CN104727475B - The improved concrete folding plate floor construction with shear key and method of attachment - Google Patents
The improved concrete folding plate floor construction with shear key and method of attachment Download PDFInfo
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- CN104727475B CN104727475B CN201510102832.9A CN201510102832A CN104727475B CN 104727475 B CN104727475 B CN 104727475B CN 201510102832 A CN201510102832 A CN 201510102832A CN 104727475 B CN104727475 B CN 104727475B
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Abstract
The present invention relates to assembly concrete building field, specially a kind of improved concrete folding plate floor construction with shear key and method of attachment, this kind of floor of production can be used as the floor that applies in assembly concrete building.Former superimposed sheet floor includes 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 present invention makes two sides of former prefabricated panel into inclined-plane, increases its contact area with in-situ layer；Matsurface is made in four sides of prefabricated panel, increases its friction with in-situ layer；Overlap joint steel bar groove is set up in prefabricated panel both sides and places overlap joint reinforcing bar, realize the equivalent transmission of reinforcement tension.Superimposed sheet floor construction is connected to beam by the threaded steel pole in pre-buried termination in precast beam with the use of fixation steel plate and hold-doun nut by the present invention simultaneously.Above-mentioned measure effectively achieves the firm connection between superimposed sheet floor construction and its with beam.
Description
Technical field
The present invention relates to assembly concrete building field, specially a kind of improved concrete folding plate with shear key
Floor construction and method of attachment, the concrete folding plate floor of production can be used as the floor that applies in assembly concrete building.
Background technology
At present, in practical set formula concrete construction, what floor was commonly used is that self-bearing type steel bar girder concrete is folded
Plywood, this kind of superimposed sheet have the shortcomings that floor is thicker, construction costs is high.For solving this problem, Chinese invention patent (patent
Numbers 201210279952.2, publication number CN102839773A) disclose a kind of " the concrete folding plate floor with shear key, pre-
System construction and construction method ", but be not directed between the concrete folding plate floor with shear key and its how to be connected with beam.Mesh
Before, connecting method for reinforcing bars between superimposed sheet floor construction, it is difficult to realize that reinforcement moment of flexure produces the equivalent transmission of tension,
Superimposed sheet floor construction and the connection of beam, without anchor measure between prefabricated panel and beam.For this reason, it is necessary to the shearing resistance of disclosed band
The concrete folding plate floor of key is suitably modified, and makes it easier to realize the connection between its own, while being more necessary to carry
Go out the firm method of attachment between its own and its with beam, to meet the needs of actual engineering design construction, which is advanced in assembling
Application in formula concrete construction.
Content of the invention
It is an object of the invention to provide a kind of improved concrete folding plate floor construction with shear key and connection side
Method, is realized between the improved concrete folding plate floor construction with shear key and its is firmly connected with beam, meet Practical Project
Design and construction need.
The technical scheme is that：
A kind of improved concrete folding plate floor construction with shear key, former concrete folding plate floor include dividing into
The in-situ layer that puts and precast concrete base plate abbreviation prefabricated panel, are provided with shear key on prefabricated panel, and prefabricated panel is by anti-
Cut key to be connected with in-situ layer, form strong bonded structure, by the prefabricated panel of the concrete folding plate floor of original tape shear key
Make the inclined-plane that there is angle of inclination with bottom surface in two sides；In the both sides of prefabricated panel, overlap joint steel bar groove is set；By prefabricated bottom
Make rough surface in four sides of plate；
The both sides of prefabricated panel arrange overlap joint steel bar groove to be used for placing overlap joint reinforcing bar, and the depth for overlapping steel bar groove is close to plate bottom
Longitudinal reinforcement, is made overlap joint reinforcing bar effectively be transmitted the tension of moment of flexure generation due to the natural axis away from floor, overlaps steel bar groove
Length more than plate bottom horizontal reinforcing bar calculating anchorage length, overlap steel bar groove position in the surface of plate bottom horizontal reinforcing bar.
The described improved concrete folding plate floor construction with shear key, four sides pass through boundary when pouring,
Face agent is processed makes four side surfaces coarse.
The method of attachment of the described improved concrete folding plate floor construction with shear key, improved with shear key
Method of attachment between concrete folding plate floor is to dock two pieces of prefabricated panel adjacent bevel surfaces of arrangement shear key, then
Arrangement overlap joint reinforcing bar at the overlap joint steel bar groove being connected, overlap the diameter of reinforcing bar according to the plate bottom horizontal reinforcing bar of prefabricated panel with
The equal calculating of moment of flexure that overlap joint reinforcing bar undertakes determines, finally pours in-situ layer on prefabricated panel, complete the system of superimposed sheet floor
Make and connect.
The method of attachment of the described improved concrete folding plate floor construction with shear key, improved with shear key
Concrete folding plate floor and the connection of side bar, the end of the prefabricated panel of arrangement shear key are taken on side bar, and make its end
Portion is connected with the side for being embedded in the threaded steel pole in pre-buried termination in the beam in side bar in advance, the threaded steel in pre-buried termination in beam
Fixation steel plate is installed in bar upper end, and hold-doun nut is tightened against on the threaded steel pole in pre-buried termination in beam, make fixation steel plate with
Prefabricated panel contact is closely；The negative bending moment rib of plate at side bar is arranged at plate end, one end of the negative bending moment rib of plate wherein at side bar
Support on side bar, the other end is supported on prefabricated panel；Casting concrete, completes the improved concrete folding plate with shear key
Floor and the connection of side bar.
The method of attachment of the described improved concrete folding plate floor construction with shear key, improved with shear key
Concrete folding plate floor and the connection of central sill, the end of the prefabricated panel of arrangement shear key is taken on central sill；With central sill
Overlap joint reinforcing bar is placed in the overlap joint steel bar groove of adjacent prefabricated panel, places the central sill perpendicular to prefabricated panel on prefabricated panel
The negative bending moment rib of place's plate, the two ends of negative bending moment rib are supported on two pieces of prefabricated panels；The negative bending moment rib of plate and shearing resistance at the central sill
When key position conflicts, according to the negative bending moment rib that practical situation encrypts plate at central sill so as to avoid shear key；Casting concrete, complete
Connection into the improved concrete folding plate floor with shear key and central sill.
The invention has the characteristics that and beneficial effect：
1st, the improved concrete folding plate floor construction with shear key of the present invention, which is folded with the concrete of original tape shear key
Plywood floor is compared：Two sides of the prefabricated panel of the concrete folding plate floor of original tape shear key are made into have with bottom surface
The inclined-plane at certain angle of inclination, increased the contact area of in-situ layer and prefabricated panel；In the both sides of prefabricated panel, overlap joint is set
Steel bar groove, makes overlap joint reinforcing bar more effectively transmit due to the natural axis away from superimposed sheet while being easy to and placing overlap joint reinforcing bar
The tension that moment of flexure is produced；Rough surface is made in four sides of prefabricated panel, increased prefabricated panel and in-situ layer
Friction.
2nd, the method for attachment of the improved concrete folding plate floor with shear key of the present invention, by arranging in prefabricated panel
Bar splicing groove in place overlap joint reinforcing bar, it is achieved that superimposed sheet structure reinforcement moment of flexure produce tension equivalent transmission；
By the threaded steel pole in pre-buried termination in beam and using fixation steel plate and hold-doun nut, it is achieved that prefabricated panel plate end is on side
Fixation on beam；By arranging overlap joint reinforcing bar in overlap joint steel bar groove and arranging the negative bending moment rib of plate at central sill, it is achieved that central sill
Both sides superimposed sheet moment of flexure produces the equivalent transmission of tension.
So as to by above-mentioned measure, effectively increase the degree that is connected firmly of prefabricated panel and in-situ layer, to greatest extent
On facilitate the connection of superimposed sheet, fully ensured that between the improved concrete folding plate floor construction with shear key and its with
The reliability of beam connection, meets actual requirement of engineering.
Description of the drawings
Fig. 1 is the arrangement shear key of the present invention, the prefabricated panel plane graph of overlap joint steel bar groove.
Fig. 2 is profiles of the Fig. 1 along A-A directions.
Fig. 3 is profiles of the Fig. 1 along B-B directions.
Fig. 4 is profiles of the Fig. 1 along C-C directions.
Fig. 5 is profiles of the Fig. 1 along D-D directions.
Fig. 6 is the connection plane graph that arranges between shear key, the prefabricated panel of overlap joint steel bar groove.
Fig. 7 is profiles of the Fig. 6 along E-E directions.
Fig. 8 is the superimposed sheet floor level figure formed after Fig. 6 upper concrete.
Fig. 9 is profiles of the Fig. 8 along F-F directions.
Figure 10 is the connection plane graph for arranging shear key, the prefabricated panel of overlap joint steel bar groove and side bar.
Figure 11 is profiles of the Figure 10 along G-G directions.
Figure 12 is profiles of the Figure 10 along H-H directions.
Figure 13 is the negative bending moment rib schematic diagram of plate at side bar.
Figure 14 is the threaded steel pole in pre-buried termination in beam.
Figure 15 is the superimposed sheet floor level figure formed after Figure 10 upper concrete.
Figure 16 is profiles of the Figure 15 along J-J directions.
Figure 17 is the connection plane graph for arranging shear key, the prefabricated panel of overlap joint steel bar groove and central sill.
Figure 18 is profiles of the Figure 17 along K-K directions.
Figure 19 is the superimposed sheet floor level figure formed after Figure 17 upper concrete.
Figure 20 is profiles of the Figure 19 along L-L directions.
Figure 21 is the negative bending moment rib schematic diagram of plate at central sill.
In figure, 1. prefabricated panel；2. precast concrete shear key；3. steel bar groove is overlapped；4. inclined-plane；5. plate bottom longitudinal direction steel
Muscle；6. plate bottom horizontal reinforcing bar；7. reinforcing bar is overlapped；8. in-situ layer；9. side bar；10. at side bar plate negative bending moment rib；11. fix spiral shell
Cap；12. fixation steel plates；The threaded steel pole in pre-buried termination in 13. beams；14. central sills；The negative bending moment rib of plate at 15. central sills；16.
The improved concrete folding plate floor with shear key.
Specific embodiment
Former concrete folding plate floor includes in-situ layer setting up and down and prefabricated panel, is provided with shearing resistance on prefabricated panel
Key, prefabricated panel are connected with in-situ layer by shear key, are formed strong bonded structure, but are not directed to the concrete with shear key and fold
How to be connected between plywood floor and its with beam.The improved concrete folding plate floor construction with shear key of the present invention and connection
Method, its design philosophy are as follows：
(1) two sides of the prefabricated panel of the concrete folding plate floor of original tape shear key are made into have one with bottom surface
The inclined-plane of constant inclination rake angle, arranges overlap joint steel bar groove in the both sides of prefabricated panel, and four sides of prefabricated panel are made into coarse
Surface.
(2) two sides of prefabricated panel have certain angle of inclination with plate bottom, can increase prefabricated panel side and show
The contact area of layer is poured, makes the connection between prefabricated panel and in-situ layer, prefabricated panel and prefabricated panel more firm.
(3) prefabricated panel both sides arrange overlap joint steel bar groove can be used for place overlap joint reinforcing bar, overlap steel bar groove depth with
It is close to plate bottom longitudinal reinforcement as far as possible to be advisable, so that overlap joint reinforcing bar more effectively transmits moment of flexure due to the natural axis away from superimposed sheet
The tension of generation, overlaps the calculating anchorage length of the length more than plate bottom horizontal reinforcing bar of steel bar groove, overlaps the position of steel bar groove
Should be in the surface of plate bottom horizontal reinforcing bar.
(4) four sides are processed by interfacial agents when pouring, and make four side surfaces coarse, to increase prefabricated bottom
Plate side and the friction of in-situ layer, make prefabricated panel be connected with in-situ layer more firm.
(5) connection between the improved concrete folding plate floor with shear key, its are pre- by two pieces of arrangement shear key
Base plate adjacent bevel surfaces docking processed, then arranges overlap joint reinforcing bar in the overlap joint steel bar groove being connected, finally pours on prefabricated panel
In-situ layer is built, the connection between the making of superimposed sheet floor and superimposed sheet floor is completed.
(6) connection between the improved concrete folding plate floor with shear key, two pieces of its arrangement shear key are prefabricated
The inclined-plane that connects of base plate is rough surface, is conducive between prefabricated panel and its is formed with in-situ layer being firmly connected.
(7) connection between the improved concrete folding plate floor with shear key, in the overlap joint steel bar groove being connected
Arrangement overlap joint reinforcing bar, the diameter for overlapping reinforcing bar can be according to the calculating equal with the moment of flexure that overlap joint reinforcing bar undertakes of plate bottom horizontal reinforcing bar really
Fixed.
(8) connection of the improved concrete folding plate floor with shear key and side bar：Which is prefabricated by arrangement shear key
The end of base plate is taken on side bar, and makes its end and the side for being embedded in the threaded steel pole in pre-buried termination in the beam in side bar in advance
Connect；In beam, fixation steel plate is installed in the threaded steel pole upper end in pre-buried termination, and hold-doun nut is tightened against pre-buried end in beam
On threaded steel pole, fixation steel plate is made to contact closely with prefabricated panel；The negative bending moment rib of plate at side bar is arranged at plate end, its
At middle side bar, one end of the negative bending moment rib of plate is supported on side bar, and the other end is supported on prefabricated panel；Casting concrete, completes
The improved concrete folding plate floor with shear key and the connection of side bar.
(9) the improved concrete folding plate floor with shear key and the connection of side bar, arrange the prefabricated panel of shear key
End by being embedded in the threaded steel pole in pre-buried termination in the beam in side bar, fixation steel plate and hold-doun nut in advance, tight with side bar
Close connection.
(10) the improved concrete folding plate floor with shear key and the connection of side bar, arrange plate at side bar at plate end
At negative bending moment rib, wherein side bar, one end of the negative bending moment rib of plate is supported on side bar, and the other end is supported on prefabricated panel.
(11) connection of the improved concrete folding plate floor with shear key and central sill：Prefabricated bottom by arrangement shear key
Take on central sill the end of plate；Overlap joint reinforcing bar is placed in the overlap joint steel bar groove of the prefabricated panel adjacent with central sill, at prefabricated bottom
The negative bending moment rib perpendicular to plate at the central sill of prefabricated panel is placed on plate；The negative bending moment rib of plate is rushed with shearing resistance key position at the central sill
When prominent, according to the negative bending moment rib that practical situation encrypts plate at central sill so as to shear key can be avoided；Casting concrete, completes to change
The connection of the concrete folding plate floor with shear key and central sill that enter.
(12) the improved concrete folding plate floor with shear key and the connection of central sill, arrange the prefabricated panel of shear key
End take on central sill.
(13) connection of the improved concrete folding plate floor with shear key and central sill, at the prefabricated bottom adjacent with central sill
Overlap joint reinforcing bar is placed in the overlap joint steel bar groove of plate, places the hogging moment perpendicular to plate at the central sill of prefabricated panel on prefabricated panel
Muscle, realizes the transmission of superimposed sheet hogging moment.
(14) connection of the improved concrete folding plate floor with shear key and central sill, the negative bending moment rib of plate at the central sill
When conflicting with shearing resistance key position, according to the negative bending moment rib that practical situation encrypts plate at central sill so as to shearing resistance can be avoided.
Below, with reference to the accompanying drawings the present invention is further elaborated on：
As Figure 1-Figure 5, the present invention is provided with precast concrete shear key 2 on prefabricated panel 1, according to precast concrete
Shear key 2 needs shearing and the pulling force for bearing, precast concrete shear key 2 to be uniformly distributed on prefabricated panel 1, prefabricated panel 1
Side and bottom surface be inclined-plane 4 with certain angle of inclination.Overlap joint steel bar groove 3 is provided with the both sides of 1 top surface of prefabricated panel, in advance
The plate bottom of base plate processed 1 is provided with plate bottom longitudinal reinforcement 5 and plate bottom horizontal reinforcing bar 6.
As shown in Fig. 6-Fig. 9, the improved connection between shear key prefabricated panel 1, its attachment structure and method of attachment
As follows：
(1) two pieces of prefabricated panels, 1 adjacent bevel surfaces 4 of arrangement precast concrete shear key 2 are docked (see Fig. 6-Fig. 7)；
(2) overlap joint reinforcing bar 7 is arranged at the overlap joint steel bar groove 3 being connected, and the diameter for overlapping reinforcing bar 7 can be according to prefabricated panel
Calculate equal with the moment of flexure that overlap joint reinforcing bar 7 undertakes of 1 plate bottom horizontal reinforcing bar 6 determines；
(3) after the completion of connecting, in-situ layer 8 is poured on prefabricated panel 1, two pieces of prefabricated panels 1 are by overlapping reinforcing bar 7 and phase
The in-situ layer 8 for connecing the cast-in-place concrete at inclined-plane 4 and being connected with prefabricated panel 1 by precast concrete shear key 2 connects into jail
Fixing structure, so as to complete the improved concrete folding plate floor 16 with shear key making and its between connection (see Fig. 8-
Fig. 9).
As shown in Figure 10-Figure 16, the improved connection with shear key prefabricated panel 1 with side bar 9, its attachment structure and connection
Method is as follows：
(1) end of the prefabricated panel 1 of arrangement precast concrete shear key 2 is taken on side bar 9, and makes prefabricated panel 1
End connect (see Figure 10-Figure 11) with the side of the threaded steel pole 13 in pre-buried termination in the beam being embedded in side bar 9 in advance；
(2) in beam, fixation steel plate 12 is installed in threaded 13 upper end of steel pole in pre-buried termination, and hold-doun nut 11 is tightened
In beam on the threaded steel pole 13 in pre-buried termination, fixation steel plate 12 is made to contact closely (see Figure 10-Figure 14) with prefabricated panel 1；
(3) negative bending moment rib 10 of plate at side bar is arranged at the plate end of prefabricated panel 1, wherein：The negative bending moment rib of plate at side bar
10 are horizontal bar and its perpendicular muscle composition at two ends, and the perpendicular muscle of one end is longer than the perpendicular muscle of the other end；The negative bending moment rib 10 of plate at side bar
One end is supported on side bar 9, and at side bar, the other end of the negative bending moment rib 10 of plate is supported on prefabricated panel 1 (see Figure 10-Figure 14)；
(4) on prefabricated panel 1 and side bar 9, casting concrete forms in-situ layer 8, completes the improved coagulation with shear key
The making of native superimposed sheet floor 16 and its connection (see Figure 15-Figure 16) with side bar 9.
As shown in Figure 17-Figure 21, the improved connection with shear key prefabricated panel 1 with central sill 14, its attachment structure and company
Connect method as follows：
(1) (see Figure 17-Figure 18) on central sill 14 is taken in the end of the prefabricated panel 1 of arrangement precast concrete shear key 2；
(2) overlap joint reinforcing bar 7 is placed in the overlap joint steel bar groove 3 of the prefabricated panel 1 adjacent with central sill 14, in prefabricated panel 1
The upper negative bending moment rib 15 that places perpendicular to plate at the central sill of prefabricated panel 1, at central sill, the negative bending moment rib 15 of plate is horizontal bar and its two
The perpendicular muscle composition at end, the perpendicular muscle length at two ends are identical；The negative bending moment rib 15 of plate and 2 position of precast concrete shear key at the central sill
During conflict, the negative bending moment rib 15 of central sill at plate can be encrypted according to practical situation so as to can avoid precast concrete shear key 2
(see Figure 17-Figure 18, Figure 21)；
(3) on prefabricated panel 1 and central sill 14, casting concrete forms in-situ layer 8, completes improved mixed with shear key
The making and and its connection (see Figure 19-Figure 20) with central sill 14 of solidifying soil superimposed sheet floor 16.
Embodiment result shows, the improved concrete folding plate floor construction with shear key of the present invention and method of attachment,
Prefabricated panel and concrete cast-in-situ layer are connected by integral floor by shear key, is undertaken therebetween by anti-shear concrete key
Shearing and pulling force, the tension produced by the equivalent transmission reinforcement moment of flexure of the overlap joint reinforcing bar arranged in overlap joint steel bar groove；Logical
Cross the threaded steel pole in pre-buried termination in beam and using fixation steel plate and hold-doun nut, it is achieved that prefabricated panel plate end is in side bar
On fixation；By arranging overlap joint reinforcing bar in overlap joint steel bar groove and arranging the negative bending moment rib of plate at central sill, it is achieved that central sill two
Side superimposed sheet moment of flexure produces the transmission of tension；The contact area that junction in-situ layer and prefabricated panel are increased by inclined-plane；
Rough surface is made by four sides by plate, the friction of prefabricated panel and in-situ layer is increased.Above-mentioned measure is fully ensured that
It is reliably connected between the improved concrete folding plate floor with shear key and its with side bar and central sill, meets Practical Project
Need.
Claims (5)
1. a kind of improved concrete folding plate floor construction with shear key, former concrete folding plate floor includes setting up and down
In-situ layer and precast concrete base plate abbreviation prefabricated panel, be provided with shear key on prefabricated panel, prefabricated panel passes through shearing resistance
Key is connected with in-situ layer, is formed strong bonded structure, be it is characterized in that：By the prefabricated of the concrete folding plate floor of original tape shear key
Make the inclined-plane that there is angle of inclination with bottom surface in two sides of base plate；In the both sides of prefabricated panel, overlap joint steel bar groove is set；Will
Make rough surface in four sides of prefabricated panel；
The both sides of prefabricated panel arrange overlap joint steel bar groove to be used for placing overlap joint reinforcing bar, and the depth for overlapping steel bar groove is close to plate bottom longitudinal direction
Reinforcing bar, is made overlap joint reinforcing bar effectively be transmitted the tension of moment of flexure generation due to the natural axis away from floor, overlaps the length of steel bar groove
Calculating anchorage length of the degree more than plate bottom horizontal reinforcing bar, overlaps the position of steel bar groove in the surface of plate bottom horizontal reinforcing bar.
2., according to the improved concrete folding plate floor construction with shear key described in claim 1, it is characterized in that：Four sides
Face makes four side surfaces coarse by interfacial agents process when pouring.
3., according to the method for attachment of the improved concrete folding plate floor construction with shear key described in claim 1, which is special
Levying is：Method of attachment between the improved concrete folding plate floor with shear key is, prefabricated by two pieces of arrangement shear key
Base plate adjacent bevel surfaces are docked, and then arrange overlap joint reinforcing bar at the overlap joint steel bar groove being connected, and overlap the diameter of reinforcing bar according to pre-
Calculate equal with the moment of flexure that overlap joint reinforcing bar undertakes of the plate bottom horizontal reinforcing bar of base plate processed determines, finally pours on prefabricated panel cast-in-place
Layer, completes the making and connection of superimposed sheet floor.
4., according to the method for attachment of the improved concrete folding plate floor construction with shear key described in claim 1, which is special
Levying is：The improved concrete folding plate floor with shear key and the connection of side bar, will arrange the end of the prefabricated panel of shear key
Portion is taken on side bar, and is made its end and connected with the side for being embedded in the threaded steel pole in pre-buried termination in the beam in side bar in advance,
In beam, fixation steel plate is installed in the threaded steel pole upper end in pre-buried termination, and it is threaded that hold-doun nut is tightened against pre-buried termination in beam
Steel pole on, fixation steel plate is contacted closely with prefabricated panel；The negative bending moment rib of plate at side bar is arranged at plate end, wherein at side bar
One end of the negative bending moment rib of plate is supported on side bar, and the other end is supported on prefabricated panel；Casting concrete, completes improved band
The concrete folding plate floor of shear key and the connection of side bar.
5., according to the method for attachment of the improved concrete folding plate floor construction with shear key described in claim 1, which is special
Levying is：The improved concrete folding plate floor with shear key and the connection of central sill, will arrange the end of the prefabricated panel of shear key
Take on central sill in portion；Overlap joint reinforcing bar is placed in the overlap joint steel bar groove of the prefabricated panel adjacent with central sill, is put on prefabricated panel
The negative bending moment rib perpendicular to plate at the central sill of prefabricated panel is put, the two ends of negative bending moment rib are supported on two pieces of prefabricated panels；Central
When at beam, the negative bending moment rib of plate is conflicted with shearing resistance key position, according to the negative bending moment rib that practical situation encrypts plate at central sill so as to keep away
Open shear key；Casting concrete, completes the connection of the improved concrete folding plate floor with shear key and central sill.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510102832.9A CN104727475B (en) | 2015-03-09 | 2015-03-09 | The improved concrete folding plate floor construction with shear key and method of attachment |
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|---|---|---|---|
| CN201510102832.9A CN104727475B (en) | 2015-03-09 | 2015-03-09 | The improved concrete folding plate floor construction with shear key and method of attachment |
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| CA2648822C (en) * | 2008-10-20 | 2014-12-09 | Arthur George Paetkau | Prefabricated building panels and structures, building, methods and systems relating to same |
| CN103334525A (en) * | 2013-06-17 | 2013-10-02 | 南京长江都市建筑设计股份有限公司 | One-way prestressed laminated slab structure and construction method thereof |
| CN103469949A (en) * | 2013-10-07 | 2013-12-25 | 王睿敏 | Prefabricated composite floor slab and floor slab layer as well as construction method |
| CN103981987A (en) * | 2014-05-30 | 2014-08-13 | 王睿敏 | Hollow composite floor slab and construction method thereof |
| CN204590362U (en) * | 2015-03-09 | 2015-08-26 | 沈阳建筑大学 | The concrete folding plate floor of the band shear key improved |
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2015
- 2015-03-09 CN CN201510102832.9A patent/CN104727475B/en not_active Expired - Fee Related
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