Prestressed/post-tensioned concrete bridges - Computational Analysis and Design of Bridge Structures - page 138

Analysis type: beam

Analysis type: tendon

Analysis type: plane stress

(a)

(b) Analysis type: solid
Figure 5.11 2D and 3D post-tensioning analysis types. (a) 2D model. (b) 3D model. (Data
from LUSAS ® , “LUSAS Bridge/Bridge Plus Bridge Engineering Analysis,” 2012,
http://www.lusas.com/products/information/eurocode_pedestrian_loading
.html.)

short - term composite models, respectively, are demonstrated in Figure 5.13.
Many customized 2D prestressed beam computer programs are available
for analysis where customization is made by dividing beams into small
segments of prismatic members with tendons modeled as applied loading
within each segment, which was discussed in Section 5.2.1. For a 2D beam