CN200975043Y - Gypsum cavity combined mould - Google Patents

Abstract

The utility model discloses a plaster cavity segment mold which includes a plaster layer (1) and a cavity (2) and is characterized in that the inner section of the cavity (2) is in the arc shape or parabolic shape; the outer section of the plaster layer (1) is trapezoidal and the bottom is in the neat rectangular shape. The segment mold has advantages of convenient processing and manufacturing, good stress status, sound insulation, heat preservation, good fire proof performance, light structure weight, good crack resistance and strong tensile strength.

Description

Gypsum cavity groups matched moulds

Technical field

The utility model relates to a kind of packing material of concrete dense-rib superstructure, relates in particular to a kind of gypsum combination die.

Background technology

The superstructure of steel reinforced concrete structure building adopts close girt strip plate can make superstructure stressed comparatively even, reduces concrete and amount of reinforcement, reduces deck-molding, and the building headroom is increased, and obtains bigger use space.But because operation is more, and the formwork erection more complicated delays the duration, increase construction investment during the construction of close girt strip plate.The cast-in-place plate of close rib is often thinner, and sound insulation, heat insulation effect are bad.

For above-mentioned defective in overcoming the close rib building roof construction and using, make it to apply widely, some packing materials have just appearred.The general gas concrete piece that adopts, cement perlite piece or rock cotton board, polyphenyl foam plate etc. made packing material, is that present builing industry is used more floor system.Have the advantages that rigidity is big, shock resistance strong, deadweight is low, load is high, can save reinforcing bar, concrete consumption significantly, reduce the building deadweight, reduce beam, post and basis and drop into, reduce construction costs; The concrete floor system of moulding, smooth in appearance is smooth, and sound insulation value is good.

Chinese patent notice of authorization number " CN2158772 " disclosed a kind of name on 03 16th, 1994 and has been called " ribbed slab floor filling block ", and it utilizes polystyrene to make the filling block of ribbed slab floor as plate face, frame; Chinese patent publication number " CN2761759 ", disclosed a kind of name on 03 01st, 2006 and be called " a kind of dark close rib plateless superstructure Cavity structural member ", make the noggin piece of no beam close rib building roof with concrete prefabricated thin-walled Cavity structural member, all can satisfy the construction requirement of no beam close rib building roof, but its cavity is right angle frame type structure, be that the plane is stressed during use, do not possess three-dimensional stressed characteristic, compressive strength is not good, Chinese patent publication number " CN2761759 ", disclosed " a kind of dark close rib plateless superstructure Cavity structural member ", the method for filling support member in cavity has solved this difficult problem, but has increased construction intensity and construction cost.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned shortcoming and a kind of processing and fabricating of providing is easy, and stress is good, and sound insulation, insulation, fireproof performance are good, and dead load is little, and crack resistance is good, the gypsum cavity groups matched moulds that tensile strength is high.

The technical scheme that the utility model technical solution problem is adopted is:

Gypsum cavity groups matched moulds comprises gypsic horizon and cavity, and wherein: the cross section was curved in the cross section was in the cavity.

Gypsum cavity groups matched moulds comprises gypsic horizon and cavity, and wherein: the cross section is circular arc or parabola shaped in the cavity.

Above-mentioned gypsum cavity groups matched moulds, wherein: the outer cross section of gypsic horizon is trapezoidal, and the bottom surface is smooth rectangle.

The utility model compared with prior art, by above technical scheme as can be known: the outer cross section of gypsic horizon is trapezoidal, and the cross section is circular-arc or parabolic shape in the cavity, thereby Mold Making is fairly simple in the process, is convenient in demoulding, and is easy to large-scale production; The cross section is the arcuation layout in the gypsic horizon, utilizes the principle of arching, and the floor framing that bears floor load is formed by some die combination, thereby stress is good; Be applied to build flooring, can make at the bottom of the plate smooth smoothly, cannot see beam, become " arch without beam "; Sound insulation, insulation, fireproof performance are good.The superstructure that adopts combination die to fill because gypsum unit weight is low, so dead load is less, can be saved amount of reinforcement, and building costs is reduced; Processing can be carried out on the building site, avoids a large amount of damages in the transportation.The product serviceability rate is higher; Crack resistance is good, the tensile strength height; When filling close rib building roof end or bight, because combination die and frame size do not meet, can cut arbitrarily, make it to conform to frame size; The mould internal cavity is buried power and telecommunication line in advance, makes it to become concealed wire, and favourable architectural appearance is smooth, smooth.

The principle that can make full use of arching is born floor load, and after soon module combinations was made superstructure, the flooring pressure that single Cavity structural member is subjected to was frame around reaching by arch, and frame is outward a concrete ribbed beams, and the Cavity structural member globality is better.In the use, two identical combination die cavitys are formed by stacking relatively, and burnishing surface exposes, and becomes end face and bottom surface, is cast in place concrete plate more than the end face.So end face is again as template.The bottom surface is the bottom surface of close rib building roof.After close girt strip was built, the bottom surface was smooth smooth.Cannot see beam, become " arch without beam ".Be reinforced concrete ribbed beam between the combination die, because the outer cross section of module is trapezoidal, after two modules are superimposed, make Mi Leiliangding, bottom section wide slightly, the cross section, middle part is narrow slightly.Do two benefits like this: 1, lower module can be avoided it to come off under gravity and vibration effect and fall down because trapezoidal " wedge shape " acts on; 2, close girt strip is wide slightly in the pressure zone cross section, increase compression area, and the cross section is narrower near middle part (neutral line of beam), to stressed nothing influence.That is to say, both guaranteed the build-in of combination die, make close girt strip stressed comparatively reasonable again.

Because the cavity effect of combination die greatly improves sound insulation, insulation, the fireproof performance of close rib building roof.The superstructure that adopts combination die to fill, because gypsum unit weight is low, cavity volume is bigger in addition, so dead load is little, can save amount of reinforcement, and building costs is reduced; Cast processing can be carried out on the building site, avoids a large amount of damages in the transportation.The product serviceability rate is higher; Crack resistance is good, the tensile strength height; When filling close rib building roof end or bight, when combination die and frame size do not meet, can cut arbitrarily, make it to conform to frame size; The mould internal cavity is buried power and telecommunication line in advance, makes it to become concealed wire, favourable architectural appearance smooth, smooth.

The specific embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the surface structure schematic diagram of Fig. 1;

Fig. 4 is user mode figure of the present utility model;

Fig. 5 is the A-A sectional view of Fig. 4;

Fig. 6 is the B-B sectional view of Fig. 4.

Mark among the figure:

1, gypsic horizon, 2, cavity, 3, close girt strip, 4, concrete slab.

The specific embodiment

Below in conjunction with accompanying drawing and preferred embodiment, to the specific embodiment, structure, feature and effect thereof according to the gypsum cavity groups matched moulds that the utility model proposes, describe in detail as after.

Referring to Fig. 1-3: gypsum cavity groups matched moulds, comprise gypsic horizon 1 and cavity 2, wherein: the cross section is circular-arc or parabolic shape in the cavity, and the outer cross section of gypsic horizon is trapezoidal, and the bottom surface is smooth rectangle.

Referring to Fig. 4, during use, some die combination of the present utility model are got up according to the framework colum network size, place on the construction formwork.Two same size module cavitys are formed by stacking relatively.Be close girt strip 3 between each module, the module end face is a cast in place concrete plate 4, with beam, the colligation of slab muscle good after, get final product concreting.Treat that concrete reaches design strength, dismountable bottom construction formwork, whole close rib building roof just has been shaped.At this moment, the bottom surface is smooth smooth.

Claims (5)

1, a kind of gypsum cavity groups matched moulds comprises gypsic horizon (1) and cavity (2), and it is characterized in that: the interior cross section of cavity (2) is curved.

2, gypsum cavity groups matched moulds as claimed in claim 1 is characterized in that: the interior cross section of cavity (2) is circular arc.

3, gypsum cavity groups matched moulds as claimed in claim 1 is characterized in that: the interior cross section of cavity (2) is parabola shaped.

4, as the described gypsum cavity groups of one of claim 1-3 matched moulds, it is characterized in that: the outer cross section of gypsic horizon (1) is trapezoidal.

5, gypsum cavity groups matched moulds as claimed in claim 4, it is characterized in that: the bottom surface is smooth rectangle.

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