Technical FAQ
Questions in Frew
Flexible retaining wall analysis
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- Changes to wall EI do not cause changes in deflection or bending moment
(1823 views) - I want to paste a bitmap image into my Frew file title block. I have tried saving the bitmap as all of the available options in Paint (I see the help file says RGB but I don't know which one that is) but when I click paste nothing happens. How?
(746 views) - Is it possible to print all output stages at once using frew? I've tried the 'batch plotting' but it only printed multiple copies of the first output stage
(1183 views) - Occasionally analyses obtain bending moments below the wall and very erratic results e.g. for total stresses
(1432 views) - Analysis fails with "Vertical effective stress < 0" when using undrained pore pressure calculations (Frew v18.2 and earlier)
(1399 views) - When we assign a Preload of 600kN/m to a Strut element at Stage 7, the program analyses and output a Strut load of 112kN/m only which is smaller than the Preload (600kN/m) at the same Stage !! Can you tell us how come the discrepancy between assigned Preload and the output Strut load?
(1324 views) - Is there any way to estimate the maximum displacement of the wall under a horizontal load?
(1087 views) - The passive softening option in the analysis method dialog box appears to be locked and cannot be accessed.
(1290 views) - I am using FREW version 18.2. Just want to know the way of modelling the change from undrained soil to drained soil in long term.
(1952 views) - We have one query about how to input the strut under prestress condition. Is the strut stiffness equal to 0 in different excavation level?
(1112 views)