Farm building loads?

[mtlogcabin]

When designing a farm building is it a minimum l/180 for all members such as roof, walls, floors?1604.3 Serviceability.Structural systems and members thereof shall be designed to have adequate stiffness to limit deflections and lateral drift. See Section 12.12.1 of ASCE 7 for drift limits applicable to earthquake loading.

View attachment 2056

View attachment 2056

/monthly_2014_05/1604.3.PNG.51287647419194fa221deb109d5391eb.PNG

 

[north star]

( - - - - )

Section 1604.3.6 - Limits [ `12 IBC ] requires Table 1604.3 - Deflection limits, to be used,

unless a more restrictive standard is utilized.

Not sure what you are asking ?

( - - - - )

 

[mtlogcabin]

Farm building under Table 1604.3 have a specific D & L noted. Is that D & L to be used exclusively for roof and floor members since it is specific.

Example a farm building with no ceiling do I use the roof members portion for the roof system deflection limits which include l, S or W or do I us the D & L only and do not worry about the L, S & W.

 

[north star]

& [ ~ ] &



Use the D + L [ Dead Load plus Live Load ] !

From `12 IBC, Section [A] 102.1 General:

"Where there is a conflict between a general requirement and a specific requirement,

the specific requirement shall be applicable...........Where, in any specific case, different

sections of this code specify different materials, methods of construction or other

requirements, the most restrictive shall govern."

IMO, ...using the D + L will provide the most restrictive application, unless

the application is designed to a more stringent standard than the Table.



& [ ~ ] &