CN214696113U - Connection structure of assembled prefabricated floor and composite beam - Google Patents

Connection structure of assembled prefabricated floor and composite beam Download PDF

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Publication number
CN214696113U
CN214696113U CN202120328859.0U CN202120328859U CN214696113U CN 214696113 U CN214696113 U CN 214696113U CN 202120328859 U CN202120328859 U CN 202120328859U CN 214696113 U CN214696113 U CN 214696113U
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China
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slab
floor slab
bars
reinforcing
prefabricated floor
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CN202120328859.0U
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Inventor
傅新林
胡洪坡
张洪涛
郭振锋
许光
杨林
高人侨
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Hainan Weite Construction Technology Co ltd
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Hainan Weite Construction Technology Co ltd
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Abstract

The utility model discloses a connection structure of assembled prefabricated floor and coincide roof beam, including prefabricated floor and coincide roof beam, the thickness of prefabricated floor is floor design thickness, pre-buried pipeline and the inboard atress reinforcing bar that has in the prefabricated floor, prefabricated floor with the coincide roof beam passes through connected node and connects, connected node sets up adjacent two the side of prefabricated floor reaches in the space that the top surface of coincide roof beam encloses, connected node is the inside concreting layer that is provided with framework of steel reinforcement. The utility model discloses a connection structure of assembled prefabricated floor and coincide roof beam has reduced the wet work volume of job site, has improved the work efficiency of site operation.

Description

Connection structure of assembled prefabricated floor and composite beam
Technical Field
The utility model relates to a building structure technical field, in particular to connection structure of assembled prefabricated floor and coincide roof beam.
Background
The fabricated building is formed by assembling prefabricated components on a construction site, has the effects of high-efficiency construction, high quality, low resource consumption and low environmental influence based on the concepts of standardized design, industrial production, fabricated construction, informatization management and intelligent application, is a modern industrial production mode, and accords with the development concept of energy conservation, environmental protection and green construction in China. Common prefabricated components of main structures in the fabricated concrete building comprise prefabricated walls, prefabricated beams, prefabricated floor slabs, prefabricated columns, prefabricated stairs, prefabricated balconies and the like, wherein the floor slabs are the most widely applied structural components in the fabricated concrete building at present due to the advantages of simplicity in manufacturing, convenience in installation, small influence on the anti-seismic performance of the structure and the like.
At present, the prefabricated floor is the coincide floor, and the coincide floor is formed by two-layer coincide of prefabricated bottom plate and cast in situ reinforced concrete, and wherein prefabricated bottom plate and prefabricated superposed beam transport to the job site and hoist to the assigned position after the mill preparation is accomplished, then lay pre-buried water and electricity pipeline and floor upper reinforcing bar above that with prefabricated bottom plate as the template, then carry out upper concrete pouring on prefabricated bottom plate and prefabricated superposed beam, both form whole common bearing load after the concrete hardens.
Above-mentioned prefabricated floor needs to accomplish in situ that the water and electricity pipeline is pre-buried in the upper concrete, upper reinforcing bar ligature and upper concrete of pouring, still needs the workman to carry out a large amount of wet operations at the scene, and the efficiency of construction is lower.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a connection structure of assembled precast floor and coincide roof beam has reduced the wet work volume of job site, has improved the work efficiency of site operation.
In order to achieve the above object, the utility model provides a following technical scheme:
the connecting structure of the assembled prefabricated floor slab and the superposed beams comprises the prefabricated floor slab and the superposed beams, wherein the thickness of the prefabricated floor slab is designed for the thickness of the floor slab, pipelines and in-slab stressed steel bars are pre-buried in the prefabricated floor slab, the prefabricated floor slab and the superposed beams are connected through connecting nodes, the connecting nodes are arranged in the space enclosed by the side surfaces of the two adjacent prefabricated floor slabs and the top surfaces of the superposed beams, and the connecting nodes are pouring concrete layers with steel bar frameworks arranged inside.
Optionally, the steel reinforcement framework comprises a stirrup structure at the top end of the composite beam, and the stirrups are connected together through a beam longitudinal bar.
Optionally, the steel bar framework comprises a steel bar mesh, the steel bar mesh comprises a first additional stressed steel bar and a second additional stressed steel bar, and the first additional stressed steel bar and the second additional stressed steel bar are arranged in a crossed manner.
Optionally, the reinforcing mesh is provided with two layers, including an upper reinforcing mesh and a lower reinforcing mesh, the upper reinforcing mesh is arranged near the top surface of the poured concrete layer, and the lower reinforcing mesh is arranged near the bottom surface of the poured concrete layer.
Optionally, the first additional stressed steel bar and the second additional stressed steel bar are arranged perpendicularly in a crossed mode.
Optionally, the precast floor slab is close to the side of composite beam is the second grade step face, the second grade step face is including the upper step face and the lower floor step face that set gradually, the edge of upper reinforcing bar net is placed on the upper step face, the edge of lower floor reinforcing bar net is placed on the lower floor step face.
Optionally, the in-slab stressed reinforcing steel bars comprise upper-layer plate stressed reinforcing steel bars and lower-layer plate stressed reinforcing steel bars, the upper-layer plate stressed reinforcing steel bars are close to the upper surface of the prefabricated floor slab, and the lower-layer plate stressed reinforcing steel bars are close to the lower surface of the prefabricated floor slab.
Optionally, the first and second additional stressed rebars are placed avoiding stirrups of the composite beam.
Optionally, the stressed reinforcing steel bars in the upper plate and the stressed reinforcing steel bars in the lower plate both comprise plate longitudinal bars and plate transverse bars which are arranged in a crossed mode, and the plate transverse bars of the stressed reinforcing steel bars in the upper plate extend into the connecting nodes.
Optionally, the plate transverse bar of the stressed steel bar in the upper plate is arranged on the steel bar framework in a lapping mode.
According to the technical scheme, the utility model provides a connection structure of assembled precast floor and coincide roof beam, precast floor are for the whole precast concrete plate body structure of component factory, and its thickness is the thickness that sets up of floor, and pre-buried pipeline and the inboard atress reinforcing bar that has in the precast floor need not carry out bar arrangement and concrete placement to precast floor's superstructure again at the job site, only need to connect precast floor and coincide roof beam connected node carries out site concrete placement, has greatly reduced the wet work volume of job site, has improved the work efficiency of site operation, the cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a connection structure of an assembled prefabricated floor slab and a superposed beam provided by an embodiment of the present invention;
fig. 2 is the embodiment of the utility model provides a precast floor slab's structural schematic.
Wherein:
1. the prefabricated floor slab comprises a prefabricated floor slab, 101, an upper-layer step surface, 102, a lower-layer step surface, 2, second additional stressed steel bars, 3, beam longitudinal steel bars, 4, stirrups, 5, first additional stressed steel bars, 6, a poured concrete layer, 7, plate longitudinal steel bars, 8, plate transverse steel bars, 9 and a superposed beam.
Detailed Description
The utility model discloses a connection structure of assembled prefabricated floor and coincide roof beam has reduced the wet work volume of job site, has improved the work efficiency of site operation.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 2, the present invention provides a connection structure of prefabricated floor slab and composite beam, which includes a prefabricated floor slab 1 and a composite beam 9. The thickness of the prefabricated floor slab 1 is designed for the floor slab, pipelines and in-slab stressed steel bars are pre-buried in the prefabricated floor slab 1, the prefabricated floor slab 1 is connected with the superposed beams 9 through connecting nodes, the connecting nodes are arranged in a space defined by the side surfaces of the two adjacent prefabricated floor slabs 1 and the top surfaces of the superposed beams 9, and the connecting nodes are poured concrete layers 6 with steel bar frameworks inside.
The cross section of the frame beam of the superposed beam 9 is generally rectangular or T-shaped, when the floor structure is a prefabricated slab assembled floor, in order to reduce the height occupied by the structure and increase the building clearance, the section of the frame beam is usually cross-shaped or basket-shaped, in the assembled integral frame structure, the prefabricated beam is usually made into a T-shaped section, and after the prefabricated slab is installed in place, a part of concrete is poured again, so that the superposed beam is formed. The precast floor slab 1 used at the construction site does not require wet work (concrete placement) at the construction site.
The utility model discloses a connection structure of assembled precast floor and coincide roof beam, precast floor 1 is for the whole prefabricated good concrete plate body structure in the component factory, and its thickness is the thickness that sets up of floor, and pre-buried pipeline and the inboard atress reinforcing bar of having in precast floor 1 need not carry out bar arrangement and concrete placement to precast floor 1's superstructure again at the job site, only need to connect precast floor 1 and coincide roof beam 9 connected node carries out on-the-spot concrete placement, has significantly reduced the wet work volume of job site, has improved the work efficiency of site operation, the cost is reduced.
Specifically, the framework of steel reinforcement includes stirrup 4 that the 9 tops of composite beam spilt, and stirrup 4 is provided with a plurality ofly, and a plurality of stirrups 4 are followed the length direction parallel arrangement of composite beam 9, indulges muscle 3 through the roof beam between stirrup 4 and links together, and the 3 ligatures of muscle are indulged at the position of buckling of stirrup 4 to the roof beam, and the muscle 3 is indulged for the muscle that indulges of composite beam 9 to the roof beam.
Further, in order to improve the connection rigidity of the connection node, the steel bar framework further comprises a steel bar mesh, the steel bar mesh comprises a first additional stressed steel bar 5 and a second additional stressed steel bar 2, and the first additional stressed steel bar 5 and the second additional stressed steel bar 2 are arranged in a crossed mode, so that a mesh-shaped steel bar layer is formed. Specifically, the reinforcing bar net is provided with two-layerly, including upper reinforcing bar net and lower floor's reinforcing bar net, upper reinforcing bar net is close to concreting layer 6's top surface setting, lower floor's reinforcing bar net is close to concreting layer 6's bottom surface setting, upper reinforcing bar net and lower floor's reinforcing bar net are all buried underground in concreting layer 6.
In a specific embodiment, the first additional stressed steel bar 5 and the second additional stressed steel bar 2 are arranged in a vertical crossing manner, the first additional stressed steel bar 5 is arranged in parallel with the stirrup 4, the position of the stirrup 4 is avoided when the first additional stressed steel bar 5 is laid, the second additional stressed steel bar 2 is arranged in parallel with the beam longitudinal steel bar 3, and the position of the stirrup 4 and the beam longitudinal steel bar 3 is avoided when the second additional stressed steel bar 2 is laid.
In order to support the reinforcing mesh, the side surface of the precast floor slab 1 close to the superposed beam 9 is a secondary step surface, as shown in fig. 1, the secondary step surface includes an upper step surface 101 and a lower step surface 102 which are sequentially arranged, the edge of the upper reinforcing mesh is placed on the upper step surface 101, and the edge of the lower reinforcing mesh is placed on the lower step surface 102.
Specifically, the in-plate stressed reinforcing steel bars comprise upper-layer plate stressed reinforcing steel bars and lower-layer plate stressed reinforcing steel bars, the upper surface of the upper-layer plate stressed reinforcing steel bars, which is close to the prefabricated floor slab 1, is arranged, and the lower surface of the lower-layer plate stressed reinforcing steel bars, which is close to the prefabricated floor slab 1, is arranged. The upper plate inner stressed reinforcing steel bar and the lower plate inner stressed reinforcing steel bar comprise plate longitudinal bars 7 and plate transverse bars 8 which are arranged in a crossed mode, and the plate transverse bars 8 of the upper plate inner stressed reinforcing steel bars stretch into the connecting nodes. In order to improve the supporting strength of the plate transverse rib 8 extending into the connecting node, the plate transverse rib 8 of the stressed steel bar in the upper plate is erected on the steel bar framework of the superposed beam 9. In one embodiment, the plate cross bar 8 of the stressed steel bar in the upper plate is erected on the upper layer steel bar net.
The utility model discloses a connection structure of assembled prefabricated floor and coincide roof beam, prefabricated floor 1's thickness are floor design thickness, and cross sectional shape is the second grade step form, and the reinforcing bar of lower floor's step does not expose, and the reinforcing bar of upper step exposes, and both ends are overlapped on coincide roof beam 9, make connected node's bulk stiffness is better.
The utility model discloses a connection structure's of assembled precast floor slab and coincide roof beam construction method, the step is as follows:
(1) designing a mould according to the shape and the size of the precast floor slab 1, and designing the top surface of the precast floor slab 1 to be tightly attached to a mould table in consideration of the convenience in dismantling the mould, namely, forming a side mould into a shape with a wide upper part and a narrow lower part;
(2) arranging bottom reinforcements (stressed reinforcements in a lower plate) and top reinforcements (stressed reinforcements in an upper plate) of the prefabricated floor slab 1 according to design requirements, wherein the stressed reinforcements at the bottom and the top extend out of the die according to specified lengths; pouring concrete, curing and demolding;
(3) designing a mould according to the shape and the size of the prefabricated superposed beam 9, arranging reinforcing steel bars, pouring concrete, maintaining and demoulding;
(4) arranging a plurality of independent supports according to calculation, wherein the independent supports are used for supporting the superposed beam 9 and the precast floor slab 1 and adjusting the support height;
(5) installing a superposed beam 9 and adjusting the position;
(6) sealing and plugging are carried out at the contact position of the superposed beam 9 and the prefabricated floor slab 1 to prevent slurry leakage;
(7) installing a prefabricated floor slab and adjusting the position;
(8) placing a first additional stressed steel bar 5 and a second additional stressed steel bar 2;
(9) and pouring concrete at the node positions to form a poured concrete layer 6.
The utility model discloses a connection structure of assembled prefabricated floor and coincide roof beam, prefabricated floor 1 is whole prefabricated, and the cancellation truss muscle uses, practices thrift steel, and prefabricated floor 1 all accomplishes at the component factory, only sets up the additional atress reinforcing bar of additional connected node position at the job site, has guaranteed the wholeness of structure, and the cost is reduced has promoted the construction speed greatly.
In the description of the present solution, it is to be understood that the terms "upper", "lower", "vertical", "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present solution.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The connecting structure of the assembled prefabricated floor slab and the superposed beam comprises the prefabricated floor slab and the superposed beam, and is characterized in that the thickness of the prefabricated floor slab is designed for the thickness of the floor slab, pipelines and in-slab stressed steel bars are pre-embedded in the prefabricated floor slab, the prefabricated floor slab and the superposed beam are connected through connecting nodes, the connecting nodes are arranged in the space enclosed by the side surfaces of two adjacent prefabricated floor slabs and the top surface of the superposed beam, and the connecting nodes are poured concrete layers with steel bar frameworks inside.
2. The structure for connecting an assembled precast floor slab and a superposed beam as recited in claim 1, wherein the reinforcement cage includes a stirrup structure at the top end of the superposed beam, and the stirrups are connected together by longitudinal beam ribs.
3. The structure of assembling type precast floor slab and overlapped beam as claimed in claim 1, wherein the reinforcing cage comprises a reinforcing mesh, the reinforcing mesh comprises a first additional force-receiving reinforcing bar and a second additional force-receiving reinforcing bar, and the first additional force-receiving reinforcing bar and the second additional force-receiving reinforcing bar are crossed.
4. The structure of assembling type precast floor slab and overlapped beam as claimed in claim 3, wherein the reinforcing mesh is provided in two layers including an upper reinforcing mesh and a lower reinforcing mesh, the upper reinforcing mesh is provided near the top surface of the cast concrete layer, and the lower reinforcing mesh is provided near the bottom surface of the cast concrete layer.
5. A connection structure of fabricated floor slab and overlapped beam as claimed in claim 3, wherein the first additional force-bearing reinforcing bars and the second additional force-bearing reinforcing bars are vertically crossed.
6. The structure for connecting an assembled precast floor slab and a superposed beam according to claim 4, wherein the side of the precast floor slab close to the superposed beam is a secondary step surface, the secondary step surface comprises an upper step surface and a lower step surface which are arranged in sequence, the edge of the upper reinforcing mesh is placed on the upper step surface, and the edge of the lower reinforcing mesh is placed on the lower step surface.
7. The structure of claim 1, wherein the in-slab load-carrying rebars include an upper-slab load-carrying rebar and a lower-slab load-carrying rebar, the upper-slab load-carrying rebar being disposed adjacent to an upper surface of the precast floor slab, the lower-slab load-carrying rebar being disposed adjacent to a lower surface of the precast floor slab.
8. The structure of connecting an assembled precast floor slab and a composite girder according to claim 3, wherein the first additional load-bearing reinforcing bars and the second additional load-bearing reinforcing bars are placed to avoid stirrups of the composite girder.
9. The structure of connecting an assembled precast floor slab and a superposed beam according to claim 7, wherein the stressed steel bars in the upper slab and the stressed steel bars in the lower slab each include longitudinal slab bars and transverse slab bars arranged in a crossing manner, and the transverse slab bars of the stressed steel bars in the upper slab extend into the connection nodes.
10. The structure for connecting an assembled precast floor slab and a superposed beam according to claim 9, wherein the slab cross bars of the stressed steel bars in the upper slab are overlapped on the steel bar framework.
CN202120328859.0U 2021-02-05 2021-02-05 Connection structure of assembled prefabricated floor and composite beam Active CN214696113U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120328859.0U CN214696113U (en) 2021-02-05 2021-02-05 Connection structure of assembled prefabricated floor and composite beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120328859.0U CN214696113U (en) 2021-02-05 2021-02-05 Connection structure of assembled prefabricated floor and composite beam

Publications (1)

Publication Number Publication Date
CN214696113U true CN214696113U (en) 2021-11-12

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Application Number Title Priority Date Filing Date
CN202120328859.0U Active CN214696113U (en) 2021-02-05 2021-02-05 Connection structure of assembled prefabricated floor and composite beam

Country Status (1)

Country Link
CN (1) CN214696113U (en)

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