handrail loads per ASCE 7 section 4.5 concurent with other loads
handrail loads per ASCE 7 section 4.5 concurent with other loads
(OP)
Section 4.5 requires the handrail and guardrail "systems" be designed for 200lbs point load and non-concurrent 50 plf line load at any direction and any point. Got it.
On a cantilevered balcony, would this load be added concurrently to the gravity DL and LL for the design of the balcony slab?
On a cantilevered balcony, would this load be added concurrently to the gravity DL and LL for the design of the balcony slab?
RE: handrail loads per ASCE 7 section 4.5 concurent with other loads
Dik
RE: handrail loads per ASCE 7 section 4.5 concurent with other loads
RE: handrail loads per ASCE 7 section 4.5 concurent with other loads
Upon closer reading, the bridge spec. also requires the 200lb point load in any direction concurrent with 50lb/ft uniform loads BOTH HORIZONTAL AND VERTICAL for the railing and the posts. Granted, you could throw a load 10 times higher at a bridge deck cantilever and it would pass easily, because we must also consider the case where the sidewalk is removed and traffic rail is on the cantilever, subject to truck wheel loads and impact loads.
RE: handrail loads per ASCE 7 section 4.5 concurent with other loads
In the logic camp for concurrent load is the argument that you need the people to produce the handrail load.
In the logic camp for non-concurrent load is the argument that the gaurd rail load is from a person falling against the rail and is it not likely that that this rairly occuring insident would occur when you have the deck loaed to 60psf.
RE: handrail loads per ASCE 7 section 4.5 concurent with other loads
If I was to rationalize another way if the balcony is loaded to the full live load then the standing room between people is about nil and you'd have the edge pedestrians pressed against the railings.
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