CN111119347A - Connecting joint of partially precast concrete H-shaped steel composite beam and floor slab - Google Patents
Connecting joint of partially precast concrete H-shaped steel composite beam and floor slab Download PDFInfo
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- CN111119347A CN111119347A CN202010099842.2A CN202010099842A CN111119347A CN 111119347 A CN111119347 A CN 111119347A CN 202010099842 A CN202010099842 A CN 202010099842A CN 111119347 A CN111119347 A CN 111119347A
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- Prior art keywords
- precast concrete
- shaped steel
- floor slab
- floor
- steel
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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
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
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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)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a connecting node of a partially precast concrete H-shaped steel composite beam and a floor slab, which comprises the partially precast concrete H-shaped steel composite beam and the floor slab, wherein the partially precast concrete H-shaped steel composite beam comprises H-shaped steel, precast concrete and a reinforcing mesh arranged in the precast concrete, the bottom of the precast concrete is tightly attached to a wing plate at the bottom of the H-shaped steel, two side surfaces of the precast concrete are flush with the edges of the wing plates of the H-shaped steel, a floor slab space is arranged between the top of the precast concrete and the wing plate at the top of the H-shaped steel, one section of a middle web plate of the H-shaped steel is embedded in the precast concrete, the other section of the middle web plate of the H-shaped steel is positioned in the floor slab space, the wing plate at the top of the H-shaped. The invention saves the net height of the building, improves the bearing capacity and the rigidity of the steel-concrete composite beam, effectively controls the deflection of a horizontal structure, improves the comfort, reduces the cracking problem of the inner partition wall, reduces the construction cost and improves the installation efficiency.
Description
Technical Field
The invention relates to the technical field of building structures, in particular to a connecting node of a partially precast concrete H-shaped steel composite beam and a floor slab.
Background
As a key technology of building industrialization, an assembled steel structure building has a series of advantages of standardized design, factory manufacturing, assembly construction and the like, but the connection mode of a floor slab and an H-shaped steel beam is that the floor slab is placed on the upper flange of the H-shaped steel, the net height of the building is greatly sacrificed, even if the floor slab can be lowered, the building decoration treatment at the later stage of the construction is difficult, and the combined effect of the H-shaped steel and a concrete floor slab is difficult to realize when the H-shaped steel is a main frame beam. How to effectively solve the problems in the technical field of the prior assembled steel structure building becomes a difficult problem in the industry.
Disclosure of Invention
The invention aims to solve the problems of loss of the existing connection mode of the floor slab and the H-shaped steel beam to the building clear height, defects of structural combination stress and the like, provides a connection node of a part of precast concrete H-shaped steel combination beam and the floor slab, which saves the building clear height, increases the combination effect of the steel-concrete combination beam, and improves the bearing capacity and rigidity of the steel-concrete combination beam, thereby effectively controlling the deflection of a horizontal structure, improving the comfort and reducing the cracking problem of an inner partition wall.
In order to achieve the purpose, the invention adopts the following technical scheme: the connecting node comprises a part of precast concrete H-shaped steel composite beam and a floor slab, wherein the part of precast concrete H-shaped steel composite beam comprises H-shaped steel, precast concrete and a reinforcing mesh arranged in the precast concrete, the bottom of the precast concrete is tightly attached to a wing plate at the bottom of the H-shaped steel, two side surfaces of the precast concrete are flush with the edge of the wing plate of the H-shaped steel, a floor slab space is arranged between the top of the precast concrete and the wing plate at the top of the H-shaped steel, one section of a web plate in the middle of the H-shaped steel is embedded in the precast concrete, the other section of the web plate is located in the floor slab space, the wing plate at the top of the H-shaped steel is arranged in the floor slab, and the bottom of the floor slab is tightly attached to. According to the scheme, a part of height is reserved when concrete is poured in the H-shaped steel abdominal cavity, and when a floor slab is constructed and installed, the reserved cavity part and the floor slab are poured with concrete together to form a composite beam; the scheme is to overcome the defects of the connection mode of the existing floor slab and the H-shaped steel beam in the aspects of building clear height, structural combination stress and the like, provide a connection node of a partially precast concrete H-shaped steel combination beam and the floor slab, effectively combine the concrete floor slab and the pre-partially precast concrete H-shaped steel beam, effectively combine the assembly type steel structure technology and the assembly type concrete structure technology, fully play the earthquake resistance superiority and the connection reliability of the steel structure technology, the structural safety, the fireproof and corrosion resistance performance and the decoration performance of the assembly type concrete technology, especially the connection node of the partially precast concrete H-shaped steel combination beam and the floor slab not only saves the building clear height, but also increases the combination effect of the steel-concrete combination beam, improves the bearing capacity and the rigidity of the steel-concrete combination beam, thereby effectively controlling the deflection of a horizontal structure, improve the comfort and reduce the cracking problem of the inner partition wall.
Preferably, the floor slab is provided with shear steel bars, and one section of the H-shaped steel middle web plate located in the floor slab space is provided with a through hole through which the shear steel bars can pass. This scheme is for satisfying the composite effect of floor and this combination beam, can punch at every fixed interval on the H shaped steel web to make things convenient for shear reinforcement to pass, and the mode of trompil can be for little round hole, big round hole, diamond-shaped hole, square hole, elliptical aperture, trapezoidal hole or can adopt honeycomb beam hole to arrange the reinforcing bar.
Preferably, the reinforcing mesh comprises a plurality of transverse stirrups penetrating through the web of the H-shaped steel and a plurality of vertical reinforcing bars connected with the transverse stirrups.
Preferably, the H-shaped steel is one of ordinary H-shaped steel, perforated ordinary H-shaped steel, honeycomb H-shaped steel, variable-section H-shaped steel and unequal-flange H-shaped steel.
Preferably, the floor slab is one of a cast-in-place concrete floor slab, a steel bar truss floor bearing plate, a steel bar truss composite floor slab, a detachable steel bar truss floor bearing plate, a profiled steel sheet, a prestressed composite floor slab and an SP prestressed hollow floor slab.
The floor slab is placed on the H-shaped steel precast concrete, and compared with the traditional floor slab which is placed on the upper flange of the H-shaped steel beam, the floor slab greatly saves the net height of the building and improves the quality of the building; meanwhile, the structure has an obvious stress combination effect, and the bearing capacity and the rigidity of the traditional H-shaped steel beam are improved, so that the deflection of the horizontal structure can be effectively controlled, the comfort is improved, and the cracking problem of the inner partition wall is reduced; compared with the traditional precast concrete composite beam, the bearing capacity performance is greatly improved, and the connection performance of the nodes is greatly improved due to the connection mode of the steel structure; the die is not needed when the die is prefabricated in a factory, so that the manufacturing cost is greatly reduced; and a scaffold is not needed in field installation, so that the construction cost is reduced, and the installation efficiency is improved.
Therefore, the invention has the following beneficial effects: the steel-concrete composite beam has the advantages that the building clear height is saved, the combination effect of the steel-concrete composite beam is increased, and the bearing capacity and the rigidity of the steel-concrete composite beam are improved, so that the deflection of a horizontal structure can be effectively controlled, the comfort is improved, the cracking problem of an inner partition wall is reduced, the construction cost is reduced, and the installation efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of a joint for connecting a steel-concrete composite beam and a steel bar truss floor deck according to the present invention.
Fig. 2 is a schematic structural view of a joint for connecting a steel-concrete composite beam and a steel bar truss composite floor slab according to the present invention.
Fig. 3 is a schematic view of a node structure of the connection between the steel-concrete composite beam and the cast-in-place concrete floor slab according to the present invention.
In the figure: 1. h-shaped steel 2, precast concrete 3, vertical steel bar 4 and transverse stirrup
5. Floor 6, shear reinforcement.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
A connecting node of a partially precast concrete H-shaped steel composite beam and a floor slab comprises the partially precast concrete H-shaped steel composite beam and the floor slab 5, wherein the partially precast concrete H-shaped steel composite beam comprises H-shaped steel 1, precast concrete 2 and a reinforcing mesh arranged in the precast concrete 2, the bottom of the precast concrete 2 is tightly attached to a wing plate at the bottom of the H-shaped steel 1, two side surfaces of the precast concrete 2 are flush with the edge of the wing plate of the H-shaped steel 1, a floor slab space is arranged between the top of the precast concrete 2 and the wing plate at the top of the H-shaped steel 1, one section of a middle web plate of the H-shaped steel 1 is embedded in the precast concrete 2, the other section of the middle web plate of the H-shaped steel 1 is positioned in the floor slab space, the wing plate at;
the floor 5 is provided with shear steel bars 6, and a section of the middle web plate of the H-shaped steel 1, which is positioned in the space of the floor 5, is provided with through holes through which the shear steel bars 6 can pass;
the reinforcing mesh comprises a plurality of transverse stirrups 4 penetrating through the web plate of the H-shaped steel 1 and a plurality of vertical reinforcing steel bars 5 connected with the transverse stirrups 4;
the H-shaped steel 1 is one of ordinary H-shaped steel, perforated ordinary H-shaped steel, honeycomb H-shaped steel, variable cross-section H-shaped steel and unequal flange H-shaped steel;
the floor 5 is one of a cast-in-place concrete floor, a steel bar truss floor bearing plate, a steel bar truss composite floor, a detachable steel bar truss floor bearing plate, a profiled steel sheet, a prestressed composite floor and an SP prestressed hollow floor;
as shown in fig. 1, the joint is a joint of a partially precast concrete H-beam combination beam and a floor slab 5 (steel bar truss floor deck);
as shown in fig. 2, the joint is a joint between a partially precast concrete H-beam composite beam and a floor slab 5 (a steel bar truss composite floor slab);
as shown in fig. 2, it is a connection node of a partially precast concrete H-beam and a floor slab 5 (cast-in-place concrete floor slab).
The concrete implementation process is that firstly, longitudinal steel bars 3 and stirrups 4 are bound in a abdominal cavity of the H-shaped steel 1, then concrete 2 is poured, and a part of precast concrete H-shaped steel composite beam is formed; and after the partial precast concrete H-shaped steel composite beam is installed in place, installing a floor slab 5, and arranging shear-resistant construction ribs 6 to form a combined system to construct a complete connecting node of the partial precast concrete H-shaped steel composite beam and the floor slab.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (5)
1. The utility model provides a connected node of part precast concrete H shaped steel combination beam and floor, its characterized in that, including part precast concrete H shaped steel combination beam, floor, part precast concrete H shaped steel combination beam include H shaped steel, precast concrete, locate the reinforcing bar net in the precast concrete, precast concrete bottom and H shaped steel bottom pterygoid lamina paste tightly, precast concrete both sides face and H shaped steel pterygoid lamina edge parallel and level, be equipped with the floor space between precast concrete top and the H shaped steel top pterygoid lamina, H shaped steel middle part web one section bury underground in precast concrete, another section is located the floor space, H shaped steel top pterygoid lamina locate in the floor, floor bottom and precast concrete top paste tightly.
2. The joint of a partially precast concrete H-beam combination beam and a floor slab as claimed in claim 1, wherein the floor slab is provided with shear reinforcements, and a section of the H-beam central web located in the floor slab space is provided with through holes through which the shear reinforcements can pass.
3. The joint of a partially precast concrete H-beam combination beam with a floor slab as claimed in claim 1, wherein the reinforcing mesh comprises a plurality of transverse stirrups passing through the web of the H-beam and a plurality of vertical reinforcements connected to the transverse stirrups.
4. The joint of a partially precast concrete H-beam combination beam and a floor slab according to claim 1, wherein the H-beam is one of a general H-beam, a perforated general H-beam, a honeycomb H-beam, a variable section H-beam, and an unequal flange H-beam.
5. The connection node of a partially precast concrete H-beam combination beam and a floor slab according to claim 1, wherein the floor slab is one of a cast-in-place concrete floor slab, a steel bar truss composite floor slab, a detachable steel bar truss floor slab, a profiled steel sheet, a prestressed composite floor slab and a SP prestressed hollow floor slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010099842.2A CN111119347A (en) | 2020-02-18 | 2020-02-18 | Connecting joint of partially precast concrete H-shaped steel composite beam and floor slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010099842.2A CN111119347A (en) | 2020-02-18 | 2020-02-18 | Connecting joint of partially precast concrete H-shaped steel composite beam and floor slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111119347A true CN111119347A (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010099842.2A Pending CN111119347A (en) | 2020-02-18 | 2020-02-18 | Connecting joint of partially precast concrete H-shaped steel composite beam and floor slab |
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| CN (1) | CN111119347A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738004A (en) * | 2021-09-26 | 2021-12-03 | 上海泰大建筑科技有限公司 | Combined beam plate structure and construction method thereof |
-
2020
- 2020-02-18 CN CN202010099842.2A patent/CN111119347A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738004A (en) * | 2021-09-26 | 2021-12-03 | 上海泰大建筑科技有限公司 | Combined beam plate structure and construction method thereof |
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