CN100588789C - Cast-in-situ reinforced concrete hollow slab - Google Patents

Abstract

Disclosed is a cast-in-situ reinforced-bar concrete hollow slab, which comprises a reinforced-bar concrete (1) and lightweight blank members (2), the lightweight blank members (2) are partly or whollyenclosed in the reinforced-bar concrete (1), characterized in that at least one opening (3) for cast-in-situ concrete casting in the lightweight blank members (2) penetrates the two surfaces of the lightweight blank members (2), the cast-in-situ concrete is poured into the opening (3) to form a concrete column (4), the invention can be applied to various cast-in-situ reinforced-bar concrete or prestressed reinforced-bar concrete hollow building roofings, house roofings, foundation slabs, walls, and hollow bridges.

Description

A kind of cast-in-situ reinforcing steel bar concrete hollow slab

The application for the applying date be that May 6, application number in 2003 are 200610004067.8, name is called the dividing an application of application for a patent for invention of " a kind of cast-in-situ reinforcing steel bar concrete hollow slab ".

(1) technical field

The present invention relates to a kind of cast-in-situ reinforcing steel bar concrete hollow slab.

(2) background technology

Arch without beam is that present Cast-in-place Concrete Building Floor is used wider floor structural form, have that speed of application is fast, structure height is little, advantages such as ceiling decoration can be cut apart and need not to room area flexibly, the lightening permanent loose tool of filling in it has various hollow sections and box, and box has hollow or solid.Is that ZL99232921.3, name are called " cast-in-place reinforced concrete filling thin wall cylinder " utility model patent as the applicant in the patent No. of application on March 10th, 1999, it is made up of horniness thin-walled tube and two plugs, is applied to use as the lightening permanent loose tool in the arch without beam.The beam army in Shijiazhuang City, Hebei Province city and for example, the patent No. in application on February 23rd, 2000 is that ZL00203695.9, name are called the formwork that uses in " combination concrete hidden rib floor structure " utility model patent, Instructions Page 2 the 5th walk to the 7th line description " formwork can be solid; also can be hollow; light materials such as available plant straw, glass fiber reinforced plastic, sheet iron plate, glass fibre cement are made; its profile can be made shapes such as rectangle, circle, polygon according to designing requirement; ", being applied to equally make up in the concrete hidden rib superstructure also is to use as the lightening permanent loose tool.But no matter be hollow section or box, after being applied to superstructure as permanent light base-die, formed superstructure comprises that steel bar concrete, light carcass, some or all of the wrapping up in of light carcass are contained in the steel bar concrete, the stressed Force transmission parts of no superstructure in its light carcass, particularly when the light base-die size is big, show more obvious.Therefore, develop a kind of novel cast-in-situ reinforcing steel bar concrete hollow slab, improve the mechanical property of superstructure, for being badly in need of.

(3) summary of the invention

The object of the present invention is to provide a kind of cast-in-situ reinforcing steel bar concrete hollow slab, its shearing resistance, torsional property improve greatly, have significantly improved the mechanical property of hollowcore slab, simultaneously, also have characteristics such as simple in structure, easy construction, cost be low.

Solution of the present invention is on the basis of existing technology, comprise steel bar concrete, light carcass, some or all of the wrapping up in of light carcass is contained in the steel bar concrete, it is characterized in that having in the light carcass at least one Cast-in-place concrete cast to run through two surfaces of light carcass with hole, Cast-in-place concrete is cast in the hole, form superimposed concrete post, the cross section of hole is circle or polygon or arc angle is polygonal or oval or cross, reinforcement is arranged in the light carcass, and reinforcement is at least one in stiffening rib or bracing boom or the reinforcing rib.Like this, owing on light carcass, there is the hole of Cast-in-place concrete cast usefulness to run through light carcass, Cast-in-place concrete enters in the hole, after treating setting and harden, superimposed concrete post or pier have been formed, thereby in loose tool, formed the stressed and Force transmission parts of hollowcore slab, improved the mechanical property of hollowcore slab greatly, particularly improved the shearing resistance of hollowcore slab greatly, antitorque mechanical property, simultaneously, also have simple in structure, easy construction, characteristics such as cost is low are applicable to the hollow building cover of various cast-in-situ reinforced concretes or prestressed reinforced concrete, roof system, sole plate, body of wall, hollow bridges is used, and is specially adapted to hollow arch without beam and uses.

Feature of the present invention also is described light carcass interval layout in Cast-in-place concrete, forms cast-in-place concrete hidden rib each other.Like this, have the dark close rib of many crisscross Cast-in-place concretes in the hollowcore slab, corresponding hollowcore slab is close rib hollowcore slab.

Feature of the present invention is also that described cast-in-place concrete hidden rib is orthogonal thereto, oblique or wrong the friendship are arranged.Like this, formed hollowcore slab structure can satisfy the structure needs of different occasions.

Feature of the present invention is that also the axis of described a plurality of holes in a plane or in Different Plane, intersects each other or grade separation or intersection or parallel, and that corresponding Cast-in-place concrete superposed column is each other is crossing, grade separation, intersect or be arranged in parallel.Like this, can design,, reduce and produce and construction cost to satisfy the needs of different units in charge of construction according to actual conditions.

Feature of the present invention is that also at least one end of described hole is a gradual change enlarging shape hole, corresponding formation Cast-in-place concrete distortion cap.Like this, can improve the Cast-in-place concrete post of formation in the hole or the stress of pier greatly, form arc-shaped transition around the corner, reduce stress and concentrate.

Feature of the present invention is that also described hole is sudden change enlarging shape hole, corresponding formation Cast-in-place concrete sudden change shape cap.Like this, can form the cap or the pier cap of Cast-in-place concrete post or pier, improve the hollowcore slab mechanical property.

Feature of the present invention also is to have on the surface of the light carcass of at least one end of described hole at least one groove to link to each other with hole.Like this, Cast-in-place concrete enters in the groove can form Cast-in-place concrete rib or reinforcing rib, further improves the mechanical property of superstructure, improves the mutual wedge action between lightening permanent loose tool and the Cast-in-place concrete, improves the globality of hollowcore slab.

Feature of the present invention is that also the side of described groove or bottom surface or both are arc.Like this, the mutual wedge action between lightening permanent loose tool and the Cast-in-place concrete is better.

Feature of the present invention is that also described groove is above step sudden expansion connected in star or the wide connected in star of flaring of one-level.Like this, formed Cast-in-place concrete rib or reinforcing rib are step, the corresponding mechanical property of improving hollowcore slab.

Feature of the present invention is that also described groove is parallel to each other or is communicated with, and is parallel, quadrature or oblique each other and arranges.Like this, can design according to actual needs,, reduce the construction cost of hollowcore slab to satisfy the needs of various different occasions.

It is the intersection point of quadrature or oblique that feature of the present invention also is between the described groove with the hole.Like this, the Cast-in-place concrete rib of formation or reinforcing rib and Cast-in-place concrete post or pier are interconnected to integral body, have improved the globality and the mechanical property of hollowcore slab.

Feature of the present invention also is on the peripheral side of described light carcass at least one groove is arranged.Like this, in groove, can form Cast-in-place concrete rib or reinforcing rib.When groove when being vertical and big, then form Cast-in-place concrete post or pier, further improved the mechanical property of hollowcore slab.

Feature of the present invention is that also the axis of the axis of described at least one hole and at least one above carcass lateral grooves is in a plane.Like this, formed superimposed concrete post and ribs or muscle and Cast-in-place concrete panel can form force structure preferably.

Feature of the present invention is that also at least one end of described at least one hole has at least one local recessed zone to link to each other with hole.Like this, can make things convenient on the one hand the cast of Cast-in-place concrete, guarantee that concrete is closely knit in the hole, the Cast-in-place concrete in the recessed area can improve post or the pier stress concentration phenomenon in the corner on the other hand.

Feature of the present invention is that also described recessed zone is the above step recessed area of secondary.Like this, can form the cap structure of hollowcore slab, improve the stress performance of hollowcore slab.

Feature of the present invention is that also the size of at least one end of described hole greater than the center, is step or arc horn mouth.Like this, the concrete cast is more convenient, can effectively improve post or pier stress concentration phenomenon around the corner.

Feature of the present invention also is to have on the surface of at least one end light carcass of hole at least one in boss or raised line or the protruding nail.Like this, the mutual build-in between lightening permanent loose tool and the Cast-in-place concrete is better, and the globality of hollowcore slab is stronger.

Feature of the present invention is that also described hole is arranged in a row or two or more rows on light carcass, be parallel each other between two rows or the hole cross-section center line more than two rows or quadrature or oblique layout.Like this, can design,, reduce the construction cost of hollowcore slab to satisfy the needs of different situations according to actual.

Feature of the present invention is that also the cross section of described hole is the combination of circle or polygon or arc angle polygon or ellipse or similar round or class ellipse or cross or above-mentioned shape reducing cross section or above-mentioned shape.Like this, more convenient design is selected for use, helps reducing construction cost.

Feature of the present invention is that also described light carcass is a solid.Like this, the making of light carcass is simpler relatively, even light carcass has breakage in carrying and work progress, also needn't repair, and it is more convenient to construct, and construction cost is lower.

Feature of the present invention is that also described light carcass is the solid of folder light material in the hard thin-wall.Like this, the intensity of light carcass is better, simultaneously, the insulation of hollowcore slab, heat insulation, sound insulation value is better.

Feature of the present invention is that also described light carcass is a hollow matrix.Like this, the weight of light carcass is lighter, and it is more convenient to carry, construct.

Feature of the present invention is that also described light carcass is cavity thin-walled matrix or macropore hollow matrix or porous hollow carcass.Like this, can select according to actual needs, make things convenient for design and construction unit to select for use, help reducing the construction cost of hollowcore slab.

Feature of the present invention also is in the described light carcass reinforcement is arranged, and reinforcement is at least one in stiffening rib or bracing boom or the reinforcing rib.Like this, the intensity and the rigidity of light carcass are higher, and the globality of hollowcore slab is better.

Feature of the present invention is that also described reinforcement is the compound reinforcement of cement gel ramming material and reinforce.Like this, the intensity and the rigidity of reinforcement are better, and the mechanical property of hollowcore slab is better.

Feature of the present invention is that also described reinforce is at least a in steel wire, reinforcing bar, gauze wire cloth, steel mesh reinforcement, fiber, fibrous mesh cloth, nonwoven, the thin band.Like this, reinforce wide in variety can be selected according to design and the needs of producing, and help reducing the construction cost of hollowcore slab.

Feature of the present invention is that also the surface of described light carcass exposes reinforce is arranged.Like this, the bonding between lightening permanent loose tool and the Cast-in-place concrete is more firm, and the globality of hollowcore slab is better.

Feature of the present invention also is hole quadrature or the oblique on the side around on the described light carcass.Like this, can satisfy the needs of different designs and construction.

Feature of the present invention is that also described light carcass shape of cross section is rectangle or square or cross or polygon or arc angle polygon or circular oval.Like this, can satisfy the needs of different designs and construction, help reducing the construction cost of hollowcore slab.

Feature of the present invention also is to be useful on the described light carcass link connected to one another between the light carcass.Like this, when construction, can make things convenient for the construction of lightening permanent loose tool, make loose tool connection each other more convenient, the speed of application of hollowcore slab is faster.Link can be tube connector, cutting ferrule, bolt, bar dowel, weldment etc.

Feature of the present invention also is to have on the peripheral side of described light carcass the boss mould or the pothole of evagination.Like this, can further improve the mutual wedge action between lightening permanent loose tool and the Cast-in-place concrete, improve the globality of hollowcore slab.

Feature of the present invention also is to be connected and fixed member on the described light carcass.Like this, make things convenient for the construction of lightening permanent loose tool, particularly itself and lower support or template is connected and fixed.Be connected and fixed member and can be drag hook, draw ring, iron wire etc.

Feature of the present invention is that also the thin-walled of described light carcass is a metal sheet.Like this, can adopt metallic stamping pieces as the lightening permanent loose tool.As adopt metal corrugated plate as thin-walled.

Feature of the present invention is that also the thin-walled of described light carcass is the composite construction of cement gel ramming material and reinforce.Like this, the intensity height of thin-walled, not cracky; Its composite construction can adopt one deck cementitious matter one deck reinforce layer structure of one deck cementitious matter again, and it is more convenient easy to make.Simultaneously, the surface of light carcass also can be exposed reinforce.

Feature of the present invention is that also the thin-walled of described hole or the thin-walled of groove are metallic walls or wire lath wall or carbon fiber wall.

Feature of the present invention also is to be provided with prestressed reinforcement in the described steel bar concrete.Like this, hollowcore slab is applicable to the hollow-core construction of striding the footpath greatly, and its stress performance is better, and supporting capacity is higher, and crack resistance is better.

Feature of the present invention also is to be provided with reinforcing bar in the described steel bar concrete, and reinforcing bar is at least a in cold-rolled forming section, i iron, angle steel, channel-section steel, the band steel.Like this, the supporting capacity of hollowcore slab is higher, and is stressed better with transmission force property, is applicable to stressed bigger hollow-core construction occasion.

(4) description of drawings

Fig. 1 is the structural representation of the embodiment of the invention 1.In each accompanying drawing, 1 is steel bar concrete, and 2 is light carcass, and 3 are the cast hole, and 4 is superimposed concrete post, below in each accompanying drawing, number identically, its explanation is identical.As shown in Figure 1, have a plurality of light carcass 2 to wrap up in the hollowcore slab and be contained in the steel bar concrete 1, the hole 3 of a perforation is arranged on the light carcass 2, cast-in-situ reinforced concrete 1 is poured into and forms superimposed concrete post 4 in the hole 3.

Fig. 2 is the structural representation of the embodiment of the invention 2, and its four light carcass 2 arrange, and wrap up in fully and be contained in the steel bar concrete 1 that the interval between the light carcass 2 has formed cast-in-place concrete hidden rib 5 at interval.

Fig. 3 is the structural representation of the embodiment of the invention 3, and its light carcass 2 has formed the two-way cast in place reinforced bar concrete hidden rib 5 of quadrature each other alternately, and lightweight member 2 also can be set to oblique or the wrong interval of arranging of handing over each other.

Fig. 4 is the structural representation of the embodiment of the invention 4, and it is wrapped up in the light carcass 2 that contains and is provided with four holes 3, and is parallel each other, corresponding Cast-in-place concrete superposed column 4 layouts parallel to each other.

Fig. 5 is the structural representation of the embodiment of the invention 5, and in its cast-in-situ reinforcing steel bar concrete hollow slab, wrapping up in the light carcass 2 that contains, to be provided with two ends be gradual change enlarging shape hole 3, and after concrete was poured in the hole 3, two ends had formed Cast-in-place concrete distortion cap.

Fig. 6 is the structural representation of the embodiment of the invention 6, during it is cast-in-place concrete cored, wraps up on the light carcass 2 that contains, the hole 3 that is provided with is sudden change enlarging shape hole, after concrete is poured in the hole 3, form the cast-in-situ reinforcing steel bar concrete hollow slab of band Cast-in-place concrete sudden change shape cap, be illustrated as the step cap.

Fig. 7 is the structural representation of the embodiment of the invention 7, during it is cast-in-place concrete cored, wraps up in and contains a plurality of light carcass 2, and light carcass 2 is provided with the groove 6 of quadrature in length and breadth, and groove 6 intersection location are provided with perforated holes 3 and are attached thereto logical.

Fig. 8 is the structural representation of the embodiment of the invention 8, during it is cast-in-place concrete cored, wraps up in and contains a plurality of light carcass 2, and the groove 5 on its light carcass 2 is the wide connected in star of flaring, behind the Cast-in-place concrete, forms band wide shape reinforcing rib of flaring or rib.

Fig. 9 is the structural representation of the embodiment of the invention 9, in its cast-in-situ reinforcing steel bar concrete hollow slab, wraps up in and contains a plurality of light carcass 2, and sidewall is provided with the groove 6 of a plurality of up/down perforations around the light carcass 2, behind the cast-in-situ reinforced concrete 1, forms dark rib 5.

Figure 10 is the structural representation of the embodiment of the invention 10, in its cast-in-situ reinforcing steel bar concrete hollow slab, wrap up in and contain a plurality of light carcass 2, light carcass 2 is provided with the hole 3 of a plurality of up/down perforations, is provided with the local recessed zone 7 that links to each other with hole 3 in the upper end of hole 3.

Figure 11 is the structural representation of the embodiment of the invention 11, in its cast-in-situ reinforcing steel bar concrete hollow slab, wraps up in and contains a plurality of carcasses 2, light carcass 2 is provided with a plurality of cast holes 3, the cross sectional shape of hole 3 is circular, and hole 3 both ends sizes are greater than the center size, curved horn mouth.

Figure 12 is the structural representation of the embodiment of the invention 12, in its cast-in-situ reinforcing steel bar concrete hollow slab, wraps up in and contains a plurality of light carcass 2, and light carcass 2 is provided with boss 8, raised line 9 and protruding nail 10.

Figure 13 is the structural representation of the embodiment of the invention 13, in its cast-in-situ reinforcing steel bar concrete hollow slab, wraps up in and contains a plurality of light carcass 2, and light carcass 2 is a solid.

Figure 14 is the structural representation of the embodiment of the invention 14, in its cast-in-situ reinforcing steel bar concrete hollow slab, wraps up in and contains a plurality of light carcass 2, is filled with light material 12 in the light carcass 2, is illustrated as foamed plastics.

Figure 15 is the structural representation of the embodiment of the invention 15, in its cast-in-situ reinforcing steel bar concrete hollow slab, wraps up in and contains a plurality of carcasses 2, is provided with reinforcement 13 in the light carcass 2, and reinforcement 13 is stiffening rib, bracing boom or reinforcing rib.

Figure 16 is the structural representation of the embodiment of the invention 16, in its cast-in-situ reinforcing steel bar concrete hollow slab, wraps up in and contains a plurality of light carcass 2, is useful on the cylindric link 15 that light carcass 2 is connected on the light carcass 2.

Figure 17 is the structural representation of the embodiment of the invention 17, in its cast-in-situ reinforcing steel bar concrete hollow slab, wraps up in and contains a plurality of light carcass 2, and outer wall is provided with and exposes or the boss mould 16 and the pothole 17 of indent around the light carcass 2.

Figure 18 is the structural representation of the embodiment of the invention 18, in its cast-in-situ reinforcing steel bar concrete hollow slab, wraps up in and contains a plurality of light carcass 2, is spaced between the light carcass 2, forms cast-in-place concrete hidden rib 5, is provided with prestressed reinforcement 19 in cast-in-place concrete hidden rib 5.

Figure 19 is the structural representation of the embodiment of the invention 19, in its cast-in-situ reinforcing steel bar concrete hollow slab, wrap up in and contain a plurality of light carcass 2, be spaced between the light carcass 2, form cast-in-place rib 5, simultaneously, in cold-rolled forming section, i iron, angle steel, channel-section steel, the wall steel one or more can be set in cast-in-place rib 5, be illustrated as i iron.

(5) specific embodiment

The present invention is further illustrated below in conjunction with drawings and Examples.

The present invention as shown in drawings, comprise steel bar concrete 1, light carcass 2, light carcass 2 some or all of wrapping up in are contained in the steel bar concrete 1, it is characterized in that having in the light carcass 2 at least one Cast-in-place concrete cast to run through two surfaces of light carcass 2 with hole 3, Cast-in-place concrete is cast in the hole 3, form superimposed concrete post 4, the cross section of hole 3 is circle or polygon or arc angle polygon or ellipse or cross, reinforcement 13 is arranged in the light carcass 2, and reinforcement 13 is at least one in stiffening rib or bracing boom or the reinforcing rib.Fig. 1 is the structural representation of the embodiment of the invention 1.In each accompanying drawing, 1 is steel bar concrete, and 2 is light carcass, and 3 are the cast hole, and 4 is superimposed concrete post, below in each accompanying drawing, number identically, its explanation is identical.As shown in Figure 1, have a plurality of light carcass 2 to wrap up in the hollowcore slab and be contained in the steel bar concrete 1, the hole 3 of a perforation is arranged on the light carcass 2, cast-in-situ reinforced concrete 1 is poured into and forms superimposed concrete post 4 in the hole 3.

Feature of the present invention also is described light carcass 2 interval layout in Cast-in-place concrete, forms cast-in-place concrete hidden rib 5 each other.Fig. 2 is the structural representation of the embodiment of the invention 2, and its four light carcass 2 arrange, and wrap up in fully and be contained in the steel bar concrete 1 that the interval between the light carcass 2 has formed cast-in-place concrete hidden rib 5 at interval.

Feature of the present invention is also that described cast-in-place concrete hidden rib is 5 orthogonal thereto, oblique or wrong the friendship are arranged.Fig. 3 is the structural representation of the embodiment of the invention 3, and its light carcass 2 has formed the two-way cast in place reinforced bar concrete hidden rib 5 of quadrature each other alternately, and lightweight member 2 also can be set to oblique or the wrong interval of arranging of handing over each other.

Feature of the present invention is that also the axis of described a plurality of hole 3 in a plane or in Different Plane, intersects each other or grade separation or intersection or parallel, and that corresponding Cast-in-place concrete superposed column 4 is each other is crossing, grade separation, intersect or be arranged in parallel.Fig. 4 is the structural representation of the embodiment of the invention 4, and it is wrapped up in the light carcass 2 that contains and is provided with four holes 3, and is parallel each other, corresponding Cast-in-place concrete superposed column 4 layouts parallel to each other.

Feature of the present invention is that also at least one end of described hole 3 is a gradual change enlarging shape hole, corresponding formation Cast-in-place concrete distortion cap.Fig. 5 is the structural representation of the embodiment of the invention 5, and in its cast-in-situ reinforcing steel bar concrete hollow slab, wrapping up in the light carcass 2 that contains, to be provided with two ends be gradual change enlarging shape hole 3, and after concrete was poured in the hole 3, two ends had formed Cast-in-place concrete distortion cap.

Feature of the present invention is that also described hole 3 is sudden change enlarging shape hole, corresponding formation Cast-in-place concrete sudden change shape cap.Fig. 6 is the structural representation of the embodiment of the invention 6, during it is cast-in-place concrete cored, wraps up on the light carcass 2 that contains, the hole 3 that is provided with is sudden change enlarging shape hole, after concrete is poured in the hole 3, form the cast-in-situ reinforcing steel bar concrete hollow slab of band Cast-in-place concrete sudden change shape cap, be illustrated as the step cap.

Feature of the present invention also is to have on the surface of the light carcass 2 of at least one end of described hole 3 at least one groove 6 to link to each other with hole 3.Fig. 7 is the structural representation of the embodiment of the invention 7, during it is cast-in-place concrete cored, wraps up in and contains a plurality of light carcass 2, and light carcass 2 is provided with the groove 6 of quadrature in length and breadth, and groove 6 intersection location are provided with perforated holes 3 and are attached thereto logical.

Feature of the present invention is that also the side of described groove 6 or bottom surface or both are arc.As shown in Figure 7, the side of groove 6, bottom surface both be arc.

Feature of the present invention is that also described groove 6 is one-level above step sudden expansion connected in star or the wide connected in star of flaring.Fig. 8 is the structural representation of the embodiment of the invention 8, during it is cast-in-place concrete cored, wraps up in and contains a plurality of light carcass 2, and the groove 5 on its light carcass 2 is the wide connected in star of flaring, behind the Cast-in-place concrete, forms band wide shape reinforcing rib of flaring or rib.

Feature of the present invention is that also described groove 6 is parallel to each other or is communicated with, and is parallel, quadrature or oblique each other and arranges.As shown in Figure 8, groove 6 communicates with each other, and is to be parallel to each other and the quadrature setting.

It is the intersection point of quadrature or oblique that feature of the present invention also is between the described groove 6 with hole 3.As shown in Figure 8, be the intersection point of quadrature with hole 3 between its groove 6.

Feature of the present invention also is on the peripheral side of described light carcass 2 at least one groove 6 is arranged.Fig. 9 is the structural representation of the embodiment of the invention 9, in its cast-in-situ reinforcing steel bar concrete hollow slab, wraps up in and contains a plurality of light carcass 2, and sidewall is provided with the groove 6 of a plurality of up/down perforations around the light carcass 2, behind the cast-in-situ reinforced concrete 1, forms dark rib 5.

Feature of the present invention is that also the axis of the axis of described at least one hole 3 and at least one above carcass lateral grooves 6 is in a plane.As shown in Figure 9, the axis of the groove 6 of the axis of its hole 3 and carcass side is in a plane.

Feature of the present invention is that also at least one end of described at least one hole 3 has at least one local recessed zone 7 to link to each other with hole 3.Figure 10 is the structural representation of the embodiment of the invention 10, in its cast-in-situ reinforcing steel bar concrete hollow slab, wrap up in and contain a plurality of light carcass 2, light carcass 2 is provided with the hole 3 of a plurality of up/down perforations, is provided with the local recessed zone 7 that links to each other with hole 3 in the upper end of hole 3.

Feature of the present invention is that also described recessed zone 7 is the above step recessed area of secondary.As shown in figure 10, its recessed zone 7 is a two stage steps shape recessed area.

Feature of the present invention is that also the size of at least one end of described hole 3 greater than the center, is step or arc horn mouth.Figure 11 is the structural representation of the embodiment of the invention 11, in its cast-in-situ reinforcing steel bar concrete hollow slab, wraps up in and contains a plurality of carcasses 2, light carcass 2 is provided with a plurality of cast holes 3, the cross sectional shape of hole 3 is circular, and hole 3 both ends sizes are greater than the center size, curved horn mouth.

Feature of the present invention also is to have on the surface of at least one end light carcass 2 of hole 3 at least one in boss 8 or raised line 9 or the protruding nail 10.Figure 12 is the structural representation of the embodiment of the invention 12, in its cast-in-situ reinforcing steel bar concrete hollow slab, wraps up in and contains a plurality of light carcass 2, and light carcass 2 is provided with boss 8, raised line 9 and protruding nail 10.

Feature of the present invention is that also described hole 3 is arranged in a row or two or more rows on light carcass 2, be parallel each other between two rows or the hole 3 cross-section center lines more than two rows or quadrature or oblique layout.As shown in figure 12, its hole 3 is arranged in two rows on light carcass 2, and the line of centres of its hole 3 is parallel and quadrature.

Feature of the present invention is that also the cross section of described hole 3 is circle or polygon or arc angle is polygonal or oval or the combination of similar round or class ellipse or cross or above-mentioned shape reducing cross section or above-mentioned shape.As shown in figure 12, the cross section of its hole 3 is a quadrangle.

Feature of the present invention is that also described light carcass 2 is solid.Figure 13 is the structural representation of the embodiment of the invention 13, in its cast-in-situ reinforcing steel bar concrete hollow slab, wraps up in and contains a plurality of light carcass 2, and light carcass 2 is a solid.

Feature of the present invention also is the solid of described light carcass 2 for folder light material 12 in the hard thin-wall 11.Figure 14 is the structural representation of the embodiment of the invention 14, in its cast-in-situ reinforcing steel bar concrete hollow slab, wraps up in and contains a plurality of light carcass 2, is filled with light material 12 in the light carcass 2, is illustrated as foamed plastics.

Feature of the present invention is that also described light carcass 2 is hollow matrix.To shown in Figure 6, light carcass 2 is a hollow matrix as Fig. 1.

Feature of the present invention is that also described light carcass 2 is cavity thin-walled matrix or macropore hollow matrix or porous hollow carcass.To shown in Figure 6, light carcass 2 is the cavity thin-walled matrix as Fig. 1.

Feature of the present invention also is in the described light carcass 2 reinforcement 13 is arranged, and reinforcement 13 is at least one in stiffening rib or bracing boom or the reinforcing rib.Figure 15 is the structural representation of the embodiment of the invention 15, in its cast-in-situ reinforcing steel bar concrete hollow slab, wraps up in and contains a plurality of carcasses 2, is provided with reinforcement 13 in the light carcass 2, and reinforcement 13 is stiffening rib, bracing boom or reinforcing rib.

Feature of the present invention also is the compound reinforcement of described reinforcement 13 for cement gel ramming material and reinforce 14.As shown in figure 15, reinforcement 13 is the compound reinforcement of cement gel ramming material and reinforce 14.

Feature of the present invention also is at least a in steel wire, reinforcing bar, gauze wire cloth, steel mesh reinforcement, fiber, fibrous mesh cloth, nonwoven, the thin band of described reinforce 14.As shown in figure 15, reinforce 14 is a reinforcing bar.

Feature of the present invention is that also the surface of described light carcass 2 exposes reinforce 14 is arranged.As shown in figure 15, the reinforce 14 that exposes is reinforcing bar and steel mesh reinforcement.

Feature of the present invention also is hole 3 quadrature or the oblique on the side around on the described light carcass 2.As shown in Figure 3, its hole 3 oblique on the side around.

Feature of the present invention is that also described light carcass 2 shape of cross sections are that rectangle or square or cross or polygon or arc angle polygon are circular or oval.As shown in figure 15, the shape of cross section of light carcass 2 is a square.

Feature of the present invention also is to be useful on the described light carcass 2 link 15 connected to one another between the light carcass.Figure 16 is the structural representation of the embodiment of the invention 16, in its cast-in-situ reinforcing steel bar concrete hollow slab, wraps up in and contains a plurality of light carcass 2, is useful on the cylindric link 15 that light carcass 2 is connected on the light carcass 2.

Feature of the present invention also is to have on the peripheral side of described light carcass 2 the boss mould 16 or the pothole 17 of evagination.Figure 17 is the structural representation of the embodiment of the invention 17, in its cast-in-situ reinforcing steel bar concrete hollow slab, wraps up in and contains a plurality of light carcass 2, and outer wall is provided with and exposes or the boss mould 16 and the pothole 17 of indent around the light carcass 2.

Feature of the present invention also is to be connected and fixed member 18 on the described light carcass 2.As shown in figure 17, there is drag hook type to be connected and fixed member 18 on the light carcass 2.

Feature of the present invention is that also the thin-walled 11 of described light carcass 2 is metal sheet.

Feature of the present invention also is the composite construction of the thin-walled 11 of described light carcass 2 for cement gel ramming material and reinforce 14.

Feature of the present invention is that also the surface of described light carcass 2 exposes reinforce 14 is arranged.

Feature of the present invention is that also the thin-walled 11 of described hole 3 or the thin-walled 11 of groove 6 are metallic walls or wire lath wall or carbon fiber wall.

Feature of the present invention also is to be provided with prestressed reinforcement 19 in the described steel bar concrete 1.Figure 18 is the structural representation of the embodiment of the invention 18, in its cast-in-situ reinforcing steel bar concrete hollow slab, wraps up in and contains a plurality of light carcass 2, is spaced between the light carcass 2, forms cast-in-place concrete hidden rib 5, is provided with prestressed reinforcement 19 in cast-in-place concrete hidden rib 5.

Feature of the present invention also is to be provided with reinforcing bar 20 in the described steel bar concrete 1, and reinforcing bar 20 is at least a in cold-rolled forming section, i iron, angle steel, channel-section steel, the band steel.Figure 19 is the structural representation of the embodiment of the invention 19, in its cast-in-situ reinforcing steel bar concrete hollow slab, wrap up in and contain a plurality of light carcass 2, be spaced between the light carcass 2, form cast-in-place rib 5, simultaneously, in cold-rolled forming section, i iron, angle steel, channel-section steel, the wall steel one or more can be set in cast-in-place rib 5, be illustrated as i iron.

During the invention process, press earlier the construction requirement mounting template, lay base plate reinforcing bar and dark beam, rib steel muscle secretly, light carcass 2 is installed then, re-lay upper reinforcement, pour concrete after the acceptance(check), treat the concrete setting and harden after, form removal promptly gets cast-in-situ reinforcing steel bar concrete hollow slab.

Claims (43)

1, a kind of cast-in-situ reinforcing steel bar concrete hollow slab, comprise steel bar concrete (1), light carcass (2), some or all of the wrapping up in of light carcass (2) is contained in the steel bar concrete (1), it is characterized in that having in the light carcass (2) at least one Cast-in-place concrete cast to run through two surfaces of light carcass (2) with hole (3), Cast-in-place concrete is cast in the hole (3), form superimposed concrete post (4), the cross section of hole (3) is circle or polygon or ellipse, reinforcement (13) is arranged in the light carcass (2), and reinforcement (13) is at least one in stiffening rib or bracing boom or the reinforcing rib.

2, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1, the cross section that it is characterized in that described hole (3) are cross or arc angle polygon.

3, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1 is characterized in that described light carcass (2) interval layout in Cast-in-place concrete, forms cast-in-place concrete hidden rib (5) each other.

4, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 3 is characterized in that described cast-in-place concrete hidden rib (5) is orthogonal thereto, oblique or wrong the friendship arrange.

5, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1, the axis that it is characterized in that described a plurality of hole (3) is in a plane or in Different Plane, intersect each other, the superimposed concrete post (4) that corresponding Cast-in-place concrete forms in hole (3) is to intersect each other to be arranged.

6, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1, the axis that it is characterized in that described a plurality of hole (3) is in a plane or in Different Plane, grade separation each other, the superimposed concrete post (4) that corresponding Cast-in-place concrete forms in hole (3) are grade separation each other and arrange.

7, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1, the axis that it is characterized in that described a plurality of hole (3) is in a plane or in Different Plane, intersected with each other, the superimposed concrete post (4) that corresponding Cast-in-place concrete forms in hole (3) is to intersect each other to be arranged.

8, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1, the axis that it is characterized in that described a plurality of hole (3) is in a plane or in Different Plane, parallel to each other, the superimposed concrete post (4) that corresponding Cast-in-place concrete forms in hole (3) is each other and is arranged in parallel.

9, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1, at least one end that it is characterized in that described hole (3) are gradual change enlarging shape hole, corresponding formation Cast-in-place concrete distortion cap.

10, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1 is characterized in that described hole (3) is sudden change enlarging shape hole, corresponding formation Cast-in-place concrete sudden change shape cap.

11, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1 is characterized in that having at least one groove (6) to link to each other with hole (3) on the surface of the light carcass (2) of at least one end of described hole (3).

12, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 11 is characterized in that the side of described groove (6) or bottom surface or both are arc.

13, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 11 is characterized in that described groove (6) is one-level above step sudden expansion connected in star or the wide connected in star of flaring.

14, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 11 is characterized in that described groove (6) is parallel to each other or is communicated with, and is parallel, quadrature or oblique each other and arranges.

15, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 14 is characterized in that between the described groove (6) with hole (3) being the intersection point of quadrature or oblique.

16, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1 is characterized in that on the peripheral side of described light carcass (2) at least one groove (6) being arranged.

17, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 16, the axis that it is characterized in that the axis of described at least one hole (3) and at least one above carcass lateral grooves (6) is in a plane.

18, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1 is characterized in that at least one end of described at least one hole (3) has at least one local recessed zone (7) to link to each other with hole (3).

19, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 18 is characterized in that described recessed zone (7) is the above step recessed area of secondary.

20, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 18, the size of at least one end that it is characterized in that described hole (3) is step or arc horn mouth greater than the center.

21, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1 is characterized in that having on the surface of at least one end light carcass (2) of hole (3) at least one in boss (8) or raised line (9) or the protruding nail (10).

22, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1, it is characterized in that described hole (3) is arranged in a row or two or more rows on light carcass (2), be parallel each other between two rows or hole (3) the cross-section center line more than two rows or quadrature or oblique layout.

23, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1 is characterized in that described light carcass (2) is a solid.

24, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 23 is characterized in that the solid of described light carcass (2) for folder light material (12) in the hard thin-wall (11).

25, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1 is characterized in that described light carcass (2) is a hollow matrix.

26, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 25 is characterized in that described light carcass (2) is cavity thin-walled matrix or macropore hollow matrix or porous hollow carcass.

27, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 25 is characterized in that the compound reinforcement of described reinforcement (13) for cement gel ramming material and reinforce (14).

28, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 27 is characterized in that at least a in steel wire, reinforcing bar, gauze wire cloth, steel mesh reinforcement, fiber, fibrous mesh cloth, nonwoven, the thin band of described reinforce (14).

29, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 27, expose on the surface that it is characterized in that described light carcass (2) has reinforce (14).

30, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1 is characterized in that hole (3) quadrature or oblique on the side around on the described light carcass (2).

31, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1 is characterized in that described light carcass (2) shape of cross section is that polygon is circular or oval.

32, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1 is characterized in that described light carcass (2) shape of cross section is rectangle or square or cross.

33, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 31 is characterized in that described polygon is the arc angle polygon.

34, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1 is characterized in that being useful on the described light carcass (2) link connected to one another (15) between the light carcass.

35, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1 is characterized in that having on the peripheral side of described light carcass (2) the boss mould (16) or the pothole (17) of evagination.

36, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1 is characterized in that being connected and fixed on the described light carcass (2) member (18).

37, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1, the thin-walled (11) that it is characterized in that described light carcass (2) is a metal sheet.

38, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1 is characterized in that the composite construction of the thin-walled (11) of described light carcass (2) for cement gel ramming material and reinforce (14).

39, according to the described a kind of cast-in-situ reinforcing steel bar concrete hollow slab of claim 38, expose on the surface that it is characterized in that described light carcass (2) has reinforce (14).

40, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1 is characterized in that the thin-walled (11) of described hole (3) or the thin-walled (11) of groove (6) are metallic walls or carbon fiber wall.

41, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1 is characterized in that the thin-walled (11) of described hole (3) or the thin-walled (11) of groove (6) are the wire lath wall.

42, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1 is characterized in that being provided with in the described steel bar concrete (1) prestressed reinforcement (19).

43, a kind of cast-in-situ reinforcing steel bar concrete hollow slab according to claim 1 is characterized in that being provided with in the described steel bar concrete (1) reinforcing bar (20), and reinforcing bar (20) is at least a in cold-rolled forming section, i iron, angle steel, channel-section steel or the band steel.

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