab composite floor slab.
According to an embodiment of the first aspect of the present invention, further, the profiled steel sheet is a closed-type profiled steel sheet, or an open-type profiled steel sheet.
According to an embodiment of the first aspect of the present invention, further, the profiled steel sheet and concrete slab composite floor slab is an assembled steel-concrete composite slab with openings reserved at the ends of the profiled steel sheet.
According to an embodiment of the first aspect of the present invention, the threaded shear fastener further comprises a high strength bolt shank, a washer and a nut, wherein a head of the high strength bolt shank is fixed on an upper flange of the H-beam, a fabricated steel-concrete composite slab with an opening reserved in an end profiled steel sheet is placed thereon, and the fabricated profiled steel-concrete beam and the profiled steel sheet are connected together by the high strength bolt, the washer and the nut.
According to the embodiment of the first aspect of the invention, further, the section steel in the section steel concrete beam further comprises an I-shaped steel, and a section steel section form formed by combining a channel steel, an angle steel and the like.
According to a second aspect of the present invention, there is provided a method for installing a fabricated type steel reinforced concrete beam and a steel-concrete composite slab, comprising the steps of:
s1, prefabricating the steel reinforced concrete beam: binding longitudinal steel bars on square spiral stirrups, then placing the square spiral stirrups outside the section steel, inserting and arranging a plurality of high-strength bolts in gaps of the square spiral stirrups, welding the heads of the high-strength bolts on the upper flanges of the section steel at intervals, supporting a formwork, and pouring concrete to the upper surfaces of the section steel for a certain distance;
s2, reserving the fabricated steel-concrete composite plate with the opening at the end part of the profiled steel sheet: the edge part of the end part of the profiled steel sheet is provided with a plurality of holes corresponding to the high-strength bolts, the profiled steel sheet with the holes formed at the end part of the assembled steel-concrete composite plate passes through the high-strength bolt rods and is placed on the assembled steel reinforced concrete beam, the assembled steel reinforced concrete beam is locked and fixed through nuts, and a gasket is arranged between the nuts and the profiled steel sheet;
s3, performing secondary pouring of concrete at the connecting part between the assembled type steel reinforced concrete beam with the threaded shear fasteners and the assembled type steel-concrete composite slab with the reserved holes of the end profiled steel sheet: and (3) secondary pouring concrete on the profiled steel sheet at the connecting part to form a connecting structure of the assembled steel-concrete composite plate and the section steel concrete beam.
Has the advantages that: the mounting method of the assembly type steel reinforced concrete beam and the steel-concrete composite plate reduces the steps of site construction by prefabricating the steel reinforced concrete and the concrete beam in a factory in advance. And the exposed screw rods are arranged on the profiled steel concrete beam, so that the profiled steel sheet can be firmly connected with the profiled steel concrete beam, the on-site construction efficiency is high, the construction time is shortened, welding equipment is not needed, and the requirement on construction equipment is reduced.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1, an embodiment of the present invention provides a connection structure of an assembled type steel-concrete beam and a prefabricated steel-concrete composite slab, which mainly comprises an assembled type steel-concrete beam welded with a threaded shear fastener, an assembled steel-concrete composite slab with a preformed opening on an end profiled steel sheet, and a threaded shear fastener.
The prefabricated steel reinforced concrete beam welded with the threaded shear fasteners comprises beam internal section steel 101, beam internal casting concrete 103 and a plurality of threaded shear fasteners 102 welded on the upper flange of the section steel, wherein the plurality of threaded shear fasteners 102 are fixedly welded on the upper flange of the section steel 101 at a certain interval, the concrete 103 is cast outside the section steel 101, and the screw rod parts of the threaded shear fasteners 102 are exposed out of the concrete 103. The assembled steel-concrete composite slab with the reserved opening of the end profiled steel sheet consists of profiled steel sheets 201 and concrete 202 poured on the profiled steel sheets, holes corresponding to a plurality of threaded shear fasteners 102 are formed in the edges of two ends of the profiled steel sheets 201 in the assembled steel-concrete composite slab, and the profiled steel sheets 201 are fixedly connected to adjacent assembled precast steel reinforced concrete beams through the threaded shear fasteners 102. The connection structure of the assembled type steel reinforced concrete beam and the assembled type prefabricated steel-concrete composite slab fixes the threaded shear fasteners 102 on the steel beams 101, and then forms the connection structure of the assembled type steel reinforced concrete beam and the assembled type prefabricated steel-concrete composite slab through secondary concrete pouring. Because the exposed screw rods are arranged on the assembled type steel reinforced concrete beam, the profiled steel sheet 201 can be fixed with the assembled type steel reinforced concrete beam through the threaded shear fasteners 102, the problem that the profiled steel sheet 201 in the assembled type steel-concrete composite plate cannot be connected with the assembled type prefabricated type steel reinforced concrete beam is solved, the construction is simple and convenient, the construction efficiency can be improved, no welding equipment is needed on site, and the requirements for construction equipment are reduced.
Preferably, the fabricated precast reinforced concrete beam with the threaded shear fastener further includes a reinforcement cage consisting of a spiral stirrup 104 and a longitudinal reinforcement 105, the spiral stirrup being placed outside the section steel 101 in the fabricated reinforced concrete beam. By providing the helical stirrups 104 and the longitudinal reinforcement 105, the interaction between the section steel and the concrete is further enhanced.
Preferably, the spiral stirrup is a square spiral stirrup 104, the square spiral stirrup and the longitudinal steel bar 105 form a steel bar cage, and the square spiral stirrup 104 can further improve the ductility and the torsion resistance of the fabricated steel reinforced concrete member, reduce the steel bar consumption, improve the working efficiency and ensure the engineering quality.
Preferably, the fabricated type steel reinforced concrete beam is a fabricated full type H-shaped steel reinforced concrete beam to prevent the reverse action of earthquake. The beam middle section steel 101 is H-shaped steel. The H-shaped steel has the characteristics of strong bending resistance, simple construction, cost saving and light structural weight in all directions.
Preferably, concrete 202 is poured in advance on the profiled steel sheet 201, and the concrete 202 is combined with the profiled steel sheet 201 to form the prefabricated steel-concrete composite slab with the open holes reserved on the profiled steel sheets at the ends.
Preferably, the profiled steel sheet 201 is a closed profiled steel sheet 201 or an open profiled steel sheet 201.
Preferably, the threaded shear fastener 102 includes a high-strength bolt, a nut, and a washer, the head of the high-strength bolt is fixed to the upper flange of the H-beam 101, an assembled steel-concrete composite slab with an opening reserved in the end profiled steel sheet 201 is placed thereon, and the assembled precast steel-concrete beam is coupled and fixed to the profiled steel sheet by the high-strength bolt, the washer, and the nut. The structure is simple in structure, good in anti-pulling effect and convenient to install and construct on site.
Preferably, the prefabricated steel concrete beam further comprises I-shaped steel, channel steel, angle steel and the like which are combined to form a section steel form. Specifically, the steel reinforced concrete beam is one of solid web type steel reinforced concrete beams composed of H-shaped steel, I-shaped steel, channel steel or angle steel.
The embodiment of the invention also provides an installation method of the assembled type steel reinforced concrete beam and the steel-concrete composite slab, which comprises the following steps:
s1, prefabricating the steel reinforced concrete beam: binding longitudinal steel bars 105 on square spiral stirrups 104, then placing the square spiral stirrups 104 outside the section steel 101, inserting and arranging a plurality of high-strength bolts in gaps of the square spiral stirrups 104, welding the heads of the high-strength bolts on the upper flange of the section steel 101 at intervals according to a certain interval, supporting a formwork, and pouring concrete 103 to the upper surface of the section steel 101 at a certain distance;
s2, reserving the fabricated steel-concrete composite plate with the opening at the end part of the profiled steel sheet: a plurality of holes corresponding to high-strength bolts are formed in the edge part of the end part of a profiled steel sheet 201, the profiled steel sheet 201 with the holes formed in the end part of the fabricated steel-concrete composite plate penetrates through the high-strength bolt rod 102 and is placed on the fabricated profiled steel 101 in the fabricated profiled steel-concrete beam, locking and fixing are carried out through nuts, and a gasket is arranged between the nuts and the profiled steel sheet 201;
s3, performing secondary pouring of concrete at the connecting part between the assembled type steel reinforced concrete beam with the threaded shear fasteners and the assembled type steel-concrete composite slab with the reserved holes of the end profiled steel sheet: and secondary pouring concrete on the profiled steel sheet 201 at the connecting part to form a connecting structure of the assembled steel-concrete composite plate and the section steel concrete beam.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.
Claims (10)
1. Assembled steel-concrete composite board and shaped steel concrete beam's connection structure, its characterized in that includes: the prefabricated steel-concrete composite beam comprises a prefabricated steel reinforced concrete beam with a threaded shear-resistant fastener, a prefabricated steel-concrete composite plate with a reserved opening on a profiled steel plate at the end part and the threaded shear-resistant fastener, wherein the plurality of threaded shear-resistant fasteners are welded and fixed on the medium-sized steel upper flange of the prefabricated steel reinforced concrete beam at certain intervals; and the edge part of both ends of profiled sheet is opened has a plurality ofly the hole that screw thread shear fastener corresponds, the profiled sheet passes through screw thread shear fastener welded fastening is adjacent on the assembled shaped steel concrete beam, the profiled sheet that the trompil was reserved to the tip of assembled steel-concrete composite board through high strength bolt, gasket and nut links together with assembled shaped steel concrete beam, and the secondary pouring concrete forms the connection structure of assembled steel-concrete composite board and shaped steel concrete beam on the profiled sheet of connection position department.
2. The structure for connecting an assembled steel-concrete composite panel and a steel reinforced concrete beam according to claim 1, wherein: the prefabricated section steel concrete beam with the threaded shear-resistant fastener further comprises a reinforcement cage consisting of square spiral stirrups and longitudinal steel bars, and the spiral stirrups are placed outside the section steel in the prefabricated section steel concrete beam.
3. The structure for connecting an assembled steel-concrete composite panel and a steel reinforced concrete beam according to claim 2, wherein: the spiral stirrup is a square spiral stirrup, and the spiral stirrup and the longitudinal steel bar form a steel bar cage.
4. The structure for connecting an assembled steel-concrete composite panel and a steel reinforced concrete beam according to claim 1, wherein: the assembled type steel reinforced concrete beam is an assembled type full H-shaped steel reinforced concrete beam to prevent the reverse action of earthquake.
5. The structure for connecting an assembled steel-concrete composite panel and a steel reinforced concrete beam according to claim 1, wherein: the assembled steel-concrete composite slab is a profiled steel sheet and concrete slab composite floor slab.
6. The structure for connecting an assembled steel-concrete composite panel and a steel reinforced concrete beam according to claim 5, wherein: the profiled steel sheet is a closed profiled steel sheet or an open profiled steel sheet.
7. The structure for connecting an assembled steel-concrete composite panel and a steel reinforced concrete beam according to claim 5, wherein: the profiled steel sheet and concrete slab composite floor slab is an assembled steel-concrete composite slab with a reserved opening at the end part of the profiled steel sheet.
8. The structure for connecting an assembled steel-concrete composite panel and a steel reinforced concrete beam according to claim 4, wherein: the threaded shear-resistant fastener comprises a high-strength bolt rod, a gasket and a nut, wherein the head of the high-strength bolt rod is fixed on the upper flange of the H-shaped steel, the assembled steel-concrete composite plate with a reserved hole on the profiled steel plate at the end part is placed on the high-strength bolt rod, the gasket and the nut, and the assembled steel reinforced concrete beam and the profiled steel plate are connected together.
9. The structure for connecting an assembled steel-concrete composite panel and a steel reinforced concrete beam according to claim 4, wherein: the section steel in the section steel concrete beam also comprises I-shaped steel and a section steel section form formed by combining channel steel, angle steel and the like.
10. The method for installing the assembled steel-concrete composite slab and the steel-concrete composite slab, which uses the connection structure of the assembled steel-concrete composite slab and the steel-concrete composite slab as claimed in any one of claims 1 to 9, is characterized by comprising the following steps:
s1, prefabricating the steel reinforced concrete beam: binding longitudinal steel bars on square spiral stirrups, then placing the square spiral stirrups outside the section steel, inserting and arranging a plurality of high-strength bolts in gaps of the square spiral stirrups, welding the heads of the high-strength bolts on the upper flanges of the section steel at intervals, supporting a formwork, and pouring concrete to the upper surfaces of the section steel for a certain distance;
s2, reserving the fabricated steel-concrete composite plate with the opening at the end part of the profiled steel sheet: the edge part of the end part of the profiled steel sheet is provided with a plurality of holes corresponding to the high-strength bolts, the profiled steel sheet with the holes formed at the end part of the assembled steel-concrete composite plate passes through the high-strength bolt rods and is placed on the assembled steel reinforced concrete beam, the assembled steel reinforced concrete beam is locked and fixed through nuts, and a gasket is arranged between the nuts and the profiled steel sheet;
s3, performing secondary pouring of concrete at the connecting part between the assembled type steel reinforced concrete beam with the threaded shear fasteners and the assembled type steel-concrete composite slab with the reserved holes of the end profiled steel sheet: and (3) secondary pouring concrete on the profiled steel sheet at the connecting part to form a connecting structure of the assembled steel-concrete composite plate and the section steel concrete beam.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117386006A (en) * | 2023-12-12 | 2024-01-12 | 中铁房地产集团设计咨询有限公司 | Multi-high-rise assembled beam through type outsourcing concrete type steel special-shaped column structure system |
| CN117386006B (en) * | 2023-12-12 | 2024-03-22 | 中铁房地产集团设计咨询有限公司 | Multi-high-rise assembled beam through type outsourcing concrete type steel special-shaped column structure system |
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Application publication date: 20220322 |