double problem with trus bars only tension or only compression

[Michele100100]

Hello everyone,

after run my calculation I have 1 error and 1 warning:

 1) INCORRECT USE OF RELEASE FOR TRUS MEMBER:

2)

it's my first time using only compression/only tension bars.

Attached my model.

Thanks

[Rafacascudo · Accepted solution]

you cannot have releases on truss bars . They are already full released bars .

If you want them to be tension or compression only bars and also have them supporting other forces as in your "Lashing" release type , then you have to forget truss bars and use regular bars with unidirectional releases in the Ux direction.

[Michele100100]

thanks.