CN205369679U - Prefabricated hollow slab - Google Patents
Prefabricated hollow slab Download PDFInfo
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- CN205369679U CN205369679U CN201520772346.3U CN201520772346U CN205369679U CN 205369679 U CN205369679 U CN 205369679U CN 201520772346 U CN201520772346 U CN 201520772346U CN 205369679 U CN205369679 U CN 205369679U
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Abstract
The utility model provides a prefabricated hollow slab, including top layer and bottom to and the hollow device of setting between top layer and bottom, prefabricated hollow slab still includes the rack that prefabricated hollow slab used, the rack that prefabricated hollow slab used includes the net piece of two relative intervals settings, nets for two to be provided with at least one between the pieces and to net the ribbed of the perpendicular setting of piece, be provided with horizontal backup pad or support column or supporting protruded block in hollow device's the inner chamber, hollow device set up in between two net pieces. So, prefabricated hollow slab can one pouring shaping in prefabricated hollow slab forming die, can not lead to the inhomogeneous condition of prefabricated hollow slab pore wall to appear, and be provided with horizontal backup pad or support column or supporting protruded block in the inner chamber of body, has played good supporting role to the hollow tube, even its wall thickness degree is very thin, also can satisfy the requirement of supporting cast in situ concrete and pouring the load.
Description
Technical field
This utility model relates to a kind of building piece, particularly to a kind of precast hollow slab.
Background technology
China's Urbanization Construction is fast-developing, and construction scope ranks first in the world.Currently, building industrialization is extremely urgent, building industry green construction transition, and energy-saving and emission-reduction in building course manufacture the precast hollow slab with superior structural performance, highly desirable in order to build assembled architecture.
At present, the reinforced concrete floor of domestic employing has cast-in-situ floor and precast hollow slab floor, cast-in-situ floor good integrity, but needs on-the-spot formwork, then casting concrete, construction period difficulty is big, and template loss is big, and cost is high, and prefabricated building cored slab does not need on-the-spot formwork, short construction period, cost is low, is therefore widely used in all kinds of building.
Such as, being: in the application documents of CN201320705360.2 disclose a kind of full prefabricated hollow floor at number of patent application, including floor main body, floor main body includes bottom, hollow device and top layer, is hollow device between bottom and top layer；The baseplate reinforcing bar that bottom is concrete layer and top colligation thereof is constituted；Top layer is roof steel bar, and casting concrete layer is constituted.This full prefabricated hollow floor is owing to forming cavity at intralaminar part, alleviate the weight of floor self, compare laminated floor slab and it is not necessary to second pouring, environmental protection and save the duration, but in the manufacturing process of this floor, needing colligation baseplate reinforcing bar and roof steel bar, efficiency of construction is relatively low, and the quality of prefabricated hollow floor is also difficult to ensure that.
Utility model content
The technical problems to be solved in the utility model is: provide a kind of precast hollow slab, and it can improve efficiency and the quality that precast hollow slab makes.
Solution of the present utility model is achieved in that a kind of precast hollow slab, including top layer and bottom, and it is arranged on the hollow device between top layer and bottom, described precast hollow slab also includes the rack of precast hollow slab, the rack of described precast hollow slab includes the mesh sheet that two relative spacings are arranged, at least one and the vertically disposed rib of mesh sheet it is provided with between two mesh sheet, being provided with cross-brace plate or support column or supporting lug in the inner chamber of described hollow device, described hollow device is arranged between said two mesh sheet.nullSo，Because being provided with hollow device between the top layer and bottom of precast hollow slab，When hollow device is through hollow pipe，It is embedded in precast hollow slab as non-core-drawing pore-creating component，Precast hollow slab can in precast hollow board forming die one-time cast-forming，When hollow pipe is applied in precast hollow slab，Its end is through，If also arranging support in hollow pipe to loose core mould，After concrete casting complete，Mould of support being loosed core is extracted out，Hollow pipe pipe thickness can be greatly lowered，Without causing that hollow pipe deforms，And then，It is not result in the uneven situation of precast hollow slab hole wall to occur，Similarly，If hollow pipe tube wall rigidity is enough to support concrete cast load，Then need not arrange support to loose core mould，The uniform effect of cored slab hole wall can also be reached，In addition，After being provided with at least one and the vertically disposed rib of mesh sheet between two mesh sheet，Rib improves the globality of rack，Make it when being mounted in precast hollow board forming die，Not easily swinging deformation，After described rack is applied in precast hollow slab，Because it is two-sided mesh sheet rack，Precast hollow slab biside plate volume property is uniform，It is especially suitable for use as exterior wall，As adopted the mesh sheet of asymmetric diameter，Then can according to mechanical property，Thick gusset face is placed in bottom，Thus can use as floor，As rib adopts band steel or steel plate or reinforcing bar to replace，Define the dark close rib xoncrete structure of reinforcing bar，The weight bearing power of floor can be increased substantially，Improve the safety coefficient of plate body，And in the inner chamber of body, it is provided with cross-brace plate or support column or supporting lug，Hollow pipe is served good supporting role，Even if its pipe thickness is very thin，It also is able to meet support cast-in-place concrete and builds the requirement of load，Need not arrange in hollow pipe and support the effect that mould of loosing core can also reach to prevent hollow pipe from deforming，As also set up on hollow pipe inwall and cross-brace plate or support column or the integrated small convex rib of supporting lug，Then can improve the rigidity of tube wall further，Prevent it from deforming when casting concrete.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described rib is reinforcing bar or the steel wire that continuous bending waviness or continuous bending become W shape.So, when rib is reinforcing bar or the steel wire that continuous bending waviness or continuous bending become W shape, rib has good seriality, and processing technique is simple, it is easy to popularization and application.
Another technical scheme of the present utility model is in that on above-mentioned basis, and the connection between described rib bending part and mesh sheet is for being welded to connect.So, after being welded to connect between rib bending part and mesh sheet, rib and mesh sheet define entirety, improve the non-deformability of mesh sheet, it is made to be unlikely to deform in application process, meanwhile, after being applied in precast hollow slab, precast hollow slab biside plate face can be connected into entirety by rib so that it is not easily misplace deformation.
Another technical scheme of the present utility model is in that on above-mentioned basis, and the opposite side bending part of described rib is provided with at least one dowel, and rib is connected into mesh sheet at bending part by described dowel.So, the opposite side bending part at rib is provided with at least one dowel, and dowel is after rib is connected into mesh sheet by bending part, and rib is in same plane, the non-deformability of rib is greatly improved so that it is be unlikely to deform in application process.
Another technical scheme of the present utility model is in that, on above-mentioned basis, to be provided with oblique pull reinforcing bar in described mesh sheet.So, being provided with oblique pull reinforcing bar in mesh sheet, the bulk strength of mesh sheet obtains reinforcement, and after applying to precast hollow slab, oblique pull reinforcing bar can increase substantially the shear resistance in precast hollow slab plate face, it is possible to reduce its thickness further.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described at least one end of oblique pull reinforcing bar is provided with hanging built-in fitting.So, it is provided with hanging built-in fitting oblique pull is end reinforced, it is possible to facilitate burying underground of suspender member in precast hollow slab, the load-bearing load of suspender member can be improved so that it is be hardly damaged in handling process.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described mesh sheet is provided with locating part, and described locating part is that rib portions protrudes formation.So, rib mesh sheet is provided with locating part, described locating part is that rib portions protrudes formation, in the manufacturing process of precast hollow slab, pore-forming pipe clamp can be located in adjacent rib by locating part, it is ensured that pore-forming pipe is in design attitude, thus ensureing that the thickness of floor and rib position in floor are accurate, and, so protrude, by rib portions, the mode formed and can be separately provided locating part, reduce cost and technology difficulty.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described mesh sheet is provided with locating part, and described locating part is that mesh sheet reinforcing bar part protrudes formation.So, mesh sheet is provided with locating part, described locating part is that mesh sheet reinforcing bar part protrudes formation, in the manufacturing process of precast hollow slab, rack can be arranged in precast hollow board forming die by locating part, it is ensured that it is accurate that rack is in design attitude, and, the mode so protruded by mesh sheet reinforcing bar part can be separately provided locating part, reduces cost and technology difficulty.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described mesh sheet is double-deck mesh sheet.So, when mesh sheet is double-deck mesh sheet in rack, can further improve the globality of rack, it is prevented that it is deformed damaged in installing application process.
Another technical scheme of the present utility model is in that on above-mentioned basis, is provided with heat insulation layer in described double-deck mesh sheet.So, when double-deck mesh sheet is provided with heat insulation layer, heat insulation layer can firmly be clamped by double-deck mesh sheet, prevent it from shifting in precast hollow slab casting process, the tight continuously of heat insulation layer can be fully ensured that, after described rack is applied to precast hollow slab, it is possible to significantly promote its thermal and insulating performance.
Another technical scheme of the present utility model is in that on above-mentioned basis, is provided with pipeline in described double-deck mesh sheet.So, after being provided with pipeline in double-deck mesh sheet, the pre-buried of wireway can be completed, it is prevented that its displacement.
Another technical scheme of the present utility model is in that, on above-mentioned basis, described pipe end is provided with rosette.So, when pipe end is provided with rosette, it is possible to disposable to complete wireway pre-buried, facilitates construction application, it is not necessary to secondary fluting buried pipeline, be conducive to keeping the globality of precast hollow slab.
Another technical scheme of the present utility model is in that, on above-mentioned basis, described mesh sheet to be provided with pipeline.So, after mesh sheet is provided with pipeline, the pre-buried of wireway can be completed, it is prevented that its displacement.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described hollow device is be arranged on to bury core pore-forming pipe between two mesh sheet.So, described hollow device is be arranged on to bury core pore-forming pipe between two mesh sheet, so can be fabricated to cored slab, and core pore-forming pipe will be buried and be arranged between two mesh sheet, it is possible to prevent in the manufacturing process of cored slab, buries core pore-forming pipe and position skew occurs, thus being difficult to control to the thickness of top board and base plate, cause that the situation that cored slab internal structure and design structure do not correspond occurs, affect the quality of cored slab.
Another technical scheme of the present utility model is in that on above-mentioned basis, described in bury core pore-forming pipe and include body, described body is through hollow pipe, is provided with cross-brace plate or support column or supporting lug in the inner chamber of body.So, when body is through hollow pipe, when hollow pipe is applied in precast hollow slab, its end is through, if also arranging support in hollow pipe to loose core mould, after concrete casting complete, mould of support being loosed core is extracted out, so, pore-forming tube wall thickness can be greatly lowered, without causing that pore-forming pipe deforms, and then, it is not result in the uneven situation of precast hollow slab hole wall and occurs.Similarly, if hollow pipe tube wall rigidity is enough to support concrete cast load, then support need not be set and loose core mould, it is also possible to reach the uniform effect of cored slab hole wall.Additionally, the inner chamber of body is provided with cross-brace plate or support column or supporting lug, hollow pipe is served good supporting role, even if its pipe thickness is very thin, it also is able to meet support cast-in-place concrete and builds the requirement of load, need not arrange in hollow pipe and support the effect that mould of loosing core can also reach to prevent hollow pipe from deforming, as also set up on hollow pipe inwall and cross-brace plate or support column or the integrated small convex rib of supporting lug, then can improve the rigidity of tube wall further, it is prevented that it deforms when casting concrete.
Another technical scheme of the present utility model is in that on above-mentioned basis, and outer surface of tube body is provided with at least one fin, and described fin is longitudinally disposed at tube surfaces.So, outer surface at body is additionally provided with fin, in the process making precast hollow slab, fin can play support positioning action, prevent the situation that hollow pipe causes that at mould internal shift cored slab internal structure and design structure do not correspond from occurring, fully ensure that the quality of precast hollow slab, if the position of fin is arranged on two pore-forming pipes, and when being close to arranged adjacent, many empty ribs can also be formed in precast hollow slab, advantageously reduce concrete heat bridge, improve the heat-proof quality of precast hollow slab.Additionally, described fin is longitudinally disposed at tube surfaces, in the process making precast hollow slab, fin supports with precast hollow board forming die die face and combines, then can play support positioning action, prevent the situation that hollow pipe causes that at mould internal shift cored slab internal structure and design structure do not correspond from occurring, fully ensure that the quality of precast hollow slab, if and the position of fin is arranged on two pore-forming pipes, and when being close to arranged adjacent, many empty ribs can also be formed in precast hollow slab, advantageously reduce concrete heat bridge, improve the heat-proof quality of precast hollow slab.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described body cross section is rectangle.So, when body cross section is rectangle, after described pore-forming pipe is applied in precast hollow slab, correspondingly can be internally formed through rectangle duct at cored slab, cross section is the hollow rate that the pore-forming pipe of rectangle can increase substantially precast hollow slab, saves material, reduces precast hollow slab own wt.
Another technical scheme of the present utility model is in that, on above-mentioned basis, described tube wall to be provided with at least one transverse concave groove.So, when tube wall is provided with at least one transverse concave groove, transverse concave groove improves the lateral bearing capacity of pore-forming pipe, it is made to be unlikely to deform in application process, simultaneously, cast-in-place concrete also can form xoncrete structure in transverse concave groove, improves the bonding strength between two plate faces of precast hollow slab, it is prevented that its dislocation in lifting and installation process damages.
Another technical scheme of the present utility model is in that, on above-mentioned basis, described body to be provided with at least one align member.So, when body is provided with at least one align member, described pore-forming pipe is in application process, align member can be supported on precast hollow board forming die, pore-forming pipe can be fixed in precast hollow board forming die, prevent from swinging around, can fully ensure that the thickness of precast hollow slab both sides plate body is consistent with design thickness.
Another technical scheme of the present utility model is in that, on above-mentioned basis, described fin to be provided with positioner.So, when fin is provided with positioner, in application process, positioner on described fin can coordinate screens to fix with reinforcing bar or steel wire, fin can play longitudinal bracing positioning action, prevent the situation that hollow pipe causes that at mould internal shift cored slab internal structure and design structure do not correspond from occurring, fully ensure that the quality of precast hollow slab.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described positioner is groove.So, when positioner is groove, in application process, positioner can be fixed with reinforcing bar or steel wire cooperation screens very easily and prevent the situation that hollow pipe causes that at mould internal shift cored slab internal structure and design structure do not correspond from occurring, has fully ensured that the quality of precast hollow slab.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described groove is the groove that the little endoporus of entrance is big.So, when groove is the groove that the little endoporus of entrance is big, in application process, reinforcing bar or steel wire snap in after in groove, in the process building cast-in-place concrete, the groove that the little endoporus of entrance is big can play the effect of snap close, so that reinforcing bar or steel wire are not easy to eject.
Another technical scheme of the present utility model is in that on above-mentioned basis, and at least one end of described body is provided with enclosing cover, and body is closed into blind pipe or closed hollow pipe by described enclosing cover.So, when at least one end of body is provided with enclosing cover, body is closed into blind pipe or closed hollow pipe by described enclosing cover, after described pore-forming pipe is applied in precast hollow slab, such as end also casting concrete, then can forming semiclosed or totally enclosed precast hollow slab, the globality of this precast hollow slab, sound-insulating heat-insulation property are good, in particular improve the bonding strength between two plate faces of precast hollow slab, it is prevented that its dislocation in lifting and installation process damages.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described enclosing cover end is provided with keeper, and described keeper is arranged at enclosing cover edge or cover bottom portion.So, when enclosing cover end is provided with keeper, described keeper is arranged at enclosing cover edge or cover bottom portion, in application process, pore-forming pipe can be fixed in the mould of precast hollow slab by keeper, prevent the situation that pore-forming tube end causes that at mould internal shift cored slab internal structure and design structure do not correspond from occurring, fully ensure that the quality of precast hollow slab.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described fin is arranged on two faces that body is relative.So, fin is arranged on two faces that body is relative, in application process, fin can be arranged at the reinforcing bar of its both sides or steel wire or precast hollow board forming die supports location, and after multiple pore-forming bank of tubes row, fin cooperates, it is possible to play the effect blocking molding, prevent the concrete of precast hollow slab both sides completely through, serve the effect reducing concrete heat bridge.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described fin is arranged on four faces of body.So, when fin is arranged on four faces of body, fin can be arranged at the reinforcing bar of its both sides or steel wire or precast hollow board forming die supports location, simultaneously, after multiple pore-forming bank of tubes row, fin cooperates, it is possible to play the effect blocking molding, prevent the concrete of precast hollow slab both sides completely through, serve the effect reducing concrete heat bridge.
Another technical scheme of the present utility model is in that on above-mentioned basis, and the material of described body is plastics, the fin global formation that described body and outer surface thereof are arranged.So, when the material of body is plastics, during the fin global formation that described body and outer surface thereof are arranged, pore-forming pipe is manufactured convenient and simple, and pipe thickness can strictly control, and, bonding strength between fin and body is good, it is not easy to damages and comes off, has fully ensured that the quality of pore-forming pipe.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described fin shifts to install on relative two faces of body.So, when fin shifts to install on relative two faces of body, in application process, after multiple pore-forming bank of tubes row, the fin shifted to install complements each other to form and blocks, it is possible to reduce producting process difficulty, advantageously reduces cost, improves efficiency.
Another technical scheme of the present utility model is in that, on above-mentioned basis, described body to be additionally provided with striker plate.So, it is possible to go out to be formed at body striker plate and strengthen plate or strengthen fin, improve the quality of pore-forming pipe further.
Another technical scheme of the present utility model is in that on above-mentioned basis, is provided with and multiple buries core pore-forming pipe between said two mesh sheet, described in bury docked by fin between core pore-forming pipe spacing.So, bury docked by fin between core pore-forming pipe spacing, in the process making precast hollow slab, fin can play support positioning action, prevent the situation that pore-forming pipe causes that at mould internal shift cored slab internal structure and design structure do not correspond from occurring, fully ensure that the quality of precast hollow slab, if the fin between adjacent pore-forming pipe is continuous print and is close to mutually or has part to overlap, then the pourable apleuria rack cored slab being fabricated between two plate bodys only be connected by skeleton.
Another technical scheme of the present utility model is in that on above-mentioned basis, and described top layer and/or bottom are concrete layer.So, structural strength situation when top layer and/or bottom are concrete layer, according to precast hollow slab, it is possible to select range of application flexibly, as used as Side fascia, heat-insulation wall plate, inner partition plate or floor.
Another technical scheme of the present utility model is in that on above-mentioned basis, described top layer and bottom separated or bury concrete connection through between core pore-forming pipe by adjacent.So, concrete connection through between core pore-forming pipe is buried when the separated of top layer and bottom or by adjacent, concrete heat bridge between the plate body of precast hollow slab both sides is reduced or cuts off, and improves the thermal and insulating performance of precast hollow slab, is particularly well-suited to do Side fascia and uses.
Another technical scheme of the present utility model is in that, on above-mentioned basis, to be provided with stiffener in described top layer and/or bottom.So, after being provided with stiffener in top layer and/or bottom, the local strength of precast hollow slab is greatly improved, occupation mode can be selected according to its mechanical property, as the plate face being provided with reinforcement being placed in bottom, then can use as floor, the amount of reinforcement of floor can be greatly lowered.
Accompanying drawing explanation
The accompanying drawing constituting a part of the present utility model is further appreciated by of the present utility model for providing, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model.
Fig. 1 is the rack cross section structure figure in the precast hollow slab that a kind of embodiment of this programme relates to；
Fig. 2 is the rack cross section structure figure in the precast hollow slab that this programme another kind embodiment relates to；
Fig. 3-Fig. 9 is provided with, on the rack in the precast hollow slab that the another several embodiments of this programme relate to, the structure chart burying core pore-forming pipe；
Figure 10 is the rack in the precast hollow slab that a kind of embodiment of this programme relates to and the assembling schematic diagram burying core pore-forming pipe being disposed thereon；
Figure 11 is the structural representation of the precast hollow slab that a kind of embodiment of this programme relates to；
Figure 12-Figure 14 is the structural representation of the precast hollow slab that the another several embodiments of this programme relate to.
In figure:
1 body 2 fin 20 positioner 3 transverse concave groove
4 enclosing cover 40 keeper 10 mesh sheet
11 rib 12 oblique pull reinforcing bar 100 guiding gutter 110 top layers
120 bottom 130 stiffener 6 cross-brace plate 9 packing materials
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model being described in detail, the description of this part is only exemplary and explanatory, and protection domain of the present utility model should not have any restriction effect.Additionally, the description that those skilled in the art are according to presents, it is possible to the feature in embodiment in presents and in different embodiment is carried out respective combination.
This utility model embodiment is as follows, refer to Fig. 3 to Figure 14, a kind of precast hollow slab, including top layer 110 and bottom 120, and it is arranged on the hollow device between top layer 110 and bottom 120, described precast hollow slab also includes the rack of precast hollow slab, the rack of described precast hollow slab includes the mesh sheet 10 that two relative spacings are arranged, at least one and the vertically disposed rib 11 of mesh sheet it is provided with between two mesh sheet 10, the inner chamber of described hollow device is provided with cross-brace plate 6 or support column or supporting lug, described hollow device is arranged between said two mesh sheet 10.nullSo，Because between top layer 110 and the bottom of precast hollow slab, 120 are provided with hollow device，When hollow device is through hollow pipe，It is embedded in precast hollow slab as non-core-drawing pore-creating component，Precast hollow slab can in precast hollow board forming die one-time cast-forming，When hollow pipe is applied in precast hollow slab，Its end is through，If also arranging support in hollow pipe to loose core mould，After concrete casting complete，Mould of support being loosed core is extracted out，Hollow pipe pipe thickness can be greatly lowered，Without causing that hollow pipe deforms，And then，It is not result in the uneven situation of precast hollow slab hole wall to occur，Similarly，If hollow pipe tube wall rigidity is enough to support concrete cast load，Then need not arrange support to loose core mould，The uniform effect of cored slab hole wall can also be reached，In addition，After being provided with at least one and the vertically disposed rib of mesh sheet between two mesh sheet，Rib improves the globality of rack，Make it when being mounted in precast hollow board forming die，Not easily swinging deformation，After described rack is applied in precast hollow slab，Because it is two-sided mesh sheet rack，Precast hollow slab biside plate volume property is uniform，It is especially suitable for use as exterior wall，As adopted the mesh sheet of asymmetric diameter，Then can according to mechanical property，Thick gusset face is placed in bottom，Thus can use as floor，As rib adopts band steel or steel plate or reinforcing bar to replace，Define the dark close rib xoncrete structure of reinforcing bar，The weight bearing power of floor can be increased substantially，Improve the safety coefficient of plate body，And in the inner chamber of body, it is provided with cross-brace plate 6 or support column or supporting lug，Hollow pipe is served good supporting role，Even if its pipe thickness is very thin，It also is able to meet support cast-in-place concrete and builds the requirement of load，Need not arrange in hollow pipe and support the effect that mould of loosing core can also reach to prevent hollow pipe from deforming，As also set up on hollow pipe inwall and cross-brace plate 6 or support column or the integrated small convex rib of supporting lug，Then can improve the rigidity of tube wall further，Prevent it from deforming when casting concrete.
On the basis of above-described embodiment, in another embodiment of this utility model, as depicted in figs. 1 and 2, described rib 11 can be reinforcing bar or the steel wire that continuous bending waviness or continuous bending become W shape.So, when rib 11 is reinforcing bar or the steel wire that continuous bending waviness or continuous bending become W shape, rib has good seriality, and processing technique is simple, it is easy to popularization and application.
On the basis of above-described embodiment, in another embodiment of this utility model, the connection between bending part and the mesh sheet 10 of described rib 11 can adopt and be welded to connect.So, after being welded to connect between rib 11 bending part and mesh sheet 10, rib 11 and mesh sheet 10 define entirety, improve the non-deformability of mesh sheet, it is made to be unlikely to deform in application process, meanwhile, after being applied in precast hollow slab, precast hollow slab biside plate face can be connected into entirety by rib 11 so that it is not easily misplace deformation.
On the basis of above-described embodiment, in another embodiment of this utility model, the opposite side bending part of described rib 11 can be provided with at least one dowel, and rib 11 is connected into mesh sheet 10 at bending part by described dowel.So, the opposite side bending part at rib 11 is provided with at least one dowel, and dowel is after rib 11 is connected into mesh sheet 10 by bending part, and rib is in same plane, the non-deformability of rib is greatly improved so that it is be unlikely to deform in application process.
On the basis of above-described embodiment, in another embodiment of this utility model, as in figure 2 it is shown, described mesh sheet 10 can be provided with oblique pull reinforcing bar 12.So, being provided with oblique pull reinforcing bar 12 in mesh sheet 10, the bulk strength of mesh sheet obtains reinforcement, and after applying to precast hollow slab, oblique pull reinforcing bar 12 can increase substantially the shear resistance in precast hollow slab plate face, it is possible to reduce its thickness further.
On the basis of above-described embodiment, in another embodiment of this utility model, described at least one end of oblique pull reinforcing bar 12 can be provided with hanging built-in fitting.So, oblique pull reinforcing bar 12 end is provided with hanging built-in fitting, it is possible to facilitate burying underground of suspender member in precast hollow slab, the load-bearing load of suspender member can be improved so that it is be hardly damaged in handling process.
On the basis of above-described embodiment, in another embodiment of this utility model, described mesh sheet 10 being also provided with locating part, described locating part can be that rib 11 part protrudes formation.So, rib mesh sheet 10 is provided with locating part, described locating part is that rib 11 part protrudes formation, in the manufacturing process of precast hollow slab, pore-forming pipe clamp can be located in adjacent rib by locating part, it is ensured that pore-forming pipe is in design attitude, thus ensureing that the thickness of floor and the rib 11 position in floor are accurate, and, so protrude, by rib 11 part, the mode formed and can be separately provided locating part, reduce cost and technology difficulty.
On the basis of above-described embodiment, in another embodiment of this utility model, described mesh sheet 10 being provided with locating part, described locating part can be that mesh sheet reinforcing bar part protrudes formation.So, mesh sheet 10 is provided with locating part, described locating part is that mesh sheet reinforcing bar part protrudes formation, in the manufacturing process of precast hollow slab, rack can be arranged in precast hollow board forming die by locating part, it is ensured that it is accurate that rack is in design attitude, and, the mode so protruded by mesh sheet reinforcing bar part can be separately provided locating part, reduces cost and technology difficulty.
On the basis of above-described embodiment, in another embodiment of this utility model, as in figure 2 it is shown, described mesh sheet 10 can be Double-level Reticulated sheet.So, when mesh sheet 10 is double-deck mesh sheet in rack, can further improve the globality of rack, it is prevented that it is deformed damaged in installing application process.
On the basis of above-described embodiment, in another embodiment of this utility model, as in figure 2 it is shown, described double-deck mesh sheet can be provided with heat insulation layer.So, when double-deck mesh sheet is provided with heat insulation layer, heat insulation layer can firmly be clamped by double-deck mesh sheet, prevent it from shifting in precast hollow slab casting process, the tight continuously of heat insulation layer can be fully ensured that, after described rack is applied to precast hollow slab, it is possible to significantly promote its thermal and insulating performance.
On the basis of above-described embodiment, in another embodiment of this utility model, described double-deck mesh sheet can be provided with pipeline.So, after being provided with pipeline in double-deck mesh sheet, the pre-buried of wireway can be completed, it is prevented that its displacement.
On the basis of above-described embodiment, in another embodiment of this utility model, described pipe end can be provided with rosette.So, when pipe end is provided with rosette, it is possible to disposable to complete wireway pre-buried, facilitates construction application, it is not necessary to secondary fluting buried pipeline, be conducive to keeping the globality of precast hollow slab.
On the basis of above-described embodiment, in another embodiment of this utility model, described mesh sheet 10 can be provided with pipeline.So, after mesh sheet 10 is provided with pipeline, the pre-buried of wireway can be completed, it is prevented that its displacement.
On the basis of above-described embodiment, in another embodiment of this utility model, described hollow device is be arranged on to bury core pore-forming pipe between two mesh sheet 10, described in bury core pore-forming pipe and interfix with mesh sheet 10.So, it is provided with between two mesh sheet 10 and buries core pore-forming pipe, so can be fabricated to cored slab, and core pore-forming pipe will be buried and interfix with mesh sheet 10, it is possible to prevent in the manufacturing process of cored slab, buries core pore-forming pipe and position skew occurs, thus being difficult to control to the thickness of top board and base plate, cause that the situation that cored slab internal structure and design structure do not correspond occurs, affect the quality of cored slab.
On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Figures 3 to 10, described in bury core pore-forming pipe and include body 1, described body 1 is through hollow pipe, and body 1 outer surface is provided with at least one fin 2.So, when body 1 is through hollow pipe, when hollow pipe is applied in precast hollow slab, its end is through, if also arranging support in hollow pipe to loose core mould, after concrete casting complete, mould of support being loosed core is extracted out, so, pore-forming tube wall thickness can be greatly lowered, without causing that pore-forming pipe deforms, and then, it is not result in the uneven situation of precast hollow slab hole wall and occurs.Similarly, if hollow pipe tube wall rigidity is enough to support concrete cast load, then support need not be set and loose core mould, it is also possible to reach the uniform effect of cored slab hole wall.Additionally, it is additionally provided with fin at the outer surface at body, in the process making precast hollow slab, fin can play support positioning action, prevent the situation that hollow pipe causes that at mould internal shift cored slab internal structure and design structure do not correspond from occurring, fully ensure that the quality of precast hollow slab, if the position of fin is arranged on two pore-forming pipes, and when being close to arranged adjacent, many empty ribs can also be formed in precast hollow slab, advantageously reduce concrete heat bridge, improve the heat-proof quality of precast hollow slab.
On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Fig. 3 to Fig. 9, described in bury core pore-forming pipe and include body, described body is through hollow pipe, is provided with cross-brace plate 6 or support column or supporting lug in the inner chamber of body.So, when body is through hollow pipe, when hollow pipe is applied in precast hollow slab, its end is through, if also arranging support in hollow pipe to loose core mould, after concrete casting complete, mould of support being loosed core is extracted out, so, pore-forming tube wall thickness can be greatly lowered, without causing that pore-forming pipe deforms, and then, it is not result in the uneven situation of precast hollow slab hole wall and occurs.Similarly, if hollow pipe tube wall rigidity is enough to support concrete cast load, then support need not be set and loose core mould, it is also possible to reach the uniform effect of cored slab hole wall.Additionally, the inner chamber of body is provided with cross-brace plate 6 or support column or supporting lug, hollow pipe is served good supporting role, even if its pipe thickness is very thin, it also is able to meet support cast-in-place concrete and builds the requirement of load, need not arrange in hollow pipe and support the effect that mould of loosing core can also reach to prevent hollow pipe from deforming, as also set up on hollow pipe inwall and cross-brace plate 6 or support column or the integrated small convex rib of supporting lug, then can improve the rigidity of tube wall further, it is prevented that it deforms when casting concrete.
On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Fig. 3 to Fig. 9, described fin 2 can be longitudinally disposed at body 1 surface.So, when fin 2 longitudinal separation spread configuration is in body 1 surface, in the process making precast hollow slab, fin supports with precast hollow board forming die die face and combines, then can play support positioning action, prevent the situation that hollow pipe causes that at mould internal shift cored slab internal structure and design structure do not correspond from occurring, fully ensure that the quality of precast hollow slab, if and the position of fin is arranged on two pore-forming pipes, and when being close to arranged adjacent, many empty ribs can also be formed in precast hollow slab, advantageously reduce concrete heat bridge, improve the heat-proof quality of precast hollow slab.
On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Figures 3 to 10, described body 1 cross section can be rectangle.So, when body 1 cross section is rectangle, after described pore-forming pipe is applied in precast hollow slab, correspondingly can be internally formed through rectangle duct at cored slab, cross section is the hollow rate that the pore-forming pipe of rectangle can increase substantially precast hollow slab, saves material, reduces precast hollow slab own wt.Certainly, in other designs, described body 1 cross section can also be circular or oval or other polygons etc., and these also belong to equivalent technologies and replace, and belong to the protection domain of this patent.
On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Figure 6, described body 1 outer wall can be provided with at least one transverse concave groove 3.So, when body 1 outer wall is provided with at least one transverse concave groove 3, transverse concave groove 3 improves the lateral bearing capacity of pore-forming pipe, it is made to be unlikely to deform in application process, simultaneously, cast-in-place concrete also can form xoncrete structure in transverse concave groove 3, improves the bonding strength between two plate faces of precast hollow slab, it is prevented that its dislocation in lifting and installation process damages.It addition, be also provided with guiding gutter 100 in one end of described body 1, so the hydrops between body can be discharged.
On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Figure 4 and Figure 5, described body 1 can be provided with at least one align member.So, when body 1 is provided with at least one align member, described pore-forming pipe is in application process, align member can be supported on precast hollow board forming die, pore-forming pipe can be fixed in precast hollow board forming die, prevent from swinging around, can fully ensure that the thickness of precast hollow slab both sides plate body is consistent with design thickness.
On the basis of above-described embodiment, in another embodiment of this utility model, as it is shown in fig. 7, described fin 2 can be provided with positioner 20.So, when fin 2 is provided with positioner 20, in application process, positioner 20 on described fin 2 can coordinate screens to fix with reinforcing bar or steel wire, fin 2 can play longitudinal bracing positioning action, prevent the situation that hollow pipe causes that at mould internal shift cored slab internal structure and design structure do not correspond from occurring, fully ensure that the quality of precast hollow slab.
On the basis of above-described embodiment, in another embodiment of this utility model, as it is shown in fig. 7, described positioner 20 can be groove.So, when positioner 20 is groove, in application process, positioner 20 can be fixed with reinforcing bar or steel wire cooperation screens very easily and prevent the situation that hollow pipe causes that at mould internal shift cored slab internal structure and design structure do not correspond from occurring, has fully ensured that the quality of precast hollow slab.
On the basis of above-described embodiment, in another embodiment of this utility model, described groove can be the groove that the little endoporus of entrance is big.So, when groove is the groove that the little endoporus of entrance is big, in application process, reinforcing bar or steel wire snap in after in groove, in the process building cast-in-place concrete, the groove that the little endoporus of entrance is big can play the effect of snap close, so that reinforcing bar or steel wire are not easy to eject.
On the basis of above-described embodiment, in another embodiment of this utility model, as it is shown in fig. 7, at least one end of described body 1 can be provided with enclosing cover 4, body 1 is closed into blind pipe or closed hollow pipe by described enclosing cover 4.So, when at least one end of body 1 is provided with enclosing cover 4, body 1 is closed into blind pipe or closed hollow pipe by described enclosing cover 4, after described pore-forming pipe is applied in precast hollow slab, such as end also casting concrete, then can forming semiclosed or totally enclosed precast hollow slab, the globality of this precast hollow slab, sound-insulating heat-insulation property are good, in particular improve the bonding strength between two plate faces of precast hollow slab, it is prevented that its dislocation in lifting and installation process damages.
On the basis of above-described embodiment, in another embodiment of this utility model, as it is shown in fig. 7, described enclosing cover 4 end can be provided with keeper 40, described keeper 40 is arranged at bottom enclosing cover 4 edge or enclosing cover 4.So, when enclosing cover 4 end is provided with keeper 40, described keeper 40 is arranged at bottom enclosing cover 4 edge or enclosing cover 4, in application process, pore-forming pipe can be fixed in the mould of precast hollow slab by keeper 40, prevent the situation that pore-forming tube end causes that at mould internal shift cored slab internal structure and design structure do not correspond from occurring, fully ensure that the quality of precast hollow slab.
On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Figure 3 and Figure 4, described fin 2 can be arranged on two faces that body 1 is relative.So, fin 2 is arranged on two faces that body 1 is relative, in application process, fin 2 can be arranged at the reinforcing bar of its both sides or steel wire or precast hollow board forming die supports location, and after multiple pore-forming bank of tubes row, fin 2 cooperates, it is possible to play the effect blocking molding, prevent the concrete of precast hollow slab both sides completely through, serve the effect reducing concrete heat bridge.
On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Figure 8 and Figure 9, described fin 2 can be arranged on four faces of body 1.So, when fin 2 is arranged on four faces of body 1, fin 2 can be arranged at the reinforcing bar of its both sides or steel wire or precast hollow board forming die supports location, simultaneously, after multiple pore-forming bank of tubes row, fin 2 cooperates, it is possible to play the effect blocking molding, prevent the concrete of precast hollow slab both sides completely through, serve the effect reducing concrete heat bridge.
On the basis of above-described embodiment, in another embodiment of this utility model, the material of described body 1 is plastics, fin 2 global formation that described body 1 and outer surface thereof are arranged.So, when the material of body 1 is plastics, during fin 2 global formation that described body 1 and outer surface thereof are arranged, pore-forming pipe is manufactured convenient and simple, pipe thickness can strictly control, and, the bonding strength between fin 2 and body 1 is good, it is not easy damage to come off, fully ensures that the quality of pore-forming pipe.
On the basis of above-described embodiment, in another embodiment of this utility model, as shown in figs. 5 and 9, described fin 2 shifts to install on relative two faces of body 1.So, when fin 2 shifts to install on relative two faces of body 1, in application process, after multiple pore-forming bank of tubes row, the fin 2 shifted to install complements each other to form and blocks, it is possible to reduce producting process difficulty, advantageously reduces cost, improves efficiency.
On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Figure 11 to 14, be provided with between said two mesh sheet 10 and multiple bury core pore-forming pipe, described in bury and dock spacing by fin 2 between core pore-forming pipe.So, bury docked by fin between core pore-forming pipe spacing, in the process making precast hollow slab, fin can play support positioning action, prevent the situation that pore-forming pipe causes that at mould internal shift cored slab internal structure and design structure do not correspond from occurring, fully ensure that the quality of precast hollow slab, if the fin between adjacent pore-forming pipe is continuous print and is close to mutually or has part to overlap, then the pourable apleuria rack cored slab being fabricated between two plate bodys only be connected by skeleton.
On the basis of above-described embodiment, in another embodiment of this utility model, as shown in Figure 11 to 14, described top layer 110 and/or bottom 120 can be concrete layer.So, when top layer 110 and/or bottom 120 are concrete layer, the structural strength situation according to precast hollow slab, it is possible to select range of application flexibly, as used as Side fascia, heat-insulation wall plate, inner partition plate or floor.
On the basis of above-described embodiment, in another embodiment of this utility model, as illustrated in figures 11 and 13, the separated setting of described top layer 110 and bottom 120.Or as shown in figures 12 and 14, between described top layer 110 and bottom 120, bury concrete connection through between core pore-forming pipe by adjacent.So, concrete connection through between core pore-forming pipe is buried when the separated of top layer 110 and bottom 120 or by adjacent, concrete heat bridge between the plate body of precast hollow slab both sides is reduced or cuts off, and improves the thermal and insulating performance of precast hollow slab, is particularly well-suited to do Side fascia and uses.
On the basis of above-described embodiment, in another embodiment of this utility model, as shown in figures 12 and 14, described top layer 110 and/or bottom 120 are provided with stiffener 130.So, after top layer 110 and/or bottom 120 are provided with stiffener 130, the local strength of precast hollow slab is greatly improved, occupation mode can be selected according to its mechanical property, as the plate face being provided with reinforcement being placed in bottom, then can use as floor, the amount of reinforcement of floor can be greatly lowered.It addition, as shown in Figure 13 and Figure 14, described in bury in core pore-forming pipe and be also provided with packing material 9.The inner chamber of body is partially or completely provided with packing material 9, the sound isolating and heat insulating performance of pore-forming pipe can be improved, as by packing material this as overall, then pore-forming pipe can also be played good supporting role, it is not necessary to arrange in hollow pipe support loose core mould also be able to meet support concrete cast load requirement.
The above is only preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, under the premise without departing from this utility model principle; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (34)
1. a precast hollow slab, including top layer and bottom, and it is arranged on the hollow device between top layer and bottom, it is characterized in that, described precast hollow slab also includes the rack of precast hollow slab, the rack of described precast hollow slab includes the mesh sheet that two relative spacings are arranged, at least one and the vertically disposed rib of mesh sheet it is provided with between two mesh sheet, being provided with cross-brace plate or support column or supporting lug in the inner chamber of described hollow device, described hollow device is arranged between said two mesh sheet.
2. precast hollow slab according to claim 1, it is characterised in that described rib is reinforcing bar or the steel wire that continuous bending waviness or continuous bending become W shape.
3. precast hollow slab according to claim 2, it is characterised in that the connection between side bending part and the mesh sheet of described rib is for being welded to connect.
4. precast hollow slab according to claim 3, it is characterised in that the opposite side bending part of described rib is provided with at least one dowel, and rib is connected into mesh sheet at bending part by described dowel.
5. the precast hollow slab according to any claim in Claims 1-4, it is characterised in that be provided with oblique pull reinforcing bar in described mesh sheet.
6. precast hollow slab according to claim 5, it is characterised in that described at least one end of oblique pull reinforcing bar is provided with hanging built-in fitting.
7. the precast hollow slab according to any claim in Claims 1-4, it is characterised in that be provided with locating part in described mesh sheet, described locating part is that rib portions protrudes formation.
8. the precast hollow slab according to any claim in Claims 1-4, it is characterised in that be provided with locating part in described mesh sheet, described locating part is that mesh sheet reinforcing bar part protrudes formation.
9. the precast hollow slab according to any claim in Claims 1-4, it is characterised in that described mesh sheet is double-deck mesh sheet.
10. precast hollow slab according to claim 9, it is characterised in that be provided with heat insulation layer in described double-deck mesh sheet.
11. precast hollow slab according to claim 9, it is characterised in that be provided with pipeline in described double-deck mesh sheet.
12. precast hollow slab according to claim 11, it is characterised in that described pipe end is provided with rosette.
13. precast hollow slab according to any one of claim 1 to 4, it is characterised in that be provided with pipeline in described mesh sheet.
14. precast hollow slab according to claim 13, it is characterised in that described pipe end is provided with rosette.
15. precast hollow slab according to any one of claim 1 to 4, it is characterised in that described hollow device is be arranged on to bury core pore-forming pipe between two mesh sheet.
16. precast hollow slab according to claim 15, it is characterised in that described in bury core pore-forming pipe and include body, described body is through hollow pipe, is provided with cross-brace plate or support column or supporting lug in the inner chamber of body.
17. precast hollow slab according to claim 16, it is characterised in that outer surface of tube body is provided with at least one fin, and described fin is longitudinally disposed at tube surfaces.
18. precast hollow slab according to claim 16, it is characterised in that described body cross section is rectangle.
19. precast hollow slab according to claim 18, it is characterised in that be provided with at least one transverse concave groove on described tube wall.
20. precast hollow slab according to claim 18, it is characterised in that be provided with at least one align member on described body.
21. precast hollow slab according to claim 17, it is characterised in that be provided with positioner on described fin.
22. precast hollow slab according to claim 21, it is characterised in that described positioner is groove.
23. precast hollow slab according to claim 22, it is characterised in that described groove is the groove that the little endoporus of entrance is big.
24. precast hollow slab according to claim 16, it is characterised in that at least one end of described body is provided with enclosing cover, body is closed into blind pipe or closed hollow pipe by described enclosing cover.
25. precast hollow slab according to claim 24, it is characterised in that described enclosing cover end is provided with keeper, and described keeper is arranged at enclosing cover edge or cover bottom portion.
26. precast hollow slab according to claim 17, it is characterised in that described fin is arranged on two faces that body is relative.
27. precast hollow slab according to claim 17, it is characterised in that described fin is arranged on four faces of body.
28. the fin global formation that precast hollow slab according to claim 16, it is characterised in that the material of described body is plastics, described body and outer surface thereof are arranged.
29. precast hollow slab according to claim 26, it is characterised in that described fin shifts to install on relative two faces of body.
30. precast hollow slab according to claim 16, it is characterised in that be additionally provided with striker plate on described body.
31. precast hollow slab according to claim 16, it is characterised in that be provided with between said two mesh sheet and multiple bury core pore-forming pipe, described in bury docked by fin between core pore-forming pipe spacing.
32. precast hollow slab according to claim 31, it is characterised in that described top layer and/or bottom are concrete layer.
33. precast hollow slab according to claim 32, it is characterised in that described top layer and bottom separated or bury concrete connection through between core pore-forming pipe by adjacent.
34. precast hollow slab according to claim 32, it is characterised in that be provided with stiffener in described top layer and/or bottom.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520772346.3U CN205369679U (en) | 2015-09-30 | 2015-09-30 | Prefabricated hollow slab |
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| CN201520772346.3U CN205369679U (en) | 2015-09-30 | 2015-09-30 | Prefabricated hollow slab |
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| CN205369679U true CN205369679U (en) | 2016-07-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109249516A (en) * | 2017-07-14 | 2019-01-22 | 北京中清恒业科技开发有限公司 | Prestressing force rolls over shape metal mesh concrete core slab and its manufacturing method |
| CN110584514A (en) * | 2019-09-25 | 2019-12-20 | 惠达卫浴股份有限公司 | Bathtub installation structure and installation method |
-
2015
- 2015-09-30 CN CN201520772346.3U patent/CN205369679U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109249516A (en) * | 2017-07-14 | 2019-01-22 | 北京中清恒业科技开发有限公司 | Prestressing force rolls over shape metal mesh concrete core slab and its manufacturing method |
| CN110584514A (en) * | 2019-09-25 | 2019-12-20 | 惠达卫浴股份有限公司 | Bathtub installation structure and installation method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CHINA MINGSHENG DRAWIN TECHNOLOGY INVESTMENT CO., LTD. Assignor: Zhong Minzhuyou Co., Ltd Contract record no.: 2017430000027 Denomination of utility model: Prefabricated hollow slab Granted publication date: 20160706 License type: Exclusive License Record date: 20171222 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: CHINA MINGSHENG DRAWIN TECHNOLOGY INVESTMENT CO., LTD. Assignor: Zhong Minzhuyou Co., Ltd Contract record no.: 2017430000027 Date of cancellation: 20180801 |
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| EC01 | Cancellation of recordation of patent licensing contract |