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Re: SAP2000

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No, you don't use negative masses.

Russell
----- Original Message -----
From: "Gobo, Gina" <ggobo(--nospam--at)DLRGROUP.com>
To: "'seaint'" <seaint(--nospam--at)seaint.org>
Sent: Friday, February 04, 2000 12:21 PM
Subject: SAP2000


> In SAP2000, when adding joint mass loads converted from the structure dead
> loads (gravity loads), do you add them as negative mass loads (downward
> direction)? I was not sure if mass loads have a positive or negative
value.
> As dead weight, the loads are acting in the downward direction (gravity).
> But when you convert them to a mass, do you still use the negative sign to
> indicate a downward direction?
>
>
> Gina T. Gobo, E.I.T.
> Structural Engineering
> DLR Group
> Seattle
> Ph. 206.461.6000
> Fax 206.461.6049
> ggobo(--nospam--at)dlrgroup.com
>
>
>
>