Nonliner TH3 and how to fix support in end step

SOFiSTiK SOFiSTiK Structural Desktop
1

Hi every body
I hope you are pretty good
I have created an arc beam using the cable shortening in the stage according to the theory GEOMETRICAL NONLINER TH3 in 4 step and iam sending pic from 1 and 4 stage .

Now I intend to fix the supoort in step 5 and apply a certain amount of intentional force on the beam

1
11677Ă—731 39.3 KB

2
21675Ă—741 40.8 KB

Can someone help me how to prove the support in step 5 when the beam is arched?

2

Hello

Have you seen the TEDDY Example about active bending?

TEDDY > File > Examples > ase > english > active_bending > active_bending_overview.dat

Apart from these examples you could have a look into the ASE manual.

SSD / TEDDY > Help > User Manuals > All Manuals… > ASE > chapter 2.14 Active Bending

Best regards
Frederik Höller
Your SOFiSTiK Support Team

1 Like
3

Hello dear Frederik Höller
Yes, I read the examples and my main problem is that if in the first step our support are hinge, how can I turn the support into a rigid after finding form ?
Thank you for attention
Best regards

4

hi,
just use syst plc, in sofiplus add spring to fix support with new group number (e.g. 9), then for lc’s from 1 to 4 turn off grp 9.

+prog ase
grp - on
grp 9 off
lc 1
	...
end

syst plc 1
grp - on
grp 9 off
lc 2
   lcc 1
   ...
end

...

+prog ase
syst plc 4
grp - on
lc 5
   lcc 4
   ...
end

in ase you can also clear stresses by grp facs 0

best regards, sb