CN106996161A - A kind of steel bar girder sandwich precast floor slab - Google Patents

A kind of steel bar girder sandwich precast floor slab Download PDF

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Publication number
CN106996161A
CN106996161A CN201710396962.7A CN201710396962A CN106996161A CN 106996161 A CN106996161 A CN 106996161A CN 201710396962 A CN201710396962 A CN 201710396962A CN 106996161 A CN106996161 A CN 106996161A
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China
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hard material
material layer
steel bar
cement
layer
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CN201710396962.7A
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Chinese (zh)
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桑大勇
张锋剑
曹晋
张春峰
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桑大勇
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Priority to CN201710396962.7A priority Critical patent/CN106996161A/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/288Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material
    • E04C2/2885Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material with the insulating material being completely surrounded by, or embedded in, a stone-like material, e.g. the insulating material being discontinuous
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02Load-carrying floor structures formed substantially of prefabricated units

Abstract

The present invention discloses a kind of steel bar girder sandwich precast floor slab.It is the layer structure battenboard being made up of the lower hard material layer, cement and polystyrene laminboard layer and upper hard material layer being stacked from bottom to top;Tiling has steel fabric sheet in lower hard material layer and upper hard material layer, and triangle steel bar girder is enclosed with cement and polystyrene laminboard layer, is provided with cement and polystyrene laminboard layer arranged on left and right sides face and is mutually matched tenon, groove;Triangle steel bar girder is to go up cage bar by one to be arranged in triangular apex position and by being connected the truss element that upper and lower cage bar is formed in two groups of diagonal bars of wave Longitudinal extending with two lower cage bars;Wherein, lower cage bar is placed with lower hard material layer upper surface, and upper cage bar is embedded at the bonding crack between cement and polystyrene laminboard layer and upper hard material layer.The present invention has the advantages that from heavy and light, cost be low, easy positioning, installation effectiveness is high, environmentally friendly, cost-effective, connection is reliable, anti-seismic performance by force and sound insulation, insulation, overall appearance.

Description

A kind of steel bar girder sandwich precast floor slab
Technical field
The present invention relates to the precast floor unit in a kind of building engineering field, be more specifically it is a kind of be applied to multilayer or The steel bar girder sandwich precast floor slab of high-rise steel structure engineering, can also be as internal partition, Side fascia, plate across 3.0 meters or so It is short to use across loading plate or long span non-bearing roofing board.
Background technology
At present, the floor in architectural engineering is broadly divided into two major classes --- precast floor slab and cast-in-situ floor.But traditional two Plant floor and all expose respective shortcoming and defect at leisure in use.
Precast floor slab does not occur larger changes and improvements technically for many years, substantially or with hollow hole Based on the concrete floor in hole.The major defect that such a concrete floor is present is:Plate is heavy, heaviness, poor shock resistance, not sound insulation, It is not incubated, needs repeatedly lifting and transhipment, manually installed difficulty(Individual plates are general all more than 350 kilograms, during fine position not Conveniently move), and due to being completely independent, lacking reliable connection between adjacent floor deck, easily there is plate stitch after assembling, influence Attractive in appearance, globality poor.
For cast-in-situ floor, live formwork erection, cast-in-site, although eliminate the trouble for repeatedly lifting and transporting, but It is to need to build substantial amounts of scaffold, the lumps of wood and plank sheathing in place limited at the scene, manual branch mold process is cumbersome, work is strong Degree is big, time-consuming, laborious, and with greatly improving for labor cost, this mode is more and more uneconomical, and wastes a large amount of timber moneys Source.
In recent years, steel structure frame formula building was more and more, i.e., will be arrived first as the steel column of main support, steel girder erection Position, floor, lining, Side fascia and steel column, the girder steel of subsequent installation are attached and fixed again.Then a kind of generation has been occurred as soon as For the corrugated steel cast-in-situ floor of traditional plank sheathing:Corrugated steel is positioned on girder steel, directly by the use of corrugated steel as Building template, while again as the bottom reinforcement bars of floor.Although corrugated steel cast-in-situ floor can save traditional plank sheathing and tear open The trouble of mould, but the exposed corrugated steel of floor slab bottoms unsightly, difficulty coats;Structure fire poor performance, steel plate once by Bearing capacity of floor slab is just substantially reduced after heat;In addition, with steel plate corrosion also there is reinforcing bar detraction the problem of.Therefore, this ripple Steel plate cast-in-situ floor is limited significantly using upper, is only used at present in Small-scale redevelopment engineering and fitting-out work, is failed a large amount of It is generalized in multilayer, high-rise steel structure engineering.
At present in multilayer, high-rise steel structure engineering, most widely used cast-in-place concrete floor formwork erection plate technique, is one The technology for being called " steel bar truss floor support plate " is planted, is also with inventing immediate prior art.The core of steel bar truss floor support plate Component is triangle steel bar girder, i.e., arranged by a upper cage bar, two lower cage bars along horizontal Longitudinal extending, put it is transversal Face is the component of triangle.In other words, as a horizontal bottom and two inclined sides are formd between three cage bars, It is provided with two inclined sides and is longitudinally continuous the diagonal bar for curving wave extension and is welded with upper and lower cage bar.And steel bar girder Floor support plate is exactly that the triangle steel bar girder that will be welded three is one group, in uniform mode by the water of three triangle steel bar girders Planar base surface is fixed and is welded on one piece of thin galvanized steel plain sheet, that is, constitutes the steel form that one piece 60 centimeters wide, length can arbitrarily be set, will Steel bar truss floor support plate is fixed on girder steel, then direct casting concrete slurry.Compared with above-mentioned corrugated steel cast-in-situ floor, The thin galvanized steel plain sheet of steel bar truss floor support plate bottom is flat board, and only plays temporary support concrete, in floorslab concrete Thin galvanized steel plain sheet is just ineffective after solidification, because the triangle steel bar girder in floor just constitutes the arrangement of reinforcement of floor requirement, Bearing requirements can be met.Therefore, the thin galvanized steel plain sheet of bottom can be removed after floorslab concrete solidification.In addition, three Angle steel bar girder can continuously be welded by automatic welder, machining accuracy height, efficiency high, good economy performance.Meanwhile, steel bar girder building Board saves substantial amounts of shuttering and labour cost as the formwork erection mode of main flow in current multilayer, high-rise steel structure engineering, Also save substantial amounts of timber resources.It is disadvantageous in that:The thin galvanized steel plain sheet of manual demolition needs to expend certain manpower, and The most gross distortions of galvanized steel plain sheet removed, so can only work as waste product melts down reprocessing, this also results in a new waste.
Compare from construction weight merely, either floor or wallboard, be mostly on the premise of same breadth, equal thickness The weight of Bars In Poured Concrete Slab is more than prefabricated board(For example most general office building, spot-cast concrete floor-slab thickness are 10 centimeters, are conducted oneself with dignity every square 240 kilograms, and common prefabricated board is general in 170-180 kilograms/square meter), therefore Bars In Poured Concrete Slab has no in terms of construction weight is mitigated Advantage, and also have no the feasible method for mitigating construction weight in the construction technology of Bars In Poured Concrete Slab at present.Pushed greatly in current country Under the background of the assembled architecture of row energy-saving and environmental protection, in this field of building floor, have the technique for improving precast floor slab only, subtract The deadweight of light floor, the assembly performance for improving floor is only the direction of technological innovation, and this is also the reason place of the present invention.
The content of the invention
The purpose of the present invention exactly provides a kind of steel bar girder for the weak point in the presence of above-mentioned prior art Sandwich precast floor slab.The present invention has from heavy and light, cost be low, easy positioning, installation effectiveness are high, environmentally friendly, cost-effective, connection can Lean on, anti-seismic performance strong and the advantages of sound insulation, insulation, overall appearance.
The purpose of the present invention can be realized by following technique measures:
The steel bar girder sandwich precast floor slab of the present invention is lower hard material layer, the cement and polystyrene laminboard layer by being stacked from bottom to top The layer structure battenboard constituted with upper hard material layer;Tiling has in the lower hard material layer and upper hard material layer Steel fabric sheet(Purpose is anticracking and strengthens top layer rigidity), some groups are enclosed with the cement and polystyrene laminboard layer along lengthwise The triangle steel bar girder of direction extension, is provided with Longitudinal extending on cement and polystyrene laminboard layer arranged on left and right sides face and is mutually matched Tenon, groove(The quick positioning and quick splicing of adjacent two pieces of battenboards can be realized when assembling at the scene, and in splicing seams Place is using good sealing effect after the processing of cement base adhesives);The triangle steel bar girder is under a upper cage bar and two Cage bar is arranged in triangular apex position and connects upper and lower cage bar formation by two groups of diagonal bars in wave Longitudinal extending Truss element;Wherein, lower cage bar is placed with lower hard material layer upper surface, and upper cage bar is embedded in cement and polystyrene laminboard layer and upper hard At bonding crack between the material bed of material.
The area that heretofore described upper cage bar is wrapped up by upper hard material layer is more than what is wrapped up by cement and polystyrene laminboard layer Area(It is easy to combine and bears pressure).
The thickness of heretofore described upper hard material layer is more than the thickness of lower hard material layer, the cement and polystyrene sandwich The thickness of layer is more than the thickness of upper hard material layer.
The width of heretofore described steel fabric sheet is equal with the width of upper and lower hard material layer.
The quantity of heretofore described triangle steel bar girder is three groups.
The quantity of heretofore described tenon and groove is one.
The cross sectional shape of heretofore described tenon and groove is trapezoidal(With pattern draft, adjacent two pieces of battenboard groups Tenon and groove are easily assembled during dress, are easy to quick positioning).
The cross sectional shape of heretofore described tenon and groove is semicircle arcuation(During the assembling of adjacent two pieces of battenboards tenon and Groove is easily assembled, and is easy to quick positioning, and corresponding arcuation mould is easily worked).
The design principle of the present invention is as follows:
From the above as can be seen that the cement and polystyrene laminboard layer positioned at intermediate layer accounts for main body on the structural thickness of battenboard (thickness of lower hard material layer is 5mm~10mm, and the thickness of upper hard material layer is 10mm~20mm, and the cement in intermediate layer gathers Thickness 80mm~150mm of benzene laminboard layer), that is, the large percentage of battenboard plate bulk is accounted for, and intermediate layer is gathered by proportion is small (density of mixed slurry is about every cubic metre to the mixed slurry moulding by casting that benzene particle is formed after being mixed with cement slurry 250 kilograms), compared with the steel bar truss floor support plate of traditional simplex concrete structure, the deadweight of floor mitigates significantly.Meanwhile, gather Benzene particle is derived from discarded styrofoam, and waste is secondary to be utilized, cost-effective, environmental protection;And granular polystyrene has well Heat insulation effect and soundproof effect.Offer and extend longitudinally and shape in the both sides of the steel bar girder sandwich precast floor slab of the present invention Shape and size match tenon and groove, quick positioning can be achieved and fast between adjacent two pieces of battenboards when so assembling at the scene Speed Pinyin connects, and installation effectiveness is high.Simultaneously as be equipped with the upper and lower layer hard material layer of sandwich precast floor slab can with anticracking and Strengthen surface rigidity steel fabric sheet, along with after adjacent floor deck is quickly positioned can at splicing seams using cement base be bonded Material carries out encapsulation process, and the easy brush trowelling material in outer surface of hard material layer carries out later stage decoration, therefore this hair up and down It is bright to not only solve traditional plate stitch problem, and the overall plate face of floor is attractive in appearance.The present invention is with multigroup triangle steel bar girder As the light floor of arrying main body, after floor is placed on girder steel matrix, it can be easy to knock out and be placed with underfloor hard The lower cage bar of material layer upper surface, and reinforcing bar point is welded on girder steel matrix is positioned and fixed, solve conventional floors and exist The problem that can not be positioned on girder steel, connection is reliable, bearing capacity is strong, anti-seismic performance is greatly improved.
Beneficial effects of the present invention are as follows:
The present invention has from heavy and light, cost be low, easy positioning, installation effectiveness is high, environmentally friendly, cost-effective, connection is reliable, anti-seismic performance The advantages of strong and sound insulation, insulation, overall appearance.
More specifically, current cast-in-situ floor weight is generally more than 240 kilograms/square meter, and precast floor slab weight is general all big Accomplish 70 kilograms -100 kilograms/square meter in the weight of 170 kilograms/square meter, and the steel bar girder sandwich precast floor slab of the present invention, examine Consider steel structure column in multi-storey steel structure, beam main body frame weight it is general within every square metre of 100 kilograms of construction area, Every square metre of floor weight, which mitigates more than 140 kilograms, means that architectural complex weight mitigates significantly, and building cost is also accordingly significantly Reduce.Compared to common prefabricated board, the half due to weight less than normal concrete prefabricated board is well suited for construction site multiple Dismantle, install and use;Simultaneously in post-disaster reconstruction, it is adapted to high-volume and transports, quick New Dwelling.
Brief description of the drawings
Fig. 1 is the sectional elevation of structure one of the present invention.
Fig. 2 is the longitudinal section of the present invention.
Fig. 3 is the cross-sectional front view of intermediate cam steel bar girder of the present invention.
Fig. 4 is Fig. 3 left view.
Fig. 5 is the sectional elevation of structure two of the present invention.
Sequence number in figure:1st, lower hard material layer, 2, cement and polystyrene sandwich of layers, 3, upper hard material layer, 4, steel fabric sheet, 5, Triangle steel bar girder, 6, groove, 7, tenon, 8, upper cage bar, 9, lower cage bar, 10, diagonal bar.
Embodiment
The present invention is below with reference to embodiment(Accompanying drawing)It is further described:
Embodiment one
As shown in Figure 1 to 4, steel bar girder sandwich precast floor slab of the invention is the lower hard material layer by being stacked from bottom to top 1st, the layer structure battenboard that cement and polystyrene laminboard layer 2 and upper hard material layer 3 are constituted;In the lower hard material layer 1 and upper Tiling has steel fabric sheet 4 in hard material layer 3(Purpose is anticracking and strengthens top layer rigidity), in the cement and polystyrene sandwich Some groups of triangle steel bar girders 5 extended along longitudinally are enclosed with layer 2, on the arranged on left and right sides face of cement and polystyrene laminboard layer 2 Tenon 7, the groove 6 for being provided with Longitudinal extending and being mutually matched(The quick of adjacent two pieces of battenboards can be realized when assembling at the scene Positioning and quick splicing, and at splicing seams using the processing of cement base adhesives after good sealing effect);The triangle reinforcing bar Truss 5 is to be arranged in triangular apex position and by wave Longitudinal extending by a upper cage bar 8 and two lower cage bars 9 Two groups of diagonal bars 10 connect the truss element of upper and lower cage bar 8,9 formation;Wherein, lower cage bar 9 is placed with lower hard material layer 1 Surface, upper cage bar 8 is embedded at the bonding crack between cement and polystyrene laminboard layer 2 and upper hard material layer 3.
The area that heretofore described upper cage bar 8 is wrapped up by upper hard material layer 3 is more than to be wrapped up by cement and polystyrene laminboard layer 2 Area(It is easy to combine and bears pressure).
The thickness of heretofore described upper hard material layer 3 is more than the thickness of lower hard material layer 1, the cement and polystyrene folder The thickness of sandwich layer 2 is more than the thickness of upper hard material layer 3.
The width of heretofore described steel fabric sheet 4 is equal with the width of upper and lower hard material layer 3,1.
The quantity of heretofore described triangle steel bar girder 5 is three groups.
The quantity of heretofore described tenon 7 and groove 6 is one.
The cross sectional shape of heretofore described tenon 7 and groove 6 is trapezoidal(With pattern draft, adjacent two pieces of battenboards Tenon 7 and groove 6 are easily assembled during assembling, are easy to quick positioning).
Embodiment two
The present embodiment and the difference of embodiment one are only in that:The cross sectional shape of the tenon 7 and groove 6 is semicircle arcuation (Tenon 7 and groove 6 are easily assembled during adjacent two pieces of battenboards assembling, are easy to quick positioning, and corresponding arcuation mould easily adds Work).
The present invention specifically used process be:
The steel bar girder sandwich precast floor slab of the present invention can also be used as internal partition, Side fascia as indoor floor.Use During operation it is very simple, by taking floor as an example:First, some pieces of battenboards of the invention are transported and is placed into correspondence Need position to be mounted, makes the front and rear often tenon 7 of adjacent two pieces of battenboards, the mutual clamp of groove 6, is spliced;Then, in building After plate positioning, steel fabric sheet 4 and lower cage bar 9 in lower hard material layer 1 are knocked out in needs and the position that girder steel matrix is connected, with Girder steel matrix is spot-welded together, then battenboard just with girder steel matrix it is unusually strong be fixed as an entirety, thus easily Solve the problem that common prefabricated board can not be positioned in girder steel matrix, and greatly strengthen battenboard in use anti- Shock stability;After positioning is fixed, the cement injection base adhesives at the splicing seams of adjacent battenboard, complete piece sealing and Bonding, is easy in later stage fitment process to underfloor external coating coating, to upper surface laying floor etc..
Additionally by experimental verification, it is short non-across loading plate or long span across 3.0 meters or so that the present invention is also used as plate Carrying roofing board is used:In structural steelwork, by setting steel secondary beam to be easily met the span requirement of floor.With width Exemplified by 60cm, long 360cm, high 10cm steel bar girder sandwich precast floor slab, three group three is disposed with cement and polystyrene laminboard layer 2 Angle steel bar girder 5, the height of triangle steel bar girder 5 is 8.5cm, a diameter of Ф 10mm of upper cage bar 8, lower cage bar 9 it is a diameter of Ф 8mm, upper and lower cage bar 8,9 is III grade of reinforcing bar, and the thickness of lower hard material layer 1 is 5mm, and the thickness of upper hard material layer 3 is 15mm, actual measurement plate weighs 175 kilograms, i.e., nearly weigh 80 kilograms per square meter.700 public affairs are first added on the steel bar girder sandwich precast floor slab Jin evenly load, actual measurement amount of deflection is less than 2cm, now every 325 kilograms of square meter evenly load, and general floor plan payload values are 200 kilograms/square meter.From simple loading test, the bearing capacity of steel bar girder sandwich precast floor slab fully meets requirement, And when reaching 325 kilograms of every square meter dead load, plate does not have the sign of any destruction yet, and plate has good elasticity.With it is common pre- Making sheet is compared to slightly discrepant, deflection(Amount of deflection i.e. in the middle part of plate)It is slightly larger, in 700 kilograms of total load heads amount of deflection close to 2cm, this Mainly due to steel bar girder sandwich precast floor slab main body be steel bar girder plus light sandwich layer, so during stress deflection compared with Greatly.If same plate, span is changed to 2.4 meters, then under same evenly load, according to the elastic theory of plate, amount of deflection will become 1/5th during for 3.6 meters of spans, i.e. amount of deflection will be kept to be less than 4mm, the i.e. deflection less than plate length 2/1000ths, and this is just complete Bearing capacity and the amount of deflection requirement of full up pedal plate.Therefore, for this brassboard, as 2.4 meters across loading plate it is enough, such as Fruit will increase span, and side can be appropriate to increase thickness of slab to realize by increasing bar diameter.On the whole, the present invention is relatively fitted Used together in as 3.0 meters or so of the short long span non-bearing roofing board within loading plate or 6.0 meters.
The steel bar girder sandwich precast floor slab of the present invention carries out in factory pouring shaping using the template of horizontal positioned, tool Body manufacturing process is as follows:
(1)Spelling steel form:Steel form is spelled by counterdie, side form and end module, formed in the moulding by casting as shown in Figure 1 of cross section Chamber.Wherein, the necessary horizontal positioned of bed die, to ensure that layers of material thickness is uniform;It is suppressed with side form shaping panel for sandwich Concavity cambered surface, convex cambered surface that tenon 7, the groove 6 of floor are molded.
(2) group weldering triangle steel bar girder:The structure of triangle steel bar girder 5 refers to Fig. 3, Fig. 4, will be oblique using automatic welder Muscle 10 continuously welds with upper cage bar 8, lower cage bar 9 and forms triangle steel bar girder.
(3)Cloth muscle:After steel form spelling is finished, steel fabric sheet 4 is laid in the bottom of forming cavity first, then in steel wire Triangle steel bar girder 5 is put on piece 4, triangle steel bar girder 5 should be fixed at two ends, not shift position during ensureing to pour.Typically The width of sandwich floor slab is 60cm, puts three groups high 8.5cm~15cm steel bar girders.
(4)Pour lower hard material layer:Lower hard material layer 1 is poured using cement-based grouting material, general bottom is poured Thickness 5mm plays cover to reinforcement to 10mm, while being easy to later stage brushing paint.
(5)Joints cement polyphenyl sandwich layer:After after the lower initial set of hard material layer 1, in the top cavity of lower hard material layer 1 Middle cast by the small granular polystyrene of proportion mix with cement slurry after the mixed slurry that is formed, it is highly that slurry floods substantially to pour The radius for the upper cage bar 8 that the upper top exposed portion of cage bar 8 is slightly larger than, forms water in triangle steel bar girder 5, triangle steel bar girder 5 Mud polyphenyl sandwich layer 2.
(6)Pour hard material layer:After after the initial set of cement and polystyrene laminboard layer 2, in the upper surface of cement and polystyrene laminboard layer 2 Steel fabric sheet 4 is laid, then casting cement base grouting material, pour the upper surface of slurry and the side form of steel form, end mould top surface Concordantly, the thickness of upper hard material layer 3 is typically set to 10mm~20mm after solidification.Wherein, upper cage bar 8 is simultaneously by upper hard material Layer 3 and lower hard material layer 1 are wrapped up, and are easy to combine and are born pressure.
(7)Maintenance, stock, use:Under normal temperature conserve three days can stock stack, can come into operation within 15th.

Claims (8)

1. a kind of steel bar girder sandwich precast floor slab, it is characterised in that:It is the lower hard material layer by being stacked from bottom to top (1), cement and polystyrene laminboard layer(2)With upper hard material layer(3)The layer structure battenboard of composition;In the lower hard material layer (1)With upper hard material layer(3)Inside tiling has steel fabric sheet(4), in the cement and polystyrene laminboard layer(2)In be enclosed with it is some The triangle steel bar girder that group extends along longitudinally(5), in cement and polystyrene laminboard layer(2)Arranged on left and right sides is provided with longitudinal direction on face Extension and the tenon being mutually matched(7), groove(6);The triangle steel bar girder(5)It is by a upper cage bar(8)With under two Cage bar(9)It is arranged in triangular apex position and by two groups of diagonal bars in wave Longitudinal extending(10)Connect upper and lower cage bar (8、9)The truss element of formation;Wherein, lower cage bar(9)It is placed with lower hard material layer(1)Upper surface, upper cage bar(8)It is embedded in Cement and polystyrene laminboard layer(2)With upper hard material layer(3)Between bonding crack at.
2. steel bar girder sandwich precast floor slab according to claim 1, it is characterised in that:The upper cage bar(8)By upper hard The material bed of material(3)The area of parcel is more than by cement and polystyrene laminboard layer(2)The area of parcel.
3. steel bar girder sandwich precast floor slab according to claim 1, it is characterised in that:The upper hard material layer(3) Thickness be more than lower hard material layer(1)Thickness, the cement and polystyrene laminboard layer(2)Thickness be more than upper hard material layer (3)Thickness.
4. steel bar girder sandwich precast floor slab according to claim 1, it is characterised in that:The steel fabric sheet(4)Width Degree and upper and lower hard material layer(3、1)Width it is equal.
5. steel bar girder sandwich precast floor slab according to claim 1, it is characterised in that:The triangle steel bar girder(5) Quantity be three groups.
6. steel bar girder sandwich precast floor slab according to claim 1, it is characterised in that:The tenon(7)And groove(6) Quantity be one.
7. steel bar girder sandwich precast floor slab according to claim 1, it is characterised in that:The tenon(7)And groove(6) Cross sectional shape to be trapezoidal.
8. steel bar girder sandwich precast floor slab according to claim 1, it is characterised in that:The tenon(7)And groove(6) Cross sectional shape be semicircle arcuation.
CN201710396962.7A 2017-05-31 2017-05-31 A kind of steel bar girder sandwich precast floor slab Pending CN106996161A (en)

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Cited By (4)

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CN108000680A (en) * 2017-11-21 2018-05-08 重庆大业新型建材集团有限公司 The laminated type preparation method of cored slab
CN108044788A (en) * 2017-11-21 2018-05-18 重庆大业新型建材集团有限公司 The stacked preparation method of Side fascia
CN108978987A (en) * 2018-08-31 2018-12-11 张跃 Core plate of concrete and preparation method thereof is built in a kind of
CN111794444A (en) * 2020-07-31 2020-10-20 曹宝军 Passive building stainless steel assembled reinforcement structure system

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CN205894420U (en) * 2016-08-05 2017-01-18 张永春 Floor can be assembled in prefabrication of light body
CN106522440A (en) * 2016-11-17 2017-03-22 西咸新区矩阵实业有限公司 Composite floor slab based on polyphenyl granule fiber concrete sandwich insulation and construction method
CN206752828U (en) * 2017-05-31 2017-12-15 桑大勇 A kind of steel bar girder sandwich precast floor slab

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108000680A (en) * 2017-11-21 2018-05-08 重庆大业新型建材集团有限公司 The laminated type preparation method of cored slab
CN108044788A (en) * 2017-11-21 2018-05-18 重庆大业新型建材集团有限公司 The stacked preparation method of Side fascia
CN108978987A (en) * 2018-08-31 2018-12-11 张跃 Core plate of concrete and preparation method thereof is built in a kind of
CN111794444A (en) * 2020-07-31 2020-10-20 曹宝军 Passive building stainless steel assembled reinforcement structure system

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