CN201103182Y

CN201103182Y - PCM cast-in-situ reinforced concrete hidden rib non-plate internal mold

Info

Publication number: CN201103182Y
Application number: CNU2007201551543U
Authority: CN
Inventors: 张颖
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-07-09
Filing date: 2007-07-09
Publication date: 2008-08-20
Anticipated expiration: 2017-07-09

Abstract

A dark-tight-rib no plate typed internal mold used for PCM cast-in-situ reinforcement concrete is provided, which pertains to the technical field of building structure and is especially applicable to beam or beamless hollow floor in industrial building and civil building. The internal mold adopts the technology in which a precast hollow cavity component is used in dark-tight-rib hollow floor made by once-molding concreting and is characterized in that the dark-tight-rib no plate typed internal mold is formed with reinforcing steel bars or steel concrete ribs which are arranged in grid pattern and empty cavity components which are formed between the ribs in a diamond gap or a rectangle gap; the height of the ribs is the same as the height of the empty cavity components, and the shape of the ribs is matched with the shape of the empty cavity components. By the floor system, the weight of the floor formed by the once-molding concreting can be greatly reduced; earthquake resistance performance can be improved; sound insulation effect is good and users can design room compartments and decorate at will.

Description

The dark close rib plateless internal mold of a kind of PCM cast-in-situ reinforced concrete

Technical field

The utility model is the dark close rib plateless internal mold of a kind of PCM cast-in-situ reinforced concrete, belongs to the building structure technology field.What be particularly useful for industry and civilian construction has beam, no a beam cassette ceiling, and it is the technology of use prefabricated cavity member in the hollow floor slab with hidden and dense ribs of one-shot forming concreting.

Background technology

The cast-in-situ hollow building roof structural system that in building structure field, adopts usually, use hollow body parallel longitudinal to be arranged in the plate, there is open defect in such structure aspect the two-way in length and breadth power transmission of floor, and reinforcing bar, concrete amount are still bigger than normal, and increases building deadweight and construction cost.In recent years, in the bigger building of span, use cast-in-place close rib building roof more and more,, alleviate the superstructure deadweight to save reinforcing bar, concrete consumption.Present cast-in-place close rib building roof mostly adopts large-scale die for special purpose casing forming, the Mold Making difficulty is big, constructional difficulties, the construction cost height, and close rib ceiling influence is attractive in appearance, also need to improve outward appearance by the mode of hanging item, and no girth member in the formwork, thereby the bulk strength of formwork and rigidity are relatively poor, are prone to the phenomenon that formwork breaks.

Summary of the invention

The purpose of this utility model provides the dark close rib plateless internal mold of a kind of PCM cast-in-situ reinforced concrete.Use this internal mold can make floor weight reduction significantly with its one-shot forming concreting, improve anti-seismic performance, and have good soundproof effect, be convenient to the user again and design the room voluntarily at interval and implement decorations.

For reaching above-mentioned technical purpose, the technical solution that the utility model adopted comprises following content: the dark close rib plateless internal mold of a kind of PCM cast-in-situ reinforced concrete, by the rib that is made of reinforcing bar or steel and concrete that is latticed arrangement be placed on the rectangle that forms between the rib or the Cavity structural member in the rhombus space constitutes, the height of described Ji rib and shape identical with Cavity structural member cooperatively interacts.

Described rib is to be watered jointly by reinforcing bar, steel or other stressed materials and concrete to smash the primary structure member that forms.

Described rib is rectangular or trapezoidal in vertical cross-section, and when trapezoidal, the size of its underpart is bigger, and the size on top is less.The formed grid of described rib is rectangle or rhombus, promptly girt strip can be quadrature also can be oblique.

Described Cavity structural member is the member that is had cavity by the middle part that fortifying fibre mortar or reinforced-concrete, support member constitute.The top of described Cavity structural member or bottom or top and the bottom along continuous straight runs simultaneously are provided with reinforcing rib, and the outer segment distance of Cavity structural member is all stretched out at these reinforcing rib two ends.

Described reinforcing rib is respectively reinforcing bar, prestressed reinforcement, steel wire, steel fibre, fibre, bundle or other strength bar.Described Cavity structural member cross section in vertical direction is rectangle or inverted trapezoidal structure, and matches with the cross sectional shape of rib.

By adopting above-mentioned technical solution, make the utility model obtain following positive technique effect: structure at first by adopting Cavity structural member and cooperating the latticed rib that adopts steel concrete to make to cooperatively interact and connect, the speed of application of superstructure is improved, simultaneously owing to used a large amount of prefabricated cavity members, the cost of building is reduced, and in the process of construction, reduce the consumption of template; Adopt the superstructure of said structure, construction institute only need the latticed rib of on-the-spot pouring this part, just difficulty of construction is reduced; Owing to adopt above-mentioned technology to make the thickness of dark close rib basic identical, reduced floor height, effective usage space of increase building with the thickness of cavity prefabricated units; Latticed rib by adopting the trapezoid cross section and with the corresponding Cavity structural member of its shape, after being stressed, vertical pressure can be resolved into lateral pressure to rib, the pressure that single Cavity structural member is suffered reaches whole superstructure and bears; By the reinforcing rib and welding of the reinforcing bar in the latticed rib or colligation stretch out is set in Cavity structural member, make prefabricated Cavity structural member behind placing of concrete, form an integral body with above-mentioned asking of latticed rib, thus the intensity and the rigidity of increase building.

Description of drawings

Fig. 1 is the upward view of Cavity structural member;

Fig. 2 is the front view of Cavity structural member;

Fig. 3 is the lateral view of Cavity structural member;

Fig. 4 is the vertical view of Cavity structural member:

Fig. 5 is the vertical view with latticed rib superstructure;

Fig. 6 is the sectional view with latticed rib superstructure.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further detailed.

Shown in Fig. 1-4, the member shown in the figure is a concrete for making, and this member upper/lower terminal face is rectangle or rhombus, and the side is rectangle or rhombus, and its middle part is the corresponding cavity of shape of shape and its profile.Be provided with reinforcing rib 1 in the upper surface 4, this reinforcing rib 1 is arranged in mortar or concrete, the requirement of strength during according to use, and along continuous straight runs be arranged in parallel.When requirement of strength is higher, above-mentioned reinforcing rib 1 can be orthogonal thereto or oblique arrange in order: under or the situation that requirement of strength is not high less, also can not establish reinforcing rib 1 in the size of member; Under the very high situation of requirement of strength, be provided with reinforcing rib 1 equally in its lower surface 2.The height of reinforcing rib 1, thickness and whether dispose reinforcing rib and can determine by Structural Design Requirement, thus the strength and stiffness of Cavity structural member of the present utility model are improved greatly.Simultaneously, it has simple in structure, characteristics such as watertightness good, in light weight, convenient construction and transport.Reinforcing rib 1 is arranged in Cavity structural member or adopt reinforcing mat or both combinations, reinforcing rib 1 is respectively reinforcing bar, prestressed reinforcement, steel wire, steel fibre, fibre, bundle or other strength bar, and reinforcing mat is respectively that steel mesh reinforcement, gauze wire cloth, fleece, nonwoven are gluing arranges net or other strengthens cloth, net.These muscle, silk, net are respectively applied for different occasions, and the structure of formation, shape, local structure, loading characteristic are also just different, bear main active force as reinforcing bar, and silk, host will bear by-local forces what and the anticracking structure is used.Prestressed reinforcement can be given structure base plate precharge pressure, makes the structure base plate strength higher, and resistance to deformation and crack ability are stronger.Because Cavity structural member and structure base plate have reinforcing rib or reinforcing mat, therefore, whole cavity component strength height, stressed power transmission is more reasonable, uses this Cavity structural member to pour into dark close rib plateless hollow building cover, can hang and carry the greater weight object.When making above-mentioned Cavity structural member, also reinforcing rib can be provided with and reveal muscle, reveal net or reveal bundle in addition.Dew muscle or dew net can improve the adhesion stress between Cavity structural member and the cast-in-place rib better like this, prevent cast-in-place and prefabricated combination interface cracking effectively, help stressed power transmission of superstructure and cooperative bearing, reveal muscle, reveal net or reveal the formed structure of bundle, shape and effect incomplete same.In the above-mentioned Cavity structural member, the thickness of side 3 can alleviate the weight of whole cavity member so better preferably less than the thickness of its upper surface 4 and lower surface 2.The external surface of Cavity structural member is the rough surface of corrugated or dentation or plucking or other shape.Like this, Cavity structural member can improve the adhesion stress between it and the rib better when being applied to floor.Cavity structural member is the layer structure more than at least two layers, and by one deck cementitious matter one deck cloth or net, multilayer build-up such as one deck cementitious matter is glued again forms for one deck cementitious matter one deck cloth or net again, and cloth or net are at least more than one deck.Cementitious matter can be various types of cement, resin or organic or inorganic or mixture bonding adhesive, and also suitably admixture gathers materials or filler.

Also be provided with support member in the above-mentioned cavity, being shaped as of support member is cross, and the height of support member generally should be identical with the interior outage degree of cavity, and such being provided with can make the effect of upper and lower end face by support member, bear pressure jointly, prevent from upper surface is crushed.Support member is made by fortifying fibre cement mortar, reinforced-concrete, timber, organic compound or other materials.In the size of Cavity structural member big or desired strength higher in, can use the support member of intersecting parallels, under or the situation that requirement of strength is low less, can use yi word pattern to support or do not use support member in the Cavity structural member size.The filling method that also has a kind of cavity in addition, cavity inside divide or all filling or foamed plastic pasting, expanded perlite, expanded vermiculite, foaming or light materials such as aerated light concrete, rock wool, mineral wool or glass wool.Cavity structural member has insulation and heat insulation and sound insulation property preferably like this, the structure of different materials and effect, and the function difference can be selected different filling methods for use according to actual design.Also can be reserved with the hole of penetration pipe on the Cavity structural member or be embedded with the sleeve pipe of threading, the layout of more convenient like this netting twine and construction.

As shown in Fig. 5 and Fig. 6, the use of the Cavity structural member in the utility model.In Fig. 5, above-mentioned Cavity structural member is arranged in the structure of the corresponding rib formation of size and size and cavity, and above-mentioned inside is provided with rib steel muscle 8.Use the process of above-mentioned Cavity structural member to be generally following process, at first, according to designing requirement, determine the size and the intensity of dark close rib, the layout of number of steel bars and reinforcing bar, determine the size of Cavity structural member by these data, data such as the size of support member and intensity are made corresponding Cavity structural member, during construction according to the relevant parameter of Cavity structural member, the latticed rib steel muscle that is provided with on template, place Cavity structural member then in grid, carry out concrete pouring at last, by adopting the Cavity structural member of said structure, using the purpose of reinforcing rib is bulk strength and the rigidity that further increases Cavity structural member, increases Cavity structural member and is connected with the integral body of dark close rib.The superstructure of made is not only saved cost, and its main characteristics is to save floor height, and the thickness of the size of the superstructure after the pouring is identical with the thickness of cavity, forms the plateless cast-in-situ hollow building roof.Two surfaces up and down of plateless cast-in-situ floor are that direct upper and lower end face by the Cavity structural member body constitutes, and need not need pour into a mould certain thickness concrete slab in the top or the bottom of member as existing cast-in-situ hollow building roof technology.

Claims

1. dark close rib plateless internal mold of PCM cast-in-situ reinforced concrete, it is characterized in that: by reinforcing bar that is latticed arrangement or steel bar concrete concrete rib and be placed on the rectangle that forms between the rib or the Cavity structural member in the rhombus space constitutes, the height of described rib and shape identical with Cavity structural member cooperatively interacts.

2. the dark close rib plateless internal mold of a kind of PCM cast-in-situ reinforced concrete according to claim 1 is characterized in that: described rib is to be watered jointly by reinforcing bar and concrete to smash the primary structure member that forms.

3. the dark close rib plateless internal mold of a kind of PCM cast-in-situ reinforced concrete according to claim 1, it is characterized in that: described rib is rectangular or trapezoidal in vertical cross section, and when trapezoidal, the size of its underpart is bigger, and the size on top is less.

4. the dark close rib plateless internal mold of a kind of PCM cast-in-situ reinforced concrete according to claim 1, it is characterized in that: the formed grid of described rib is rectangle or rhombus, its rib can be a quadrature, also can be oblique.

5. the dark close rib plateless internal mold of a kind of PCM cast-in-situ reinforced concrete according to claim 1, it is characterized in that: the middle part that described Cavity structural member is made by fortifying fibre cement mortar or reinforced-concrete has the member of cavity.

6. the dark close rib plateless internal mold of a kind of PCM cast-in-situ reinforced concrete according to claim 1, it is characterized in that: the top of described Cavity structural member or bottom or upper and lower part are provided with reinforcing rib simultaneously in the horizontal direction, and all stretch out outside the Cavity structural member at these reinforcing rib two ends.

7. the dark close rib plateless internal mold of a kind of PCM cast-in-situ reinforced concrete according to claim 1, it is characterized in that: described reinforcing rib is respectively reinforcing bar, prestressed reinforcement, steel wire, steel fibre, fibre, bundle.

8. the dark close rib plateless internal mold of a kind of PCM cast-in-situ reinforced concrete according to claim 1, it is characterized in that: described Cavity structural member is rectangle or inverted trapezoidal structure in vertical cross section, and matches with the cross sectional shape of rib.