The questions are related to is the Sofistik built-in example attached as below
csm31_design_aashto_suma.dat (58.9 KB), which is located in
C:\Program Files\SOFiSTiK\20XX\SOFiSTiK 20XX\csm.dat\english\more\
Below is the fragment of the whole code
+PROG AQB urs:27
HEAD Manual check - Interpretation
ECHO SECT,LC,COMB,FORC,REIN,STRE NO
ECHO TABS 2 $ 1+2 = print all tendons separately
CTRL SVRF 1.00000 $ take into account reinforcement for C+S
CTRL WARN 2063 $ to avoid warning 2063 (COMB MAXD D for design works ! )
$
$ loadcases to be used:
#include "$(project)_csmlf.dat" $ AQB LC-loadcase definition of construction stages 'GPC'
$ other variable actions:
LC TYPE 'LB ' CST #cslast $ 'Total life load LB'
LC TYPE 'T ' CST #cslast $ 'Temperature'
LC TYPE 'W ' CST #cslast $ 'wind'
LC TYPE 'ZF ' CST #cslast $ 'possible settlement SLS'
LC TYPE 'SF ' CST #cslast $ 'probable settlement ULS'
$ beams to be used:
BEAM 1105 X 0.000 CS auto
$ BEAM 2116 X 0.000 CS auto
$ Combinations:
$ *************************************************************
$ stresses in single loadcases: See first CSM run - check print !!!!!!!!!!!!
$ ==================================== linear stresses STRE ==============================================
COMB SUM LC1 D TITL 'sum_D'
COMB SUM LC1 PS TITL 'sum_PS'
COMB SUM LC1 CR TITL 'sum_CR'
COMB MAX MY LC1 'LB' TITL 'max MY LB '
COMB MIN MY LC1 'LB' TITL 'min MY LB '
COMB MAX MY LC1 'T' TITL 'max MY T '
COMB MAX MY LC1 'ZF' TITL 'max MY ZF '
COMB MAX MY LC1 'SF' TITL 'max MY SF '
COMB MAX MY LC1 'W' TITL 'max MY W '
$ ==================================== SLS design : linear stress (uncracked) on given force (N,MY)
COMB MAX MY LC1 D 1.00 LC2 PS 1.00 LC3 CR 1.00 LC4 LB 1.00 LC5 T 1.00 LC6 ZF 1.00 LCST 8101 TITL 'SLS+ D+P+C+LB+T+ZF STRE'
COMB MIN MY LC1 D 1.00 LC2 PS 1.00 LC3 CR 1.00 LC4 LB 1.00 LC5 T 1.00 LC6 ZF 1.00 LCST 8102 TITL 'SLS- D+P+C+LB+T+ZF STRE'
STRE K $ prints linear stresses of previous combinations
Here are my questions
Q1: As for
COMB SUM LC1 D TITL 'sum_D'
COMB SUM LC1 PS TITL 'sum_PS'
COMB SUM LC1 CR TITL 'sum_CR'
Does it mean adding D, PS and CR that occurred in CSM into LC1?
Q2: If the answer to Q1 is yes, then according to CSM
+PROG CSM URS:87
HEAD Construction sequence
CTRL DL AUTO $ Dead load of gamma automatically
CTRL STOR 1 $ create 7000 AQB result loadcases = including tendon creep and shrinkage losses
$ CTRL GPCS 1 $ GPC-separated = more accurate in case of removing supports
$
CS 10 TYPE D_1 TITL 'D_1'
CS 11 TYPE PS TITL 'Prestress PS '
CS 15 TYPE CR_1 TITL 'Creep till superimpose D_2 ' T 40
CS 18 TYPE D_1 TITL 'additional D_1' $ to make SUMA more clear
CS 20 TYPE D_2 TITL 'D_2, Asphalt, capping '
CS 25 TYPE CR_1 TITL 'Creep till traffic opening ' T 40
CS 34 TYPE ZC TITL '20 % UDL'
CS 35 TYPE CR_2 TITL 'C+S t-infinite ' T 365*100 NCRE 2
Since only “D_1” and “D_2” are applied in CSM, how come the “D” instead of “D_1” and “D_2” was added into LC1 in Q1?
Q3: As for this command, Does it mean getting mx MY from ‘LB’, then defining it as LC1? If so, the LC1 will replace the previous LC1 (=D+PS+CR)?
COMB MAX MY LC1 'LB' TITL 'max MY LB '