Prestress Loss in Pre-tensioned beams

[JFH]

Hello

The different parts of the stress losses can be obtained from Graphic.
I have already described the procedure in another post.

Creep and shrinkage for quad elements

Hello The effect of creep and shrinkage can be obtained from a QUAD-system. You have to look at the 4XXX or 5XXX load cases. I will do the calculation using the following TEDDY example. TEDDY > File > Examples > csm > english > csm4_quad_singlespan.dat Open the Graphic (Wingraf) and visualise the tendon stresses (or forces) [grafik] The difference between the 4XXX load cases describe the losses due to relaxation, creep and shrinkage. For example: (1) load case 4011: 1279,73 MPa (on the …

Apart from that, the workflow to define the construction phases is explained in our online bridge design tutorial.

Bridge Design Training #10 - Construction Stage Manager (CSM)

You will also find some useful examples in the TEDDY.

TEDDY > File > Examples > csm > english > more > e.g. csm3_casting_bed_method.dat.

Best regards
Frederik Höller
Your SOFiSTiK Support Team