The Smart R-Bar™ is an Australian designed lightweight lintel used for supporting brickwork over openings.
Smart R-Bars™ are suitable for applications where a Render Finish is required. One side has holes making it easier for the render to stick to the angle.
- Load Tested in accordance with AS/NZS 1170.1:2002
- Australian Design Mark No. 201215561
- Cost advantages over other Render lintels.
Section Properties
DIMENSIONS |
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SECTION PROPERTIES |
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Mass per Metre |
Gross Section Area |
About x-axis |
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About y-axis |
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About n-axis |
About p-axis |
Designation |
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Ag |
Ix |
Zx |
Iy |
Zy |
In |
Ip |
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kg/m |
mm^2 |
10^6 mm^4 |
10^3 mm^3 |
10^6 mm^4 |
10^3 mm^3 |
10^6 mm^4 |
10^6 mm^4 |
100 x 100 x 6 Rendabar |
7.92 |
942 |
1.36 |
18.78 |
0.38 |
8.82 |
0.98 |
0.75 |
150 x 100 x 6 Rendabar |
9.75 |
1242 |
3.26 |
34.33 |
0.53 |
9 |
2.97 |
0.82 |
Buda R-bar 100 x 100 x 6.0 -Safe Load Table
R-bar |
Span (mm) |
900 |
1200 |
1500 |
1800 |
2100 |
2400 |
100 x 100 x 6.0 |
Bar Length(mm) |
1200 |
1500 |
1800 |
2100 |
2400 |
2700 |
7.92kg/m |
UDL (kg/m) |
1950 |
1145 |
755 |
435 |
285 |
185 |
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Point Load(kg) |
1015 |
775 |
605 |
505 |
405 |
305 |
Buda R-bar 150 x 100 x 6.0 -Safe load Table
R-bar |
Span (mm) |
1800 |
2100 |
2400 |
2700 |
3000 |
3300 |
3600 |
150 x 100 x 6.0 |
Bar Length(mm) |
2100 |
2400 |
2700 |
3000 |
3300 |
3600 |
3900 |
9.75kg/m |
UDL (kg/m) |
1035 |
715 |
475 |
335 |
247 |
185 |
145 |
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Point Load(kg) |
1005 |
825 |
686 |
585 |
505 |
405 |
342 |
Note:
- a minimum of three courses of bricks must be laid above the lintel beam.
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Load limited by deflection of 1/600 span. |
- Yielding stress fy=235 Mpa, tensile strength fu=375Mpa for both legs.
- Mass per metre calculation is based on 7850kg/m^3.
- Calculate bar length is span+150mm each end.
Notes on Safe Load Tables for Budabar R Bars
The Buda B and R bars are imported from China, material used is Q235B, and here Q stands for yielding.
According to PRC National Standard GB700-88(previous version GB700-79 part A3 & C3), the minimum yielding point is 235Mpa for thicknesses less than 17mm, tensile strength is between 375-400MPa.
- The B and R bars are simply supported at both ends.
- The B and R bars loaded such that the load acts vertically and equally on both sides of the web.
- Loads given are total (allowable) loads including lintel and brickwork.
- UDL loads are constant along the length of the bar.
- Point loads act at mid-span.
- 150mm minimum bearing support on to brickwork.
- Hot-dip galvanising to AS / NZS 4680:2006.
- Loads are in accordance with AS / NZS 1170.1:2002.