Problem to do load cases Envelope in AQB

SOFiSTiK Teddy
1

Hello :slight_smile:

After using the CSM module, I have obtained different load cases. Following this, I would like to create envelopes from the different load cases obtained. I would like to create a load case that would be the Maximum envelope and another load case that would be the minimum envelope of 2 different load cases. I have seen that it was possible to do this with the GMAX/GMIN function, however, I do not get the expected results, the curves are wrong.

1 idea :

+PROG AQB
head Envelope (G+G’)
LC 7051
LC 7052
COMB GMAX LCST=8001 TITL=“Env_Max G+G’”
COMB GMIN LCST=8002 TITL=“Env_min G+G’”
STRE E
END

Also, I tried to create copies by copying the load cases but it still doesn’t give me the expected result.

2 idea :

+PROG AQB
head Enveloppe (G+G’)
LC 7051
LC 7052
COMB EXTR LC1 LCST=8010 TITL=“Copy_7051”
SOLO 7051
COMB EXTR LC1 LCST=8011 TITL=“Copy_7052”
SOLO 7052
COMB GMAX LCST=8013 TITL="Env_max "
COMB GMIN LCST=8014 TITL=“Env_min”
STRE E
END

I wonder if it is possible to make envelope curves via TEDDY that would allow us to perform operations on them later ? I know that it is possible to make the envelopes with Wingraf but it is not what I want to do.

Thank you for your help :slight_smile:

Antoine

2

you can do it in wingraf

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3

Thank you for your answer. :slight_smile: However, as I said at the end of my post, I don’t want to do it with Wingraf but with TEDDY. This would allow me to perform operations on it by combining it with other load cases.

Antoine

4

I am able to make envelopes on the different load cases when I want to get the internal forces with the SCOM command.

Example :

+PROG AQB urs:31.7
head Enveloppe M_y G+G’
LC 7051 $G+G’ T0 (50 days)
LC 7052 $G+G’ T_inf (50 years)
COMB EXTR SCOM LC1 LCST=8001 TITL=“PARTIE 1”
SOLO MY 7051
COMB EXTR SCOM LC2 LCST=8002 TITL=“PARTIE 2”
SOLO MY 7052
COMB GMAX LCST=8003 TITL=“Env_max G+G’”
COMB GMIN LCST=8004 TITL=“Env_min G+G’”
STRE E
END

However, I can’t make envelope curves for the constraints, the curves I get are wrong.
Could someone help me ?

Sincerely

Antoine