huangyhg

linear scaling
i came across the phrase linear scaling when reading some material about structural analysis and load distribution and i have not been able to find out what the phrase means. does anyone have a definition? i have asked a few people at work and they are not familiar with the phrase, so i am wondering if it is also known as something else? thanks for your help.
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wow, this is done in so many situations that it's hard to know which you're looking for. examples:
say i know that the deflection for a steel beam due to 1.5 kips/ft is 1.25 in. and want to know the deflection due to 2.0 kip/ft. linearly scaling it up: 1.25 in. (2/1.5) = 1.67 in.
loads are linearly scaled up using load combination factors.
if the moment of inertia for a 6 in. wide plate is [whatever], then the moi for an 8 in. wide plate is [whatever]*(8/6)
if a 2 lb sinusoidal load causes 0.5%g acceleration, then a 3 lb load causes 0.5*3/2
the examples are endless.
sorry for the ambiguity of my post. specifically, i saw this when reading about the distribution of loads in a braced frame structure. it was refering to taking the total vertical load of a structure and determining the load in a brace
are you referring to the maxwell diagram for solving loads in pinned trusses?
mike mccann
mccann engineering

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