Hey all, I am trying to analyze a basic reinforced concrete beam with Teddy to understand SOFiSTiK better.
In a first step I made a beam with a full concrete cross section and ran the analysis while at the same time doing the hand calculations to see if everything behaved as I expected, which it did.
In a second step I then tried adding reinforcement but i noticed the concrete stresses did not lower, so it seems the calculation does not take into account the reinforcement I placed.
In a next step I also want to place pretensioned reinforcement in the beam.
Can anyone help me what needs to be changed in the following Teddy script?
Teddy script
+prog aqua urs:30.1
head Materials
echo sect full
NORM ‘DIN’ ‘en199X-200X-BRIDGE’ CAT ‘B’
UNIT 5 $ units: sections in mm, geometry+loads in m
CONC 1 C 40 $ = C40/50
STEE 2 S 500 $ standard reinforcement steel 500
STEE 11 Y 1860A $ prestessing steel
$ fp0,1k = 1600 N/mm2
$ fpk = 1860 N/mm2
$ 0.8fpk = 0.801860 = 1488 N/mm2
$ 0.9fp0,1k = 0.901600 = 1440 N/mm2
$ sigp,max = min(1488,1440) = 1440 N/mm2 EN-1992-1-1 5.10.2.1(1) maximum stress
$ sigp,SLS = 0.65fpk = 0.651860 = 1209 N/mm2 EN-1992-1-1 7.2(5) on traffic opening permanent
$ sigp,rare= sigp,max
sect 1 mno 1 mrf 2
$section
let#h 1000 $[mm] height beam
let#b 500 $[mm] width beam
let#dek 50 $[mm] concrete cover
poly opz mno 1
vert 0 0 0
1 #b/2 0
2 #b/2 #h
Spt no Y Z mno
“top” 0 0 1
“bot” 0 #h 1
$reinforcement
let#ytop #b/2-#dek $ [mm] y-value of first bar top
let#ybot #b/2-#dek $ [mm] y-value of first bar bot
let#ztop #dek $ [mm] z-value of first bar top
let#zbot #h-#dek $ " of first bar bot
LAY 1 ‘BOT’ TYPE MIN MRF 2
LAY 2 ‘TOP’ TYPE MIN MRF 2
RF Y #ytop,-#ytop,#ytop/2,-#ytop/2 Z #ztop LAY 1 D 32
RF Y #ybot,-#ybot,#ytop/2,-#ytop/2 Z #zbot LAY 2 D 32
end
+prog sofimshc urs:30.2
head make beam
syst 3d gdiv 10000
ctrl opt mesh 1
ctrl opt hmin 0.5
sto#L 10
spt 1 x 0 y 0 z 0 fix ppmm
spt 2 x #L y 0 z 0 fix ppmm
sln 1 npa 1 npe 2 sno 1
end
+prog sofiload urs:30.3
act type G gamu 1.35
act type Q gamu 1.5
lc no 1 type G FACD 1.0
LC no 2 type Q
let#varload 100
line auto type pg p1 #varload x1 0 p2 #varload x2 #L
end
+prog Ase urs:30.4
head
lc no all
end
+prog maxima urs:30.5
head combinations
comb 1 desi
act G
act Q
end
+prog maxima urs:30.6
head
supp etyp beam type my lc 100 extr=mami comb 1
end
+prog aqb urs:30.7
echo full
head
lc 100
lc 101
stre k
end
