CN102839773B - Concrete composite slab floorslab with shear key and prefabricated construction and construction method - Google Patents
Concrete composite slab floorslab with shear key and prefabricated construction and construction method Download PDFInfo
- Publication number
- CN102839773B CN102839773B CN201210279952.2A CN201210279952A CN102839773B CN 102839773 B CN102839773 B CN 102839773B CN 201210279952 A CN201210279952 A CN 201210279952A CN 102839773 B CN102839773 B CN 102839773B
- Authority
- CN
- China
- Prior art keywords
- shear key
- concrete
- prefabricated
- prefabricated panel
- folding plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the field of fabricated type concrete buildings, in particular to a concrete composite slab floorslab with a shear key, a prefabricated construction and a construction method. The produced concrete composite slab floorslab can be used as a floorslab applied in the fabricated type concrete buildings. The concrete composite slab floorslab is composed of a prefabricated reinforced concrete base plate, a prefabricated concrete shear key and a cast-in-place reinforced concrete layer. The section of the prefabricated concrete shear key is designed to be in a lying-H shape, or a ring shape, or a hexagon shape or other shapes which can play a role in shearing resistance. One end of the prefabricated concrete shear key is embedded in the prefabricated reinforced concrete base plate, and the other end of the prefabricated concrete shear key is embedded in the cast-in-place reinforced concrete layer. When the cast-in-place reinforced concrete layer is made, concrete is poured to the top portion or above the top portion of the shear key. The shear key is used to connect the prefabricated reinforced concrete base plate and the cast-in-place reinforced concrete layer to form the whole floorslab, and the prefabricated concrete shear key is used to bear a shearing force and a tensile force between the prefabricated reinforced concrete base plate and the cast-in-place reinforced concrete layer. By means of the concrete composite slab floorslab with the shear key, using amount of steel bars used to connect the prefabricated reinforced concrete base plate and the cast-in-place reinforced concrete layer can be effectively reduced, and thickness of the concrete composite slab floorslab is reduced.
Description
Technical field
The present invention relates to assembly concrete building field, be specially a kind of concrete folding plate floor with shear key, prefabricated structure and construction method, the concrete folding plate floor of production can be used as the floor of application in assembly concrete building.
Background technology
At present, in the concrete construction of practical set formula, what floor was generally applied is composite slab by steel bar truss and concrete.This superimposed sheet forms (hereinafter to be referred as in-situ layer) by prefabricated reinforced concrete base plate (hereinafter to be referred as prefabricated panel) and cast-in-situ steel reinforced concrete layer, prefabricated panel is except normal configuration reinforcement, the bending type fine steel rib truss of also joining protruding plate face, this truss couples together the levels reinforcing bar of concrete floor, bears and makes the shearing of the changing of the relative positions and the mutually pulling force of disengaging mutually between prefabricated panel and in-situ layer.Because prefabricated and cast-in-place part adopts steel truss muscle, be connected, increased amount of reinforcement, be connected simultaneously for assurance is prefabricated with the reliable of cast-in-place part, the steel truss muscle of employing is higher, causes floor thicker, and construction costs is higher.
Summary of the invention
The object of this invention is to provide a kind of concrete folding plate floor with shear key, prefabricated structure and construction method, can reduce amount of reinforcement, reduce slab thickness, and with the same engineering demands of composite slab by steel bar truss and concrete floor.
For achieving the above object, technical scheme of the present invention is:
With a concrete folding plate floor for shear key, this concrete folding plate floor comprises in-situ layer setting up and down and prefabricated panel, is provided with shear key on prefabricated panel, and prefabricated panel is connected with in-situ layer by shear key, forms strong bonded structure.
The described concrete folding plate floor with shear key, the shearing that need to bear according to shear key and pulling force, shear key is uniformly distributed on prefabricated panel.
The described concrete folding plate floor with shear key, the Cross section Design of shear key be I shape, circular ring type, hexagonal or other play the shape of shearing resistance effect.
The described concrete folding plate floor with shear key, shear key one end is embedded in prefabricated panel, and the other end is embedded in in-situ layer.
The described concrete folding plate floor with shear key, shear key is that plain concrete or plain concrete add vertical core muscle making, and extends upwardly to in-situ layer end face, extends prefabricated panel bottom surface downwards.
The prefabricated structure of the described concrete folding plate floor with shear key, this prefabricated structure comprises presses beam, side steel form, the thick steel form in bottom surface, floor reinforcement, shear key and side steel form are set on the thick steel form in bottom surface, side steel form is arranged on the periphery of floor reinforcement and shear key, and shear key is by pressing beam to be fixed on the thick steel form in bottom surface.
The prefabricated structure of the described concrete folding plate floor with shear key, presses beam to adopt shaped steel to press beam, steel tube concrete soil pressure beam or other forms to press beam, presses beam to be provided with attached steel bushing, attached steel bushing coupling corresponding with shear key.
The prefabricated structure of the described concrete folding plate floor with shear key, presses beam two ends to be connected and fixed by the thick steel form of set bolt and bottom surface.
The construction method of the described concrete folding plate floor with shear key, comprises the steps:
(1) on the thick steel form in bottom surface, arrange floor reinforcement;
(2) shearing that need to bear according to shear key and pulling force, be evenly arranged in shear key on the thick steel form in bottom surface, according to the size of prefabricated panel, in the periphery of floor reinforcement and shear key, side steel form is set;
(3) with pressure beam, be pressed in the end face of shear key, and make the summit portion of shear key in attached steel bushing, to prevent when the fluid concrete, shear key lateral sliding;
(4) will press the end of beam to be fixed on the thick steel form in bottom surface with set bolt, fluid concrete be to the thickness of prefabricated panel; When making prefabricated panel, a part for shear key is embedded in prefabricated panel, another part exposes;
(5) when concrete to be cast reaches the intensity needing, remove set bolt, remove and press beam, form the prefabricated panel with shear key;
(6) after the prefabricated panel with shear key is located in building site, then arrange reinforcing bar in the above, fluid concrete, forms in-situ layer, the final superimposed sheet forming with shearing resistance.
The construction method of the described concrete folding plate floor with shear key, when making in-situ layer, by concrete casting to the top of shear key or more than top.
Adopt after such scheme, the present invention has following characteristics and effect:
1. the concrete folding plate floor of band shear key of the present invention, this floor is comprised of prefabricated reinforced concrete base plate (hereinafter to be referred as prefabricated panel), precast concrete shear key (hereinafter to be referred as shear key) and cast-in-situ steel reinforced concrete layer (hereinafter to be referred as in-situ layer), and the prefabricated panel of superimposed sheet floor adopts shear key to be connected with in-situ layer; The Cross section Design of shear key be I shape, circular ring type, hexagonal or other play the shape of shearing resistance effect, when making prefabricated panel, a part for shear key is embedded in prefabricated panel, another part exposes; When making in-situ layer, by concrete casting to the top of shear key or more than top.Like this, by shear key, prefabricated panel and in-situ layer are connected into whole floor, by shear key, bear shearing and the pulling force between prefabricated panel and in-situ layer.
2. shear key of the present invention adds vertical core muscle by plain concrete or plain concrete and makes, and upwards can extend in-situ layer end face, can extend prefabricated panel bottom surface downwards, therefore can reduce amount of reinforcement, reduces thickness of slab.
Accompanying drawing explanation
Fig. 1 is the precast concrete base plate plane figure after layout shear key of the present invention.
Fig. 2 is that Fig. 1 is along the sectional drawing of A-A direction.
Fig. 3 is that Fig. 1 is along the sectional drawing of B-B direction.
Fig. 4 is the schematic perspective view of shear key.
Fig. 5 is the superimposed sheet plan view forming after the precast concrete base plate upper concrete after arranging shear key.
Fig. 6 is that Fig. 5 is along the sectional drawing of C-C direction.
Fig. 7 is that Fig. 5 is along the sectional drawing of D-D direction.
Fig. 8 arranges the plan view after steel tube concrete soil pressure beam on the shear key of Fig. 1.
Fig. 9 is steel tube concrete soil pressure beam sectional drawing along its length.
In figure, 1. shear key (precast concrete shear key); 2. prefabricated panel; 3. in-situ layer; 4. set bolt; 5. press beam; 6. side steel form; 7. the thick steel form in bottom surface; 8. attached steel bushing.
The specific embodiment
As Figure 1-4, the present invention is provided with shear key 1 on prefabricated panel 2, the shearing that need to bear according to shear key 1 and pulling force, and shear key 1 is uniformly distributed on prefabricated panel 2.Wherein, the Cross section Design of shear key 1 is I shape (Fig. 2-4); Or shear key 1 can be circular ring type, hexagonal or other shapes.
As shown in Fig. 5-7, the concrete folding plate floor of band shear key of the present invention, mainly comprises in-situ layer setting up and down 3 and prefabricated panel 2, and prefabricated panel 2 is provided with shear key 1, and prefabricated panel 2 is connected with in-situ layer 3 by shear key 1, forms strong bonded structure.Shear key 1 one end is embedded in prefabricated panel, and the other end is embedded in in-situ layer.
As Figure 8-9, the prefabricated structure of the concrete folding plate floor of band shear key of the present invention, mainly comprise set bolt 4, press beam 5, side steel form 6, the thick steel form 7 in bottom surface, attached steel bushing 8 etc., concrete structure is as follows: on the thick steel form 7 in bottom surface, floor reinforcement, shear key 1 and side steel form 6 are set, side steel form 6 is arranged on the periphery of floor reinforcement and shear key 1, and shear key 1 is by pressing beam 5 fixing; Press beam 5 to be provided with attached steel bushing 8(Fig. 9), attached steel bushing 8 and the corresponding coupling of shear key 1, press beam 5 two ends to be connected and fixed by set bolt 4 and the thick steel form 7 in bottom surface.
In the present invention, press material and the shape of beam unrestricted.In the present embodiment, press beam can adopt steel tube concrete soil pressure beam, the firm connection by steel tube concrete soil pressure beam with the thick steel form 7 in bottom surface, can be preferably fixing shear key position.
As Figure 8-9, the construction method of the concrete folding plate floor of band shear key of the present invention is as follows:
(1) on the thick steel form 7 in bottom surface, arrange floor reinforcement;
(2) shearing that need to bear according to shear key and pulling force, be evenly arranged in shear key 1 on the thick steel form 7 in bottom surface, according to the size of prefabricated panel 2, in the periphery of floor reinforcement and shear key 1, side steel form 6 is set;
(3) with pressing beam 5 to be pressed in the end face of shear key 1, and make the summit portion of shear key 1 in attached steel bushing 8, to prevent when the fluid concrete, shear key 1 lateral sliding;
(4) will press the end of beam 5 to be fixed on the thick steel form 7 in bottom surface with set bolt 4, fluid concrete be to the thickness of prefabricated panel 2; When making prefabricated panel, a part for shear key is embedded in prefabricated panel, another part exposes;
(5) when concrete to be cast reaches the intensity needing, remove set bolt 4, remove and press beam 5, form the prefabricated panel 2 with shear key shown in Fig. 1;
(6) after the prefabricated panel with shear key is located in building site, then arrange reinforcing bar in the above, fluid concrete, forms in-situ layer 3, the final superimposed sheet forming with shearing resistance, as shown in Figure 5.
When making in-situ layer, by concrete casting to the top of shear key or more than top.That is to say, shear key can be selected to reveal top or not reveal top as required.
Embodiment result shows, the concrete folding plate floor of band shear key of the present invention, prefabricated structure and construction method, by shear key, precast concrete base plate and cast-in-situ concrete layer are connected into whole floor, by anti-shear concrete key, bear shearing and the pulling force between the two.This superimposed sheet floor can effectively reduce the amount of reinforcement that connects prefabricated reinforced concrete base plate and cast-in-situ concrete layer, reduces the thickness of slab of superimposed sheet floor.
Claims (9)
1. the prefabricated structure with the concrete folding plate floor of shear key, it is characterized in that: this concrete folding plate floor comprises in-situ layer setting up and down and prefabricated panel, on prefabricated panel, be provided with shear key, prefabricated panel is connected with in-situ layer by shear key, forms strong bonded structure;
This prefabricated structure comprises presses beam, side steel form, the thick steel form in bottom surface, floor reinforcement, shear key and side steel form are set on the thick steel form in bottom surface, side steel form is arranged on the periphery of floor reinforcement and shear key, and shear key is by pressing beam to be fixed on the thick steel form in bottom surface.
2. according to the prefabricated structure of the concrete folding plate floor with shear key claimed in claim 1, it is characterized in that: the shearing that need to bear according to shear key and pulling force, shear key is uniformly distributed on prefabricated panel.
3. according to the prefabricated structure of the concrete folding plate floor with shear key claimed in claim 1, it is characterized in that: the Cross section Design of shear key be I shape, circular ring type, hexagonal or other play the shape of shearing resistance effect.
4. according to the prefabricated structure of the concrete folding plate floor with shear key claimed in claim 1, it is characterized in that: shear key one end is embedded in prefabricated panel, and the other end is embedded in in-situ layer.
5. according to the prefabricated structure of the concrete folding plate floor with shear key claimed in claim 1, it is characterized in that: shear key is that plain concrete or plain concrete add vertical core muscle making, and extends upwardly to in-situ layer end face, extends prefabricated panel bottom surface downwards.
6. according to the prefabricated structure of the concrete folding plate floor with shear key claimed in claim 1, it is characterized in that: press beam to adopt steel tube concrete soil pressure beam, shaped steel to press beam or other forms to press beam, press beam to be provided with attached steel bushing, attached steel bushing coupling corresponding with shear key.
7. according to the prefabricated structure of the concrete folding plate floor with shear key claimed in claim 1, it is characterized in that: press beam two ends to be connected and fixed by the thick steel form of set bolt and bottom surface.
8. according to the construction method of the concrete folding plate floor with shear key one of claim 1-7 Suo Shu, it is characterized in that, comprise the steps:
(1) on the thick steel form in bottom surface, arrange floor reinforcement;
(2) shearing that need to bear according to shear key and pulling force, be evenly arranged in shear key on the thick steel form in bottom surface, according to the size of prefabricated panel, in the periphery of floor reinforcement and shear key, side steel form is set;
(3) with pressure beam, be pressed in the end face of shear key, and make the summit portion of shear key in attached steel bushing, to prevent when the fluid concrete, shear key lateral sliding;
(4) will press the end of beam to be fixed on the thick steel form in bottom surface with set bolt, fluid concrete be to the thickness of prefabricated panel; When making prefabricated panel, a part for shear key is embedded in prefabricated panel, another part exposes;
(5) when concrete to be cast reaches the intensity needing, remove set bolt, remove and press beam, form the prefabricated panel with shear key;
(6) after the prefabricated panel with shear key is located in building site, then arrange reinforcing bar in the above, fluid concrete, forms in-situ layer, the final superimposed sheet forming with shearing resistance.
9. according to the construction method of the concrete folding plate floor with shear key claimed in claim 8, it is characterized in that, when making in-situ layer, by concrete casting to the top of shear key or more than top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210279952.2A CN102839773B (en) | 2012-08-08 | 2012-08-08 | Concrete composite slab floorslab with shear key and prefabricated construction and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210279952.2A CN102839773B (en) | 2012-08-08 | 2012-08-08 | Concrete composite slab floorslab with shear key and prefabricated construction and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102839773A CN102839773A (en) | 2012-12-26 |
| CN102839773B true CN102839773B (en) | 2014-09-24 |
Family
ID=47367473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210279952.2A Expired - Fee Related CN102839773B (en) | 2012-08-08 | 2012-08-08 | Concrete composite slab floorslab with shear key and prefabricated construction and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102839773B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107700728A (en) * | 2017-09-30 | 2018-02-16 | 沈阳建筑大学 | Easy connect band shear key reinforced concrete slab structure and connection method |
| CN108018972B (en) * | 2017-12-01 | 2024-09-13 | 沈阳建筑大学 | Full prefabricated floor slab and composite floor slab combined structure, manufacturing and assembling method |
| CN107972173A (en) * | 2017-12-01 | 2018-05-01 | 沈阳建筑大学 | Regeneration concrete precast floor slab structure and production method |
| PT3486392T (en) | 2018-03-12 | 2021-11-17 | Elastic Potential S L | Prefabricated floor element, structure comprising prefabricated floor elements and installation for obtaining the prefabricated floor element |
| CN109083320A (en) * | 2018-09-26 | 2018-12-25 | 重庆普珞沃建筑科技有限公司 | Combine prefabricated panel and laminated floor slab structure and laminated floor slab construction method |
| CN112282163A (en) * | 2019-07-25 | 2021-01-29 | 沈阳建筑大学 | Heat-preservation integrated composite floor slab and preparation method thereof |
| CN111980256B (en) * | 2020-08-17 | 2021-08-24 | 浙江大学建筑设计研究院有限公司 | Self-insulation composite floor slab and construction method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587575A (en) * | 2004-06-30 | 2005-03-02 | 清华大学 | Steel-concrete folding plate combined beam |
| US7617647B2 (en) * | 2004-10-26 | 2009-11-17 | Tilediy, Llc | Underlayment for tile surface |
| CN1944891B (en) * | 2006-11-01 | 2011-07-20 | 邱则有 | Steel concrete prefabricated plate with rib |
| CN101200927A (en) * | 2006-12-08 | 2008-06-18 | 邱则有 | Laminated slab |
| CN101245626A (en) * | 2007-02-16 | 2008-08-20 | 邱则有 | Prefabricated slab for lamination |
| CN201972287U (en) * | 2011-01-06 | 2011-09-14 | 哈尔滨工程大学 | Ultrathin bottom plate with superhigh strength for lamination board |
| CN202787600U (en) * | 2012-08-08 | 2013-03-13 | 沈阳建筑大学 | Concrete laminated slab floorslab with anti-shearing key and prefabricated structure thereof |
-
2012
- 2012-08-08 CN CN201210279952.2A patent/CN102839773B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102839773A (en) | 2012-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102839773B (en) | Concrete composite slab floorslab with shear key and prefabricated construction and construction method | |
| CN102635197B (en) | A kind of precast reinforced concrete structure with groove and preparation method thereof | |
| CN208473116U (en) | A kind of partial precast assembly steel reinforced concrete holes in soffit beam | |
| CN102720272B (en) | Embedded column type prefabricated part connection node and manufacturing method thereof | |
| CN104264786A (en) | Steel bar connection mode of prefabricated concrete member and application thereof | |
| CN202865991U (en) | Assembled monolithic shear wall building structure | |
| CN102808450A (en) | Assembled monolithic shear wall building structure and construction method thereof | |
| CN204059601U (en) | Steel bar connecting structure of prefabricated concrete member | |
| CN109518858B (en) | Assembled beam plate connecting structure and construction method thereof | |
| CN107476482A (en) | A kind of prefabricated panel with light gauge cold-formed steel shape rib, superimposed sheet and preparation method thereof | |
| CN108086488B (en) | Assembled frame shear structure wall staggered connection structure and assembling method | |
| CN103572840A (en) | Notch-key type prefabricated member connection node and connection method | |
| CN110344530B (en) | Local laminated slab connecting joint and construction method thereof | |
| CN203452228U (en) | Frame-shear wall architectural structure | |
| CN111155691A (en) | Close-joint seam type concrete/ECC combined composite slab and construction method thereof | |
| CN106760036B (en) | A kind of prefabricated steel-combined concrete shear wall | |
| CN105298040A (en) | Light assembly type stairway and construction method thereof | |
| CN102352668B (en) | Prefabricated reinforced concrete assembled column and its manufacturing method | |
| CN103711232B (en) | L-shaped frame component and lightweight concrete wall prefabricated type shear wall and connection construction method | |
| CN103437493B (en) | Connecting node of prefabricated reinforced concrete beam and construction method of connecting node | |
| CN107313507B (en) | Construction method for node structure of fabricated concrete frame overhead core column | |
| CN210067175U (en) | Bidirectional composite floor slab | |
| CN209556195U (en) | Fabricated Beam-Slab connection structure | |
| CN102864855A (en) | T-shaped precast concrete wall connection | |
| KR100757960B1 (en) | Two-way hollow core slab and construction method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20170808 |