StructuralPoke
Well-known member
I'm working on an existing precast parking garage. This garage has precast concrete guard rails that are suspended 12" above the deck and the connections are failing. Long story short, we are going to try to keep vehicles from hitting the existing rails by placing a new guardrail in front of the existing ones. These will span 28' between columns. I've got a structural tube section to handle the load, but the client is wondering about the corrugated-looking bridge guardrails.
Best I can tell from my internet searching these things are called thrie beams and nobody will tell me how to actually design one. Are these all proprietery systems? I need to check if one of these will span the 28' between column (center-to-center, 26'3 clear span) for a simple vehicle impact point load of 10k (the 6k x 1.6 ~ 10k). These will be simply for parking perpendicular to the beam. intermediate supports are not an option.
Any help?
Best I can tell from my internet searching these things are called thrie beams and nobody will tell me how to actually design one. Are these all proprietery systems? I need to check if one of these will span the 28' between column (center-to-center, 26'3 clear span) for a simple vehicle impact point load of 10k (the 6k x 1.6 ~ 10k). These will be simply for parking perpendicular to the beam. intermediate supports are not an option.
Any help?