CN2534273Y - Cast-in-situ precast composite hollow reinforcing bar concrete floor - Google Patents

Abstract

A cast in situ prefabricated combined hollow steel skeleton concrete floor is composed of an exposed beam 28, a hidden beam 24, a main bearing steel bar 1, a structural steel bar 2, a concrete 3 and a hollow tubular structure 4 embedded in the steel bar and characterized in that the hollow tubular structure 4 is a prefabricated bidirectional hollow tubular structure 4 equipped with a horizontal stiffener 5; a stiffener positioned in the structure 4 combines with a cast in situ concrete longitudinal rib 6 to constitute a bidirectional multi ribbed network and is connected with the beam positioned between a wall and a column to form a steel skeleton beam multi ribbed structure; at the same time, the stiffener 5 cooperates with a superior flange 7 and an inferior flange 8 of the cast in situ concrete to form a longitudinal overlapped I shaped force bearing structure 9; a horizontal cast in situ I shaped force bearing structure 23, composted of the longitudinal rib 6, the superior flange 7 and the inferior flange 8, cooperates with the exposed beam 28 and the hidden beam 24 to constitute together a bidirectional prestressed force bearing structural system. The invention is suitable to be applied at a floor arranged at an industrial building, a civil building, a roof and a foundation mat. Moreover, the invention can be extended to a cast in situ concrete wall.

Description

A kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure

The utility model relates to a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure.

At present, in the prior art, hollow pipe component is generally paper tube, plastic pipe, metal bellows or cavity hard thin-wall members etc., and these hollow pipe components are used for superstructure and mainly consider to find time concrete, alleviate floor weight.Existing hollow reinforcing bar concrete superstructure, generally form by main stress reinforcing bar in the bright beam between wall column, dark beam, the plate, distributing bar, concrete, the hollow section that is preset in the reinforcing bar, the cross sectional shape of hollow pipe component can be circle, square or other is special-shaped, is provided with I shape reinforcing bar member in bright beam and dark beam.Hollowcore slab in this class superstructure 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 reinforcing bar concrete superstructure two direction rigidity great disparities bigger, and can't form the two-way superstructure of well word rib equivalence.This kind superstructure is as comparing with two-way ribbed slab floor, 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 sharp novel in-situ deposited concrete roof with prefabricated combined hollow steel structure for being badly in need of.

The purpose of this utility model is to provide a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure, and 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 utility model 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, constitute the prefabrication transverse two-way dark close rib net that dark rib and the vertically dark rib of cast-in-situ reinforced concrete join of putting more energy into, and is connected formation steel frame beam close rib structure with dark beam with bright beam between the wall column; 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 the upper and lower edge of a wing of cast-in-situ reinforced concrete longitudinal rib and cast-in-situ reinforced concrete constitutes, they constitute the structural system of bidirectional stress together jointly with bright beam and dark beam.Like this, two-way 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 the purpose of this utility model.

In addition, the utility model and common hollow building cover more also have following advantage:

1, improves the bearing capacity of two-way hollow building cover;

2, strengthen the rigidity of two-way hollow building cover;

3, reduce concrete shrinkage crack and raising crack resistance;

4, improve shock resistance.

Feature of the present utility model also is to be furnished with the reinforcing bar member in the cast-in-situ reinforced concrete longitudinal rib between two-way hollow pipe component, perhaps is furnished with the reinforcing bar member in the cast-in-situ reinforced concrete between two-way hollow pipe component two pipe ends simultaneously.

Feature of the present utility model is that also the reinforcing bar member also can be the shaped steel of shapes such as Z word, T word, cross, II.

Feature of the present utility model 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 utility model also be transverse stiffener the dew muscle, reveal net and stretch into firm welding in the reinforcing bar member in the cast-in-situ reinforced concrete between bright beam, dark beam, cast-in-place steel rib concrete longitudinal rib and the two-way hollow pipe component two ends, and connect with Cast-in-place concrete, reinforcing bar and bond, constitute the crisscross force structure of beam rib.

Feature of the present utility model 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 utility model 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 utility model also is the horizontal prefabricated stiffening rib in the two-way hollow pipe component on the wall limit, dark beam limit, post limit be bigger or identical, the hollowcore slab middle part is identical or diminish.

Feature of the present utility model 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 utility model 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 utility model 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 utility model 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 utility model 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 utility model 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 utility model also is two-way hollow pipe component its radial dimension along its length is that equate or variable.

Feature of the present utility model 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 utility model is that also two-way hollow pipe component can arrange two-layer, three layers or multilayer up and down.

Feature of the present utility model is that also two-way hollow pipe component is arranged vertically mutually in cassette ceiling.

Feature of the present utility model is that also the hollowcore slab lower prop on post limit does not have the cap of protrusion.

Feature of the present utility model 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 utility model 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 utility model is that also transverse stiffener can be steel bar concrete, fiber concrete, fibre mortar, polymer mortar or steel frame.

When feature of the present utility model 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 utility model 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 utility model 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 utility model.

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 that of the present utility model another implemented illustration.

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 that a two-way hollow pipe component 4 of reducing of the present utility model and an end have cross-shaped steel 26.

Figure 14 is an another enforcement illustration of the present utility model.

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 utility model docks situation and pipe end constructions schematic diagram in floor.

Figure 29 is that the utility model becomes the two-way hollow pipe component schematic diagram of diameter.

Figure 30 is that the utility model is out of shape two-way hollow pipe component schematic diagram.

Figure 31 is two-way hollow pipe component of the present utility model layered arrangement structural representation about in the of 4.

Figure 32 is that two-way hollow pipe component 4 of the present utility model is arranged vertically structural representation mutually.

Figure 33 be the user mode of the stiffening rib 2 of different reinforcing rib schemes of the present utility model pile up and cast-in-situ reinforced concrete longitudinal rib 6 in the schematic diagram of reinforcing bar members 26.

Figure 34, the 35th, the schematic diagram that two-way hollow pipe component 4 of the present utility model is helical bellows and fluted 15.

Below in conjunction with drawings and Examples the utility model is further described.

The utility model is shown in accompanying drawing 1-8, a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure, it is by the bright beam 28 between wall column, dark beam 24, main stress reinforcing bar 1 in the plate, distributing bar 2, concrete 3, the hollow pipe component 4 that is preset in the reinforcing bar is formed, 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, constitute the put more energy into two-way dark close rib net of dark rib 5 and vertically dark rib 6 handing-over of cast-in-situ reinforced concrete of prefabrication transverse, and is connected formation steel frame beam close rib structure with dark beam 24 with bright beam 28 between the wall column; 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 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 horizontal cast-in-place I-shaped force structure 23, be embedded with the reinforcing bar 26 that connects with prefabricated stiffening rib in the cast-in-place I-shaped structure, they constitute the structural system of bidirectional stress together jointly with bright beam 28 and dark beam 24.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 the purpose of this utility model.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 two-way dark close rib net; Fig. 1 reflected also simultaneously that this two-way dark close rib net is connected with dark beam 24 between the wall column and dark beam in the situation of reinforcing bar member 26 is arranged.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.

Feature of the present utility model also is to be furnished with reinforcing bar member 26 in the cast-in-situ reinforced concrete longitudinal rib 6 between two-way hollow pipe component 4, perhaps is furnished with reinforcing bar member 26 in the cast-in-situ reinforced concrete between 4 liang of pipe ends of two-way hollow pipe component simultaneously.Figure 33 is for there being the schematic diagram of reinforcing bar member 26 in cast-in-situ reinforced concrete longitudinal rib 6, Fig. 6 is for there being the situation of reinforcing bar member 26 in the Cast-in-place concrete between two-way hollow pipe component 4 two ends.

Feature of the present utility model is that also reinforcing bar member 26 also can be the shaped steel of shapes such as Z word, T word, cross, II.

Feature of the present utility model 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 utility model also be transverse stiffener 5 dew muscle 13, reveal net 14 and stretch into firm welding in the reinforcing bar member 26 in the cast-in-situ reinforced concrete between bright beam 28, dark beam 24, cast-in-place steel rib concrete longitudinal rib 6 and two-way hollow pipe component 4 two ends, and connect with Cast-in-place concrete, reinforcing bar and bond, constitute the crisscross force structure of beam rib.

Feature of the present utility model 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 the boundary dew muscle 13 glued or that stretch 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 utility model 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 utility model also is the horizontal prefabricated stiffening rib 5 in two-way hollow section 4 members on wall 17 limits, dark beam 24 limits, post 25 limits are bigger or identical, can be identical or diminish in the hollowcore slab middle part.As shown in Figure 9, for the schematic diagram of 2 of wall 26 and plates is bigger at the thickness near the stiffening rib 5 on wall 17 limits, less away from the thickness of the stiffening rib 5 on wall 17 limits.

Feature of the present utility model 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 utility model 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.Figure 14 is the schematic diagram between post 25, dark beam 24 and the plate.

Feature of the present utility model 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 utility model 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 utility model 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 utility model 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 utility model 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 utility model 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 utility model 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 utility model 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 utility model is that also the hollowcore slab lower prop on post 25 limits does not have the cap of protrusion.

Feature of the present utility model 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 utility model 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 utility model 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 utility model 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 utility model 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 utility model 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.

Claims (25)

1, a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure, it is by the bright beam 28 between wall column, dark beam 24, main stress reinforcing bar 1 in the plate, distributing bar 2, concrete 3, the hollow pipe component 4 that is preset in the reinforcing bar is formed, 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, constitute the put more energy into two-way dark close rib net of dark rib 5 and vertically dark rib 6 handing-over of cast-in-situ reinforced concrete of prefabrication transverse, and is connected formation steel frame beam close rib structure with dark beam 24 with bright beam 28 between the wall column; 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 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 horizontal cast-in-place I-shaped force structure 23, be embedded with the reinforcing bar 26 that connects with prefabricated stiffening rib in the cast-in-place I-shaped structure, they constitute the structural system of bidirectional stress together jointly with bright beam 28 and dark beam 24.

2, a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure according to claim 1, it is characterized in that being furnished with reinforcing bar member 26 in the cast-in-situ reinforced concrete longitudinal rib 6 between two-way hollow pipe component 4, perhaps be furnished with reinforcing bar member 26 in the cast-in-situ reinforced concrete between 4 liang of pipe ends of two-way hollow pipe component simultaneously.

3, a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure according to claim 2 is characterized in that reinforcing bar member 26 also can be the shaped steel of shapes such as Z word, T word, cross, II.

4, according to claim 1 or 2 described a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure, it is characterized in that containing 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.

5, a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure according to claim 4, it is characterized in that transverse stiffener 5 dew muscle 13, reveal net 14 and stretch into firm welding in the reinforcing bar member 26 in the cast-in-situ reinforced concrete between bright beam 28, dark beam 24, cast-in-place steel rib concrete longitudinal rib 6 and two-way hollow pipe component 4 two ends, and connect with Cast-in-place concrete, reinforcing bar and bond, constitute the crisscross force structure of beam rib.

6, a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure according to claim 4, it is characterized in that there is sinking partial groove 15 or whole groove 15 week at transverse stiffener 5 positions in the two-way hollow pipe component 4 along pipe, 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.

7, a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure according to claim 6, it is characterized in that putting down at the bottom of two-way hollow pipe component member 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 pipe stiffening rib 5 of two-way hollow unit 4 with two-way hollow pipe component both sides cast-in-situ reinforced concrete drawknot, constitute superimposed transverse stiffener 5.

8, a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure according to claim 4, the thickness, reinforcement ratio that it is characterized in that the horizontal prefabricated stiffening rib 5 in the two-way hollow pipe component 4 is bigger or identical at wall, dark beam limit, post limit, can be identical or diminishes in the hollowcore slab middle part.

9, according to claim 1 or 2 described a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure, it is characterized in that 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.

10, a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure according to claim 1 is characterized in that transverse stiffener 5 both sides can be provided with increase stiffening rib 5 rigidity of protrusion, the reinforcing rib 16 of intensity.

11, a kind of in-situ deposited plate concrete roof with prefabricated combined hollow steel bar structure according to claim 10, it is characterized in that 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.

12, a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure according to claim 1, it is characterized in that transverse stiffener 5 both sides are useful on the template 18 of stiffening rib 5 moulding in the pipe, 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.

13, a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure according to claim 1, it is characterized in that transverse stiffener 5, protruding expose the pipe 4 outer walls, can reveal it on muscle 13, dew net 14 stretch into Cast-in-place concrete 3, by being connected with reinforcing bar, form superimposed transverse stiffener 5 with Cast-in-place concrete is glued.

14, according to claim 1 or 2 described a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure, it is characterized in that 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, the other end is a plug 22.

15, according to claim 1 or 2 described a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure, the cross section that it is characterized in that two-way hollow pipe component 4 its radial dimension along its length is that equate or variable.

16, according to claim 1 or 2 described one one kinds of in-situ deposited concrete roof with prefabricated combined hollow steel structure, it is characterized in that two-way hollow pipe component 4 has anti-floating stationary positioned structure 20, they can be hook reinforcing bar, lacing wire or draw ring.

17,, it is characterized in that two-way hollow pipe component 4 can arrange two-layer, three layers or multilayer up and down according to claim 1 or 2 described a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure.

18,, it is characterized in that two-way hollow pipe component 4 is arranged vertically mutually in cassette ceiling according to claim 1 or 2 described a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure.

19,, it is characterized in that not having the cap that protrudes at the hollowcore slab lower prop 25 on post 25 limits according to claim 1 or 2 described a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure.

20, according to claim 1 or 2 described a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure, it is characterized in that the body of two-way hollow pipe component 4 and transverse stiffener 5 can be same materials, also can be different materials.

21, a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure according to claim 20, the body that it is characterized in that two-way hollow pipe component 4 are 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.

22, a kind of in-situ deposited plate concrete roof with prefabricated combined hollow steel bar structure according to claim 19 is characterized in that transverse stiffener 5 can be steel bar concrete, fiber concrete, fibre mortar, polymer mortar or steel frame.

23, a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure according to claim 19, when it is characterized in that transverse stiffener 5 for steel bar concrete or plain concrete, its proportioning of concrete is 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%.

24, a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure according to claim 19, when it is characterized in that transverse stiffener 5 for the wire mesh mortar moulding, the mortar proportioning is cement 30-35%, silica flour 2-6%, sand 60%-80%, UEA expansion agent 8-12%, mix the efficient composite water-reducing agent 0.5-0.8% of SD outward, polypropylene emulsion 1-3%, early strength admixture 1-2%.

25, according to claim 1 or 2 described a kind of in-situ deposited concrete roof with prefabricated combined hollow steel structure, the hollow part 21 that it is characterized in that 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.

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