plywood, glulam,cranked beam

[graumsmith]

hi all,

does anyone have any experience with glulam beams.

i'm looking for an alternative to a cranked beam for a stairway to join my existing entrance landing to a new raised level ground floor that i raised to allow head height in the basement.

hopefully the images below will go some way to explaining things better.

//media.diynot.com/156000_155224_43364_13349202_thumb.jpg

My building regs guy has suggested that i use a fabricated cranked beam in rolled steal but for aesthetics i was looking into a wood option.

i am a furniture maker by trade and have the where-with-all to laminate up my own 'glulam-beam' to the exact measurements i need using 18mm birch ply, probably 3 layers of.

what do people think about this?

Thank you all very much in adavnce

please let me know if i can make anything clearer for you

all the best

Graham

 

[Jasonb]

Can you get it cut out of a flat steel plate or even welded from two bits of flat bar and then clad with timber either side.

Though as you say gluing up a few sheets of birch and then cutting the cranked member from that will liekly be strong enough, can't your engineer do the calcs for that option?

J