CN108265867A - A kind of plate end and plate side do not go out the bidirectional laminated slab bottom plate and its construction method of muscle - Google Patents
A kind of plate end and plate side do not go out the bidirectional laminated slab bottom plate and its construction method of muscle Download PDFInfo
- Publication number
- CN108265867A CN108265867A CN201810218161.6A CN201810218161A CN108265867A CN 108265867 A CN108265867 A CN 108265867A CN 201810218161 A CN201810218161 A CN 201810218161A CN 108265867 A CN108265867 A CN 108265867A
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- China
- Prior art keywords
- plate
- laminated slab
- bottom plate
- muscle
- bidirectional laminated
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B2005/176—Floor structures partly formed in situ with peripheral anchors or supports
Abstract
The invention discloses the bidirectional laminated slab bottom plates and its construction method that a kind of plate end and plate side do not go out muscle, " beard " muscle is not stretched out at the plate end and plate side of bidirectional laminated slab bottom plate, the pre-buried several mechanical connection sleeves in plate end and plate side, it is mechanically connected the strong ties such as the steel bar stress in one end of sleeve and bidirectional laminated slab bottom plate, the strong ties such as the other end and the anchor bar of the mechanical connection sleeve at plate end are embedded in, are embedded in the other end of mechanical connection sleeve of plate side with connecting the strong ties such as reinforcing bar.Prefabricated bidirectional laminated slab bottom plate screws in mating anchor bar or connection reinforcing bar in pre-buried branch sleeve before lifting or after lifting is in place.The then upper reinforcement and casting concrete of binding superimposed sheet, after overlapping layer concrete forms intensity, Reinforcement forms one in anchor bar or connection reinforcing bar, branch sleeve and bottom plate, the stress performance for realizing superimposed sheet and anchoring in backbar or within the walls.
Description
Technical field
The invention belongs to the design and construction technique fields of building industrialization more particularly to a kind of plate end and plate side not to go out muscle
Bidirectional laminated slab bottom plate and its construction method.
Background technology
Building industrialization is the trend of current Building Trade in China development, is the important of realization " four sections, one environmental protection " green building
Step.The important feature of building industrialization is exactly, and building element is prefabricated in the factory completion as possible, makes full use of the industrialization of factory
Mechanical and complete information system management, the standardization that the component being prefabricated in the factory is constructed by it, the systematization of management, component quality
It tends to be guaranteed, can realize that the grade of errors of construction industry is marched toward " grade " by " Centimeter Level ".
Horizontal member is one of earliest component for realizing that batch production is prefabricated, the reason is that, horizontal member is prefabricated to whole knot
The anti-seismic performance influence of structure is smaller, and the making and installation of horizontal member are also fairly simple.At present, the prefabricated application of horizontal member is most
To be widely laminated floor slab, laminated floor slab is the assembled integral being formed by stacking by superimposed sheet bottom plate and cast-in-situ steel reinforced concrete
Floor.Superimposed sheet bottom plate is prefabricated in the factory, and is transported to behind scene using tower crane lifting in place by automobile, is laid on superimposed sheet bottom plate
Then equipment preheating embedding line lays laminated floor slab top mat, finally pours the poured in place concrete on superimposed sheet bottom plate.
Superimposed sheet bottom plate is both one of component part of structure floor and the permanent formwork of cast-in-situ steel reinforced concrete thereon.
Laminated floor slab good integrity, rigidity are big, can reduce the workload of construction site support template, save artificial and turnover
Material has good economy, is that assembled architecture reduces cost, the important measures accelerated the duration, ensure quality.Overlap building
Plate lower surface is smooth, is fitted up convenient for finish coat, suitable for the more demanding skyscraper of overall stiffness and large bay building.It is folded
The way also comparative maturity of floor is closed, does not have particular/special requirement to the plane facade of building concentration, is converted into from traditional cast-in-place structural
Assembled architecture is very convenient.Superimposed sheet bottom plate monolithic prefabricated components weight is lighter, and conventional tower crane crane tool can expire
Foot requirement, speed of application and construction cost are easier to control.Superimposed sheet can according to prefabricated board seam construction, pedestal configurations,
The conditions such as length-width ratio are divided into two kinds of one-way slabs and two-way slab, and one-way slabs is the bearing of two opposite side sides, two opposite side power transmissions, between plate and plate
Using separate type seam；When two-way slab is supported along four sides, four side power transmissions design, monoblock type seam is used between plate and plate.It is two-way
Four sides of superimposed sheet bottom plate, the referred to as plate end when being connected with backbar or wall, when bidirectional laminated slab adjacent with common stress
Referred to as plate side when connected.
The Reinforcement at bidirectional laminated slab plate end need to anchor into backbar or within the walls, according to current specifications《Assembled knot
Structure technical regulation》(JGJ1-2014) the 6.6.4 articles regulation, the Reinforcement at superimposed sheet plate end is preferably stretched out from plate end and anchor
In the rear pouring concrete for entering backbar or wall, anchorage length is no less than 5d (d is Reinforcement diameter), and preferably extends through branch
Seat center line, as shown in Figure 1, this Reinforcement is stretched out from an entire row on superimposed sheet bottom plate, as beard, be commonly called as
" beard " muscle.
The connection of bidirectional laminated slab plate side generally takes monoblock type seam to connect, and seam can take post-cast strip form, after pour
Bandwidth is not preferably less than 200mm, and post-cast strip both side plate bottom Reinforcement can weld in post-cast strip, overlap connection, bending
Anchoring, as shown in Fig. 2, Reinforcement is also required to stretch out from superimposed sheet bottom plate.Therefore four of bidirectional laminated slab bottom plate
While it is required to stretch out " beard " muscle.
Bidirectional laminated slab bottom plate causes this also there are the problem of production efficiency is relatively low, cost is excessively high, transport is inconvenient at present
The main reason for a problem is exactly plate end and plate side goes out muscle, and concrete analysis is as follows：
1st, plate end and plate side go out side form when muscle destroys prefabricated panel, and side form needs to slot when making, and leads to the firm of side form
Degree is insufficient, need to additionally reinforce, and increases the cost of manufacture and fabrication cycle of platform mould, reduces the manufacturing cost of platform mould and can effectively reduce
The producer price of superimposed sheet bottom plate is conducive to the popularization of building industrialization.
2nd, plate end and plate side go out the versatility for going out muscle position and limiting platform mould of muscle, and bidirectional laminated slab is according to span and thereon
The difference of load, reinforcement diameter and spacing are also different, plate end and plate side go out muscle position and spacing generally by reinforcement
It determines.Position difference or the spacing for going out muscle are different, it is also necessary to use different platform moulds so that the poor universality of platform mould, every group
The number of turnover of platform mould is few.At present, the manufacturing cost of platform mould accounts for about 30% or so of prefabricated components cost of manufacture the, increases every group of platform
Mould uses the number of turnover, can effectively reduce the producer price of superimposed sheet bottom plate, be conducive to the popularization of building industrialization.
3rd, plate end and plate side go out spillage when muscle is also easy to cause pouring underplate concrete while side form is destroyed, and pour
During underplate concrete, " beard " muscle periphery need to carry out waterproof, anti-slurry encapsulation process, but because " beard " muscle is large number of, reinforcing bar
There is raised riblet on periphery, and waterproof is difficult to carry out, and pours easy spillage during underplate concrete, influences the quality of precast concrete, no
Conducive to the popularization of building industrialization.
4th, the presence of " beard " muscle also result in superimposed sheet bottom plate demoulding it is relatively difficult, be easily destroyed platform during pullling
Mould is also easily damaged precast concrete, influences the quality and perception of precast concrete.
5th, " beard muscle " easily bends during the making, transport and lifting of superimposed sheet bottom plate, deforms, and bends, becomes
Precast concrete breakage, unfilled corner are easily led to during shape, influences the quality and perception of precast concrete.
6th, when the lifting of superimposed sheet bottom plate is in place, the upper longitudinal bar of " beard muscle " and superimposed sheet backbar be in it is cross-shaped,
Composite beam top longitudinal reinforcement must could be arranged after superimposed sheet bottom plate is in place, influences construction period.
Invention content
For the various shortcoming for going out muscle with upper plate end and plate side, propose that a kind of plate end and plate side do not go out the bidirectional laminated slab of muscle
Bottom plate and its construction method.
The technical solution adopted in the present invention is as follows：A kind of plate end and plate side do not go out the bidirectional laminated slab bottom plate of muscle, described
" beard " muscle, the pre-buried several mechanical connection sleeves in plate end and plate side, machine are not stretched out in the plate end and plate side of bidirectional laminated slab bottom plate
The strong ties such as one end of tool branch sleeve and the steel bar stress in bidirectional laminated slab bottom plate are embedded in the mechanical connection sleeve at plate end
The other end and strong ties, the other end for being embedded in the mechanical connection sleeve of plate side such as anchor bar connect by force with connecting reinforcing bar etc.
It connects.
Further, the bidirectional laminated slab bottom plate can be common superimposed sheet bottom plate, it is truss bars concrete floor, with ribbing
Superimposed sheet bottom plate, prestressed concrete prefabricated panel, concrete hollow superimposed sheet prefabricated panel, for enhancing shear bond strength it is strong
The prefabricated panel spending and take measures, the prefabricated panel to take measures for enhancing prefabricated panel intensity are enhancing prefabricated panel
Rigidity and the prefabricated panel to take measures.
Further, the quantity of the mechanical connection sleeve can be calculated according to the stressing conditions of bidirectional laminated slab determines, nothing
Every steel bar stress is needed to be respectively provided with mechanical connection sleeve.
Further, the length of the anchor bar need to meet the anchorage length of code requirement, can when being unsatisfactory for requiring
Implement mechanical anchor for " L " type, " S " type or screw type or in its end.
Further, the lap of splice of the connection reinforcing bar need to meet the requirement of specification, when being unsatisfactory for requiring, can be
" L " type, U-typed or broken line type or the measure that other is taken to strengthen connection.
Further, the anchor bar and connection reinforcing bar be mechanically connected sleeve connection can superimposed sheet lift by crane before or
It is carried out after lifting is in place.
Do not go out the construction method of the bidirectional laminated slab bottom plate of muscle it is a further object of the present invention to provide a kind of plate end and plate side,
This method includes the following steps：
Step 1：The platform mould of prefabricated bidirectional laminated slab bottom plate is made according to design requirement, at this time because without plate end and plate side
Go out muscle, platform mould does not need to slot；
Step 2：Bidirectional laminated slab baseplate reinforcing bar is arranged according to design requirement, need to be anchored at the vertical muscle in backbar and is needed
The vertical muscle end machining to be overlapped with adjacent panels is connected by force into screw thread, and with being mechanically connected sleeve etc.；
Step 3：The position of solid mechanical branch sleeve makes mechanical connection sleeve be held out against with side form, it is ensured that mechanical connection set
Cylinder peripheral sealing is leak into mechanical connection sleeve without slurries during casting concrete；
Step 4：Pour and conserve bidirectional laminated slab underplate concrete, scene is transported to after passed examination, before lifting or
Anchor bar or connection reinforcing bar are screwed in after lifting is in place in mechanical connection sleeve, is embedded in the mechanical connection sleeve and anchor at plate end
Gu the strong ties such as reinforcing bar are embedded in the mechanical connection sleeve of plate side with connecting the strong ties such as reinforcing bar.
Step 5：The pre-buried equipment installation and upper reinforcement being laid in bidirectional laminated slab, pour and smash poured in place concrete, most
End form is into bidirectional laminated slab.
Beneficial effects of the present invention are as follows：1st, " the beard muscle " of bidirectional laminated slab bottom plate is eliminated, ensure that the complete of side form
It is whole, it can effectively reduce the cost of manufacture and fabrication cycle of platform mould.2nd, " the beard muscle " of bidirectional laminated slab bottom plate is eliminated so that
Platform mould is no longer limited by the diameter of reinforcing bar, spacing and position in superimposed sheet, improves the versatility of platform mould, increases every group of platform mould
Use the number of turnover, can effectively reduce the producer price of superimposed sheet bottom plate.3rd, " the beard of bidirectional laminated slab bottom plate is eliminated
Muscle " so that the side concrete surface of prefabricated superimposed sheet bottom plate is smooth, and perception effect is good.Superimposed sheet bottom plate make, demoulding and
Can be relatively more smooth in Transportation Engineering, be not in the bending of " beard " muscle, deformation, the influences such as precast concrete breakage, unfilled corner are pre-
The situation of concrete quality processed and perception occurs.4th, it anchor bar or the connection opportunity of connection reinforcing bar and branch sleeve, can be selected in
Before superimposed sheet lifting or after lifting is in place, if selection is before superimposed sheet lifting, construction and installation sequence goes out muscle with plate end and plate side
Bidirectional laminated slab bottom plate it is consistent；If selection is after superimposed sheet lifting is in place, then during superimposed sheet bottom plate is in place, plate side
It is smooth, the longitudinal reinforcement for not having " beard " muscle and backbar collides, and the longitudinal reinforcement of backbar can be in superimposed sheet bottom plate
It completes to lay before lifting, is conducive to the development of work progress.
Description of the drawings
Fig. 1 is plate end (supported end) structure diagram of existing bidirectional laminated slab；
Fig. 2 is plate side (monoblock type seam) structure diagram of existing bidirectional laminated slab；
Fig. 3 is the structure diagram of bidirectional laminated slab bottom plate of the present invention；
Fig. 4 is the structure diagram at the bidirectional laminated slab plate end (supported end) that anchor bar of the present invention is " L " type；
Fig. 5 is the structure diagram for the bidirectional laminated slab plate side (monoblock type seam) that present invention connection reinforcing bar is broken line type；
In figure：Poured in place concrete 1, upper reinforcement 2, bidirectional laminated slab bottom plate 3, steel bar stress 4, backbar 5, " Hu
Son " muscle 6, mechanical connection sleeve 7, anchor bar 8, connection reinforcing bar 9.
Specific embodiment
In order to make technical scheme of the present invention and advantage clearer, with reference to specific application to invention embodiment
It is further elaborated.
As shown in figure 3, a kind of plate end provided in this embodiment and plate side do not go out the bidirectional laminated slab bottom plate of muscle, this is two-way folded
Plywood bottom plate 3 is that three faces are plate end, is on one side the bidirectional laminated slab bottom plate of plate side, it is of course also possible to be plate for two opposite side
End, two opposite side are plate side, and concrete condition is depending on design requirement；" beard " muscle 6, bidirectional laminated slab are not stretched out in plate end and plate side
The pre-buried several mechanical connection sleeves 7 in the plate end and plate side of bottom plate, the present embodiment bury one for plate end every one, and plate side is all pre-buried.
The one end for being mechanically connected sleeve 7 and the 4 grade strong ties of steel bar stress in bidirectional laminated slab bottom plate, are embedded in the mechanical connection at plate end
The other end of sleeve 7 and 8 grade strong ties of anchor bar, are embedded in the other end of mechanical connection sleeve 7 of plate side with connecting reinforcing bar 9
Wait strong ties.
Do not go out the construction method of the bidirectional laminated slab bottom plate of muscle it is a further object of the present invention to provide a kind of plate end and plate side,
This method includes the following steps：
Step 1：The platform mould of prefabricated bidirectional laminated slab bottom plate 3 is made according to design requirement, at this time because without plate end and plate
Side goes out muscle, and platform mould does not need to slot；
Step 2：Bidirectional laminated slab baseplate reinforcing bar is arranged according to design requirement, need the reinforcing bar anchored in the backbar 5 and
The steel bar meter for needing to overlap with adjacent panels is connected by force into screw thread, and with mechanical connection 7 grade of sleeve；
Step 3：The position of solid mechanical branch sleeve 7 makes mechanical connection sleeve 7 be held out against with side form, it is ensured that mechanical connection
7 peripheral sealing of sleeve is leak into mechanical connection sleeve 7 without slurries during casting concrete；
Step 4：Pour and conserve bidirectional laminated slab underplate concrete, scene is transported to after passed examination, before lifting or
" L " type anchor bar 8 (plate end) is screwed in mechanical connection sleeve 7 reinforcing bar 9 (plate side) is connected with broken line type after lifting is in place,
" L " type anchor bar 8 and the strong ties such as broken line type connection reinforcing bar 9 and mechanical connection sleeve, as shown in Figure 4 and Figure 5；
After completing aforementioned four step, the pre-buried equipment installation and upper reinforcement 2 that are laid in bidirectional laminated slab pour the scene of smashing
Casting concrete 1 ultimately forms the bidirectional laminated slab for being capable of bearing load.
Claims (7)
1. a kind of plate end and plate side do not go out the bidirectional laminated slab bottom plate of muscle, it is characterised in that：The plate of the bidirectional laminated slab bottom plate
" beard " muscle is not stretched out in end and plate side, the pre-buried several mechanical connection sleeves in plate end and plate side, be mechanically connected one end of sleeve with
The strong ties such as the steel bar stress in bidirectional laminated slab bottom plate are embedded in the other end and anchor bar of the mechanical connection sleeve at plate end
Strong ties are waited, are embedded in the other end of mechanical connection sleeve of plate side with connecting the strong ties such as reinforcing bar.
2. a kind of plate end according to claim 1 and plate side do not go out the bidirectional laminated slab bottom plate of muscle, which is characterized in that described
Bidirectional laminated slab bottom plate can be common superimposed sheet bottom plate, truss bars concrete floor, superimposed sheet bottom plate with ribbing, prestressed concrete
Native prefabricated panel, the prefabricated panel of concrete hollow superimposed sheet, the prefabricated bottom to take measures to enhance shear bond strength intensity
Plate, take measures for the prefabricated panel that takes measures of enhancing prefabricated panel intensity or for enhancing prefabricated panel rigidity it is prefabricated
Bottom plate.
3. a kind of plate end according to claim 1 and plate side do not go out the bidirectional laminated slab bottom plate of muscle, which is characterized in that described
Being mechanically connected the quantity of sleeve can determine according to the calculating of the stressing conditions of bidirectional laminated slab, and machine is respectively provided with without every steel bar stress
Tool branch sleeve.
4. a kind of plate end according to claim 1 and plate side do not go out the bidirectional laminated slab bottom plate of muscle, which is characterized in that described
The length of anchor bar need to meet the requirement of specification, can be for " L " type, " S " type or screw type or at it when being unsatisfactory for requiring
Implement mechanical anchor in end.
5. a kind of plate end according to claim 1 and plate side do not go out the bidirectional laminated slab bottom plate of muscle, which is characterized in that described
The lap of splice of connection reinforcing bar need to meet the requirement of specification, can be " L " type, U-typed or broken line type when being unsatisfactory for requiring.
6. a kind of plate end according to claim 1 and plate side do not go out the bidirectional laminated slab bottom plate of muscle, which is characterized in that described
Anchor bar or connection reinforcing bar can be carried out with being mechanically connected the connection of sleeve before superimposed sheet lifts by crane or after lifting is in place.
7. a kind of plate end and plate side do not go out the construction method of the bidirectional laminated slab bottom plate of muscle, which is characterized in that this method include with
Lower step：
Step 1：The platform mould of prefabricated bidirectional laminated slab bottom plate is made according to design requirement, at this time because no plate end and plate side go out
Muscle, platform mould do not need to slot.
Step 2：According to design requirement arrange bidirectional laminated slab baseplate reinforcing bar, plate bottom steel bar stress end machining into screw thread, and
It is connected by force with being mechanically connected sleeve etc.；
Step 3：The position of solid mechanical branch sleeve makes mechanical connection sleeve be held out against with side form, it is ensured that mechanical connection sleeve week
Side seals, and is leak into mechanical connection sleeve without slurries during casting concrete；
Step 4：It pours and conserves bidirectional laminated slab underplate concrete, scene is transported to after passed examination, before lifting or lift by crane
Anchor bar or connection reinforcing bar are screwed in after in place in mechanical connection sleeve, is embedded in the mechanical connection sleeve at plate end and anchoring steel
The strong ties such as muscle are embedded in the mechanical connection sleeve of plate side with connecting the strong ties such as reinforcing bar.
Step 5：The pre-buried equipment installation and upper reinforcement being laid in bidirectional laminated slab in-situ layer, pour and smash poured in place concrete,
Ultimately form the bidirectional laminated slab for being capable of bearing load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810218161.6A CN108265867A (en) | 2018-03-16 | 2018-03-16 | A kind of plate end and plate side do not go out the bidirectional laminated slab bottom plate and its construction method of muscle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810218161.6A CN108265867A (en) | 2018-03-16 | 2018-03-16 | A kind of plate end and plate side do not go out the bidirectional laminated slab bottom plate and its construction method of muscle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108265867A true CN108265867A (en) | 2018-07-10 |
Family
ID=62775002
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810218161.6A Pending CN108265867A (en) | 2018-03-16 | 2018-03-16 | A kind of plate end and plate side do not go out the bidirectional laminated slab bottom plate and its construction method of muscle |
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| CN (1) | CN108265867A (en) |
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| CN109137983A (en) * | 2018-10-24 | 2019-01-04 | 中建科技有限公司 | Assembled integral solid exposed wall plate pipe gallery and its construction method |
| CN109518857A (en) * | 2018-10-19 | 2019-03-26 | 中国矿业大学 | A kind of bidirectional laminated slab plate side piece connecting structure and overlapping board construction method |
| CN110080456A (en) * | 2019-04-26 | 2019-08-02 | 浙江大学建筑设计研究院有限公司 | A kind of the superimposed sheet bottom plate and its construction technology of the connection of end joint bar |
| CN110512785A (en) * | 2019-09-27 | 2019-11-29 | 福建工程学院 | A kind of end tongue and groove does not go out the unidirectional superimposed sheet of muscle and formwork erecting structure and construction method |
| CN113609566A (en) * | 2021-08-18 | 2021-11-05 | 上海中森建筑与工程设计顾问有限公司 | Design method and assembly and disassembly method of prefabricated laminated slab and prefabricated laminated slab |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109518857A (en) * | 2018-10-19 | 2019-03-26 | 中国矿业大学 | A kind of bidirectional laminated slab plate side piece connecting structure and overlapping board construction method |
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| CN113609566A (en) * | 2021-08-18 | 2021-11-05 | 上海中森建筑与工程设计顾问有限公司 | Design method and assembly and disassembly method of prefabricated laminated slab and prefabricated laminated slab |
| CN113609566B (en) * | 2021-08-18 | 2024-01-26 | 上海中森建筑与工程设计顾问有限公司 | Design method of prefabricated laminated slab, assembly and disassembly method and prefabricated laminated slab |
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