CN101311440A - Cast-in-place reinforced concrete or prestressed reinforced concrete hollow slab - Google Patents

Cast-in-place reinforced concrete or prestressed reinforced concrete hollow slab Download PDF

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Publication number
CN101311440A
CN101311440A CNA2008103009534A CN200810300953A CN101311440A CN 101311440 A CN101311440 A CN 101311440A CN A2008103009534 A CNA2008103009534 A CN A2008103009534A CN 200810300953 A CN200810300953 A CN 200810300953A CN 101311440 A CN101311440 A CN 101311440A
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China
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body
reinforced concrete
overlapping layers
cast
perhaps
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CNA2008103009534A
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Chinese (zh)
Inventor
邱则有
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邱则有
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Priority to CNA2008103009534A priority Critical patent/CN101311440A/en
Publication of CN101311440A publication Critical patent/CN101311440A/en

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Abstract

A hollow slab of cast-in-place reinforced concrete or prestressed reinforced concrete comprises reinforced concrete, a tube body (1) and precast choke plugs (2). The tube body (1) is wrapped in the cast-in-place reinforced concrete, and two precast choke plugs (2) block off both ends of the tube body (1) to form a sealed hollow tube. The hollow slab of cast-in-place reinforced concrete or prestressed reinforced concrete is characterized in that the precast choke plug (2) at least at one end of the hollow tube is provided with a back-bonding overlapping layer (3), the back-bonding overlapping layer (3) bonds the precast choke plugs (2) and the tube body (1) into an integral hollow component, the tube body (1) is internally provided with a stiffening member (5) which is a ribbed stiffener or/and bracing piece or/and strengthening rib or/and strengthening rope. The hollow slab of cast-in-place reinforced concrete or prestressed reinforced concrete is applicable to hollow slabs, floor systems, roof systems, walls, foundation slabs and vierendeel bridges of cast-in-place reinforced concrete or prestressed reinforced concrete, in particular to hollow flat slabs of cast-in-place reinforced concrete.

Description

A kind of cast-in-situ reinforced concrete or prestressed reinforced concrete hollow slab

The application for the applying date be that November 2, application number in 2004 are 200410155423.7, name is called the dividing an application of application for a patent for invention of " a kind of hollow pipe for filling concrete ".

(1) technical field

The present invention relates to a kind of cast-in-situ reinforced concrete or prestressed reinforced concrete hollow slab.

(2) background technology

Advantages such as at present, cast-in-situ concrete hollow floor is owing to have quick construction, and the template loss is little, can realize large bay, cuts off flexibly, and it is little to conduct oneself with dignity are more and more widely used.It becomes pole to be generally hollow thin-wall pipe, as paper tube, pipe of cement etc., its shortcoming is that intensity difference, non-deformability are little, the anti-vibration deformability is poor, for this reason, the application number of applicant application is 99115649.8, name is called the patent of invention of " fibre reinforced hollow thin-wall tube for filling in bar reinforced concrete and manufacture method thereof ", its disclosed hollow thin-wall pipe comprises body, plug, two plugs form a sealed hollow light-wall pipe with the body closed at both ends, have premium properties such as intensity height, resistance to deformation, anti-vibration, and make simple, practical, economic, easy popularization.But it is not firm to be connected between its plug of this hollow thin-wall pipe and the body, the phenomenon that is prone to separation, ftractures or comes off, simultaneously, be applied to cast-in-situ concrete hollow floor after, formed hollowcore slab is unidirectional hollowcore slab, its vertical cross stiffness difference is big, poor seismic behavior.Therefore, develop a kind of cast-in-situ reinforced concrete or prestressed reinforced concrete hollow slab 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 reinforced concrete or prestressed reinforced concrete hollow slab, it is firm to be connected between its plug and the body, the phenomenon that is not prone to separation, ftractures or comes off, simultaneously, be applied in the cast-in-situ concrete hollow floor, can reduce the vertical cross stiffness difference of superstructure, improve anti-seismic performance.

Solution of the present invention is on the basis of existing technology, comprise steel bar concrete, body, prefabricated plug, body is wrapped up in and is contained in the cast-in-situ reinforced concrete, two prefabricated plugs form the shutoff of body two ends the hollow section of sealing, the prefabricated plug of at least one end that it is characterized in that described hollow section is provided with back bonding overlapping layers, back bonding overlapping layers is bonded to whole hollow unit with prefabricated plug and body, be provided with stiffener in the body, stiffener be stiffening rib or/and bracing boom or/and reinforcing rib or/and add wring.Like this, because the prefabricated plug of at least one end of hollow section is provided with back bonding overlapping layers, back bonding overlapping layers is bonded to whole hollow unit with prefabricated plug and body, thereby, be connected firmly the phenomenon that is not prone to separation, ftractures or comes off between plug and the body; Simultaneously, be superimposed with the plug of overlapping layers, its intensity height, rigidity are big, can play the effect of stiffening rib, thereby after being applied to cast-in-situ concrete hollow floor, the vertical cross stiffness difference of superstructure can reduce greatly, and anti-seismic performance can improve greatly; In addition, characteristics such as hollow section also has intensity height, resistance to deformation, anti-vibration, manufacturing is easy, cost is low, the hollowcore slab, hollow building cover, roof system, sole plate, body of wall and the hollow bridges that are applicable to cast-in-situ reinforced concrete or prestressed reinforced concrete are used, and are specially adapted to the cast-in-situ reinforced concrete hollow arch without beam and use.

Feature of the present invention is that also described overlapping layers and body link into an integrated entity.Like this, after overlapping layers and body link into an integrated entity, overlapping layers and body formed can whole load member, the phenomenon that makes hollow pipe for filling concrete in the practice of construction application process, not be prone to overlapping layers and body breakage, separate, come off, reduce the loss of product, saved cost.

Feature of the present invention is that also described overlapping layers is to be formed by stacking more than two layers.Like this, overlapping layers is when being formed by stacking more than two layers, can increase substantially the intensity and the shock resistance of overlapping layers, makes it when bearing bigger impact damage power, and overlapping layers can be broken, still can come into operation under the prerequisite of not repairing.

Feature of the present invention is that also described overlapping layers is mortar or concrete overlapping layers.Like this, overlapping layers adopts mortar or concrete overlapping layers to make, and can fully satisfy the application demand under the various different situations, simultaneously, by to rationally the selecting for use of material, helps saving cost, reduces the product cost.

Feature of the present invention also is to be provided with reinforce at least one of described body, prefabricated plug, overlapping layers.Like this, when being provided with reinforce at least one of body, prefabricated plug, overlapping layers, the intensity of body, prefabricated plug, overlapping layers has obtained significantly improving, and can fully satisfy load bearing requirements.

Feature of the present invention is that also described reinforce is at least a in the net of fiber, reinforcing bar, steel wire or above-mentioned material or the thin band.Like this, the application demand under the various different situations can be fully satisfied in the variation of reinforce, and selection convenient, help reasonable material as required, reduce cost.

Feature of the present invention is that also described thin band reinforce is at least a thin band in porose, seam, raw edges, drift bolt, pin, sour jujube head or the convex-concave.Like this, after thin band reinforce is provided with above-mentioned structure, improve the anchorage reliability of thin band reinforce greatly, effectively ensured the intensity and the shock resistance of hollow pipe for filling concrete.

Feature of the present invention is that also described reinforce stretches into anchoring the overlapping layers from body, perhaps stretches into anchoring in the overlapping layers from prefabricated plug, perhaps stretches into anchoring in the overlapping layers simultaneously from body and prefabricated plug.Like this, reinforce stretches into anchoring the overlapping layers from body, perhaps stretches into anchoring in the overlapping layers from prefabricated plug, perhaps stretches into anchoring in the overlapping layers simultaneously from body and prefabricated plug, can improve the intensity and the rigidity of hollow section greatly.

Feature of the present invention is that also described reinforce exposes outside the hollow section from body, prefabricated plug or overlapping layers at least one.Like this, after hollow section was applied in the cast-in-situ concrete hollow floor, the reinforce and the Cast-in-place concrete that expose in hollow body or the plug combined, and can improve the overall performance of steel bar reinforced hollow concrete roof cast-in-situs greatly.

Feature of the present invention also is to be provided with in the described body at least one stiffener, and stiffener is stiffening rib, bracing boom, reinforcing rib, adds at least one in wringing.Like this, after hollow section is applied in the cast-in-situ concrete hollow floor, be provided with stiffener in the hollow body and can form the cast-in-place and prefabricated composite construction that combines with Cast-in-place concrete, optimized the inner stress system of cast-in-situ concrete hollow floor, simultaneously, stiffener wide in variety is convenient to design, produces, construction selects for use, helps reducing and produces and construction cost.

Feature of the present invention is that also described stiffener is whole hollow unit, local hollow unit or fills out core component.Like this, after hollow section is applied in the cast-in-situ concrete hollow floor, can rationally select for use above-mentioned stiffener to come hollow pipe for filling concrete is strengthened according to the different needs of actual conditions, to reduce the weight of hollow pipe for filling concrete, economical with materials to greatest extent.

Feature of the present invention also is to be provided with reinforce in the described stiffener, and perhaps reinforce is outside stiffener exposes the body of hollow section, and perhaps stiffener exposes outside the body.Like this, in stiffener, be provided with reinforce, perhaps reinforce is outside stiffener exposes the body of hollow section, when perhaps stiffener exposed outside the body, the intensity of stiffener had obtained significantly improving, and can fully satisfy load bearing requirements, after described hollow section is applied in the Cast-in-place Concrete Building Floor, the above-mentioned member that exposes can fully combine with Cast-in-place concrete, makes hollow section and interior member participation structure thereof stressed jointly, can improve the mechanical property of superstructure effectively.

Feature of the present invention is that also the commissure of the tube wall of described body is formed with a raised line along the body axis direction.Like this, be formed with one behind the raised line of body axis direction at the commissure of the tube wall of body, raised line has been strengthened the commissural weak part of tube wall, makes joint close not easy to crack, can reduce the proportion of goods damageds of hollow pipe for filling concrete effectively.

Feature of the present invention is that also the external surface at least one of described body, prefabricated plug or overlapping layers is provided with the indent structure.Like this, when described hollow section is applied in the cast-in-situ concrete hollow floor, after Cast-in-place concrete pours in the above-mentioned indent structure, formed corresponding with it Cast-in-place concrete member, can fully satisfy the needs of various different situations in the actual application, as strengthen intensity and rigidity, make things convenient for the layout of various pipelines or member etc.

Feature of the present invention is that also described indent is configured at least a in groove, inner corner trim, hole, the chamfering.Like this, the variation of indent structure makes things convenient for selecting for use of design and construction unit, helps reducing construction and cost of production.

Feature of the present invention is that also the external surface of described body is provided with raised line or boss or the two combination.Like this, can improve the mutual wedge action between hollow section and the Cast-in-place concrete, improve the globality of superstructure.

Feature of the present invention is that also the surface of described body is provided with angle.Like this, when described hollow section is applied in the cast-in-situ concrete hollow floor, angle can position hollow section, make hollow section be in design attitude in the superstructure all the time, the technician can effectively be controlled, for the pouring quality of cast-in-situ concrete hollow floor provides reliable guarantee to hidden members such as hollow sections in the superstructure.

Feature of the present invention is that also the angle of described body is provided with the base plate of disjunctor with it.Like this, when described hollow section was applied in the cast-in-situ concrete hollow floor, the alternative construction formwork of the base plate of disjunctor and do not need to remove had improved speed of application greatly, has reduced the comprehensive cost of superstructure.

Feature of the present invention is that also described base plate exceeds the outside left formation toss of body.Like this, the alternative template of toss greatly reduces cost.

Feature of the present invention is also that described body or overlapping layers are provided with and is used for the connector that docks with another root hollow section.Like this, after hollow section is applied in the cast-in-situ concrete hollow floor, can make between hollow section and the hollow section to be connected very easily, help accelerating speed of application.

Feature of the present invention is that also described connector is at least a of wedge mouth, tenon, hole, latch, cutting ferrule, tongue and groove, male and female groove, iron wire or weldment.Like this, make things convenient for the production of production unit, also make things convenient for selecting for use of design and construction unit simultaneously, help reducing construction and cost of production.

Feature of the present invention is that also described body is pipe, polygon pipe or arc angle polygon pipe.Like this, when the cross sectional shape of hollow section is above-mentioned various situation, make the range of application of hollow section obtain expansion, can fully satisfy the needs that are applied to various different actual conditions.

Feature of the present invention is that also the surface of described body is at least a of even surface, corrugated surface, step surface, male and fomale(M﹠F), helicoid or exasperate.Like this, when hollow section is applied in the cast-in-situ concrete hollow floor, the surface of body is even surface, corrugated surface, step surface, male and fomale(M﹠F), helicoid or exasperate, makes the bonding between hollow section and the Cast-in-place concrete more reliable, situations such as more difficult generation bubble, hollowing, honeycomb.

Feature of the present invention is that also the material of described body is metal, plastics or cement gel ramming material.Like this, the variation of hollow section manufacturing materials can make hollow section fully satisfy the needs of various different situations, helps reducing product cost.

Feature of the present invention is that also described body is provided with the base plate of disjunctor with it.Like this, when described hollow section was applied in the cast-in-situ concrete hollow floor, the alternative construction formwork of the base plate of disjunctor and do not need to remove had improved speed of application greatly, has reduced the comprehensive cost of superstructure.

Feature of the present invention is that also described base plate exceeds the outside left formation toss of body.Like this, when hollow section was applied in the cast-in-situ concrete hollow floor, the toss of formation can replace construction formwork, reduced the template loss, reduced material cost, can save the template installation procedure simultaneously, accelerated speed of application, improved efficiency of construction.

(4) description of drawings

Fig. 1 is the tubular structure schematic diagram in the embodiment of the invention 1.

Fig. 2 is the tubular structure schematic diagram in the embodiment of the invention 2.

Fig. 3 is the tubular structure schematic diagram in the embodiment of the invention 3.

Fig. 4 is the tubular structure schematic diagram in the embodiment of the invention 4.

Fig. 5 is the tubular structure schematic diagram in the embodiment of the invention 5.

Fig. 6 is the tubular structure schematic diagram in the embodiment of the invention 6.

Fig. 7 is the tubular structure schematic diagram in the embodiment of the invention 7.

Fig. 8 is the tubular structure schematic diagram in the embodiment of the invention 8.

Fig. 9 is the tubular structure schematic diagram in the embodiment of the invention 9.

Figure 10 is the tubular structure schematic diagram in the embodiment of the invention 10.

Figure 11 is the tubular structure schematic diagram in the embodiment of the invention 11.

Figure 12 is the tubular structure schematic diagram in the embodiment of the invention 12.

Figure 13 is the tubular structure schematic diagram in the embodiment of the invention 13.

Figure 14 is the tubular structure schematic diagram in the embodiment of the invention 14.

Figure 15 is the tubular structure schematic diagram in the embodiment of the invention 15.

Figure 16 is the tubular structure schematic diagram in the embodiment of the invention 16.

Figure 17 is the tubular structure schematic diagram in the embodiment of the invention 17.

Figure 18 is the tubular structure schematic diagram in the embodiment of the invention 18.

Figure 19 is the tubular structure schematic diagram in the embodiment of the invention 19.

Figure 20 is the tubular structure schematic diagram in the embodiment of the invention 20.

Figure 21 is the tubular structure schematic diagram in the embodiment of the invention 21.

Figure 22 is the tubular structure schematic diagram in the embodiment of the invention 22.

Figure 23 is the tubular structure schematic diagram in the embodiment of the invention 23.

Figure 24 is the tubular structure schematic diagram in the embodiment of the invention 24.

Figure 25 is the tubular structure schematic diagram in the embodiment of the invention 25.

Figure 26 is the tubular structure schematic diagram in the embodiment of the invention 26.

Figure 27 is the tubular structure schematic diagram in the embodiment of the invention 27.

Figure 28 is the tubular structure schematic diagram in the embodiment of the invention 28.

Figure 29 is the tubular structure schematic diagram in the embodiment of the invention 29.

(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, body 1, prefabricated plug 2, body 1 is wrapped up in and is contained in the cast-in-situ reinforced concrete, two prefabricated plugs 2 are with the hollow section of body 1 two ends shutoff formation sealing, the prefabricated plug 2 of at least one end that it is characterized in that described hollow section is provided with back bonding overlapping layers 3, back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, be provided with stiffener 5 in the body 1, stiffener 5 for stiffening rib or/and bracing boom or/and reinforcing rib or/and add wring.In each accompanying drawing, 1 is body, and 2 is prefabricated plug, and 3 is overlapping layers, below in each accompanying drawing, number identically, its explanation is identical.As shown in Figure 1, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, and the prefabricated plug 2 of its described hollow section is provided with back bonding overlapping layers 3, and back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1.As Figure 10, Figure 11, Figure 12, Figure 13, shown in Figure 14, be provided with stiffener 5 in the body 1.As shown in figure 10, stiffener 5 is stiffening rib, bracing boom and reinforcing rib.As shown in figure 11, be provided with stiffener 5 in the body 1, stiffener 5 is a reinforcing rib.

Feature of the present invention is that also described overlapping layers 3 links into an integrated entity with body 1.As shown in Figure 2, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, and back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and its described overlapping layers 3 links into an integrated entity with body 1.

Feature of the present invention is that also described overlapping layers 3 is to be formed by stacking more than two layers.As shown in Figure 3, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, and back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and its described overlapping layers 3 is that two stacked closing form.

Feature of the present invention is that also described overlapping layers 3 is mortar or concrete overlapping layers.As shown in Figure 4, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, and the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, and back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and its described overlapping layers 3 is a concrete.

Feature of the present invention also is to be provided with reinforce 4 at least one of described body 1, prefabricated plug 2, overlapping layers 3.As shown in Figure 5, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, be provided with reinforce 4 in its described body 1 and the overlapping layers 3, diagram reinforce 4 is a gauze wire cloth.

Feature of the present invention also is at least a in the net of fiber, reinforcing bar, steel wire or above-mentioned material or the thin band of described reinforce 4.As shown in Figure 6, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, and back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and its described reinforce 4 is thin band.

Feature of the present invention is that also described thin band reinforce 4 is at least a thin band in porose, seam, raw edges, drift bolt, pin, sour jujube head or the convex-concave.As shown in Figure 7, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, and back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and its described thin band reinforce 4 is the thin band of band sour jujube head.

Feature of the present invention is that also described reinforce 4 stretches into anchoring the overlapping layers 3 from body 1, perhaps stretches into anchoring in the overlapping layers 3 from prefabricated plug 2, perhaps stretches into anchoring in the overlapping layers 3 simultaneously from body 1 and prefabricated plug 2.As shown in Figure 8, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, its described reinforce 4 stretches into anchoring the body 1 from plug 2, also has reinforce 4 to stretch into anchoring the overlapping layers 3 from body 1 simultaneously.

Feature of the present invention is that also described reinforce 4 exposes outside the hollow section from body 1, prefabricated plug 2 or overlapping layers 3 at least one.As shown in Figure 9, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, and back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and its described reinforce 4 exposes outside the hollow section from body 1.

Feature of the present invention also is to be provided with in the described body 1 at least one stiffener 5, and stiffener 5 is stiffening rib, bracing boom, reinforcing rib, adds at least one in wringing.As shown in figure 10, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, be provided with stiffener 5 in its described body 1, diagram stiffener 5 is stiffening rib, bracing boom and reinforcing rib.As shown in figure 11, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, and back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and its described stiffener 5 is a reinforcing rib.

Feature of the present invention is that also described stiffener 5 is whole hollow unit, local hollow unit or fills out core component.As shown in figure 12, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and its described stiffener 5 is whole hollow unit and local hollow unit.As shown in figure 13, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, and back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and its described stiffener 5 is whole hollow unit.

Feature of the present invention also is to be provided with reinforce 4 in the described stiffener 5, and perhaps reinforce 4 is outside stiffener 5 exposes the body 1 of hollow section, and perhaps stiffener 5 exposes outside the body 1.As shown in figure 14, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, and back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, is provided with reinforce 4 in its described stiffener 5.As shown in figure 15, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, its described stiffener 5 exposes outside the body 1, simultaneously, the reinforce 4 that is provided with in the stiffener 5 is also outside stiffener 5 exposes the body 1 of hollow section.

Feature of the present invention is that also the commissure of the tube wall of described body 1 is formed with a raised line 6 along body 1 axis direction.As shown in figure 16, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and the commissure of the tube wall of its described body 1 is formed with a raised line 6 along body 1 axis direction.

Feature of the present invention is that also the external surface at least one of described body 1, prefabricated plug 2 or overlapping layers 3 is provided with indent structure 7.As shown in figure 17, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, the external surface of its described body 1 is provided with indent structure 7, and diagram indent structure 7 is a pit.

Feature of the present invention also is at least a in groove, inner corner trim, hole, the chamfering of described indent structure 7.As shown in figure 18, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, and back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and its described indent structure 7 is respectively inner corner trim and chamfering.As shown in figure 19, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, and back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and its described indent structure 7 is respectively groove and hole.

Feature of the present invention is that also the external surface of described body 1 is provided with raised line 6 or boss 8 or the two combination.As shown in figure 20, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, and back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and the external surface of its described body 1 is provided with projection 8.

Feature of the present invention is that also the surface of described body 1 is provided with angle 9.As shown in figure 21, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, and back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and the surface of its described body 1 is provided with angle 9.

Feature of the present invention is that also the angle 9 of described body 1 is provided with the base plate 10 of disjunctor with it.As shown in figure 22, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and the angle 9 of its described body 1 is provided with the base plate 10 of disjunctor with it.

Feature of the present invention is that also described base plate 10 exceeds the outside left formation toss 11 of body 1.As shown in figure 23, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and the outside left that its described base plate 10 exceeds body 1 forms toss 11.

Feature of the present invention is also that described body 1 or overlapping layers 3 are provided with and is used for the connector 12 that docks with another root hollow section.As shown in figure 24, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, its described overlapping layers 3 is provided with and is used for the connector 12 that docks with other hollow section, and diagram connector 12 is rod member and hole.

Feature of the present invention is that also described connector 12 is at least a of wedge mouth, tenon, hole, latch, cutting ferrule, tongue and groove, male and female groove, iron wire or weldment.As shown in figure 25, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, and back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and its described connector 12 is the socket joint connector.

Feature of the present invention is that also described body 1 is pipe, polygon pipe or arc angle polygon pipe.As shown in figure 26, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, and back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and its described body 1 is the polygon pipe.

Feature of the present invention is that also the surface of described body 1 is at least a of even surface, corrugated surface, step surface, male and fomale(M﹠F), helicoid or exasperate.As shown in figure 27, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, and back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and the surface of its described body 1 is a matsurface.

Feature of the present invention is that also the material of described body 1 is metal, plastics or cement gel ramming material.As shown in figure 28, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, and back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and the material of its described body 1 is the cement gel ramming material.

Feature of the present invention is that also described body 1 is provided with the base plate 10 of disjunctor with it.As shown in figure 28, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, and back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and its described body 1 is provided with the base plate 10 of disjunctor with it.

Feature of the present invention is that also described base plate 10 exceeds the outside left formation toss 11 of body 1.As shown in figure 29, two plugs, 2 closed tubes, 1 two ends form the hollow section of sealing, the prefabricated plug 2 of hollow section is provided with back bonding overlapping layers 3, back bonding overlapping layers 3 is bonded to whole hollow unit with prefabricated plug 2 and body 1, and the outside left that its described base plate 10 exceeds body 1 forms toss 11.

During the invention process, size according to the hollow section size, make plug 2 and elasticity matched moulds in advance, the mould of cleaning out and brushing release agent or be equipped with the film of being convenient to the demoulding is placed on the smooth work top, evenly spread out and put on slurries such as skim cement paste, lay reinforces 4 such as fleece then as required, compress gently and fit on the feed pulp layer, fabric slurry again paves, according to different requirements, reinforces such as fleece 4 can be laid multilayer in body, treat that it is dry a little, be arranged at a prefabricated plug 2 in the die cavity on request, mould twisted to close disturb, and fix, pour into slurry in commissure from another openend of die cavity with fastener, and press closely from interior, again another prefabricated plug is installed on openend sealing, treat its setting and harden after, the demoulding promptly gets hollow section, on plug 2, smear into overlapping layers 3 again, promptly obtain hollow section of the present invention with cement mortar.In its manufacturing process, also can be according to the product requirement difference, as prefabricated stiffener 5 being set, thereby obtain having in the pipe hollow section of stiffener at its hollow section middle part.

Claims (10)

1. cast-in-situ reinforced concrete or prestressed reinforced concrete hollow slab, comprise steel bar concrete, body (1), prefabricated plug (2), body (1) is wrapped up in and is contained in the cast-in-situ reinforced concrete, two prefabricated plugs (2) form the shutoff of body (1) two ends the hollow section of sealing, the prefabricated plug of at least one end (2) that it is characterized in that described hollow section is provided with back bonding overlapping layers (3), back bonding overlapping layers (3) is bonded to whole hollow unit with prefabricated plug (2) and body (1), be provided with stiffener (5) in the body (1), stiffener (5) for stiffening rib or/and bracing boom or/and reinforcing rib or/and add wring.
2. a kind of cast-in-situ reinforced concrete according to claim 1 or prestressed reinforced concrete hollow slab is characterized in that described overlapping layers (3) and body (1) link into an integrated entity.
3. a kind of cast-in-situ reinforced concrete according to claim 1 or prestressed reinforced concrete hollow slab is characterized in that described overlapping layers (3) is to be formed by stacking more than two layers.
4. a kind of cast-in-situ reinforced concrete according to claim 1 or prestressed reinforced concrete hollow slab is characterized in that described overlapping layers (3) is mortar or concrete overlapping layers.
5. a kind of cast-in-situ reinforced concrete according to claim 1 or prestressed reinforced concrete hollow slab is characterized in that being provided with reinforce (4) at least one of described body (1), prefabricated plug (2), overlapping layers (3); Perhaps reinforce (4) is at least a in the net of fiber, reinforcing bar, steel wire or above-mentioned material or the thin band; Perhaps thin band reinforce (4) is at least a thin band in porose, seam, raw edges, drift bolt, pin, sour jujube head or the convex-concave.
6. a kind of cast-in-situ reinforced concrete according to claim 5 or prestressed reinforced concrete hollow slab, it is characterized in that described reinforce (4) stretches into anchoring the overlapping layers (3) from body (1), perhaps from prefabricated plug (2), stretch into anchoring in the overlapping layers (3), perhaps from body (1) and prefabricated plug (2), stretch into anchoring in the overlapping layers (3) simultaneously; Perhaps reinforce (4) exposes outside the hollow section from body (1), prefabricated plug (2) or overlapping layers (3) at least one.
7. according to described a kind of cast-in-situ reinforced concrete of arbitrary claim in the claim 1 to 5 or prestressed reinforced concrete hollow slab, it is characterized in that being provided with at least one stiffener (5) in the described body (1), stiffener (5) is stiffening rib, bracing boom, reinforcing rib, adds at least one in wringing; Perhaps stiffener (5) is whole hollow unit, local hollow unit or fills out core component; Perhaps be provided with reinforce (4) in the stiffener (5), perhaps reinforce (4) is outside stiffener (5) exposes the body (1) of hollow section, and perhaps stiffener (5) exposes outside the body (1); Perhaps the commissure of the tube wall of body (1) is formed with a raised line (6) along body (1) axis direction.
8. according to described a kind of cast-in-situ reinforced concrete of arbitrary claim in the claim 1 to 5 or prestressed reinforced concrete hollow slab, it is characterized in that the external surface at least one of described body (1), prefabricated plug (2) or overlapping layers (3) is provided with indent structure (7); Perhaps indent structure (7) is at least a in groove, inner corner trim, hole, the chamfering; Perhaps the external surface of body (1) is provided with raised line (6) or boss (8) or the two combination; Perhaps the surface of body (1) is provided with angle (9); Perhaps the angle (9) of body (1) is provided with the base plate of disjunctor (10) with it; Perhaps base plate (10) exceeds the outside left formation toss (11) of body (1).
9. according to described a kind of cast-in-situ reinforced concrete of arbitrary claim in the claim 1 to 5 or prestressed reinforced concrete hollow slab, it is characterized in that described body (1) or overlapping layers (3) are provided with and be used for the connector (12) that docks with another root hollow section; Perhaps connector (12) is at least a of wedge mouth, tenon, hole, latch, cutting ferrule, tongue and groove, male and female groove, iron wire or weldment; Perhaps body (1) is pipe, polygon pipe or arc angle polygon pipe; Perhaps the surface of body (1) is at least a of even surface, corrugated surface, step surface, male and fomale(M﹠F), helicoid or exasperate.
10. according to described a kind of cast-in-situ reinforced concrete of arbitrary claim in the claim 1 to 5 or prestressed reinforced concrete hollow slab, the material that it is characterized in that described body (1) is metal, plastics or cement gel ramming material; Perhaps body (1) is provided with the base plate of disjunctor (10) with it; Perhaps base plate (10) exceeds the outside left formation toss (11) of body (1).
CNA2008103009534A 2004-11-02 2004-11-02 Cast-in-place reinforced concrete or prestressed reinforced concrete hollow slab CN101311440A (en)

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CNB2004101554237A Division CN100381671C (en) 2004-11-02 2004-11-02 Hollow pipe for concrete filling

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107605104A (en) * 2017-09-28 2018-01-19 江苏联禹智能工程有限公司 A kind of special stiffener of intelligent building engineering

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2403840Y (en) * 1999-11-22 2000-11-01 邱则有 Preset hollow hard thin-wall member type cast-in-place reinforced concrete hollow slab
CN1297095A (en) * 1999-11-22 2001-05-30 邱则有 In-situ cast hollow reinforced concrete slab pre-provided with hollow hard thin-wall members and its construction method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2403840Y (en) * 1999-11-22 2000-11-01 邱则有 Preset hollow hard thin-wall member type cast-in-place reinforced concrete hollow slab
CN1297095A (en) * 1999-11-22 2001-05-30 邱则有 In-situ cast hollow reinforced concrete slab pre-provided with hollow hard thin-wall members and its construction method
CN1114738C (en) * 1999-11-22 2003-07-16 邱则有 In-situ cast hollow reinforced concrete slab pre-provided with hollow hard thin-wall members and its construction method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107605104A (en) * 2017-09-28 2018-01-19 江苏联禹智能工程有限公司 A kind of special stiffener of intelligent building engineering

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