These variables have to marked as variables in the formulas with a #: e.g. Yrt ‘=0.5*#Wt-#Wf’
Regarding the second issue with the variable H in SOFiMSHC (or in SOFiPLUS): For an interpolation of the cross section, it is necessary to set the reference on the axis. If only the structural lines are input in SOFiMSC (or in SOFiPLUS) no interpolation of the cross section is done.
If the problems persist, please contact support@sofistik.com and send the input file.
With kind regards
Sabine Fahrendholz
Product Management
Hello,
thank you for the response and the data file.
The interpolation of the cross sections depends on several requirements.
At first, in your master section 1 the polygonal points 1,2,3,4 are referred to the point 0. The point 0 is defined as a static point because it does not have variables. No interpolation is done.
The variables TVAR are defined in program SOFiMSHC at the axis. AQUA does not used formulas in record TVAR which are defined in AQUA. The solution is to use the formula with the variable H at the polygonal point. I have modified the cross section definition.
To understand the behaviour of the interpolation I have defined the section 11. Here the variable H is defined with TVAR ‘H’ 0. Then the master cross section 11 has following definition:
e.g. for point 2 2 ‘=#B/2’ ‘=-#H+1-1,-1.3’ -> Z coordinate ist defined twice -> first part with the formula using H and the second part -1.3 only for the master cross section. The first part with the formula is only calculated after SOFiMSHC with the second AQUA. The master cross section is not used for the system and not used for design.
I hope it helps.
With kind regards
Sabine 1.dat (2.2 KB)
If I do not misunderstand, the key point for axis variable to work is “The solution is to use the formula with the variable H at the polygonal point.” as you said in the above post.
Therefore using DERIVED VARIABLES, such as TVAR ‘A’ ‘=#H+1-1’ at the polygonal point is NOT possible
SECT 11
STO#B 1
TVAR 'H' 0 ! only H is defined in SOFiMSHC
TVAR 'A' '=#H+1-1'
POLY TYPE MNO
O 1
VERT NO Y Z
1 '=#B/2' 0
2 '=#B/2' '=#A,1.3' $ A is derived variable
3 '=-#B/2' '=#A,1.3' $ A is derived variable
4 '=-#B/2' 0
The above code doesn’t work.
If axis variable could work with DERIVED VARIABLES, it will simplify user’s input as shown below:
The variables in the red frame are derived variables.
The TVAR variables are only evalutated later in the 2nd AQUA run for the section interpolation after defining the system with the axis and TVAR variables in SOFiMSHC! That’s why in the 1st AQUA the value of the TVAR variable which is defined in SOFiMSHC is not known and not used for the master cross section.
In CADINP several variables are available:
TVAR – for the variables of the cross section along an axis
LET and STO variables – please not the basic manual ‘SOFiSTiK Basics’ chapter 9.2.14
LET variables are only valid within the current program, whereby STO variables are saved and can be used in several programs of the input file.
The limitation of a formula is 255 characters! Why do you need such long formulas?
Please send the input file with a description to our support: support@sofistik.com
I’m struggling with a similar issue as discussed above and would be grateful to receive some guidance.
I’m also trying to make use of derived variables in my cross-section definition, but found that these derived variables will not be evaluated correctly at the interpolation stage during the second AQUA run. Is there a workaround?
To be specific, in my case, I’m defining the web inclination based on TVAR variables as shown below. As mentioned, this will not work correctly during interpolation. In my cross-section definition I need t use the web inclination to define some stiffeners on the web. Now, I can’t use the long formula directly as REFD, because it’s simply too long, hence why I need to make use of the derived variable.
Many thanks for any suggestions.
Best regards,
Marcell
TVAR HEIGHT 6000[mm] $Main cross section dimensions
TVAR BTOP 7600[mm]
TVAR BBOT 4500[mm]
TVAR TTOP 30[mm]
TVAR TBOT 40[mm]
TVAR TW 20[mm]
TVAR INCW '=ARC(ATN((#BTOP-#BBOT)/2/#HEIGHT))'
it is not allowed to use TVAR variables which are defined in SOFiMSHC record GAVX for generation of a new TVAR using a formula.
E.g. TVAR A and TVAR B and then TVAR C ‘=#A+#B’ is not possible in AQUA
You can use a STO variable in AQUA:
e.g. TVAR A and TVAR B and then sto#C ‘=#A+#B’
With kind regards
Sabine
Small example (version 2020):
+PROG AQUA urs:1
HEAD
UNIT 5
NORM ‘EN’ ‘1992-2004’ COUN 0 CAT ‘AN’ SNOW ‘1’ UNIT 5
CONC 1 C ‘25’ TYPR B TITL “=C 25/30 (EN 1992)”
STEE 2 B ‘500B’ TMAX 32 TITL “=B 500 B (EN 1992)”
!tvar ‘C’ val ‘=#A+#B’ ! interpolation not correct
sto#C ‘=#A+#B’
LAY 1 TYPE MIN MRF 2
LAY 2 TYPE MIN MRF 2
LAY 3 TYPE MIN MRF 2
LAY 4 TYPE MIN MRF 2
POLY TYPE O MNO 1
VERT ‘0100’ Y -250 Z 0 EXP 1
VERT ‘0101’ Y 250 Z 0 EXP 1
VERT ‘0102’ Y 250 Z #C EXP 1
VERT ‘0103’ Y -250 Z #C EXP 1
VERT ‘0100’ Y -250 Z 0 EXP 1
CUT ‘ZS’ ZB ‘S’ NS 0 MS 0 MNO 1 MRF 2 LAY 1 TYPE WEB INCL 90
END
+PROG SOFIMSHC urs:2
HEAD
UNIT 5
SYST SLAB GDIV 10000 GDIR NEGZ
CTRL TOPO 0
CTRL TOLG VAL 0.010000[m]
CTRL MESH 1
CTRL EDRL 1
CTRL HMIN VAL 1.250000[m]
CTRL FINE VAL -0.325000
CTRL PROG VAL 1.238000
CTRL EFAC VAL 1.398600
GAX ‘A1’ TYPC AXIS TITL “A1”
GAXA S 0.0 X 0.0 0.0 SX 1.00000 0.0
GAXA L 10.0000 R 0.0 RA 0.0 RE 0.0
GAXV ‘A1’ NAME ‘A’ S 0.0 V 500.000[mm] DV 0.05000 TYPE POLY
GAXV ‘A1’ NAME ‘A’ S 10.0000 V 1000.000[mm] DV 0.0 TYPE POLY
GAXV ‘A1’ NAME ‘B’ S 0.0 V 500.000[mm] DV 0.05000 TYPE POLY
GAXV ‘A1’ NAME ‘B’ S 10.0000 V 1000.000[mm] DV 0.0 TYPE POLY
GAXP ‘A1’ IDS 0 S 10.0000 TYPE ‘S’ IDP ‘P2’
GAXP ‘A1’ IDS 0 S 0.0 TYPE ‘S’ IDP ‘P1’
SPT 1 X 10.0000 0.0 0.0 NX 0 0 -1 SX 1 0 0
SPT 2 X 0.0 0.0 0.0 NX 0 0 -1 SX 1 0 0
SLN 1 NPA 2 1 REF ‘A1’ GRP 1 STYP ‘B’ SNO 1 DRX 0 0 -1
END
following definition in SOFiMSHC GAXV is not possible: V ‘=#A+#B’
When defining the variable C in GAXV, this is possible:
+PROG AQUA urs:1
HEAD
UNIT 5
NORM ‘EN’ ‘1992-2004’ COUN 0 CAT ‘AN’ SNOW ‘1’ UNIT 5
CONC 1 C ‘25’ TYPR B TITL “=C 25/30 (EN 1992)”
STEE 2 B ‘500B’ TMAX 32 TITL “=B 500 B (EN 1992)”
LAY 1 TYPE MIN MRF 2
LAY 2 TYPE MIN MRF 2
LAY 3 TYPE MIN MRF 2
LAY 4 TYPE MIN MRF 2
POLY TYPE O MNO 1
VERT ‘0100’ Y -250 Z 0 EXP 1
VERT ‘0101’ Y 250 Z 0 EXP 1
VERT ‘0102’ Y 250 Z #C EXP 1
VERT ‘0103’ Y -250 Z #C EXP 1
VERT ‘0100’ Y -250 Z 0 EXP 1
CUT ‘ZS’ ZB ‘S’ NS 0 MS 0 MNO 1 MRF 2 LAY 1 TYPE WEB INCL 90
END
+PROG SOFIMSHC urs:2
HEAD
UNIT 5
SYST SLAB GDIV 10000 GDIR NEGZ
CTRL TOPO 0
CTRL TOLG VAL 0.010000[m]
CTRL MESH 1
CTRL EDRL 1
CTRL HMIN VAL 1.250000[m]
CTRL FINE VAL -0.325000
CTRL PROG VAL 1.238000
CTRL EFAC VAL 1.398600
GAX ‘A1’ TYPC AXIS TITL “A1”
GAXA S 0.0 X 0.0 0.0 SX 1.00000 0.0
GAXA L 10.0000 R 0.0 RA 0.0 RE 0.0
GAXV ‘A1’ NAME ‘C’ S 0.0 V ‘=500.+500.’ DV 0.05000 TYPE POLY
GAXV ‘A1’ NAME ‘C’ S 10.0000 V ‘=1000.+1000.’ DV 0.0 TYPE POLY
GAXP ‘A1’ IDS 0 S 10.0000 TYPE ‘S’ IDP ‘P2’
GAXP ‘A1’ IDS 0 S 0.0 TYPE ‘S’ IDP ‘P1’
SPT 1 X 10.0000 0.0 0.0 NX 0 0 -1 SX 1 0 0
SPT 2 X 0.0 0.0 0.0 NX 0 0 -1 SX 1 0 0
SLN 1 NPA 2 1 REF ‘A1’ GRP 1 STYP ‘B’ SNO 1 DRX 0 0 -1
END