CN109853806A - It overlaps concrete steel ladder mouth and splices two-way floor - Google Patents
It overlaps concrete steel ladder mouth and splices two-way floor Download PDFInfo
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- CN109853806A CN109853806A CN201910067383.7A CN201910067383A CN109853806A CN 109853806 A CN109853806 A CN 109853806A CN 201910067383 A CN201910067383 A CN 201910067383A CN 109853806 A CN109853806 A CN 109853806A
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Abstract
The invention discloses a kind of overlapping concrete steel ladder mouths to splice two-way floor, splices the precast floor slab assembly of two-way floor by overlapping concrete steel ladder mouth and cast-in-place concrete forms.Longitudinal both ends of precast concrete bottom are overlapped on respectively at the top of lower part bar shaped concrete component；Opposite preformed layer board bottom transverse steel mutually overlaps one by one；Precast concrete bottom laterally closes up one by one to be close to, and the sideways, outwardly extending connection reinforcing bar of preformed layer board bottom and laterally-graded connector is arranged in lateral ends, keeps the splicing of bidirectional stress simple and easy.Superimposed sheet bidirectional stress, live monoblock type assembling can be realized without special operation in the present invention, and simple production process is conducive to mechanization, automation, intelligent production.It is convenient transportation, at low cost.It is not only with good economic efficiency and have superior stress performance.And site operation convenience, short time limit, good economical benefit, avoid the complex operations in work progress, cost are greatly reduced.
Description
Technical field
The invention belongs to technical field of buildings, splice two-way floor more particularly to a kind of overlapping concrete steel ladder mouth.
Background technique
A kind of preferable structure type that laminated floor slab is prefabricated and cast-in-place concrete combines.Precast prestressed thin plate (thickness 5
~8 centimetres) with top cast-in-place concrete layer be combined into an entirety, work together.The prestressing force main reinforcement of thin plate is overlapping
The main reinforcement of floor, top concrete cast-in-situ layer only configure negative reinforcement and distributing bar.Prestressed thin slab is used as cast-in-place coagulation
The bed die of soil layer, it is not necessary to be in-situ layer support shuttering.Thin plate bottom surface is smooth, and after processing, ceiling can be smeared no longer plate stitch
Ash.This laminated floor slab has globality, the rigidity of cast-in-situ floor are big, crack resistance is good, do not increase reinforcing bar consumption, save template etc.
Advantage.Since cast-in-situ floor is not required to formwork, there are also bulk precast concrete partition plates to lift simultaneously in the structure construction stage, from
And it can be inserted into fitting-out work in advance, shorten the duration of entire engineering.
Floor span can be widely used in hotel, office building, school, house, hospital, warehouse, parking lot, more within 8 meters
The various building engineerings such as layer industrial premises.Prestressed thin slab is different by the construction of superposed surfaces, can be divided into three classes: 1. superposed surfaces
The shear stress of receiving is smaller, and superposed surfaces do not set shear reinforcement, but requires coarse concrete upper surface, stroke hair or stay some combinations
Hole.2. the shear stress that superposed surfaces are born is larger, thin sheet surface will also add shear reinforcement in addition to requiring coarse stroke of hair, and reinforcing bar is straight
Diameter and spacing are computed determination.The shape of reinforcing bar has waveform, spiral shape and spot welding mesh sheet to be bent into triangular section.3. prefabricated
Thin plate upper surface is equipped with steel truss, to reinforce rigidity when sheet construction, reduces the support that thin plate is set up below.
Reinforced concrete slab is a part of iterative structure, is a kind of prefabricated and cast-in-place structure type combined.It is folded
In the construction process, first in basis rest prefabricated panel, it plays template when pouring upper layer concrete to plywood, and then two
Part concrete forms entirety and carrys out bearing load.Laminated floor slab integrates cast-in-place and prefabricated advantage, is that one kind has development very much
The floor form of future.
1) from stress, for full prefabricated slab, the overall stiffness and anti-seismic performance of structure can be improved,
When configuring same presstressed reinforcing steel, for the load action tension edge of total cross-section, established on prefabricated section
Effective prestress is larger, to improve the cracking resistance of structure.Under the premise of same cracking resistance, then pre- answer can be saved
The dosage of power muscle.
2) from manufacture craft, the main part of the force of laminated floor slab is manufactured in factory, and mechanization degree is high, is easy to protect
Quality is demonstrate,proved, it is fast using continuous productive process speed of production, and can make in advance, it does not account for the duration, and the template of pre-erection can
To reuse.Pouring concrete does template with prefabricated panel afterwards, and more full cast-in-situ floor can reduce the workload of formwork, and reduction is applied
Work situ wet operation improves construction site condition, improves construction efficiency, especially under conditions of high altitude operation or difficult formwork
Effect is even more obvious, and prefabrication is easily achieved the production of more complex section form, for developing component load-bearing potentiality,
Reducing dead load has apparent advantage.Large span superimposed sheet also is compliant with the developing direction of Modern Residence superstructure simultaneously.
Long-term scientific experiment and engineering practice result shows to obtain in concrete structure engineering using laminated floor slab
Fairly obvious benefit, when using high strength cast iron, amount of reinforcement is substantially reduced.When using prefabricated section on an empty stomach, it can also save
Concrete amount is saved, the duration also shortens accordingly.
But the two-way slab of concrete folding plate always exists some problems and is not solved effectively, to handle it is various not
With the reinforcing bar of form, it is difficult to realize mechanization, the production of intellectually and automatically.Two-way slab difficulty of processing is big, at high cost, often
It is difficult to realize and uneconomical.Therefore need to solve these technical problems, to fully demonstrate the excellent of precast concrete assembly building
Gesture.Reinforced concrete slab section is made of prefabricated and cast-in-place two parts, their common working performances depend on new and old overlapping
The shear behavior in face, therefore shear bond strength design is very important part, it is seen that reinforced concrete slab is to construction technology
Content also has a higher requirement, especially in construction quality management aspect to using unit to propose tightened up requirement.
Summary of the invention
The object of the present invention is to provide a kind of overlapping concrete steel ladder mouths to splice two-way floor, which is not necessarily to special behaviour
Superimposed sheet bidirectional stress, live monoblock type assembling, simple production process can be realized.
It is of the existing technology in order to solve the problems, such as, the technical solution adopted by the present invention is that:
It overlaps concrete steel ladder mouth and splices two-way floor, it is assembled by the two-way precast floor slab of overlapping concrete reinforcement ring and cast-in-place mixed
Solidifying soil forms, mainly by precast concrete bottom, cast-in-place overlapping layers, laterally-graded connector, preformed layer board bottom longitudinal reinforcement, pre-
The sideways, outwardly extending connection reinforcing bar of reinforcing bar, preformed layer board bottom, cast-in-place laminate top longitudinal reinforcement, cast-in-place laminate top in preparative layer board bottom transverse plate
Transverse steel, lower part bar shaped concrete component composition,
Longitudinal both ends of precast concrete bottom are overlapped on respectively at the top of lower part bar shaped concrete component, and the lap of splice is 5 ~
20mm；Reinforcing bar is located at lower part bar shaped concrete component top, opposite preformed layer in the preformed layer board bottom transverse plate longitudinally docked
Reinforcing bar mutually overlaps one by one in board bottom transverse plate；
Precast concrete bottom laterally closes up one by one to be close to, and side by side, wherein preformed layer board bottom is horizontal for the laterally-graded connector of two sides
The side overhanging to overhanging connection reinforcing bar is closed up with the sideways, outwardly extending not overhanging side of reinforcing bar that connects of preformed layer board bottom respectively, outside
The sideways, outwardly extending connection reinforcing bar of the preformed layer board bottom stretched is placed in the not overhanging transverse direction of the overhanging connection reinforcing bar of contiguous prefabricated laminate bottom horizontal
On ladder connector, and the sideways, outwardly extending connection reinforcing bar of preformed layer board bottom is across two adjacent preformed layer board bottom longitudinal reinforcements；
Steel bar girder is set in precast concrete bottom, and the bottom of steel bar girder is two preformed layer board bottom longitudinal reinforcements, top
Portion is a cast-in-place laminate top longitudinal reinforcement, and it is longitudinal that the floor projection of cast-in-place laminate top longitudinal reinforcement is located at two preformed layer board bottoms
The centre of reinforcing bar；Cast-in-place laminate top longitudinal reinforcement is connect with the preformed layer board bottom longitudinal reinforcement of two sides respectively using diagonal reinforcement；
Next the half of steel bar girder is located in precast concrete bottom, and upper half is located in cast-in-place overlapping layers；
4 pre-buried lifting reinforcing bars are buried in precast concrete bottom.
Further, the precast concrete bottom generally rectangle；
The transverse ends of precast concrete bottom are respectively provided with laterally-graded connector and angle, and angle is located at the outermost steel in both ends
The outside of muscle truss, the bottom of angle are connect with laterally-graded connector, and laterally-graded connector level extends to transverse ends face；
Lowest level inside precast concrete bottom is reinforcing bar, preformed layer in uniform alternatively distributed preformed layer board bottom transverse plate
The sideways, outwardly extending connection reinforcing bar of board bottom, reinforcing bar, preformed layer board bottom are sideways, outwardly extending in lateral wherein one end preformed layer board bottom transverse plate
Connection reinforcing bar does not stretch out precast concrete bottom；
It after the sideways, outwardly extending connection reinforcing bar of other end preformed layer board bottom crosses outermost placing of reinforcement truss, bends obliquely, and horizontal
Bending stretches out in the intermediate altitude of angle, and protrudes horizontally up precast concrete bottom always, and the length of stretching is laterally-graded company
The width of interface；And it is bent to same vertical direction, and extend to reinforcing bar in 2 to 1/3rd times of preformed layer board bottom transverse plate
It is returned when the spacing for connecting reinforcing bar sideways, outwardly extending with preformed layer board bottom to laterally-graded connector inner bending, until laterally-graded connection
The boundary line of mouth and angle；
The top of reinforcing bar and the sideways, outwardly extending connection reinforcing bar of preformed layer board bottom, is arranged equally distributed in preformed layer board bottom transverse plate
The long side both ends of precast concrete bottom are stretched out at preformed layer board bottom longitudinal reinforcement, preformed layer board bottom longitudinal reinforcement both ends；
The top of precast concrete bottom is cast-in-place overlapping layers, and top layer is equally distributed cast-in-place laminate top in cast-in-place overlapping layers
Transverse steel, cast-in-place laminate top transverse steel lower part are intersection normal thereto and equally distributed cast-in-place laminate top longitudinal reinforcement.
Further, the lower part bar shaped concrete component be building foundation top concrete member, it is mixed at the top of shear wall
Solidifying soil one of component and composite beam top concrete member.
Further, the sideways, outwardly extending connection reinforcing bar bottom of preformed layer board bottom is one section of embedded section reinforcing bar, in one end wherein,
30 ° obliquely ~ 60 ° bendings, formation upwarp a section reinforcing bar, and bending extends horizontally outward again, forms overhanging section of reinforcing bar, overhanging section of steel
Muscle is divided into three parts, the flat segments lengths of rebar protruded horizontally up outward, is longitudinal bending segment of the 90 ° of bendings in side thereto later
Lengths of rebar), last one end is again to the back bending section lengths of rebar for returning 90 ° of bendings, and back bending section lengths of rebar extends to always overhanging section of reinforcing bar
At 30 ~ 50mm outside starting point.
Advantage for present invention and beneficial effect are:
Present invention overlapping concrete steel ladder mouth splices two-way floor and splices the pre- of two-way floor by overlapping concrete steel ladder mouth
Floor processed is assembled and cast-in-place concrete forms.Longitudinal both ends of precast concrete bottom are overlapped on lower part bar shaped concrete structure respectively
At the top of part；Opposite preformed layer board bottom transverse steel mutually overlaps one by one；Precast concrete bottom laterally closes up one by one to be close to, horizontal
The sideways, outwardly extending connection reinforcing bar of preformed layer board bottom and laterally-graded connector are set to end, keep the splicing of bidirectional stress simply easy
Row.Superimposed sheet bidirectional stress, live monoblock type assembling can be realized without special operation, simple production process is conducive to machinery
Change, automation, intelligent production.It is convenient transportation, at low cost.It is not only with good economic efficiency and have it is superior by
Power performance.And site operation convenience, short time limit, good economical benefit, avoid the complex operations in work progress, are greatly reduced
Cost.
Detailed description of the invention
Fig. 1 is the two-way assembled schematic top plan view that present invention overlapping concrete steel ladder mouth splices two-way floor；
Fig. 2 is the preformed layer schematic top plan view that present invention overlapping concrete steel ladder mouth splices two-way floor；
Fig. 3 is the preformed layer schematic elevation view that present invention overlapping concrete steel ladder mouth splices two-way floor；
Fig. 4 is the preformed layer schematic side view that present invention overlapping concrete steel ladder mouth splices two-way floor；
Fig. 5 is that present invention overlapping concrete steel ladder mouth splices two-way floor schematic side view；
Fig. 6 is the sideways, outwardly extending connection reinforcing bar schematic side view of preformed layer board bottom；
Fig. 7 is the sideways, outwardly extending connection reinforcing bar schematic top plan view of preformed layer board bottom.
In figure, 1 is precast concrete bottom；2 be cast-in-place overlapping layers；3 be laterally-graded connector；4 be angle；5 be pre-
Preparative layer board bottom longitudinal reinforcement；6 be reinforcing bar in preformed layer board bottom transverse plate；7 be the sideways, outwardly extending connection reinforcing bar of preformed layer board bottom；8 are
Steel bar girder；9 be pre-buried lifting reinforcing bar；10 be cast-in-place laminate top longitudinal reinforcement；11 be cast-in-place laminate top transverse steel；Under 12 are
Portion's bar shaped concrete component；7-1 is embedded section reinforcing bar；7-2 is to upwarp a section reinforcing bar；7-3 is overhanging section of reinforcing bar；7-3-1 is straight
Section lengths of rebar；7-3-2 is longitudinal bending segment reinforcing bar；7-3-3 is back bending section reinforcing bar.
Specific embodiment
In order to further illustrate the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments, but not
They can be interpreted as limiting the scope of the present invention.
As shown in Figure 1, 2, it is double by overlapping concrete reinforcement ring to overlap the two-way floor of concrete steel ladder mouth splicing by the present invention
It is formed to the assembled simultaneously cast-in-place concrete of precast floor slab, mainly by precast concrete bottom 1, cast-in-place overlapping layers 2, laterally-graded connection
Mouthfuls 3, preformed layer board bottom longitudinal reinforcement 5, reinforcing bar 6 in preformed layer board bottom transverse plate, the sideways, outwardly extending connection reinforcing bar 7 of preformed layer board bottom,
Cast-in-place laminate top longitudinal reinforcement 10, cast-in-place laminate top transverse steel 11, lower part bar shaped concrete component 12 form.
Longitudinal both ends of precast concrete bottom 1 are overlapped on 12 top of lower part bar shaped concrete component, the lap of splice respectively
For 5 ~ 20mm；Reinforcing bar 6 is located at 12 top of lower part bar shaped concrete component in the preformed layer board bottom transverse plate longitudinally docked, opposite
Reinforcing bar 6 mutually overlaps one by one in preformed layer board bottom transverse plate；
Precast concrete bottom 1 laterally closes up one by one to be close to, the laterally-graded connector 3 of two sides side by side, wherein preformed layer board bottom
The side not overhanging with the sideways, outwardly extending connection reinforcing bar 7 of preformed layer board bottom be simultaneously respectively for the overhanging side of sideways, outwardly extending connection reinforcing bar 7
Hold together, it is not overhanging that the sideways, outwardly extending connection reinforcing bar 7 of overhanging preformed layer board bottom is placed in the overhanging connection reinforcing bar 7 of contiguous prefabricated laminate bottom horizontal
Laterally-graded connector 3 on, and the sideways, outwardly extending connection reinforcing bar 7 of preformed layer board bottom is longitudinal across adjacent two preformed layers board bottoms
Reinforcing bar 5.
As shown in Fig. 3,4,5, steel bar girder 8 is set in precast concrete bottom 1, the bottom of steel bar girder 8 is two
Preformed layer board bottom longitudinal reinforcement 5, top are a cast-in-place laminate top longitudinal reinforcement 10, the level of cast-in-place laminate top longitudinal reinforcement 10
Projection is located at the centre of two preformed layer board bottom longitudinal reinforcements 5；Using diagonal reinforcement by cast-in-place laminate top longitudinal reinforcement 10 respectively with
The preformed layer board bottom longitudinal reinforcement 5 of two sides connects；Next the half of steel bar girder 8 is located in precast concrete bottom 1, a upper subluxation
In in cast-in-place overlapping layers 2；4 pre-buried lifting reinforcing bars 9 are buried in precast concrete bottom 1.
Before cast-in-place overlapping layers 2 pours, cast-in-place laminate top longitudinal reinforcement 10 is set up, cast-in-place laminate top longitudinal reinforcement 10 uniformly divides
Cloth, the cast-in-place laminate top longitudinal reinforcement 10 longitudinally docked mutually overlap；
Cast-in-place laminate top transverse steel 11 is set up, cast-in-place laminate top transverse steel 11 is uniformly distributed laterally adjacent overlapping concrete
The cast-in-place laminate top transverse steel 11 of the two-way precast floor slab of reinforced steel bar ring mutually overlaps；The cast-in-place overlapping layers 2 of after-pouring is completed in assembly.
The generally rectangle of precast concrete bottom 1 of the overlapping two-way precast floor slab of concrete reinforcement ring；
The transverse ends of precast concrete bottom 1 are respectively provided with laterally-graded connector 3 and angle 4, and angle 4 is located at both ends outermost
Steel bar girder 8 outside, be the top surface inclined-plane obliquely of precast concrete bottom 1, the bottom of angle 4 and laterally-graded company
Interface 3 connects, and laterally-graded 3 level of connector extends to transverse ends face.
As shown in figure 3, the lowest level inside precast concrete bottom 1 is that uniformly alternatively distributed preformed layer board bottom is lateral
The sideways, outwardly extending connection reinforcing bar 7 of reinforcing bar 6, preformed layer board bottom in plate, laterally wherein reinforcing bar 6 in one end preformed layer board bottom transverse plate,
The sideways, outwardly extending connection reinforcing bar 7 of preformed layer board bottom does not stretch out precast concrete bottom 1；
After the sideways, outwardly extending connection reinforcing bar 7 of other end preformed layer board bottom crosses outermost placing of reinforcement truss 8, bend obliquely, and water
Flat bending stretches out in the intermediate altitude of angle 4, and protrudes horizontally up precast concrete bottom 1 always, and the length of stretching is lateral rank
The width of terraced connector 3；And it is bent to same vertical direction, and extend to 2 to 1/3rd times of preformed layer board bottom transverse plate
It is returned when the spacing of interior reinforcing bar 6 and the sideways, outwardly extending connection reinforcing bar 7 of preformed layer board bottom to laterally-graded 3 inner bending of connector, until horizontal
To the boundary line of ladder connector 3 and angle 4；
The top of reinforcing bar 6 and the sideways, outwardly extending connection reinforcing bar 7 of preformed layer board bottom, setting are uniformly distributed in preformed layer board bottom transverse plate
Preformed layer board bottom longitudinal reinforcement 5, the long side both ends of precast concrete bottom 1 are stretched out at 5 both ends of preformed layer board bottom longitudinal reinforcement；
The top of precast concrete bottom 1 is cast-in-place overlapping layers 2, and top layer is equally distributed in-situ layer in cast-in-place overlapping layers 2
Plate top transverse steel 11, transverse steel 11 lower part in cast-in-place laminate top is intersection normal thereto and equally distributed cast-in-place laminate top is vertical
To reinforcing bar 10.
The lower part bar shaped concrete component 12 is building foundation top concrete member, shear wall top concrete member
One of with composite beam top concrete member.
As shown in Figure 6,7, sideways, outwardly extending 7 bottom of connection reinforcing bar of preformed layer board bottom is one section of embedded section reinforcing bar 7-1, wherein
One end, 30 ° obliquely ~ 60 ° bending, formation upwarp a section reinforcing bar 7-2, and again horizontally outward bending extend, formed overhanging section of steel
Muscle 7-3, overhanging section reinforcing bar 7-3 points are three parts, and the flat segments lengths of rebar 7-3-1 protruded horizontally up outward, is thereto later
Longitudinal bending segment lengths of rebar 7-3-2 of the 90 ° of bendings in side, last one end are again to the back bending section lengths of rebar 7-3- for returning 90 ° of bendings
3, back bending section lengths of rebar 7-3-3 is extended to always at 30 ~ 50mm outside overhanging section of reinforcing bar 7-3 starting point.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (4)
1. overlapping concrete steel ladder mouth splices two-way floor, it is characterised in that: by the two-way prefabricated building of overlapping concrete reinforcement ring
Plate is assembled and cast-in-place concrete forms, mainly by precast concrete bottom (1), cast-in-place overlapping layers (2), laterally-graded connector
(3), preformed layer board bottom longitudinal reinforcement (5), reinforcing bar (6), the sideways, outwardly extending connection steel of preformed layer board bottom in preformed layer board bottom transverse plate
Muscle (7), cast-in-place laminate top longitudinal reinforcement (10), cast-in-place laminate top transverse steel (11), lower part bar shaped concrete component (12) group
At,
Longitudinal both ends of precast concrete bottom (1) are overlapped on respectively at the top of lower part bar shaped concrete component (12), the lap of splice
For 5 ~ 20mm；Reinforcing bar (6) is located at lower part bar shaped concrete component (12) top, phase in the preformed layer board bottom transverse plate longitudinally docked
Pair preformed layer board bottom transverse plate in reinforcing bar (6) mutually overlap one by one；
Precast concrete bottom (1) laterally closes up one by one and is close to, the laterally-graded connector (3) of two sides side by side, wherein preformed layer
The overhanging side of sideways, outwardly extending connection reinforcing bar (7) of board bottom is not overhanging with the sideways, outwardly extending connection reinforcing bar (7) of preformed layer board bottom respectively
Side close up, the sideways, outwardly extending connection reinforcing bar (7) of overhanging preformed layer board bottom is placed in the contiguous prefabricated overhanging connection of laminate bottom horizontal
On the not overhanging laterally-graded connector (3) of reinforcing bar (7), and the sideways, outwardly extending connection reinforcing bar (7) of preformed layer board bottom is across adjacent
Two preformed layer board bottom longitudinal reinforcements (5)；
Steel bar girder (8) are set in precast concrete bottom (1), the bottom of steel bar girder (8) is that two preformed layer board bottoms are vertical
To reinforcing bar (5), top is a cast-in-place laminate top longitudinal reinforcement (10), the floor projection position of cast-in-place laminate top longitudinal reinforcement (10)
In the centre of two preformed layer board bottom longitudinal reinforcements (5)；Using diagonal reinforcement by cast-in-place laminate top longitudinal reinforcement (10) respectively with two
The preformed layer board bottom longitudinal reinforcement (5) of side connects；Next the half of steel bar girder (8) is located in precast concrete bottom (1), and upper one
Half is located in cast-in-place overlapping layers (2)；
4 pre-buried lifting reinforcing bars (9) are buried in precast concrete bottom (1).
2. overlapping concrete steel ladder mouth according to claim 1 splices two-way floor, it is characterised in that: described prefabricated mixed
Solidifying soil bottom (1) generally rectangle；
The transverse ends of precast concrete bottom (1) are respectively provided with laterally-graded connector (3) and angle (4), and angle (4) is located at two
The outside of outermost steel bar girder (8) is held, the bottom of angle (4) is connect with laterally-graded connector (3), laterally-graded connection
Mouth (3) level extends to transverse ends face；
The internal lowest level of precast concrete bottom (1) be reinforcing bar (6) in uniform alternatively distributed preformed layer board bottom transverse plate,
The sideways, outwardly extending connection reinforcing bar (7) of preformed layer board bottom, reinforcing bar (6), preformed layer in lateral wherein one end preformed layer board bottom transverse plate
The sideways, outwardly extending connection reinforcing bar (7) of board bottom does not stretch out precast concrete bottom (1)；
After the sideways, outwardly extending connection reinforcing bar (7) of other end preformed layer board bottom crosses outermost placing of reinforcement truss (8), bend obliquely,
And horizontal buckling, it is stretched out in the intermediate altitude of angle (4), and protrude horizontally up precast concrete bottom (1), the length of stretching always
For the width of laterally-graded connector (3)；And it is bent to same vertical direction, and extend to 2 to 1/3rd times of preformed layer
To laterally-graded connector (3) when the spacing of reinforcing bar (6) and sideways, outwardly extending connection reinforcing bar (7) of preformed layer board bottom in board bottom transverse plate
Inner bending is returned, until the boundary line of laterally-graded connector (3) and angle (4)；
The top of reinforcing bar (6) and sideways, outwardly extending connection reinforcing bar (7) of preformed layer board bottom, setting are uniform in preformed layer board bottom transverse plate
Precast concrete bottom (1) is stretched out at the preformed layer board bottom longitudinal reinforcement (5) of distribution, preformed layer board bottom longitudinal reinforcement (5) both ends
Long side both ends；
The top of precast concrete bottom (1) is cast-in-place overlapping layers (2), is equally distributed in cast-in-place overlapping layers (2) interior top layer
Cast-in-place laminate top transverse steel (11), cast-in-place laminate top transverse steel (11) lower part be it is normal thereto intersection and it is equally distributed existing
Pour laminate top longitudinal reinforcement (10).
3. overlapping concrete steel ladder mouth according to claim 1 splices two-way floor, it is characterised in that: the lower bar
Shape concrete component (12) is building foundation top concrete member, shear wall top concrete member and composite beam top coagulation
One of native component.
4. overlapping concrete steel ladder mouth according to claim 1 splices two-way floor, it is characterised in that: preformed layer board bottom
Sideways, outwardly extending connection reinforcing bar (7) bottom is one section of embedded section reinforcing bar (7-1), in one end wherein, 30 ° obliquely ~ 60 ° bendings,
Formation upwarps a section reinforcing bar (7-2), and bending extends horizontally outward again, forms overhanging section of reinforcing bar (7-3), overhanging section of reinforcing bar (7-3)
It is divided into three parts, the flat segments lengths of rebar (7-3-1) protruded horizontally up outward is the longitudinal direction of the 90 ° of bendings in side thereto later
Bending segment lengths of rebar (7-3-2), last one end are again to the back bending section lengths of rebar (7-3-3) for returning 90 ° of bendings, back bending section lengths of rebar
(7-3-3) is extended to always at 30 ~ 50mm outside overhanging section of reinforcing bar (7-3) starting point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910067383.7A CN109853806A (en) | 2019-01-24 | 2019-01-24 | It overlaps concrete steel ladder mouth and splices two-way floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910067383.7A CN109853806A (en) | 2019-01-24 | 2019-01-24 | It overlaps concrete steel ladder mouth and splices two-way floor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109853806A true CN109853806A (en) | 2019-06-07 |
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ID=66895933
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910067383.7A Withdrawn CN109853806A (en) | 2019-01-24 | 2019-01-24 | It overlaps concrete steel ladder mouth and splices two-way floor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112144723A (en) * | 2020-09-16 | 2020-12-29 | 山东汇富建设集团建筑工业有限公司 | Bidirectional stress laminated slab and construction method thereof |
-
2019
- 2019-01-24 CN CN201910067383.7A patent/CN109853806A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112144723A (en) * | 2020-09-16 | 2020-12-29 | 山东汇富建设集团建筑工业有限公司 | Bidirectional stress laminated slab and construction method thereof |
| CN112144723B (en) * | 2020-09-16 | 2022-09-13 | 山东汇富建设集团建筑工业有限公司 | Bidirectional stress laminated slab and construction method thereof |
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