CN201265200Y

CN201265200Y - Light polypropylene fiber concrete composite board

Info

Publication number: CN201265200Y
Application number: CNU2008201641169U
Authority: CN
Inventors: 郑建军; 程功; 邵林
Original assignee: FANGYUAN CONSTRUCTION GROUP Co Ltd
Current assignee: FANGYUAN CONSTRUCTION GROUP Co Ltd
Priority date: 2008-09-08
Filing date: 2008-09-08
Publication date: 2009-07-01
Anticipated expiration: 2018-09-08

Abstract

The utility model relates to a light-weighted polypropylene fiber concrete composite plate which comprises an upper layer, a middle layer and a lower layer; the middle layer is a heat preserving layer; the upper layer and the lower layer are polypropylene fiber concrete plates; trough type steel frames are covered around the upper layer, the middle layer and the lower layer; the trough type steel frames integrate and connect with the upper layer, the middle layer and the lower layer. The heat preserving layer is a polyphenyl plate. The utility model discloses a polypropylene fiber concrete composite plate which has the advantages of lighter self-weight, improved bearing capability, reduced crack width, improved anti-impact performance and anti-fatigue performance and lower project cost.

Description

Light-duty polypropylene fiber concrete composite plate

Technical field

The utility model relates to building unit, specifically is a kind of composite plate.

Background technology

In space truss structure, generally use the steel bar girder concrete slab at present, this class plate by upper and lower two blocks of ordinary concrete plates, middle insulation layer and all around steel bar girder form.The weak point of this class plate is: (1) ordinary concrete plate face is easy to cracking, damages, and water resistance is poor; (2) because steel bar girder rigidity is little all around, in order to improve the integral rigidity of composite plate, must increase the thickness of upper and lower ordinary concrete plate, make that the composite plate deadweight is excessive, the cross section of lower wire shelf structure increases, integrated engineering cost height; (3) steel bar girder is welded by bar dowel all around, construction more complicated, the construction costs of increase composite plate.

Summary of the invention

In order to solve the problems referred to above of existing steel bar girder concrete slab, the utility model proposes that a kind of weight reduction, weight capacity strengthen, crack width reduces, shock resistance and anti-fatigue performance improves, construction costs reduces polypropylene fiber concrete network frame plate.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of light-duty polypropylene fiber concrete composite plate, comprise upper, middle and lower-ranking, described middle level is an insulation layer, described the upper and lower are the polypropylene fiber concrete plate, the periphery of described upper, middle and lower-ranking is coated with the U-steel framework, and described U-steel framework connects described upper, middle and lower-ranking one.

Further, described insulation layer is a polyphenyl plate.

Technical conceive of the present utility model is: the U-steel framework big with rigidity fuses upper plate, lower plate and polyphenyl plate, and upper and lower plate and U-steel framework play the load-bearing effect, and polyphenyl plate has the heat-insulation and heat-preservation function, integrates load-bearing, is incubated; The polypropylene fiber concrete plate can increase the shock resistance and the fatigue strength of plate body, reduces the crack width of plate body, improves the water resistance of plate body, makes the weight reduction of composite plate; Save two leveling layers, alleviated the weight of roof system, the cross section of having reduced the lower wire shelf structure has reduced the integrated engineering cost.

The beneficial effects of the utility model are: weight reduction, weight capacity strengthen, crack width reduces, shock resistance and anti-fatigue performance improves, construction costs reduces.

Description of drawings

Fig. 1 is a sectional drawing of the present utility model.

Fig. 2 is the schematic diagram of U-steel framework described in the utility model.

Fig. 3 is the arrangement of reinforcement schematic diagram of upper and lower layer described in the utility model.

The specific embodiment

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

With reference to Fig. 1-3: light-duty polypropylene fiber concrete composite plate, comprise upper, middle and lower-ranking, described middle level is the polyphenyl plate heat preserving layer, described the upper and lower are the polypropylene fiber concrete plate, the periphery of described upper, middle and lower-ranking is coated with U-steel framework 4, and described U-steel framework 4 connects described upper, middle and lower-ranking one.

Adopting four thickness in the present embodiment is that 2mm, web height are that 80mm, top flange width are that 30mm, bottom flange width are that 50mm, length are that the U-steel of 2070mm～2970mm is welded into equilateral U-steel framework 4 (see figure 2)s, the spacing of being made by diameter 3mm steel wire of burn-oning at 7.5mm place, distance U-steel framework bottom surface is gauze wire cloth 5 (see figure 3)s of 150mm, is that the concrete of 0.1%～0.15% polypropylene fibre pours that to make thickness in the U-steel framework be that 15mm, the length of side are the equilateral lower plate 1 (Fig. 1) of 2070mm～2970mm into being mixed with volume fraction.Etc. the lower plate concrete curing two days later, spreading thickness is that 50mm, the length of side are the equilateral polyphenyl plate 3 (Fig. 1) of 2070mm～2970mm, the spacing of being made by diameter 3mm steel wire of burn-oning at distance U-steel framework end face 7.5mm place again is the gauze wire cloth of 150mm, the concrete that will be mixed with volume fraction at last and be 0.1%～0.15% polypropylene fibre is poured into and made thickness in the U-steel framework is that 15mm, the length of side are the equilateral upper plate 2 (Fig. 1) of 2070mm～2970mm, forms light-duty polypropylene fiber concrete composite plate.

Claims

1, light-duty polypropylene fiber concrete composite plate, comprise upper, middle and lower-ranking, described middle level is an insulation layer, it is characterized in that: described the upper and lower are the polypropylene fiber concrete plate, the periphery of described upper, middle and lower-ranking is coated with the U-steel framework, and described U-steel framework connects described upper, middle and lower-ranking one.

2, light-duty polypropylene fiber concrete composite plate as claimed in claim 1, it is characterized in that: described insulation layer is a polyphenyl plate.