A kind of new type of light gauge steel
Technical field
The present invention relates to the keel that use in a kind of building field, relate in particular to a kind of changeable new type of light gauge steel of width of keel.
Background technology
At current building field, building types and style vary, there are several main form of structure such as brick mix structure, wooden construction, reinforced concrete structure and steel work: for brick mix structure, no matter be that bearing wall or non-bearing wall body great majority are brick wall structure, after puzzling with fragment of brick Deng brick wall, need to utilize concrete to smear metope in body of wall both sides, this traditional wall body structure and construction method have some shortcomings: the Efficiency Decreasing that first causes construction due to the construction sequence complexity of construction wall; Secondly build material used various, as cement, sand, stone, timber, metal, plastics etc., cost is high; The soundproof effect of the body of wall of building is poor again, and effect of heat insulation is general.For wooden construction, along with the continuous increase of national environmental protection consciousness, timber is proposed restriction, used in limited time.The primary structure form of present stage China's housing construction is take reinforced concrete frame as main, but this structure exists, construction is loaded down with trivial details, construction rubbish is many and dead load is large, depth and space are relatively little, beam, post are thick, the shortcomings such as space availability ratio is lower, this cannot meet the functional requirement of housing construction to a certain extent.
Lightgage steel joist is a kind of novel constructional materials of development in recent years, have lightweight, intensity, adapt to waterproof, shockproof, dustproof, fire prevention, sound insulation, sound-absorbing, the effects such as constant temperature, also there is the duration short simultaneously, the advantages such as easy construction, adopt the zinc-plated or zinc-plated lightgage steel joist of aluminizing to be more and more applied in the building construction of ground floor layer, at the partition wall of building field, in ceiling system, a large amount of lightgage steel joists that use are as floor decoration, ornament materials, be widely used in family, office premises, hotel, airport, station, museum, market, arenas, restaurant, the places such as building site, wherein lightgage steel joist is to adopt steel plate through repeatedly roll forming of roll, but the width of the keel of producing can not change, needing width is that the keel of L can only be produced the lightgage steel joist that width is L.
Summary of the invention
For overcoming the defect of above-mentioned prior art, the object of the present invention is to provide and a kind ofly can save material, the lightgage steel joist that can stretch and change again, can also improve the strength and stiffness of lightgage steel joist simultaneously.
For achieving the above object, the present invention adopts the technical scheme of new type of light gauge steel to be: a kind of new type of light gauge steel, comprise bottom panel and the side panel that is positioned at bottom panel width both sides, it is characterized in that: described lightgage steel joist can stretch and shrink along keel siding direction, on described bottom panel, cut line of cut, described line of cut stretches and forms expanded bore along keel siding direction.
As the improvement of technique scheme, described line of cut comprises the first line of cut, connects and along the second line of cut of described the first line of cut symmetry and three line of cut parallel with described the second line of cut with described the first line of cut two ends.
Further, described the first line of cut direction is parallel with keel length direction.
Further, described the second line of cut direction is between keel length direction and keel siding direction.
Further, the length of described the 3rd line of cut is identical with the length of described the second line of cut.
As the improvement of such scheme, the figure that described the first line of cut, the second line of cut and the 3rd line of cut form distributes with Central Symmetry alternative arrangement along keel length direction.
As optimization, the region on described bottom panel except line of cut is also suppressed with embossing.
Further, described embossing be shaped as point, line, circle or arbitrary polygon and any combination of various shapes.
As optimization, on the panel of described both sides, be provided with reinforcement indent along keel length direction.
Further, the cross section of described reinforcement indent is V-arrangement, circular arc or rectangle.
Implement the embodiment of the present invention, there is following beneficial effect: new type of light gauge steel of the present invention, can stretch and shrink along keel siding direction, widen the application size range of keel siding direction, greatly save material; The present invention adopts the method for die cut pattern, drawing/rolling to form lightgage steel joist, reduced in lightgage steel joist manufacturing process abnormal, improved yield rate and production efficiency; Owing to having suppressed embossing and be provided with reinforcing rib on the bottom panel of keel on side panel, make its strength and stiffness obtain enhancing, guarantee the mechanical property of lightgage steel joist.
Accompanying drawing explanation
The structural representation of bottom panel embodiment 1 when Fig. 1 is not stretching of a kind of new type of light gauge steel of the present invention.
The structural representation of bottom panel embodiment 2 when Fig. 2 is not stretching of a kind of new type of light gauge steel of the present invention.
The structural representation of bottom panel embodiment 3 when Fig. 3 is not stretching of a kind of new type of light gauge steel of the present invention.
The structural representation of bottom panel embodiment 4 when Fig. 4 is not stretching of a kind of new type of light gauge steel of the present invention.
Fig. 5 is the structural representation of bottom panel after a kind of new type of light gauge steel embodiment of the present invention stretches.
Fig. 6 is the structural representation in a kind of new type of light gauge steel embodiment of the present invention drawing process.
Fig. 7 is the structural representation of a kind of new type of light gauge steel bottom panel of the present invention embossing embodiment 1.
Fig. 8 is the structural representation of a kind of new type of light gauge steel bottom panel of the present invention embossing embodiment 2.
Fig. 9 is the structural representation of a kind of new type of light gauge steel bottom panel of the present invention embossing embodiment 3.
Figure 10 is the structural representation of a kind of new type of light gauge steel bottom panel of the present invention embossing embodiment 4.
Figure 11 is the cross sectional representation of a kind of new type of light gauge steel side panel of the present invention indent embodiment 1.
Figure 12 is the cross sectional representation of a kind of new type of light gauge steel side panel of the present invention indent embodiment 2.
Figure 13 is the cross sectional representation of a kind of new type of light gauge steel side panel of the present invention indent embodiment 3.
The specific embodiment
As shown in Fig. 1-6, the embodiment of new type of light gauge steel of the present invention, the lightgage steel joist that the steel sheet of one even thickness is formed through length direction bending, the side panel 1 that it comprises bottom panel 2 and is positioned at bottom panel 2 width both sides, this lightgage steel joist can stretch and shrink along keel siding direction, on bottom panel 2, cut line of cut, described line of cut stretches and forms expanded bore 4 along keel siding direction.
As Figure 1-5, line of cut on bottom panel 2 comprises the first line of cut 31, the second line of cut 32 and the 3rd line of cut 33, wherein, the first line of cut 31 is a straight line, and first direction of line of cut 31 and the length direction of keel are parallel, be beneficial to stretching and the contraction of keel at width, the length of the first line of cut 31 does not limit, and specifically determines according to the needs of keel length used; The second line of cut 32 is connected with the first line of cut 31 two ends and along described the first line of cut 31 symmetries, the direction of the second line of cut 32 is between keel length direction and keel siding direction, the angle of second direction of line of cut 32 and the length direction of keel is 0-90 °, wherein, the angle of second direction of line of cut 32 and the length direction of keel can be 90 °, as shown in Figure 4; The 3rd line of cut 33 is parallel with the second line of cut 32, and the length of the 3rd line of cut 33 is identical with the length of the second line of cut 32, guarantee keel can stretch smoothly and shrink along keel siding direction like this, in the time that the length of the 3rd line of cut 33 is not identical with the length of the second line of cut 32, can affect along the tensile elongation of keel siding direction maximum, the variable size range of broad ways of lightgage steel joist is diminished.The first line of cut 31, the figure that the second line of cut 32 and the 3rd line of cut 33 form along keel length direction with Central Symmetry alternative arrangement, and symmetrical centre is on the mid point of the 3rd line of cut 33, adjacent figure shares same the 3rd line of cut 33, on the length direction of keel bottom panel, form like this figure being formed by line of cut being arranged alternately with each other, stretch and form the expanded bore 4 being arranged alternately with each other along keel siding direction, expanded bore 4 becomes large and diminishes along with the stretching of keel siding direction and contraction, the expanded bore 4 forming is larger, what the width of keel became is longer, vice versa.
For the second line of cut 32 of same length, change the angle of second direction of line of cut 32 and the length direction of keel: as shown in Figure 1, the structural representation of bottom panel embodiment 1 during for not the stretching of new type of light gauge steel, the angle of second direction of line of cut 32 and the length direction of keel is 30 °, as shown in Figure 2, the structural representation of bottom panel embodiment 2 during for not the stretching of new type of light gauge steel, the angle of second direction of line of cut 32 and the length direction of keel is 45 °, as shown in Figure 3, the structural representation of bottom panel embodiment 3 during for not the stretching of new type of light gauge steel, the angle of second direction of line of cut 32 and the length direction of keel is 60 °, as shown in Figure 4, the structural representation of bottom panel embodiment 4 during for not the stretching of new type of light gauge steel, the angle of second direction of line of cut 32 and the length direction of keel is 90 °, when the angle of second direction of line of cut 32 and the length direction of keel is respectively 30 °, 45 °, 60 °, 90 ° time, be stretched to ultimate range along keel siding direction, be respectively 2.6mm along the increasable maximum size of keel siding direction, 15mm, 24.6mm, 32.6mm, therefore, in the second line of cut 32 length constant in the situation that, the angle of second direction of line of cut 32 and the length direction of keel is larger, larger along the maximum tension distance of keel siding direction, the changeable scope of width that is keel is larger.As shown in Figure 5, in the time that the angle of second direction of line of cut 32 and the length direction of keel is 45 °, schematic diagram when keel bottom panel 2 is stretched to maximum size along keel siding direction, it is maximum that the expanded bore 4 forming also reaches, expanded bore 4 comprise the first line of cut 31 be connected with its two ends the second line of cut 32 separation time the hole that forms, and the 3rd hole of forming while separating of line of cut 33, Fig. 6 is that new type of light gauge steel is at the structural representation along in keel siding direction drawing process.
The technical problem that the present invention further will solve is the Rigidity and strength that keeps lightgage steel joist, in order to increase the mechanical property of keel bottom panel 2, region except line of cut 3 on bottom panel 2 is also suppressed with embossing 5, as shown in Figure 7, for the structural representation of new type of light gauge steel bottom panel embossing embodiment 1, on bottom panel 2, be suppressed with rectangle decorative pattern; As shown in Figure 8, be the structural representation of new type of light gauge steel bottom panel embossing embodiment 2, on bottom panel, suppress a little or circular decorative pattern; As shown in Figure 9, for the structural representation of new type of light gauge steel bottom panel embossing embodiment 3, on bottom panel, be suppressed with polygonal decorative pattern; As shown in figure 10, for the structural representation of new type of light gauge steel bottom panel embossing embodiment 4, on bottom panel, be suppressed with the decorative pattern of various figure combinations, these decorative patterns are all made by die cut pattern, drawing rolling method, this method can reduce abnormal in lightgage steel joist manufacture craft, improve production efficiency, guaranteed the intensity of lightgage steel joist.
From improving the angle of rigidity of lightgage steel joist, on the both sides of keel panel 1, be provided with indent 6 along keel length direction, and indent 6 is to the inner bulge of keel side panel, so that at the installing space of installing when keel outside occupying volume not, indent 6 plays reinforcing rib, can strengthen the bend resistance intensity of lightgage steel joist, as shown in figure 11, for the cross sectional representation of new type of light gauge steel side panel indent embodiment 1, the cross section of indent 6 is V-arrangement; As shown in figure 12, be the cross sectional representation of new type of light gauge steel side panel indent embodiment 2, the cross section of indent 6 is circular arc; As shown in figure 13, be the cross sectional representation of new type of light gauge steel side panel indent embodiment 3, the cross section of indent 6 is rectangle, certainly, the shape of cross section of indent 6 is not limited to this, also can be other shape, as long as can strengthen the flexing resistance of lightgage steel joist.
In the present invention, lightgage steel joist is through die cut pattern, the method of drawing/rolling forms, adopt new type of light gauge steel of the present invention, in the situation that not affecting lightgage steel joist thickness, stretch along keel siding direction, expanded bore has necessarily and interweaves each other, overlap joint effect, the width dimensions of capable of regulating keel, save material, also reduce abnormal in lightgage steel joist manufacturing process, improve production efficiency, simultaneously, the reinforcement indent being provided with on the decorative pattern of suppressing at new type of light gauge steel bottom panel and side panel, guarantee the superior mechanical property of lightgage steel joist, increase the Rigidity and strength of keel.
Above disclosed is only preferred embodiment of the present invention, the interest field that certainly can not limit the present invention with this, and the equivalent variations of therefore doing according to the claims in the present invention, still belongs to the scope that the present invention is contained.