CN2036552U

CN2036552U - Simple floor element

Info

Publication number: CN2036552U
Application number: CN 88214074
Authority: CN
Inventors: 权金生
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-09-23
Filing date: 1988-09-23
Publication date: 1989-04-26

Abstract

The utility model discloses a building element, in particular to a simple floor element. The utility model is characterized in that the cross section of the element is a thin hollow and equilateral triangle strip shaped structure; the utility model is made by dry hardened cement mortar with high label; each corner top of the triangle is provided with low carbon cold drawn steel wires; the pre-stress is exerted by two wires which are arranged at the bottom of the element; when used, the elements are positively and negatively positioned, and overlapped and assembled together by the two elements; the utility model can bear floor loading. The elements are tightly engaged together. The utility model has the advantages of good flexural strength, light weight, easy lifting, material saving, easy manufacture, and low cost.

Description

Simple floor element

The utility model relates to a kind of building unit, particularly the economy building board member.

The precast floor slab of present architectural use, though generally be cassette ceiling, because of floor area is bigger, weight is still heavier.As the cassette ceiling with the current general wide 48Cm of long 330Cm is example, every weight just reaches 400Kg, and this is out of question though install for well-equipped unit in charge of construction, but, lift this floor and just feel very difficult for the not high building unit of mechanization degree.

The purpose of this utility model is that a kind of improved precast floor slab will be provided, and it not only can satisfy the design load requirement, reduces cost, and can effectively alleviate floor weight, need not can install by large-scale lifting appliance.

The purpose of this utility model is achieved in that economy building board member main body is a strip structure, and its cross section is the equilateral triangle of thin-walled hollow, adopts high grade dry cement mortar to manufacture.At leg-of-mutton each top, angle, be furnished with the low-carbon (LC) cold drawn wire of φ 4-φ 6, wherein be positioned at two of triangular base, prestressing.With this member, positive and negative bit interleave, two superimposed fits together, and with slit between mortar filling member, promptly constitutes the floor of integral body, presses the design code construction then, no matter makes the top cover of building or makes the interior floor of building, all can meet the demands.

The concrete structure of utility model is drawn by following examples and accompanying drawing thereof.

Fig. 1 is an economy building board member schematic cross-section.

Fig. 2 is an internal mold scheme of installation when manufacturing the economy building board member.

Fig. 3 is the schematic diagram after the floor member assembling.

Describe the concrete member details that the utility model proposes in detail and make process below in conjunction with Fig. 1,2.

This economy building board member main body 1 is-4m strip structure, its cross section is the equilateral triangle of thin-walled hollow, triangle length of side 150mm, wall thickness 10mm is manufactured by the high grade dry cement mortar that 1:2.5 match ratio mix becomes with medium sand by No. 325 ordinary Portland cements.At leg-of-mutton each top, angle, be furnished with φ 4 low-carbon (LC) cold drawn wires 2, wherein be positioned at two of triangular base, prestressing is concentrated for avoiding stress, in the corner of triangle inwall, all makes the angle, garden.Its manufacture process is as follows:

1, prepares bed die.

2, position in accordance with regulations, two 4 end of φ carbon cold drawn wires of configuration triangular base.

3, stretching wire is pressed steel wire ultimate strength 6500Kg/Cm ²70%, other adds 5% amount of contraction, stretching wire, every stretching force is 6500Kg * 70% * 1.05 * 0.125=600Kg

4, between compressor wire, lay the thick bottom dry of 10mm cement mortar, and use the spatula compacting.

5, core and dispose top wire is installed: core is made up of plate in the core 3 and core side plate 4, and plate 3 is supported by two pairs of stow-woods 5 that are positioned at its two ends in the core.

6, smear and press the sidewall mortar: smear along side form from bottom to top with plasterer's trowel and press dry rigid high-grade cement mortar, thick 10mm and push closely knit, so because mortar is that dry can not glide.

7, remove internal mold: after the compacting of sidewall mortar, promptly removed internal mold in 2-4 hour at normal temperatures.During form removal, earlier stow-wood 5 is extracted simultaneously from two ends, plate 3 falls naturally in the core, and side plate 4 is toppled over to the centre immediately, thereby dismantles internal mold.

8, when mortar strength reach 28 days normal intensities 70% the time, cut off compressor wire.

9, component conservation makes the phase, the application of can dispatching from the factory to regulation.

With reference to Fig. 3, during the assembling floor, for increasing the component ends shear strength, identical with general hollow floor job practice, tamp with mortar the member two ends are hollow, then with the positive and negative bit interleave of member, two superimposed fits together, and a base angle of upper strata member is inserted in the groove of bottom between two normotopia placement members of lower floor, thus make the floor lower edge all be configured to compressor wire, use and strengthen its flexural strength, then with slit between 1:6 mortar filling member, purpose is to make member to connect airtight mutually, so that pass on stress, promptly constitutes the floor of integral body; For the half leg-of-mutton breach in both sides, cross section, in the time of then can constructing, fill and lead up with mortar or concrete on the top layer.

The utlity model has following advantage:

1, manufacture easily, takes up an area littlely, steel wire stretching intensity is low, is convenient to do things simply and thriftily, and gets on the job with indigenous methods.

2, bending strength is good: because of the mutual interlock jam-packed of member, be conducive to lateral transport stress, make whole floor become as a whole jointly stressed, the Simple floor element through three are made, fit together, carry out loading test by designing requirement, no matter as building top cover or inner floor, all can meet the demands, in addition, as strengthen member height, and increase steel wire diameter, also can bear bigger load.

3, in light weight, lifting has easily solved the difficulty that floor is installed by unit in charge of construction of middle townlet, and novel floor reduces 50% approximately than common floor weight, and both contrast as following table:

Common cassette ceiling the utility model floor member

Area 0.48m * 3.30m=1.58m ²Every 0.15m * 4.0m is staggered up and down

Totally 6, area calculates by half

0.15m×4.0m×3＝1.8m ²

6 of every 40Kg of weight 400Kg amount to

40Kg×6＝240Kg

Every square meter weight 400Kg ÷ 1.58m ²240Kg ÷ 1.8m ²=134Kg/m ²

＝253Kg／m ²

Weight per unit area is than 1 0.53

4, cost is low, and price is cheap, because economy building board member boring, volume are big, materials are few, adopts the core of uses now, and form removal is easy, so recruitment is few, price is cheap, during installation, also can remove from because of leasing mechanical required machine-team expense.In addition,, not only can improve workmanship, also can further save manually, reduce cost if component sidewall when construction used flatiron formula vibrator.

Claims

1, a kind of building unit, particularly economy building board member are made of reinforcing bar, hydraulicity cementitious matter and aggregate, it is characterized in that member body is a strip structure, its cross section is the thin-walled hollow equilateral triangle, is manufactured by cement mortar, at leg-of-mutton each top, is furnished with reinforcing bar.

2, economy building board member according to claim 1 is characterized in that reinforcing bar is the low-carbon (LC) cold drawn wire, wherein is positioned at two prestressings at triangle base angle.

3, economy building board member according to claim 1 is characterized in that cement mortar is a high grade dry cement mortar.