STRUCTURAL ENGINEERING FORUM OF INDIA [SEFI]

maheswaran · SEFI Member Joined: 10 Jan 2010 Posts: 3

y do we release the member in staad pro.. where should v release the member start and end of the member..??
please guide me sir,,,

biswajit.halder · SEFI Member Joined: 19 Jul 2012 Posts: 6

Generally we release members wherever there is absence of sufficient moment transfer and the connection is not fixed or rigid.

a121s · General Sponsor Joined: 13 Jun 2011 Posts: 48

I presume that you have a member between A and B, another member between C and D, and a 3rd member between B and D. By cantilevers, you are refering to the first and second members. Am I right?
If the 3rd member is merely resting on the first and second, and not attached through a proper moment connection in the case of steel, or a monolithic construction in the case of concrete, then you need to release MY and MZ on the first and second members. But MX should be released in one of those two only. Releasing MX on both of them will make the 3rd member torsionally unstable.
Alternatively, you can release MX, MY and MZ at node B of member 3, and MY and MZ at node D of member 3. In this case, you won't release anything in the first and third members.

Vijay Solanki · SEFI Member Joined: 05 Feb 2012 Posts: 19

Dear,

As you got the answer for why do we release moments in staad pro, here is a link showing how to release moments in beams in staad pro.

https://youtu.be/UcbelletS18

saikiran gone · General Sponsor Joined: 22 Apr 2016 Posts: 217