Barrel Vaulted Roof - Wind
Barrel Vaulted Roof - Wind
(OP)
Folks,
I was asked to calculate the wind pressures for a double barrel vaulted roof for a aircraft hangar.
ASCE does not have anything for such situations, the closest there is is a multispan gable roof or a sawtooth roof.
Has anyone calculated roof pressures for such buildings? Ideas?
I was asked to calculate the wind pressures for a double barrel vaulted roof for a aircraft hangar.
ASCE does not have anything for such situations, the closest there is is a multispan gable roof or a sawtooth roof.
Has anyone calculated roof pressures for such buildings? Ideas?






RE: Barrel Vaulted Roof - Wind
Looks like the closest is Fig-13 in ASCE7, or an adaptation of the arch section to a Mansard type roof as shown in the lower left of Figure 6-6.
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: Barrel Vaulted Roof - Wind
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: Barrel Vaulted Roof - Wind
However, for the perimeter (which is not defined), the wind pressures are based on ASCE Figures for Gable/Hip roofs with the theta being the spring-line slope.
RE: Barrel Vaulted Roof - Wind
RE: Barrel Vaulted Roof - Wind
My arched roof starts at 36' above ground. The rise is 16' and span is 103'.
I am using the requirements for "Roof on an elevated structure" and determining the C&C pressures. For C&C, the Footnote 4 requires the use of a pressure corresponding to hip/gable roofs for the perimeter and 0.87 * other factors.
Do you know what defines the perimeter? Is it similar to "a" dimension in other tables?