CN203603333U - Steel bar truss and steel bar truss building bearing plate and steel bar truss composite slab thereof - Google Patents
Steel bar truss and steel bar truss building bearing plate and steel bar truss composite slab thereof Download PDFInfo
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- CN203603333U CN203603333U CN201320750106.4U CN201320750106U CN203603333U CN 203603333 U CN203603333 U CN 203603333U CN 201320750106 U CN201320750106 U CN 201320750106U CN 203603333 U CN203603333 U CN 203603333U
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- steel bar
- web member
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Abstract
The utility model discloses a steel bar truss and a steel bar truss building bearing plate and a steel bar truss composite slab thereof. The steel bar truss is formed by upper chords (1), lower chords (2) and a set of web members (3a), each web member (3a) is a z-shaped bent rod, the two ends of the web member (3) are welded to the two upper chords (1) respectively, and the two ends of the bottom edge of the web member (3) are welded to the two lower chords (2) respectively, and the z shapes of the two web members (3) are vertically inverted. A set of same long trapezoid grooves (4a) parallel to each other are evenly distributed on a formwork (4), and the steel bar trusses are arranged in the long trapezoid grooves (4a) and are welded to the formwork (4) to form the steel bar truss building bearing plate. Concrete (5) is poured to the steel bar truss building bearing plate, and the top face of the concrete (5) is lower than the tops of the trusses, so that the steel bar truss composite slab is formed. Due to the fact that the non-continuous web members are adopted in the steel bar truss, steel is saved, cost is reduced, and meanwhile convenience is brought to manufacture of the truss.
Description
Technical field: the utility model relates to the steel bar girder of building field and steel bar truss floor support plate, steel bar girder superimposed sheet.
Background technology: steel bar girder superimposed sheet and steel bar truss floor support plate are widely used in building field, wherein steel bar truss floor support plate is welded by template and steel bar girder two parts of bottom, builds concrete and just become steel bar girder superimposed sheet on steel bar truss floor support plate.Steel bar girder is by upper chord, lower chord, and the three kinds of reinforcing bars of web member that connect top-bottom chord are welded.Wherein web member is the reinforcing bar of corrugated continuous extension, and therefore consumptive material is more, because continuously web member length is large, not only needs main equipment again, and when welding, requires top-bottom chord location accurate, and waveform web member precision is high, makes and makes troubles to truss welding.
Utility model content: the purpose of this utility model is to improve the deficiency of existing steel bar girder, a kind of steel bar girder being made up of discontinuous reinforcing bar web member is provided, and steel bar truss floor support plate and steel bar girder superimposed sheet, with saving steel, weight reduction, reduce costs, simultaneously also for welding production steel bar girder brings convenience.
For this reason, the technical solution the utility model proposes is, a kind of steel bar girder, comprise two upper chords, two lower chords, and with the web members of two upper chords and the welding of two lower chords, described web member is along described upper chord and the equally distributed one group of zigzag pole of described lower chord length direction, each web member place plane is all positioned at the vertical plane that upper chord is vertical with lower chord, the top margin of each zigzag web member is all positioned at above upper chord, its free end is bent downwardly, these top margin two ends and two upper chords weld respectively, the base of each zigzag web member is all positioned at below lower chord, its free end is bent upwards, these two ends, base and two lower chords weld respectively, the zigzag of adjacent two web members turns upside down again.
A kind of steel bar girder, comprise a upper chord, two lower chords, and with the web members of a upper chord and the welding of two lower chords, web member is along upper chord and the equally distributed one group of acute angle shape pole that has a bottom horizontal of lower chord length direction, each web member place plane is all positioned at the vertical plane vertical with lower chord with upper chord, two limits of acute angle shape of each web member are all positioned at the outside of a upper chord and two lower chords, wherein lower chord is positioned at the interior angle top of acute angle shape, another root lower chord is positioned at the free end on acute angle shape base, a upper chord is positioned at the free end of acute angle shape hypotenuse, and the base free end of each web member is bent upwards, and hypotenuse free end is bent downwardly, and two ends, base and two lower chords weld respectively, hypotenuse two ends and lower chord and upper chord weld respectively, the acute angle shape interior angle of adjacent two web members is towards the opposite again.
A kind of steel bar truss floor support plate, is made up of steel bar girder and template welding, and described template is the open plate with trapezoid-shaped openings, and described steel bar girder is any in above-mentioned steel bar girder, and the trapezoidal groove that is placed in template is welded and fixed.
A kind of steel bar girder superimposed sheet, formed by steel bar girder, template, concrete, described template is the open plate with trapezoid-shaped openings, described steel bar girder is any in above-mentioned steel bar girder, and the trapezoidal groove that is placed in template is welded and fixed, described concrete is built in template, and the end face of concrete is lower than the top of steel bar girder, and the bottom of steel bar girder upper chord is higher than the end face of concrete.
Therefore, owing to having adopted discontinuous web member, save a large amount of steel, save cost.Because continuous web member becomes single web member, each film bar has again opening, can be positioned very easily to weld between top-bottom chord, does not need main equipment, not high to the required precision of top-bottom chord location and web member, makes and brings convenience to steel bar girder.
Below in conjunction with drawings and Examples, the utility model is further described.
Accompanying drawing explanation: Fig. 1 is the partial structurtes schematic diagram of the utility model embodiment 1 and embodiment 3 steel bar girders;
Fig. 2 is the left view of Fig. 1 of embodiment 1;
Fig. 3 is the structural representation of the zigzag pole of a web member 3a in Fig. 2;
Fig. 4 is the structural representation of the web member 3a adjacent with Fig. 3;
Fig. 5 is the left view of Fig. 1 of embodiment 3;
Fig. 6 is the schematic diagram of the acute angle shape pole of a web member 3C in Fig. 5;
Fig. 7 is the schematic diagram of the web member 3C adjacent with Fig. 6;
Fig. 8 is the partial structurtes schematic diagram of the utility model steel bar truss floor support plate;
Fig. 9 is the partial structurtes schematic diagram of the utility model steel bar girder superimposed sheet.
The specific embodiment: embodiment 1 as shown in Figures 1 to 4.This steel bar girder has two upper chords 1 and two lower chords 2, weld along the equally distributed one group of web member 3a of length direction of upper chord 1 and lower chord 2 and upper chord 1 and lower chord 2, each web member 3a is all positioned at the vertical plane vertical with lower chord 2 with upper chord 1, web member 3a is a zigzag pole, the zigzag top margin of each web member 3a is all positioned at above upper chord 1, its free end is bent downwardly and is adjacent to a upper chord 1, these top margin two ends and two upper chords 1 weld, each zigzag web member 3a base is all positioned at below lower chord 2, its free end is bent upwards and is adjacent to a lower chord 2, these two ends, base and two lower chords 2 weld.The zigzag of adjacent two web member 3a turns upside down again, so the welding of the zigzag top margin free end of adjacent two web member 3a is not same upper chord 1, equally, the zigzag base free end welding of adjacent two web member 3a neither same lower chord 2, the zigzag of adjacent two web member 3a, the hypotenuse opposite direction on connection top margin and base.
Embodiment 3 is as shown in Fig. 1, Fig. 5, Fig. 6, Fig. 7.This steel bar girder has a upper chord 1 and two lower chords 2, be uniformly distributed one group of acute angle shape pole that has bottom horizontal along upper chord 1 and lower chord 2 length directions, be angle web member 3c, web member 3c place, each angle plane is all positioned at the vertical plane vertical with lower chord 2 with upper chord 1, two limits of acute angle shape of each angle web member 3c are all positioned at upper chord 1 and two lower chord 2 outsides, wherein lower chord 2 is positioned at the acute angle shape interior angle top of angle web member 3c, another root lower chord 2 is positioned at the free end on the acute angle shape base of angle web member 3c, upper chord 1 is positioned at the free end of angle web member 3c acute angle shape hypotenuse, and web member 3c base, each angle free end is bent upwards and is adjacent to a lower chord 2, and hypotenuse free end is bent downwardly and is adjacent to upper chord 1, the two ends, base of each angle web member 3c and two lower chords 2 weld respectively, hypotenuse two ends and lower chord 2 and upper chord 1 weld respectively.The acute angle shape interior angle of adjacent two angle web member 3c is towards the opposite again, so adjacent two angle web member 3c have become isosceles triangle in Fig. 5, in upper chord 1 and two lower chords 2 are enclosed in.
Embodiment 4 has increased by one group of oblique angle web member 3d on embodiment 3.As shown in Figure 1, between every two adjacent angle web member 3c, there are two to weld along upper chord 1 and the uniform oblique angle web member 3d of lower chord 2 length directions and upper chord 1 and two lower chords 2, these two the oblique angle web member 3d separately scope of the inclined angle alpha of place plane and lower chord 2 are 30 °-70 °, in the same manner as in Example 2, in fact the scope of α also can be larger, but take α as 45 ° better.But the incline direction of two oblique angle web member 3d is contrary.The shape of two oblique angle web member 3d is identical with angle web member 3c, also be acute angle shape pole, two limits of acute angle shape of each oblique angle web member 3d are all positioned at the outside of upper chord 1 and two lower chords 2, wherein a lower chord 2 is positioned at web member 3d acute angle shape interior angle top, oblique angle, another root lower chord 2 is positioned at base free end, upper chord 1 is positioned at hypotenuse free end, and two ends, base and two lower chords 2 weld respectively, and hypotenuse two ends and lower chord 2 and upper chord 1 weld.The acute angle shape interior angle of these two oblique angle web member 3d is towards the opposite again.
In above-described embodiment 1-4, web member 3a, diagonal web member 3b, angle web member 3c, oblique angle web member 3d is the web member of steel bar girder, is also the stirrup of upper chord 1 and lower chord 2.
Embodiment 5 as shown in Figure 8.The bottom of steel bar truss floor support plate is template 4, and this template 4 is the open plate with trapezoid-shaped openings, rather than dull and stereotyped, is evenly equipped with one group of same trapezoidal elongated slot 4a being parallel to each other in template 4.On two hypotenuses of the several rows of trapezoidal elongated slot 4a that is placed in template 4 of any steel bar girder in embodiment 1-4, and be welded and fixed, can certainly be placed on bottom the welding of trapezoidal elongated slot 4a.
Embodiment 6 as shown in Figure 9.Steel bar girder superimposed sheet is by steel bar girder, and template 4 and concrete 5 form, and has built concrete 5 in fact exactly in the template 4 of embodiment 5, but the end face of concrete 5 is lower than the top of steel bar girder, and the bottom of described steel bar girder upper chord 1 is higher than the end face of concrete 5.Make steel bar truss floor support plate in factory after, build again this part concrete 5, can reduce construction site and build the amount of concrete, so to whole concretes not having be built in factory, and the top of steel bar girder is exposed to the end face of concrete 5, because at construction site, also need to be at the horizontal reinforcing bar of steel bar girder top colligation.
In Fig. 8, Fig. 9, also has the overlap joint mouth 4b of adjacent two templates 4.
Claims (6)
1. a steel bar girder, comprise two upper chords, two lower chords, and with the web members of two upper chords and the welding of two lower chords, it is characterized in that: described web member (3a) is along described upper chord (1) and one group of uniform zigzag pole of described lower chord (2) length direction, each web member (3a) place plane is all positioned at the vertical plane vertical with lower chord (2) with upper chord (1), the zigzag top margin of each web member (3a) is all positioned at upper chord (1) above, its free end is bent downwardly, two upper chords (1) lay respectively at the two ends of top margin, and weld with top margin, the zigzag base of each web member (3a) is all positioned at lower chord (2) below, its free end is bent upwards, two lower chords (2) lay respectively at two ends, base, and weld with base, the zigzag of adjacent two web members (3a) turns upside down again.
2. steel bar girder according to claim 1, it is characterized in that: between adjacent two web members (3a), also have two along upper chord (1) and the uniform diagonal web member (3b) of lower chord (2) length direction, the shape of diagonal web member (3b) is identical with web member (3a), also be zigzag pole, two diagonal web members (3b) separately place plane are identical with the inclined angle alpha of lower chord (2), the scope of α is 30 °-70 °, but incline direction is contrary, the zigzag top margin of each diagonal web member (3b) is all positioned at upper chord (1) above, weld with two upper chords (1) respectively at its two ends, the zigzag base of each diagonal web member (3b) is all positioned at lower chord (2) below, weld with two lower chords (2) respectively at its two ends, the zigzag of above-mentioned two diagonal web members (3b) turns upside down again.
3. a steel bar girder, comprise a upper chord, two lower chords, and with the web members of upper chord and the welding of two lower chords, it is characterized in that: described web member is the acute angle shape pole that has bottom horizontal along described upper chord (1) and uniform one group of described lower chord (2) length direction, be angle web member (3c), place, each angle web member (3c) plane is all positioned at the vertical plane vertical with lower chord (2) with upper chord (1), two limits of acute angle shape of each angle web member (3c) are all positioned at the outside of upper chord (1) and two lower chords (2), wherein a lower chord (2) is positioned at the acute angle shape interior angle top of angle web member (3c), another root lower chord (2) is positioned at the free end on acute angle shape base, this base free end is bent upwards, upper chord (1) is positioned at the free end of acute angle shape hypotenuse, this free end is all bent downwardly, two ends, base and two lower chords (2) welding, hypotenuse two ends and a lower chord (2) and upper chord (1) welding, the acute angle shape interior angle of adjacent two angle web members (3c) is towards the opposite again.
4. steel bar girder according to claim 3, it is characterized in that: between adjacent two angle web members (3c), also have two along upper chord (1) and the uniform oblique angle web member (3d) of lower chord (2) length direction, the shape of oblique angle web member (3d) is identical with oblique angle web member (3c), also be acute angle shape pole, two oblique angle web members (3d) separately place plane are identical with the inclined angle alpha of lower chord (2), the scope of α is 30 °-70 °, but incline direction is contrary, two limits of acute angle shape of each oblique angle web member (3d) are all positioned at the outside of upper chord (1) and two lower chords (2), wherein a lower chord (2) is positioned at the acute angle shape interior angle top of oblique angle web member (3d), another root lower chord (2) is positioned at the free end on acute angle shape base, upper chord (1) is positioned at the free end of acute angle shape hypotenuse, weld with two lower chords (2) respectively at two ends, described base, weld with a lower chord (2) and upper chord (1) respectively at described hypotenuse two ends, the acute angle shape interior angle of above-mentioned two oblique angle web members (3d) is towards the opposite again.
5. a steel bar truss floor support plate, formed by steel bar girder and template welding, template is the open plate with trapezoid-shaped openings, in template, be evenly equipped with one group of identical trapezoidal elongated slot being parallel to each other, it is characterized in that: described steel bar girder is the steel bar girder described in any in claim 1-4, and described each the trapezoidal elongated slot (4a) that is placed in described template (4) is welded and fixed.
6. a steel bar girder superimposed sheet, by steel bar girder, template, concrete forms, template is the open plate with trapezoid-shaped openings, in template, be evenly equipped with one group of identical trapezoidal elongated slot being parallel to each other, it is characterized in that: described steel bar girder is the steel bar girder described in any in claim 1-4, and described each the trapezoidal elongated slot (4a) that is placed in described template (4) is welded and fixed, described concrete (5) is built in template (4), the end face of concrete (5) is lower than the top of described steel bar girder, be that the bottom of described steel bar girder upper chord (1) is higher than the end face of concrete (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320750106.4U CN203603333U (en) | 2013-11-21 | 2013-11-21 | Steel bar truss and steel bar truss building bearing plate and steel bar truss composite slab thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320750106.4U CN203603333U (en) | 2013-11-21 | 2013-11-21 | Steel bar truss and steel bar truss building bearing plate and steel bar truss composite slab thereof |
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| Publication Number | Publication Date |
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| CN203603333U true CN203603333U (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320750106.4U Withdrawn - After Issue CN203603333U (en) | 2013-11-21 | 2013-11-21 | Steel bar truss and steel bar truss building bearing plate and steel bar truss composite slab thereof |
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| CN (1) | CN203603333U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726600A (en) * | 2013-11-21 | 2014-04-16 | 智房科技股份有限公司 | Steel bar truss, steel bar truss floor bearing plate of steel bar truss, and steel bar truss composite slab of steel bar truss |
-
2013
- 2013-11-21 CN CN201320750106.4U patent/CN203603333U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726600A (en) * | 2013-11-21 | 2014-04-16 | 智房科技股份有限公司 | Steel bar truss, steel bar truss floor bearing plate of steel bar truss, and steel bar truss composite slab of steel bar truss |
| CN103726600B (en) * | 2013-11-21 | 2015-11-18 | 智房科技股份有限公司 | Steel bar girder and steel bar truss floor support plate thereof and steel bar girder superimposed sheet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140521 Effective date of abandoning: 20151118 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |