Creep Analysis 3
The blog article of Creep Analysis 3 showed how Dr. Ghali et al. explained the creep analysis by flexibility methods.
To better understand the creep behavior, solve the previous example in a less efficient way. Here, different sign conventions will be applied.
Sign Convention
At time t0, the immediate displacements/rotations for member 1 due to uniform loads are
At time t1, the immediate displacements/rotations due to uniform loads at span 2 are (MIDAS file ex4.2A)
The signs in the table are according to the global axis. Converting into element local axis,
Restrained displacements/rotations are
Let
Restrained member end forces are
The remaining calculations are the same as the previous example.