Flex Ural Section
11
Input data Material properties Yeild strength of rebars: Unit bar number 15 400 MPa Es= 200000 MPa Concrete strength 30 MPa Ec= 24647.52 MPa (8-7) fr= 3.29 (8-3) a1 = 0.805 (10-1) b1= 0.895 (10-2) 15.6975 340 0.0413214 Some differences from A23.3-94 parameter A23.3-94 A23.3-04 fic 0.6 0.65 Fr bring same value Vr,max CSA formular, clause or page 0.6lÖfc ’ flÖfc ’ 0.6lÖfc ’ α 1 φ c f c ' = φ s f y = α 1 β 1 φ c f c ' φ s f y =
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Transcript of Flex Ural Section
Input data
Material propertiesYeild strength of rebars: Unit
bar number 15 400 MPaEs= 200000 MPa
Concrete strength 30 MPaEc= 24647.52 MPa (8-7)
fr= 3.29 (8-3)a1 = 0.805 (10-1)b1= 0.895 (10-2)
15.6975
340
0.04132136
Some differences from A23.3-94parameter A23.3-94 A23.3-04fic 0.6 0.65
Fr bring same valueVr,max
CSA formular, clause or page
0.6lÖfc’
flÖfc’ 0.6lÖfc
’
α 1φc f c'=
φs f y=α1 β1 φc f c
'
φs f y=
Unitlength mmForce KNLoad KPa
Slab Infor. Rebar arrange
Depth Mf Rebar distance Strength As Asmin d a c Mrmm KNm mm mm Mpa (mm2/m)(mm2/m)mm mm mm c/d<=(c/d)max KNm
203.2 50.28 50 15 177.8 400 1124.86 406.40 145.7 24.36 27.22 OK 51.1304.8 98.73 50 20 203.2 400 1476.38 609.60 244.8 31.98 35.73 OK 114.9304.8 105 50 20 203.2 400 1476.38 609.60 244.8 31.98 35.73 OK 114.9
254 135 50 25 203.2 400 2460.63 508.00 191.5 53.30 59.55 OK 137.9
203.2 45 50 15 203.2 400 984.25 406.40 145.7 21.32 23.82 OK 45.2304.8 24.44 50 15 355.6 400 562.43 609.60 247.3 12.18 13.61 OK 46.1304.8 36.56 50 15 355.6 400 562.43 609.60 247.3 12.18 13.61 OK 46.1
254 27.15 50 15 355.6 400 562.43 508.00 196.5 12.18 13.61 OK 36.4
203.2 15.52 50 15 406.4 400 492.13 406.40 145.7 10.66 11.91 OK 23.5304.8 98.73 50 20 203.2 400 1476.38 609.60 244.8 31.98 35.73 OK 114.9
254 60 50 15 203.2 400 984.25 508.00 196.5 21.32 23.82 OK 62.2254 135 50 25 203.2 400 2460.63 508.00 191.5 53.30 59.55 OK 137.9
203.2 13.2 50 15 406.4 400 492.13 406.40 145.7 10.66 11.91 OK 23.5203.2 31.5 50 15 254 400 787.40 406.40 145.7 17.05 19.06 OK 36.7
Clearance to rebar edge
Yielding condition
254 51 50 15 203.2 400 984.25 508.00 196.5 21.32 23.82 OK 62.2254 27.15 50 15 355.6 400 562.43 508.00 196.5 12.18 13.61 OK 36.4
OK stem
9f
OK toeOK heelOK Key
OK stem
9f no surcharge
OK toeOK heelOK Key
OK stem
6f
OK toeOK heelOK Key
OK stem
6f no surcharge
OK toe
Strength condition
OK heel6f no surchargeOK Key
Unitlength mmForce KNLoad KPa
INPUT
Width Depth Mf Rebarmm mm KNm mm Mpa mm
200 1300 85 15 75 400 1217.5200 1300 136 15 75 400 1217.5
Winpost 180 KNm
Winpost 1380 KNm
Steel Strength
Effective depth d
Clearance to rebar
edge
mm mm c/d<=(c/d)ma mm2 mm222 25 OK 207.25 712.0436 40 OK 333.49 712.04
Equivalent compression
depth acompression
depth cYielding
conditionAs
required
As min (10-4)
Unitlength mmForce KNLoad KPa
INPUT
Mfmm mm mm mm KNm mm
1200 1000 75 400 1500 30 90
Flange width
Section depth
Flange thickness
Web thickness
Longitudinal
RebarClearance to rebar edge
Design as section BfxH
Mpa mm2 mm mm mm c/d<=(c/d)ma400 1095.45 895 94 105 OK
Steel Strength
As min required
Effective depth d
Equivalent compression depth a
compression depth c
Yielding condition
Design as section BfxH Design as T section in case Neutral axis lie across web of section
mm2 mm2 Mw(KNm) mm mm5202.24 T section 2770 692 133 149
As required
Check T section
behaviour
Rebar area correspond to flange Asf
Moment resisted by BwxH
Equivalent compression depth a
compression depth c
Design as T section in case Neutral axis lie across web of section
As requiredc/d<=(c/d) mm2 mm2OK 2458.04 5228.19
Yielding condition
Total As required
