Wind load for a gable roof on an open structure
Wind load for a gable roof on an open structure
(OP)
I'm reviewing some shop drawings for wind load compliance and noticed a gray area in ASCE 7-98. I'm curious to know how everyone else would approach this situation.
The structure is an open structure with a gable roof. The designer used the MWFRS coeff. for an enclosed, partially enclosed building (Fig. 6-3) for their analysis. But the building is not enclosed; it's open. For an open building it only provides MWFRS coeff. for a monoslope roof (Table 6-9). Should I interpret each side of the gable roof as a monoslope roof or is their interpretation correct?
Thanks,
Juan
The structure is an open structure with a gable roof. The designer used the MWFRS coeff. for an enclosed, partially enclosed building (Fig. 6-3) for their analysis. But the building is not enclosed; it's open. For an open building it only provides MWFRS coeff. for a monoslope roof (Table 6-9). Should I interpret each side of the gable roof as a monoslope roof or is their interpretation correct?
Thanks,
Juan






RE: Wind load for a gable roof on an open structure
I think u r right, we can take the co-eff of monoslope roof
Prabhakar
RE: Wind load for a gable roof on an open structure
RE: Wind load for a gable roof on an open structure
In Australia the design code AS1170.2 indicates that free a standing roof is treated depending on whether they are; mono slope, pitched or troughed, clear under or blocked under (truck storage, hay shed, etc).
I would imagine that the US codes have some similar form of requirements.
AS1170.2 indicates that monoslope a roof is not the same as one side of a gable roof. Although having said that for slopes <15deg they are essentially the same, for slopes near 30deg they are very different.
regards
sc
RE: Wind load for a gable roof on an open structure
Juan
RE: Wind load for a gable roof on an open structure