CN2786241Y

CN2786241Y - Steel I-shaped beam

Info

Publication number: CN2786241Y
Application number: CN 200520015742
Authority: CN
Inventors: 陈传为
Original assignee: Individual
Current assignee: Wu Jiwu
Priority date: 2005-04-25
Filing date: 2005-04-25
Publication date: 2006-06-07
Anticipated expiration: 2015-04-25

Abstract

The utility model relates to an I-shaped steel beam, which comprises an upper beam, a lower beam and a standing beam, wherein the upper beam and the lower beam are formed from star-shaped formed steel and opened inward. The standing beam is an equidistant reciprocating bent waveshape beam, the cross section of the standing beam is in a trapezoidal wave or a triangular wave, the reciprocating bent distance of the standing beam is equal to the opening width of the upper beam and the lower beam, and the standing beam is vertically inserted in the openings of the upper beam and the lower beam and is integrally fixed with the upper beam and the lower beam. A steel choke plug is arranged at the end surface of each of both sides of the standing beam, the width of the steel choke plug is equal to that of the standing beam, and the steel choke plugs are integrally welded with the standing beam, the upper beam and the lower beam. The I-shaped steel beam of the utility model is composed of the standing beam with the wavelike cross section, and the upper beam and the lower beam which are made of the formed steel. The weight of the utility model can be greatly reduced, and the same or larger strength and rigidity can be achieved; the utility model has the advantages of light weight, low cost, small size and service life of 16 years to 20 years, so that the fixing of a template can be simplified, and the utility model is suitable for any support beams of building templates. Simultaneously, transportation expenses and warehouse expenses can be reduced, waste materials can not be generated in the process of construction, and the expenses of the clearing of the waste materials can be reduced.

Description

The steel i beam

Technical field

The utility model relates to the construction formwork supporting structure, particularly relates to a kind of steel i beam.

Background technology

In building construction and road and bridge construction, need use support shuttering during placing of concrete, support crossbeam and the secondary beam in the form bracing system that generally uses has wooden frame, girder steel, aluminum alloy beams or the like at present.Though above-mentioned various beam is also handy, ubiquity structure heaviness, the higher defective of cost.Wherein, though the wooden frame cost is lower, intensity is low, rigidity is poor, yielding, fragile; The advantage of aluminum alloy beams is in light weight, and rigidity is big, but the cost height; Though and general girder steel rigidity is big, too heavy, construction and installation are extremely inconvenient.

The utility model content

The purpose of this utility model is to overcome above-mentioned defective, and a kind of sturdy and durable, in light weight, good rigidly, intensity height, steel i beam that cost is low are provided.

The utility model steel i beam comprises upper and lower beam and Li Liang, and described upper and lower beam (1,4) is for cross section

The shaped steel of shape, opening inwardly, described upright beam is a cross section wave beams in wave shape, this upright beam vertically inserts the opening of described upper and lower beam and is fixed together with described upper and lower beam.

The utility model steel i beam, wherein said upright beam is the wave beams of equidistant reciprocal bending, back and forth the distance of bending equates with the A/F of described upper and lower beam, end face is equipped with the steel plug wide with it respectively in described Li Liang both sides, and steel plug and described upright beam and upper and lower beam weld together.

The utility model steel i beam, wherein said upright beam is the wave beams that cross section is trapezoidal wave or triangular wave.

The utility model steel i beam, wherein two described flangings adopt with the interconnected position of described upright beam and are weldingly fixed on.

The utility model steel i beam, be the variation of common i beam for forming by cross section upright beam in wave shape with by the upper and lower beam that the shape steel constitutes, weight is greatly alleviated, and reach equally or bigger strength and stiffness, reduce cost, reduced volume, reached 16-20 application life.Can make the fixedly summary of template, be applicable to the brace summer of all construction formworks.Simultaneously, can reduce transportation and warehousing costs, can't in construction, produce waste material, reduce the expense of clear away waste.

Description of drawings

Fig. 1 is the structural representation of the utility model steel i beam;

Fig. 2 is a plug schematic diagram in the utility model steel i beam;

Fig. 3 is the A-A sectional view of Fig. 1;

Fig. 4 is the sectional view of upper and lower beam in the utility model steel i beam;

Fig. 5 is the lateral view of the neutral beam of the utility model steel i beam;

Fig. 6 is the sectional view of the neutral beam of the utility model steel i beam.

The specific embodiment

For further setting forth the utility model steel i beam, do more detailed explanation below in conjunction with embodiment.

Referring to Fig. 1, in the embodiment of the utility model steel i beam, the steel i beam is made up of upper beam 1, underbeam 4 and wave beams therebetween 2.Referring to Fig. 4, put the beams in place 1 with underbeam 4 for shape identical, cross section is

The shaped steel of shape.

Referring to Fig. 3, upper beam 1 and underbeam 4 are staggered relatively, are welded with wave beams 2 therebetween, these wave beams 3 usefulness steel plates compactings (referring to Fig. 5 and Fig. 6).Upright beam is the wave beams of equidistant reciprocal bending, and cross section is the shape of trapezoidal wave or triangular wave, and its width should be identical with the opening of upper beam 1, underbeam 4, just in time vertically inserts and be welded in the opening.Referring to Fig. 2, in order to strengthen the intensity of two terminations, increased the plug 3 that steel plate is made two terminations, referring to Fig. 3, the width of this plug is identical with the width of wave beams 2.Steel plug 3 welds together with upright beam 2 and upper and

lower beam

1,4

In the embodiment of the utility model steel i beam, upper beam 1 and underbeam 4 and upright beam 2 used steel plates are between 1.5-2mm, and the width of shaped steel is 80mm, and thickness is 30mm; The height of upright beam 2 is 103.6mm, and the thickness of upright beam is 45-50mm, and the ripple deck-siding is 50mm; Need the place arc angle of falling the roundlet of chamfering to handle.Above-mentioned size only is the size of present embodiment, not as limiting unique size of the present utility model.

The utility model steel i beam is formed by cross section upright beam in wave shape with by the upper and lower beam that the shape steel constitutes, and weight is greatly alleviated, and reaches equally or bigger strength and stiffness, alleviated weight, reduce cost, reduced volume, reached 16-20 application life.Can make the fixedly summary of template, can be used for the brace summer of various construction formworks.Simultaneously, can reduce transportation and warehousing costs, can't in construction, produce waste material, reduce the expense of clear away waste.

Claims

1, a kind of steel i beam, comprise upper and lower beam (1,4) He Liliang (2), it is characterized in that: described upper and lower beam (1,4) is the shaped steel of "  " shape for cross section, opening inwardly, described upright beam (2) is a cross section wave beams in wave shape, and this upright beam (2) vertically inserts the opening of described upper and lower beam (1,4) and is fixed together with described upper and lower beam (1,4).

2, according to the steel i beam of claim 1, it is characterized in that: described upright beam (2) is the wave beams of equidistant reciprocal bending, back and forth the distance of bending equates with the A/F of described upper and lower beam (1,4), end face is equipped with the steel plug (3) wide with it respectively in described upright beam (2) both sides, and steel plug (3) welds together with described upright beam (2) and upper and lower beam (1,4).

3, according to the steel i beam of claim 1 or 2, it is characterized in that: described upright beam (2) is the wave beams of trapezoidal wave or triangular wave for cross section.

4, according to the steel i beam of claim 3, it is characterized in that: two described flangings (12) adopt with the interconnected position of described upright beam (2) and are weldingly fixed on.