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mass source

mass source

mass source

(OP)
Hi,

When i define the lateral mass in Etabs, there are 2 items which needs to be checked (include lateral mass only and lumpimg mass at each floor level), should i check these 2 ??

thanks

RE: mass source

Include lateral mass only will be okay for most applications, but there will be occasions where vertical mode shapes become important. For example, if you have a cantilever, you will need to uncheck that option to include only lateral mass.

RE: mass source

(OP)
ok thanks, and for the second option, we should always check it or there are some occasions where we should uncheck ?? thanks

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