ACT G and P are defined in SOFILOAD, ACT Q is defined in ELLA
I want to get results from 1.2G+1.0P+1.4Q
But only 1.2G+1.0P is calculated as shown below in report:
Combination rule Number 1
Superposition according to explicitly defined formula
1.20G+1.00P
but the value are not correct.
E.g. the max positive moment on the transverse beam of an arch bridge,
The value due to G is about 2793 + 849 kNm in Sofistik, and 2740 + 799 kNm in Midas Civil
The value due to P is about 0 kNm in Sofistik, and 0 kNm in Midas Civil
The value due to Q (moving load) is about 1762 kNm in Sofistik, and 1841 kNm in Midas Civil
The Maxima report that the max positive moment due to 1.2G+1.0P+1.4Q = 11915 kNm
The max positive moment in Midas Civil is 6824 kNm
The max positive moment by hand cacularion using 1.2 x (2793 + 849) + 1.0 x 0 + 1.4 x 1762 = 6837kNm
The value from hand calculation is similar to that from Midas Civil.
Why the value from Maxima (11915 kNm) is so big?
Probably your Q-combination is wrong: your chosen ACT-SUP-type is COND. ALL of your relevant Q-loadcases were add. It seems, you need the SUP-type EXCL (only the one and only max/min-Q-loadcase is decisive). (Or ACT L instead ACT C? Maybe, in L is SUP EXCL standard.)
And sfr wrote: “Check the maxima report …”. In the extended version you can see for every element all involved loadcases.
Since Q is “cond”, Maxima get 117878.48 kNm by
1.2*(2748.81+844.05)+1.4*(1735.21[Max-N]+24.88[Min-N]+1760.13[Max-My]+224.72[Max-Vz]+1588.86[Min-Vz]) = 17878.48 kNm
I define
ACT
TYPE
GAMU
GAMF
SUP
VE
1
1
EXCL
in Ella to get 1.2*(2748.81+844.05)+1.4*1760.13[Max-My]=6775 kNm, which is close to that from Midas Civil.