SmartLam GL17C Brochure - Tilling Timber
SmartLam GL17C Brochure - Tilling Timber
SmartLam GL17C Brochure - Tilling Timber
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SINGLE SPAN RIDGE/INTERMEDIATE ROOF BEAM<br />
AS 4055 CLASSIFICATION C1, C2 AND C3<br />
INTERMEDIATE<br />
ROOF BEAM<br />
'X'<br />
Roof<br />
Load<br />
Width<br />
RIDGE BEAM<br />
'X' = Rafter<br />
Span1<br />
'Y' = Rafter<br />
Span2<br />
Rafter<br />
'Y'<br />
Rafter<br />
Roof Beam<br />
Span<br />
Ridge Beam<br />
Span<br />
Roof Load Width = (X+Y)/2<br />
Roof Load Width = (X+Y)/2<br />
EXAMPLE:<br />
wind speed = C3<br />
sheet roof - 40 kg/m 2<br />
beam span = 4500 mm<br />
X = 2000 mm Y = 3000 mm<br />
roof load width = (X+Y)/2 = 2500 mm<br />
Enter single span table at 3000 roof load width with column<br />
and read down to span equal to or greater than 4500 mm<br />
ADOPT:<br />
<strong>SmartLam</strong> GL17 - 295 x 65 mm<br />
Note: Not all sizes of <strong>SmartLam</strong> GL17 in this table are stocked in each state. Please check with your supplier before ordering.<br />
Roof load width (mm) 1800 3000 4200 5400 6600 7800<br />
Member size<br />
DxB (mm)<br />
Roof mass<br />
(kg/m 2 )<br />
Maximum Ridge span (mm)<br />
Single span<br />
130x65 40 2700 2100 1750 1550 1400 1300<br />
75 2750 2150 1850 1600 1450 1350<br />
165x65 40 3450 2650 2250 2000 1800 1650<br />
75 3550 2750 2350 2050 1850 17005<br />
195x65 40 4150 3150 2650 2350 2150 19505<br />
75 4200 3250 2750 2450 22005 205010<br />
230x65 40 4950 3700 3150 2800 2500 5 2300 10<br />
75 5000 3850 3250 5 2900 10 2600 15 2400 15<br />
260x65 40 5700 4200 3550 31505 285010 265015<br />
75 5700 4350 370010 325015 295020 270025<br />
295x65 40 6500 4800 40505 355010 325015 300020<br />
75 6450 49505 420015 370020 335025 310030<br />
330x65 40 7300 53005 450010 395015 360025 330030<br />
75 7100 5500 10 4650 20 4100 25 3700 30 3400 40<br />
360x65 40 7950 5750 5 4850 15 4300 20 3900 30 3600 35<br />
75 7650 5 5950 15 5000 20 4450 30 4000 35 3700 45<br />
395x65 40 8700 5 6300 10 5300 20 4700 25 4250 35 3900 40<br />
75 83505 655020 545025 485035 440045 405050<br />
425x65 40 9300 5 6800 15 5650 20 5000 30 4550 40 4200 45<br />
75 8900 10 7050 20 5850 30 5150 40 4700 50 4300 55<br />
460x65 40 1005010 735020 610025 540035 485045 450050<br />
75 9600 15 7650 25 6300 35 5550 45 5050 55 4650 65<br />
495x65 40 10800 15 7950 25 6500 30 5750 40 5200 50 4800 55<br />
75 1030015 825030 675040 595050 540060 495070<br />
<strong>SmartLam</strong> GL17 Design Guide 33
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