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Bracing restraint in SPACEGASS

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JSuberi

Civil/Environmental
Aug 28, 2022
2
Hello
While designing a steel frame with a bracing and a horizontal load acting on the frame, how do I input the restraint for bracing in SPACE GASS. Even if the has hinge connection, will it be FFFFFF, since it can't rotate in any directions?
 
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I have never used SpaceGass, and further I don't know whether your FFFFFF terminology stands for 6[sub][ ][/sub]x[sub][ ][/sub]Fixed or 6[sub][ ][/sub]x[sub][ ][/sub]Free.[ ] However as a general rule in a three-dimensional frame analysis all six of the member end translational fixities for a "bracing member" would all be fixed (three translational degrees of freedom at each end), and five of the six member end rotational degrees of freedom would be free.[ ] The single rotational degree of freedom that needs to be fixed is one (and only one) of the two DOF's that represent rotation about the member's longitudinal axis.
 
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