abq creep step CS 210
+++++ error no. 70011 in program INIT_LOCATIO
Negative sectional area in cross section 116~129 CS 0 = 100
Please check construction stage numbers and if the ducts for tendons are defined to large
“cross section 116~129” is in GRP 21-23. GRP 21-23 have composite sections, the steel parts of 21~23 are activated in CS 100, the concrete part of 21 is activated inCS 200, the concrete parts of 22 and 23 are activated in CS 600.
What I don’t understand is “Negative sectional area in cross section 116 CS 0 = 100”
If “Negative sectional area” occurs in “CS 0 = 100”, the analysis should stop at CS=100,
But why it stops at CS=210?
Well, it seems you have managed to create a stiffness matrix and are able to solve the G_1 loadcases, i.e. CS 100+200.
At the same time you have not managed to give a reasonable input for creep/shrinkage.
Maybe check the generated files xxx_csm.dat, if you can see anything. Or actually look at the cross sections.
The creep and shrinkage related data are in the auto-generated xxx_csm.dat by "+apply “$(NAME)_csm.dat” command.
$ ----------------------------------- Construction Stage 210 ----------------
+PROG AQB urs:csmaqb210
HEAD creep step CS 210 收缩徐变 #include AQB_CTRL
BEAM CS auto
LC 5100 TYPE "G_1 " CST 100 REF ‘PART’ SUP PERM
LC 5200 TYPE "G_1 " CST 200 REF ‘PART’ SUP PERM
COMB SUM LC1 G 1 LCST 6210 CST 210 TITL "210 收缩徐变 "
EIGE GRP 21 MNO 12 T 14 T0 28 TS 3 REL 0.70 RH 80.0 TEMP 20.0 $ Creep and shrinkage values are calculated new depending on deff
EIGE MNO 2 T 14 TEMP 20.0 $ activates tendon steel relaxation
EIGE MNO 3 T 14 TEMP 20.0 $ activates tendon steel relaxation
END
+PROG ASE urs:csmase210
HEAD Construction stage CS 210 收缩徐变
sto#cs_csm 210 $ use of variable #cs_csm in CTRL ASE TEXT see manual → CTRL CANT #include ASE_CTRL
SYST PLC 4200
CREP 1 T 14 BEAM AQB RCRE CSM $ all elements use the real creep values, separated for each load part, depending on the age of load
GRP 1 CS 210 T1 21.0 FACD 1 PHI 0.000 EPS 0.0000000 PHIF CSM MNO - $ first MNO 11
GRP 12 CS 210 T1 21.0 FACD 1 PHIF CSM
GRP 21 CS 210 T1 42.0 FACD 1 PHI CSM EPS -0.0000011 PHIF CSM MNO - $ first MNO 12
GRP 22 CS 210 T1 28.0 FACD 1 PHI 0.000 EPS 0.0000000 PHIF CSM MNO - $ first MNO 12
GRP 23 CS 210 T1 28.0 FACD 1 PHI 0.000 EPS 0.0000000 PHIF CSM MNO - $ first MNO 12
GRP 41 CS 210 T1 21.0 FACD 1 PHIF CSM
GRP 42 CS 210 T1 21.0 FACD 1 PHIF CSM
GRP 51 CS 210 T1 21.0 FACD 1 PHIF CSM
GRP 52 CS 210 T1 21.0 FACD 1 PHIF CSM
LC 4210 TYPE - TITL "收缩徐变 " $ dead load via GRP FACD
LCC 100 PLC YES $ already applied in PLC
LCC 101 PLC YES $ already applied in PLC
LCC 6210 PLC NEW $ AQB beam creep curvatures
END
The GRP 21~23 have composite sections, the steel parts of 21~23 are activated in CS 100, the concrete part of 21 is activated inCS 200, the concrete parts of 22 and 23 are activated in CS 600.
The GRP 21~23 also have post-tensioined tendons, which are activated in CS 620, 940 and 1020. E.g.
CS 620 620 0
PSIG KIND LERI ANWS TS
TEND NOT 11 TITL ‘N1-1’ NOG 1000 NTEN 1 LC 620 TYPE REFX FROM 0.0428571428571429 TO 38.9571428571428
If I do not put these tendon info in “Tendon.dat”, I can do analysis from CS 100 to CS 610. The next CS is 620, I have to activated tendons that belong to CS 620. But as long as I activate them, the analysis willl stop at CS 210, which is beyond my understanding.