CN2649670Y

CN2649670Y - Two-way forced prestressed hollow plate

Info

Publication number: CN2649670Y
Application number: CN 03209311
Authority: CN
Inventors: 杨金绪; 张立静; 张效思; 吴淑华; 张辉
Original assignee: 张效思
Priority date: 2003-09-05
Filing date: 2003-09-05
Publication date: 2004-10-20

Abstract

The utility model discloses a bi-directional force bearing pre-stress hollow plate, which belongs to technical field of civil construction. The object of the utility model is to provide a prefabricated plate that tension pre-stress production in factory is firstly made, tension pre-stress assembly or only horizontal rod connection is made on site, integral pre-stress assembly type building top or bi-directional force bearing efficient pre-stress integral type building cover is produced so as to meet the requirements of high speed, high quality, large span, large force bearing and good anti-seismic performance of construction projects in our country and to quicken the step of industrialization, standardization and modernization of construction.

Description

Bidirectional stress gives the stress hollowcore slab

Technical field

The art of this patent is that bidirectional stress gives the stress hollowcore slab, makes monolithic load-bearing floor slab structure, belongs to the building building technology field, can be widely used in industry and civilian construction and civil air defense constructions and installations.

Background technology

1. the stress garden of the giving orifice plate of China, because the end only depends on the beard muscle to connect, single load bearing, anchoring property is poor, and during earthquake, the house often caves in because of the garden orifice plate drops, and door has been closed in many members factory after the earthquake of Tangshan, and the building in the city dare not have been used the garden orifice plate.

2. the SP of the U.S. gives the stress hollowcore slab, also is single load bearing, owing to be sawing length, end light light, the beard muscle does not have yet, and only is furnished with the stress rib of giving in the plate, the end of plate is prone to the extruding crackle and along giving longitudinal splitting crackle, the plate side arrisdefect of stress steel strand, antiarch is bigger, and the thickness of rib of slab is little, and the maximum particle diameter of stone can only be used 10mm, most sandstone place of production of China, be difficult to reach the grating requirement, equipment is again import, and cost is higher.

3. Yugoslavic IMS system is that integral body is given stress assembling sheet-pile building, and anti-seismic performance is fine, adopts the plate of bidirectional stress, and plate is an ordinary reinforced concrete, and four jiaos have bayonet socket, rectangle, and production and transport are heavy, and about 250,000 m have carried out in China before and after the eighties ², just left alone without help afterwards descended.

Summary of the invention

The objective of the invention is to overcome the technical deficiency part of existing three kinds of plates, provide a kind of anti-seismic performance good, can form reliably and efficiently give stress assembled integral superstructure and the whole bidirectional stress that gives the stress precast assemble floor gives the stress hollowcore slab, can be used in building and highrise building in the city, with industrialization of construction industry and the modernization of quickening China.

The utility model is achieved by following technical proposals: bidirectional stress gives the stress hollowcore slab, wide 900～2100mm, long 4200～21000mm thickness of slab, 120～390mm, the upper and lower plates face is arranged, vertical rib, cross rib, the end cross rib, the end anchorage ring is laterally worn the muscle hole, gives the stress steel strand, hot rolling HRB400 (III level) welded steel fabric sheet, spiral coil, " oval pore " constitutes, and the plate body concrete class is C40～C60.Bidirectional stress gives the stress hollowcore slab, be to open by the elder generation of factory's long-line pedestal method production to give the stress one-way slabs, being transported to the building site installs, by penetrating horizontal bar and laying reinforced mesh, that makes bidirectional stress efficiently gives stress assembled integral superstructure, laterally give the stress rib stress rib by penetrating, give the stress assembly unit and make integral body and give the stress precast assemble floor with posttension.The utility model, still have plant produced annex---fill out the core pipe, the profile of filling out the core pipe is identical with the shape in hole, be in the shell of sealing dry perlite to be housed, play heat-insulating sound-insulating, also can directly be placed in the cast-in-place concrete in the building site.

The utility model, bidirectional stress give the stress hollowcore slab, compared with prior art have the following advantages:

One, comparing the advantage that has with the stress garden of the giving orifice plate of China is:

1. adopted and efficiently given stress technique, improved pass, light weight, high-strength, span garden orifice plate can only be accomplished 6.9m, is difficult to satisfy the requirement of Modern Residence and public building, the utility model can be accomplished 21m, and can bear heavier load 10KN/m ²～19KN/m ²

2. be connected reliably with braced structures, cross rib is arranged, pass force crossly is clear and definite, bidirectional stress, and anti-seismic performance is good.

Two, giving the stress hollowcore slab with the SP of the U.S. compares the advantage that has and is:

1. the thickness of plate meets the construction module of China.

3. the quantity in pass, hole, rib are thick, are more suitable for China's national situation, can use bigger cobble-stone diameter 5～20mm, use a kind of concrete mix.The cobble-stone diameter that the SP plate is used is 5～10mm, three kinds of match ratios.

4. the plate end is solid, and is furnished with horizontal bar and spiral coil, has solved normal end crackle and the shearing resistance problem that occurs of SP plate.

5.SP the equipment of plate is import, investment is big, the cost height.

Three, comparing the advantage that has with Yugoslavic IMS system with plate is:

1. applied range, the IMS system is the slab column system building system, do not declare do high-rise.The art of this patent can be widely used in the light energy-saving residence structural system of special-shape column frame, Short Pier Shear Wall Structures, framework infilled wall structural system, multilayer and highrise buildings such as frame-shear wall structural system.

2.IMS the making sheet of giving of system is ordinary reinforced concrete, rectangle and four jiaos have bayonet socket, steel model production.This patent is to open earlier long-line pedestal method, and that adopts slipform process production efficiently gives stress plate, and weight is lighter, and cost is lower, transports more convenient.

3. during jigsaw, the joint of plate and plate can be taked to be staggered.

4. span is big, and maximum colum network size 11.7m * 11.7m accomplishes in IMS system China, and the utility model can be accomplished the 21m span.

Description of drawings

Fig. 1 is a stereogram of the present utility model

Fig. 2 is an A-A sectional drawing of the present utility model

Fig. 3 is a vertical view of the present utility model

Fig. 4 is a B-B sectional drawing of the present utility model

Fig. 5 is a C-C sectional drawing of the present utility model

Fig. 6 is core pipe (annex) figure that fills out of the present utility model

The specific embodiment

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

In the drawings, the surface of upper face 1 should be coarse, so that engage firmly with overlapping layers or leveling layer, and should when construction, brush interfacial agents in the scene.Lower face 2 is smooth planes, so that make indoor canopy.Vertical rib 3 connects the upper and lower plates face and bears shearing.The anchoring ring 6 of plate end forms plates and supports to tie with post, with wall, with beam and connect reliably connecting of structure.Middle cross rib 4 and end be horizontal to be helped plain bars net sheet 12 and hole 7 in 5,7a, 7b, be to make bidirectional stress and whole key of giving stress, be that Kong Zhongke puts into plain bars or gives the stress reinforcing bar, horizontal bar 9 plates and plate also couple together in the plate, form in length and breadth to the network reinforcing bar of handing over, vertically with the stress of giving has laterally all been arranged, on-the-spot not adding, give being called of stress and efficiently give stress assembled integral superstructure, the scene applies the integral body that is called of giving stress and gives the stress precast assemble floor.The annex 11 that designs in the utility model technology is that to run into engineering plane complicated, when being difficult to install bidirectional stress and giving the stress hollowcore slab, or the owner has engineering and specify when requiring, and uses in the concrete and take directly to be placed at the scene.

Claims

1. a bidirectional stress gives the stress hollowcore slab, it is characterized in that, plate body contains upper face 1 lower face 2, build as a whole with vertical rib 3, cross rib 4, end cross rib 5, be furnished with the stress rib of giving 8, plain bars 6,9,12, spiral coil 13 in the body, vertically " oval pore " 10 arranged, laterally hole, garden 7,7a, 7b in the plate body.Plate is by plant produced, is transported to after the building site installs, and the plain bars 9,12 of plate and plate is coupled together, laterally the hole, garden penetrates plain bars, and make bidirectional stress efficiently give stress assembled integral superstructure, laterally penetrate in the hole, garden and give stress rib, give the stress precast assemble floor and make integral body.

2. according to the claim 1 described two-way stress hollowcore slab that gives, it is held to levy and is, described plate body is strong concrete C40～C60, and giving the stress arrangement of reinforcement is high-strength helix rib steel wire or steel strand, and plain bars is that the material of HRB400 (III) grade reinforcing steel is made.

3. according to the claim 1 described two-way stress hollowcore slab that gives, it is held to levy and is, the described vertically pass curve of " oval pore " 10 is observed equation X ²/ a ²+ Y ²/ b ²=1 (a＞0, b＞0) is the pass feature of the art of this patent.

4. according to the claim 1 described two-way stress hollowcore slab that gives, it holds to levy, there is end cross rib 5 end of plate, hole, garden 7a, 7b and reinforced mesh 12 are arranged in the rib, there is phase middle cross rib 4 across a certain distance at the middle part of plate, hole, garden 7 and reinforced mesh 12 are arranged in the rib, for the art of this patent make bidirectional stress or whole give stress feature.

5. according to the claim 1 described two-way stress hollowcore slab that gives, it is held to levy and is, the anchoring ring 6 that the useful plain bars in the end of plate is made couples together reliably with braced structures.