A kind of in-situ deposited hollow concrete floorslab with prefabricated combined steel bar structure
The present invention relates to a kind of in-situ deposited hollow concrete floorslab with prefabricated combined steel bar structure.
At present, in the prior art, it is permanent core that the non-knockout-core pore-creating cast-in-situ cassette ceiling becomes pole, and as paper tube, plastic pipe, metal bellows, core light material etc., these tubular core molds or member mainly consider to find time concrete, alleviate floor weight.The patent No. of being applied for by applicant Qiu Zeyou is 99249756.6 the cavity hard thin-wall members formula that presets cast-in-situ reinforcing steel bar concrete hollow slab at home, it is made up of reinforcing bar, concrete, the cavity hard thin-wall members that is preset in the reinforcing bar, and the cross sectional shape of cavity hard thin-wall members can be circle, square or other is special-shaped.Its essence of this kind hollowcore slab also is that a kind of hollow pipe component is preset in the reinforced concrete hollow slab, and concrete and the weight that alleviates floor mainly play a part to find time.This class hollowcore slab is owing to the concrete in the plate is found time by hollow pipe component, in the outside Cast-in-place concrete rib is arranged vertically along pipe, laterally then there be not Force transmission parts, or only have prevent that wet concrete and cement paste from entering two seal plug, cause the effect that to bear complicated pulling force, pressure, shearing, flush shear force, moment of torsion etc. in the pipe of existing non-core-drawing pore-creating, make cast-in-place hollow slab two direction rigidity great disparities bigger, can only form one-way slabs, and can't form well word rib equivalent transverse and longitudinal.This kind plate is as comparing with two-way multi-ribbed plate, then exist hollowcore slab thickness big, the steel bar concrete consumption is big, and from great, deflection deformation is big, shearing resistance, torsional property are poor, Cast-in-place concrete weakness easy crack in bottom flange on the hollow section, shock resistance is poor, and two-way stiffness difference is big, the pipe cracky, the Cast-in-place concrete leakage loss is big, problems such as cost height.Therefore develop a kind of novel in-situ deposited hollow concrete floorslab with prefabricated combined steel bar structure for being badly in need of.
The object of the present invention is to provide a kind of in-situ deposited hollow concrete floorslab with prefabricated combined steel bar structure, it is little to have hollowcore slab thickness, and the steel bar concrete consumption is little, and is in light weight, deflection deformation is little, and the shearing resistance torsional property is strong, is difficult for the crack, characteristics such as bidirectional stress power transmission difference is little, and shock resistance is strong, and cost is low.
Solution of the present invention is that hollow pipe component is the two-way hollow pipe component of prefabricated band transverse stiffener, transverse stiffener in the two-way hollow pipe component combines with the cast-in-situ reinforced concrete longitudinal rib, constitutes the prefabrication transverse two-way dark close rib hollowcore slab that dark rib and the vertically dark rib of cast-in-situ reinforced concrete join of putting more energy into; Simultaneously, the upper and lower edge of a wing of the cast-in-situ reinforced concrete that transverse stiffener in the two-way hollow pipe component and two-way hollow pipe component are upper and lower links for whole, constitutes superimposed longitudinally I-shaped force structure; The horizontal cast-in-place I-shaped force structure that constitutes with the upper and lower edge of a wing of cast-in-situ reinforced concrete longitudinal rib and cast-in-situ reinforced concrete constitutes two-way I-shaped stressed structural system.Two-way like this hollow pipe component is not only template, but also is primary structure member, has eliminated behind the hollow section pore-forming in the past the defective that no primary structure member and cracking resistance are constructed in the pipe, can prevent the structure technology disaster effectively.Characteristics such as it is little also to have hollowcore slab thickness simultaneously, and the steel bar concrete consumption is little, and is in light weight, and deflection deformation is little, and the shearing resistance torsional property is strong, is difficult for the crack, and bidirectional stress power transmission difference is little, and shock resistance is strong, and cost is low, thus reached purpose of the present invention.
Feature of the present invention also is to contain in the transverse stiffener in the two-way hollow pipe component reinforcing bar, steel mesh reinforcement, gauze wire cloth, fiber, fleece that strengthens usefulness or the combination that both are above, dew muscle, dew net that above-mentioned muscle, net can reveal behind muscle, dew net or the spreading stretch in the cast-in-situ reinforced concrete, reinforcing bar perhaps first and in the cast-in-situ reinforced concrete is connected, pour concrete firmly bonds and drawknot prefabrication transverse stiffening rib and Cast-in-place concrete and reinforcing bar again.
Feature of the present invention is that also there is sinking partial groove or whole groove week at the transverse stiffener position in the two-way hollow pipe component along pipe, Cast-in-place concrete stretches in the outer groove of two-way hollow pipe component, form the Cast-in-place concrete tenon or the Cast-in-place concrete fin that protrude, Cast-in-place concrete tenon or Cast-in-place concrete fin by interface agglutination or the dew muscle that stretches out with transverse stiffener, reveal net and be connected, constitute superimposed transverse stiffener with prefabrication transverse stiffening rib in the two-way hollow pipe component.
Feature of the present invention also is to put down at the bottom of two-way hollow pipe component pipe outer wall and the floor, the cast-in-situ reinforced concrete bottom flange is disconnected by two-way hollow pipe component at the bottom of two-way hollow pipe component, reinforcing bar and Cast-in-place concrete only pass the position of groove of stiffening rib of two-way hollow pipe component with two-way hollow pipe component both sides cast-in-situ reinforced concrete drawknot, constitute superimposed transverse stiffener.
The thickness, reinforcement ratio that feature of the present invention also is the horizontal prefabricated stiffening rib in the two-way hollow pipe component on the wall limit, dark beam limit, post limit, Ming Liang limit be bigger or identical, the hollowcore slab middle part is identical or diminish.
Feature of the present invention also be cassette ceiling beam limit, post limit, wall limit cast-in-place hollow concrete unit area reckon the actual amount after a discount the reckon the actual amount after a discount thickness of thickness more than or equal to concrete in the plate.
Feature of the present invention is that also the transverse stiffener both sides can be provided with the increase stiffening rib rigidity of protrusion, the reinforcing rib of intensity.
Feature of the present invention is that also transverse stiffener can be porose or atresia, porose formation plate muscle stiffening rib, pure muscle stiffening rib, plate hole stiffening rib, and atresia forms plate stiffening rib, plate muscle stiffening rib.
Feature of the present invention is that also the transverse stiffener both sides are useful on the template of stiffening rib moulding in the pipe, and template is dismountable or do not remove, and template of not tearing open and stiffening rib can constitute superimposed stiffening rib jointly; Template also can be prefabricated into one with body, constitutes stiffening rib forming mould chamber, and have the hole on the body of the empty die cavity between two templates, by pouring into concrete or steel bar concrete, constitutes superimposed stiffening rib with two templates.
Feature of the present invention also is transverse stiffener, and the protruding pipe outer wall that exposes can reveal muscle, reveal net and stretch into Cast-in-place concrete on it, by being connected with reinforcing bar with Cast-in-place concrete is glued, form superimposed transverse stiffener.
Feature of the present invention is that also two-way hollow pipe component two ends can be two plugs, also can be two stiffening ribs, can an end be stiffening rib also, and the other end is a plug.
The cross section that feature of the present invention also is two-way hollow pipe component its radial dimension along its length is that equate or variable.
Feature of the present invention is that also two-way hollow pipe component has anti-floating stationary positioned structure, and they can be hook reinforcing bar, lacing wire or draw ring.
Feature of the present invention is that also two-way hollow pipe component can arrange two-layer, three layers or multilayer up and down.
Feature of the present invention is that also two-way hollow pipe component is arranged vertically mutually in cassette ceiling.
Feature of the present invention is that also the body of two-way hollow pipe component and transverse stiffener can be same materials, also can be different materials.
Feature of the present invention is that also the body of two-way hollow pipe component is Cement fibre pipe, Cement fibre stringing, cement mortar fibre pipe, metal bellows, plastic film capicitor, plastic pipe, metal tube, cement steel wire webmaster, cement mortar steel wire tube, asbestos cement pipe or resin fibre pipe.
Feature of the present invention is that also transverse stiffener can be steel bar concrete, fiber concrete, fibre mortar, polymer mortar or steel frame.
When feature of the present invention was that also transverse stiffener is steel bar concrete or plain concrete, its proportioning of concrete was cement 20-35%, sand 30-60%, silica flour 1-5%, stone 40-70%, UEA expansion agent 8-15%, FDN high efficiency water reducing agent 0.8-1.2%, fiber 0.01-1%, early strength admixture 1-3%.
When feature of the present invention is that also transverse stiffener is the wire mesh mortar moulding, the mortar proportioning is cement 30-35%, and silica flour 2-6%, mixes the efficient composite water-reducing agent 0.5-0.8% of SD outward at sand 60%-80%, UEA expansion agent 8-12%, polypropylene emulsion 1-3%, early strength admixture 1-2%.
The hollow part that feature of the present invention also is two-way hollow pipe component is filling foamed plastics, expanded perlite, expanded vermiculite, foaming or aerated light concrete, rock wool, mineral wool etc. partly or entirely.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the local enlarged diagram of Fig. 1 .
Fig. 3 is Fig. 1
Local enlarged diagram.
Fig. 4 is the local enlarged diagram of Fig. 1 .
Fig. 5 is the 1-1 sectional view of Fig. 1.
Fig. 6 is Fig. 1
Local enlarged diagram.
Fig. 7 is the 2-2 sectional view of Fig. 1.
Fig. 8 is the 3-3 sectional view of Fig. 1.
Fig. 9 is another embodiment of the present invention figure.
Figure 10 is Fig. 9
Local enlarged diagram.
Figure 11 is Fig. 9
Local enlarged diagram.
Figure 12 is Fig. 9
Local enlarged diagram.
Figure 13 is the structural representation of the two-way hollow pipe component 4 of reducing of the present invention.
Figure 14 is another embodiment of the present invention figure.
Figure 15 is the 4-4 sectional view of Figure 14.
Figure 16 is the 5-5 sectional view of Figure 14.
Figure 17 is the 6-6 sectional view of Figure 14.
Figure 18,19,20,21,22,23 is the schematic diagram of the transverse stiffener 5 of different reinforcing rib schemes.
Figure 24 superimposed structural representation that is transverse stiffener 5 with presetting template 18.
Figure 25,26 is for pouring into the schematic diagram of steel bar concrete in prefabricated stiffening rib die cavity and the die cavity.
Figure 27, the 28th, two-way hollow pipe component 4 of the present invention docks situation and pipe end constructions schematic diagram in floor.
Figure 29 is that the present invention becomes the two-way hollow pipe component schematic diagram of diameter.
Figure 30 is that the present invention is out of shape two-way hollow pipe component schematic diagram.
Figure 31 is two-way hollow pipe component of the present invention layered arrangement structural representation about in the of 4.
Figure 32 is that two-way hollow pipe component 4 of the present invention is arranged vertically structural representation mutually.
Figure 33 is that the user mode of the stiffening rib 2 of different reinforcing rib schemes of the present invention is piled up schematic diagram.
Figure 34, the 35th, the schematic diagram that two-way hollow pipe component 4 of the present invention is helical bellows and fluted 15.
The present invention is further illustrated below in conjunction with drawings and Examples.
The present invention is shown in accompanying drawing 1-8, it is made up of main stress reinforcing bar 1, distributing bar 2, concrete 3, the hollow pipe component 4 that is preset in the reinforcing bar, the cross sectional shape of hollow pipe component 4 can be circle, square or other is special-shaped, it is characterized in that the two-way hollow pipe component 4 of hollow pipe component 4 for prefabricated band transverse stiffener 5, transverse stiffener 5 in the two-way hollow pipe component 4 combines with cast-in-situ reinforced concrete longitudinal rib 6, constitutes the put more energy into two-way dark close rib hollowcore slab of dark rib 5 and vertically dark rib 6 handing-over of cast-in-situ reinforced concrete of prefabrication transverse; Simultaneously, the upper and lower edge of a wing 7,8 of the cast-in-situ reinforced concrete that transverse stiffener in the two-way hollow pipe component 45 and two-way hollow pipe component 4 are upper and lower links for whole, constitutes superimposed longitudinally I-shaped force structure 9; The horizontal cast-in-place I-shaped force structure 23 that constitutes with the upper and lower edge of a wing 7,8 of cast-in-situ reinforced concrete longitudinal rib 6 and cast-in-situ reinforced concrete constitutes two-way I-shaped stressed structural system.Like this, two-way hollow pipe component 4 is not only template, but also is primary structure member, has eliminated behind the hollow section pore-forming in the past the defective that no primary structure member and cracking resistance are constructed in the pipe, can prevent the structure technology disaster effectively.Characteristics such as it is little also to have hollowcore slab thickness simultaneously, and the steel bar concrete consumption is little, and is in light weight, and deflection deformation is little, and the shearing resistance torsional property is strong, is difficult for the crack, and bidirectional stress power transmission difference is little, and shock resistance is strong, and cost is low, thus reached purpose of the present invention.The center line horizontal profile of the two-way hollow pipe component 4 among Fig. 1, Figure 32 has reflected that transverse stiffener 5 combines with cast-in-situ reinforced concrete longitudinal rib 6, constitutes the schematic diagram of two-way dark close rib.Fig. 2,3,4 has reflected that the upper and lower edge of a wing 7,8 of the cast-in-situ reinforced concrete that transverse stiffener 5 and two-way hollow pipe component 4 are upper and lower links for whole, constitutes the situation of superimposed longitudinally I-shaped force structure 9.Fig. 5,7,8 has reflected the situation of cast-in-situ reinforced concrete longitudinal rib 6 with the horizontal I-shaped force structure 23 of the upper and lower edge of a wing 7,8 formations of cast-in-situ reinforced concrete, and The combined constitutes two-way I-shaped force structure system.Fig. 6 is two contact schematic diagrames that two-way hollow pipe component 4 is arranged in plate.
Feature of the present invention also is to contain in the transverse stiffener 5 in the two-way hollow pipe component 4 reinforcing bar 10, steel mesh reinforcement 11, gauze wire cloth 12, fiber, fleece that strengthens usefulness or the combination that both are above, dew muscle 13, dew net 14 that above-mentioned muscle, net can reveal behind muscle 13, dew net 14 or the spreading stretch in the cast-in-situ reinforced concrete, reinforcing bar perhaps first and in the cast-in-situ reinforced concrete is connected, pour concrete firmly bonds and drawknot prefabrication transverse stiffening rib 5 and Cast-in-place concrete 3 and reinforcing bar 1,2 again.Fig. 2,3,4,6 stretches in the cast-in-situ reinforced concrete for the reinforcing bar in the transverse stiffener 5 has the muscle 13 of revealing, and is connected with reinforcing bar in the steel bar concrete.
Feature of the present invention is that also there are partial groove 15 or whole groove 15 in transverse stiffener 5 positions in the two-way hollow pipe component 4 along the sinking of pipe week, Cast-in-place concrete stretches in two-way hollow pipe component 4 groove 15 outward, form the Cast-in-place concrete tenon or the Cast-in-place concrete fin that protrude, Cast-in-place concrete tenon or Cast-in-place concrete fin by interface agglutination or the dew muscle 13 that stretches out with transverse stiffener 5, reveal net 14 and be connected, with the superimposed transverse stiffener 5 of prefabrication transverse stiffening rib 5 formations in the two-way hollow pipe component 4.Figure 4 shows that transverse stiffener 5 positions in the two-way hollow section 4 are fluted 15 along sinking in pipe week, the upper and lower edge of a wing 7,8 of Cast-in-place concrete is stretched in the outer groove of two-way hollow section 15 and is formed the Cast-in-place concrete fins, constitutes superimposed transverse stiffener 5 with prefabrication transverse stiffening rib 5.Figure 34, the 35th, two-way hollow pipe component 4 are the schematic diagram of screw type corrugated pipe and fluted 15.
The present invention is shown in Figure 11,12, its feature also is to put down at the bottom of two-way hollow pipe component 4 pipe outer walls and the floor, cast-in-situ reinforced concrete bottom flange 8 was disconnected by two-way hollow pipe component 4 at 4 ends of two-way hollow pipe component, reinforcing bar 1 and Cast-in-place concrete 3 only pass the position of groove 15 of stiffening rib 5 of two-way hollow pipe component 4 with two-way hollow pipe component both sides cast-in-situ reinforced concrete drawknot, constitute superimposed transverse stiffener 5.Figure 10 is the structural representation of inverted T-shaped for the cross section of transverse stiffener 5; Figure 11 is last flat recessed structural representation for the cross section of prefabricated transverse stiffener 5; To be that the cross section of prefabricated transverse stiffener 5 is upper and lower be the structural representation of different grooves 15 to Figure 12.
The thickness, reinforcement ratio that feature of the present invention also is the horizontal prefabricated stiffening rib 5 in two-way hollow section 4 members on the wall limit, dark beam limit, post limit, Ming Liang limit be bigger or identical, can be identical or diminish in the hollowcore slab middle part.As shown in Figure 9, bigger at thickness near the stiffening rib 5 on post limit, less away from the thickness of the stiffening rib 5 on post limit.
Feature of the present invention also be cassette ceiling beam limit, post limit, wall limit cast-in-place hollow concrete unit area reckon the actual amount after a discount the reckon the actual amount after a discount thickness of thickness more than or equal to concrete in the plate.As shown in figure 13, left end is near beam limit, post limit, wall limit end, and the thickness of reckoning the actual amount after a discount of cast-in-place hollow concrete unit area is successively and reduces from left to right.
Feature of the present invention is that also transverse stiffener 5 both sides can be provided with increase stiffening rib 5 rigidity of protrusion, the reinforcing rib 16 of intensity.Shown in Figure 14,15,16,17, transverse stiffener 5 both sides are provided with reinforcing rib 16.
Feature of the present invention is that also transverse stiffener 5 can be porose 17 or atresia, porose 17 formation plate muscle stiffening rib, pure muscle stiffening rib, plate hole stiffening rib, the formation plate stiffening rib of atresia, plate muscle stiffening rib.Figure 15 is a plate muscle stiffening rib, and Figure 18,21 is pure muscle stiffening rib, and Figure 19,20 is the plate stiffening rib.Figure 16,17,22,23 is a plate muscle stiffening rib.
Feature of the present invention is that also transverse stiffener 5 both sides are useful on the template 18 of stiffening rib 5 moulding in the pipe, and template 18 is dismountable or do not remove, and template 18 and the stiffening rib 5 do not torn open can constitute superimposed stiffening rib jointly; Template 18 also can be prefabricated into one with body 4, constitutes stiffening rib 5 forming mould chambeies 19, and have the hole on the body 4 of the empty die cavity 19 between two templates 18, by pouring into concrete or steel bar concrete, constitutes superimposed stiffening rib with two templates 18.Figure 24 is template 18 and the superimposed stiffening rib 5 of stiffening rib 5 common formations, and Figure 25,26 is for pouring into the schematic diagram of steel bar concrete in prefabricated stiffening rib die cavity 19 and the die cavity 19.
Feature of the present invention also is transverse stiffener 5, and protruding pipe 4 outer walls that expose can reveal muscle 13, reveal net 14 and stretch into Cast-in-place concrete 3 it on, by being connected with reinforcing bar with the Cast-in-place concrete gluing, form superimposed transverse stiffener 5.Fig. 8 is transverse stiffener 5 protruding pipe 4 outer walls that expose, and its cross section is circle rib pipe; Figure 13 is the situation that the transverse stiffener 5 of the two-way hollow pipe component 4 of reducing protrudes outer wall.
Feature of the present invention is that also two-way hollow pipe component 4 two ends can be two plugs 22, also can be two stiffening ribs 5, can an end be stiffening rib 5 also, and the other end is a plug 22.Figure 27,28 is for two-way hollow pipe component 4 one ends are stiffening rib 5, and the other end is the situation of plug 22.Figure 27 two pipe butt joints leave certain width and water concrete, with pipe end stiffening rib 5 common formation transverse stiffeners 5; Figure 28 two pipe butt joints are near not spacing.
The cross section that feature of the present invention also is two-way hollow pipe component 4 its radial dimension along its length is that equate or variable.Figure 13, the 29th, the two-way hollow pipe component of reducing, Figure 30 are the two-way hollow pipe components of distortion.
Feature of the present invention is that also two-way hollow pipe component 4 has anti-floating stationary positioned structure 20, and they can be hook reinforcing bar, lacing wire or draw ring.Figure 17,20 locating structure are the draw ring structure.
Feature of the present invention is that also two-way hollow pipe component 4 can arrange two-layer, three layers or multilayer up and down.Figure 31 is 4 fens two-layer layouts of two-way hollow pipe component.
The present invention shown in figure 32, its feature is that also two-way hollow pipe component 4 is arranged vertically mutually in cassette ceiling.
Feature of the present invention is that also the body of two-way hollow pipe component 4 and transverse stiffener 5 can be same materials, also can be different materials.
Feature of the present invention is that also the body of two-way hollow pipe component 4 is Cement fibre pipe, Cement fibre stringing, cement mortar fibre pipe, metal bellows, plastic film capicitor, plastic pipe, metal tube, cement steel wire webmaster, cement mortar steel wire tube, asbestos cement pipe or resin fibre pipe.
Feature of the present invention is that also transverse stiffener 5 can be steel bar concrete, fiber concrete, fibre mortar, polymer mortar or steel frame.
When feature of the present invention also was transverse stiffener 5 for steel bar concrete or plain concrete, its proportioning of concrete was cement 20-35%, sand 30-60%, silica flour 1-5%, stone 40-70%, UEA expansion agent 8-15%, FDN high efficiency water reducing agent 0.8-1.2%, fiber 0.01-1%, early strength admixture 1-3%.
When feature of the present invention also is transverse stiffener 5 for the wire mesh mortar moulding, the mortar proportioning is cement 30-35%, and silica flour 2-6%, mixes the efficient composite water-reducing agent 0.5-0.8% of SD outward at sand 60%-80%, UEA expansion agent 8-12%, polypropylene emulsion 1-3%, early strength admixture 1-2%.
The hollow part 21 that feature of the present invention also is two-way hollow pipe component 4 is filling foamed plastics, expanded perlite, expanded vermiculite, foaming or aerated light concrete, rock wool, mineral wool etc. partly or entirely.