A kind of reinforced concrete prefabricated superimposed sheet with the truss rib
Technical field
The utility model relates to a kind of prefabricated superimposed sheet in the building engineering field, especially a kind of reinforced concrete prefabricated superimposed sheet with the truss rib.Truss rib inside can be provided with lightweight section truss or plain bars truss.
Background technology
At present, traditional Structural Engineering is residential project especially, floor adopts common monolithic reinforced concrete structure mostly, need install template and support system earlier during construction, assembling reinforcement again, lay equipment installation in the plate, concreting then treats that concrete strength reaches after the designing requirement stripping and support system again.The desired field procedure of this traditional construction technology is numerous and diverse, long construction period.
Continuous expansion along with the infrastructure scale; improving constantly of labour cost; and strict day by day to requirement on environmental protection, above-mentioned traditional construction technology more and more can not satisfy the requirement of China's sustainable development, also is difficult to adapt to the housing industrialization policy that China deepens constantly popularization.
For this reason, prefabricated superimposed sheet technology begins to be subjected to the attention of industry, is necessary to develop to be convenient to production and processing, to be easy to construction and installation and the good novel prefabricated superimposed sheet of structural performance.
Summary of the invention
The utility model is to provide a kind of reinforced concrete prefabricated superimposed sheet of novel band truss rib.
Advantages such as that described superimposed sheet has is big from heavy and light, longitudinal rigidity, easy construction, good integrity, bidirectional stress performance are good.
The utility model provides a kind of reinforced concrete prefabricated superimposed sheet with the truss rib.Described prefabricated superimposed sheet comprises reinforced concrete floor and the longitudiual truss rib vertical with described base plate, and wherein said truss rib portion within it is provided with lightweight section truss or plain bars truss.
Described truss rib comprise upper chord, parallel with described upper chord and with lower chord that described base plate is combined and be arranged at described upper chord and described lower chord between a plurality of truss rib web members, form a plurality of holes between wherein said a plurality of truss rib web members.
Described base plate interior is provided with reinforcing bar, and it comprises as the longitudinal reinforcement of main principal rod and the structure muscle of vertical direction.
The described lightweight section truss that described truss rib inside is provided with is to be formed by a pair of Z type lattice configuration steel assembling combination, wherein said Z type lattice configuration steel has two edges of a wing that are parallel to each other and is connected a plurality of shaped steel web members that parallel interval is arranged between the described edge of a wing, and described a pair of Z type lattice configuration steel makes up in the superimposed mode of positive and negative.Wherein said Z type lattice configuration steel is integrally formed by the plane out-draw by the band steel, and described band steel has the parallel slit of many cuttings in order to form required shaped steel configuration after stretching before being stretched.
As required, described prefabricated superimposed sheet can comprise together, twice or the described truss rib of multiple tracks.The vertical rib of multiple tracks can further increase the rigidity of precast plate, and reduces piece, can improve the globality of plate, and accelerates speed of application.
The precast plate that is arranged so that of truss rib has bigger rigidity and supporting capacity, reduces the distortion in lifting and installation process.Because the overall height of truss rib is identical with the gross thickness of prefabricated superimposed sheet, the hole of truss rib is relatively large, transverse reinforcement is convenient to wear in portion within it, be convenient to the laying of equipment installation in the floor simultaneously, can form the good prefabricated superimposed sheet of bidirectional stress performance behind layout top longitudinal reinforcement and the concreting.
For strengthening the applicability of described superimposed sheet, when total floor thickness during greater than the overall height of truss rib, also can above the truss rib, add certain thickness overlapping layers is set.
Invention technology of the present utility model also relates to installation, splicing and the casting method of above-mentioned prefabricated superimposed sheet.Described prefabricated superimposed sheet can be spliced to form the amalgamation superimposed sheet by adjacent side.Contiguous prefabricated plate side splicing place, the concrete floor portion's chamfering of can setting a trap, contiguous prefabricated plate preferably can leave the slit between the side, and can be provided with in described slit along the colligation muscle of described slit direction.Vertical colligation muscle is set and can in subsequent technique, adopts in the plate seam and hang the mould concreting, with the globality of reinforcement plate.
After the assembly unit, the top in described hole is arranged the transversely steel bar stress vertical with described truss rib and horizontal lower stress reinforcing bar respectively with the bottom, and is avoiding the truss rib place layout vertical upper reinforcement parallel with described truss rib.
Poured in place concrete forms the thickness bidirectional stress superimposed sheet consistent with described truss rib overall height.
The present invention has following advantage:
(1) the steel concrete rib of employing truss form makes it stressed reasonable, and longitudinal rigidity and bearing capacity are bigger, and be not yielding in transportation and hoisting process.
(2) bore hole size that forms on the truss rib is bigger, can effectively alleviate the precast plate deadweight, make things convenient for the construction that wears of the interior equipment installation of reinforcing bar and floor, and pass is simple, is convenient to plant produced and processing.
(3) adjacent panel side splicing place, the base plate portion's chamfering of can setting a trap can be stayed the plate seam between precast plate during site operation, vertical colligation muscle is set in the plate seam and adopts and hang mould concreting, good integrity.
(4) gross thickness of prefabricated superimposed sheet is consistent with the overall height of precast plate truss rib, and easy construction is easy to guarantee the planeness of thickness and the plate face of superimposed sheet improve construction quality.
(5) the reinforcing bar configuration rationally guarantees behind the concreting that at the scene cracking resistance and the bidirectional stress performance of superimposed sheet is good.
(6) simple, the saving material of the lightweight section truss fabrication of truss rib inside can be realized suitability for industrialized production.
(7) be combined with the bearing wall based on prefabricated units, can increase substantially industrialization level and the speed of application of construction work, reduce on-the-spot form work engineering and reinforced bar engineering, improve workmanship, meet the housing industrialization policy of country.
Description of drawings
Based on briefly introducing of aforementioned relevant summary of the invention, and according to the detailed description of aftermentioned at the specific embodiment of the invention, the accompanying drawing below this provides is in order to make technical scheme of the present invention and feature can be better understood.
Fig. 1 is the structural representation according to the reinforced concrete prefabricated superimposed sheet of the band truss rib of a kind of specific embodiment of the present invention.
Fig. 2 is the structural representation according to the reinforced concrete prefabricated superimposed sheet of the band truss rib of the another kind of specific embodiment of the present invention.
Fig. 3 and Fig. 4 have described the lightweight section trussed construction schematic diagram that the truss rib inside of the reinforced concrete prefabricated superimposed sheet of Fig. 1 or band truss rib shown in Figure 2 is provided with, the a pair of Z type lattice configuration steel that shows of Fig. 3 wherein, being used for assembling combination becomes lightweight section truss shown in Figure 4.
Fig. 5 has wherein also schematically shown reinforcement placement for the amalgamation superimposed sheet schematic diagram that the reinforced concrete prefabricated superimposed sheet amalgamation by twice band truss shown in Figure 1 rib constitutes.
Fig. 6 A is the longitudinal profile schematic diagram of reinforced concrete prefabricated superimposed sheet after fluid concrete of band truss rib shown in Figure 5.
Fig. 6 B is the horizontal section schematic diagram of reinforced concrete prefabricated superimposed sheet after fluid concrete of band truss rib shown in Figure 5.
The specific embodiment
For invention technical scheme of the present utility model and concrete feature can be better understood, pin hereinafter is provided, and specific description of embodiments of the present invention, in order to content of the present invention and feature are described further.
Embodiment 1. has the reinforced concrete prefabricated superimposed sheet of one truss rib
As shown in Figure 1, the reinforced concrete prefabricated superimposed sheet 100 of the band truss rib of this example has truss rib 120 one.This superimposed sheet 100 comprises reinforced concrete floor 110 and the longitudiual truss rib 120 vertical with base plate 110, wherein truss rib 120 within it portion be provided with lightweight section truss 420.
Described truss rib 120 comprise upper chord 121, parallel with upper chord 121 and and the lower chord 122 of base plate 110 combinations and be arranged at upper chord 121 and lower chord 122 between a plurality of truss rib web members 123, form a plurality of holes 124 between wherein said a plurality of truss rib web members 123.Preferably, described a plurality of hole 124 is shaped as triangle and/or trapezoidal.A plurality of holes 124 bight separately can be provided with the circular arc chamfering.
Described base plate 110 inside are provided with reinforcing bar, and it comprises as the longitudinal reinforcement 130 of main principal rod and the structure muscle 140 of vertical direction, according to requirement of engineering, and extended or end face or the side of not stretching out base plate 110 of longitudinal reinforcement 130 and/or structure muscle 140.
Lightweight section truss 420(Fig. 4 that truss rib 120 inside are provided with) be by a pair of Z type lattice configuration steel 320(Fig. 3) form with the mode assembling combination of welding, wherein said Z type lattice configuration steel 320 has two edges of a wing that are parallel to each other 321 and is connected a plurality of shaped steel web members 323 that parallel interval is arranged between the described edge of a wing 321, and described a pair of Z type lattice configuration steel 320 makes up in the superimposed mode of positive and negative.The cross sectional shape on the described edge of a wing 321 is roll coil of strip limit shape (Fig. 3), like this, the part of the edge of a wing 321 contiguous a plurality of shaped steel web members 323 is vertical with a plurality of shaped steel web members 323 formed planes, and the bead portion on the edge of a wing 321 collapses into and a plurality of web member 323 formed plane parallel towards a plurality of shaped steel web members 323.The cross sectional shape on the described edge of a wing 321 also can be in-line, and the hole lattice between a plurality of shaped steel web members are shaped as parallelogram 324, and wherein the edge of a wing 321 is vertical with a plurality of shaped steel web members 323 formed planes.
Described Z type lattice configuration steel 320 is integrally formed by the plane out-draw by the band steel, and described band steel has the parallel slit of many cuttings in order to form required shaped steel configuration after stretching before being stretched.
As required, the end face of described base plate 110 can be designed as pitted skin.The edge of base plate 110 can be provided with local chamfering 115.
In addition, the depth of section of described lower chord 122 can be designed as quite or is slightly larger than the thickness of described base plate 110.
Embodiment 2. has the reinforced concrete prefabricated superimposed sheet of twice truss rib
As shown in Figure 2, the reinforced concrete prefabricated superimposed sheet 200 of the band truss rib of this example has twice truss rib 120.This superimposed sheet 200 comprises reinforced concrete floor 110 and the twice longitudiual truss rib 120 vertical with base plate 110, wherein truss rib 120 within it portion be provided with lightweight section truss 420 separately.
Described truss rib 120 comprise upper chord 121, parallel with upper chord 121 and and the lower chord 122 of base plate 110 combinations and be arranged at upper chord 121 and lower chord 122 between a plurality of truss rib web members 123, form a plurality of holes 124 between wherein said a plurality of truss rib web members 123.Preferably, described a plurality of hole 124 is shaped as triangle and/or trapezoidal.A plurality of holes 124 bight separately can be provided with the circular arc chamfering.
Described base plate 110 inside are provided with reinforcing bar, and it comprises as the longitudinal reinforcement 130 of main principal rod and the structure muscle 140 of vertical direction, according to requirement of engineering, and extended or end face or the side of not stretching out base plate 110 of longitudinal reinforcement 130 and/or structure muscle 140.
Other structural element of this routine superimposed sheet 200 comprises the structure of the lightweight section truss 420 that truss rib 120 inside are provided with, and similar with described in the embodiment 1 given unnecessary details no longer one by one at this.
Embodiment 3. amalgamation superimposed sheets
As shown in Figure 5, the prefabricated superimposed sheet that provides of embodiment 1 100 is spliced to form amalgamation superimposed sheet 500 with another superimposed sheet 100 by adjacent side.Leave slit 639 between the adjacent side of two superimposed sheets that amalgamation superimposed sheet 500 is included.Preferably, the width in described slit is that about 30mm is to about 100mm.
In described slit 639, be provided with along the colligation muscle 180 of described slit direction, in order to by hanging mould concreting 625, with the globality of the superimposed sheet that strengthens described splicing.
The scene installation of embodiment 4. superimposed sheets or assembly unit and concreting
As shown in Figure 5, prefabricated superimposed sheet 100 hoisted in position that embodiment 1 is provided, and assembling reinforcement.Top in hole 124 and bottom are arranged the transversely steel bar stress 150 vertical with truss rib 120 and horizontal lower stress reinforcing bar 160 respectively, and arrange the vertical upper reinforcement 170 parallel with truss rib 120 avoiding truss rib 120 places.
Assembly unit superimposed sheet (described as embodiment 3) carries out the adjacent side splicing with two or more superimposed sheets 100, reserves 30~100mm plate seam between plate, in the plate seam vertical colligation muscle 180 is set.
Poured in place concrete shown in Fig. 6 A and 6B, forms the thickness bidirectional stress superimposed sheet consistent with described truss rib 120 overall heights.
The part is installed hangs mould and side form, build the overlapping layers concrete.Seam crossing adopts and hangs mould, treats that template installs, and concreting is to truss rib 2 top mark eminences.
In the description of this paper, invention product of the present utility model and method are described as special shape, material or process sequence, and provide some detailed parameters for illustrative purposes at some specific embodiments.Yet, should be appreciated that these specifically describe to technical scheme generation restriction of the present invention; The change and the accommodation that is to say relevant shape, material or process sequence are still within the spirit and scope of the present invention involved.
The above-mentioned specific embodiment is that example is described and explanation for summary of the invention of the present utility model is carried out, and is not that scope of the present invention is carried out any restriction.Those skilled in the art uses equivalent structure that manual of the present invention and claim do or the variation of material, all should belong to protection scope of the present invention.