CN2386106Y

CN2386106Y - Large precase slab

Info

Publication number: CN2386106Y
Application number: CN 99225208
Authority: CN
Inventors: 王安明
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-09-29
Filing date: 1999-09-29
Publication date: 2000-07-05
Anticipated expiration: 2009-09-29

Abstract

The utility model relates to a large prefabricated plate, particularly a large roof plate for house architecture. The utility model is suitable for engineering roof structures with large span structures. The utility model is prefabricated by steel bars and concrete. The utility model is provided with a double T-shaped rib. The interior of the rib is provided with a spiral stress steel bar which is twisted by a plurality of steel wires. The both ends and the middle part of the utility model are trapezoid beams. The utility model has the advantages of large span, high bearing capability, simple construction and good shock resistance. The utility model is especially suitable for engineering roof structures with large span structures.

Description

A kind of large scale prefabricated plate

The utility model relates to a kind of large scale prefabricated plate for building, particularly the large roof slab of building construction use.Be applicable to longspan structure engineering roof structure.

At present, the roof panel that house architectural structure uses mostly is steel roof truss greatly.The long roof panel of 6M is installed on the thin webbed girder, this structure structure floor height, long construction period, design is complicated, cost is high, poor seismic behavior.And use not only cost height of steel work, and do not reach fire prevention, requirement for anticorrosion.Along with high load, the needs of longspan structure engineering development have not satisfied the requirement of engineering construction structure for general prefabricated units.

The purpose of this utility model provides a kind of large span, and bearing capacity height, shock resistance are good, but a kind of large scale prefabricated plate of simplified structure design again, easy construction.

The purpose of this utility model can realize by following technical scheme: the large scale prefabricated plate of building, it comprises by reinforcing bar, concrete prefabricated forming, it is characterized in that having on the precast plate double T shape rib, be provided with the helical form steel bar stress that many plying steel wires twist in the T shape rib, the two ends and the centre of precast plate have ladder beam, can improve this structural integrity and structural, precast plate can be flat board or the low two domatics of middle Senior Two end Steel bar stress can be straight line arrangement of reinforcement or curve arrangement of reinforcement.

The utility model compared with prior art, simplify design of building structures, made things convenient for construction, reduction of erection time, reduced construction costs, save steel, reduced unnecessary beam, post, raising anti-seismic performance in the building, can directly stride in a step for the building of span in 24M, because the reinforcement component that the utility model adopts, structural performance belongs to large deflection, bending resistance, the shear resistance height, ductility is good, anti-seismic performance is superior.

Fig. 1 is the utility model vertical view.

Fig. 2 is the B B sectional view of Fig. 1.

Fig. 3 is the ladder beam schematic diagram of Fig. 2 end.

Fig. 4 is the utility model mid portion ladder beam schematic diagram.

Fig. 5 is the A A sectional view of Fig. 1.

Fig. 6 is the utility model straight line arrangement of reinforcement and curve arrangement of reinforcement schematic diagram.

Fig. 7 is that many steel wire plying of the utility model twist into the helical form steel bar stress.

1--plate face, 2--double T shape rib, 3--steel bar stress, 4--cross rib, 5--end ladder beam, 6--middle part ladder beam.

Specifically describe embodiment of the present utility model below in conjunction with accompanying drawing.

Dotted portion is vertical two double T shape ribs 2 as shown in Figure 1, is provided with many plying in the T shape rib and twists into spiral helicine steel bar stress, and every reinforcing bar is 4～5 millimeters of Φ, can increase concrete bond stress like this, and good-extensibility improves component quality and performance; Laterally dotted line is three riblets.Fig. 2 is the vertical section B B of precast plate, the middle part height, and two ends are low, have the horizontal trapezoid riblet, as shown in Figure 3, make it to fuse in Fig. 1 structure, increase the globality of precast plate, and Fig. 6 is the form of reinforcement of steel bar stress.The gradient for two domatics is 2%, and present embodiment precast plate length can reach the wide 2.4M of being of long 12M～24M, adopts 525# cement to be mixed with special concrete.During making, adopt topotype and punching block combinations produce, be cut into certain-length with reinforcing bar, be placed on the interior stretch-draw of mould to certain stress, with concrete pouring coagulation forming in the mould, the utility model is specially adapted to the factory building of large span, warehouse, swimming hall, sports palace, boiler room, market etc. can make roofing, flooring smooth attractive in appearance.

Claims

1, a kind of large scale prefabricated plate comprises by reinforcing bar and concrete prefabricated forming, and it is characterized in that having double T shape rib 2 on the pre-plate, has the helical form steel bar stress 3 that many steel wire plying twist in the rib, and the two ends of precast plate and middle part are ladder beam.

2, precast plate according to claim 1 is characterized in that two domatics that precast plate is high in the middle of can be, two ends are low

3, precast plate according to claim 1 is characterized in that steel bar stress 3 can be straight line arrangement of reinforcement or curve arrangement of reinforcement.