Tony Bryer
27th October 2008, 02:48 AM
Do I need to enter the self weight of a beam?
Yes: the usual practice is to enter a nominal UDL of (say) 0.5 for smaller steel beams and 1.0 for larger ones.
What's a destabilising load?
As an unrestrained beam is loaded it tends to twist. A non-destabilising load, such as a concrete floor bearing on the top flange, will oppose such rotation. A destabilising load, such as a free-standing masonry panel, will tend to exacerbate it.
What's a SFB ... and an ASB?
A SFB (Slimflor Fabricated Beam) former comprises a UC section with a plate projecting 100mm either side welded on to the lower flange. An ASB (Asymmetric Beam) section is a rolled I section with the bottom flange 110mm wider than the top flange.
My local steel stockholder hasn't heard of section size xxxx
The section sizes and data in our data file are taken from the 'Blue Book'. You should note that some sections are subject to limited availability and/or are only rolled in S275 or S355 grade steel, not both.
Yes: the usual practice is to enter a nominal UDL of (say) 0.5 for smaller steel beams and 1.0 for larger ones.
What's a destabilising load?
As an unrestrained beam is loaded it tends to twist. A non-destabilising load, such as a concrete floor bearing on the top flange, will oppose such rotation. A destabilising load, such as a free-standing masonry panel, will tend to exacerbate it.
What's a SFB ... and an ASB?
A SFB (Slimflor Fabricated Beam) former comprises a UC section with a plate projecting 100mm either side welded on to the lower flange. An ASB (Asymmetric Beam) section is a rolled I section with the bottom flange 110mm wider than the top flange.
My local steel stockholder hasn't heard of section size xxxx
The section sizes and data in our data file are taken from the 'Blue Book'. You should note that some sections are subject to limited availability and/or are only rolled in S275 or S355 grade steel, not both.