which element can simulate the unbonded pretressing steels?

liufeng19 · Post by **liufeng19** » Sat Dec 16, 2006 7:12 am

I am modeling columns with unbonded prestressing steels, using nonlinear beam-column elements. Obviously, using steel layer in fiber section is not appropriate because of the unbonding and the pretressing. Is there an special element to simulate the unbonden pretressing steels in columns when the steels are not in centre? If not, what is the solution to better the simulation by made elements?

silvia · Post by **silvia** » Sat Dec 16, 2006 10:29 am

a lot of people use an additional element to represent the prestressing, they use the truss, or the corotational truss, with initial strain.

liufeng19 · Post by **liufeng19** » Sat Dec 16, 2006 6:18 pm

thank you very much
Silvia

cvjchuang · Post by **cvjchuang** » Fri Mar 20, 2009 7:59 am

silvia
now ,i want to know how to set inital strain for truss element?
it seems that there is not have the answers at forum.