B2-L1Text in Blue to be entered by userDesign ForcesP* ( MN)M* (
MNm)96.442.09Design Parameters70.281.51LengthLengthlcFcrfc Pnfc
=0.7569.181.03330000.101000122762Es
=205000MPa74.541.20660000.19988121347wc
=2500kg/m395.331.54990000.29969119024Fyr
=460MPa63.460.8712120000.38943115847Fy
=355MPa55.900.7815150000.48911111887fc'
=70MPa26.461.5718180000.58873107230Ec
=37572MPa92.343.2321210000.67830101975K
=149.711.3024240000.7778496231Le
=12m45.171.3927270000.8673490112Cover
=50mm36.571.4630300000.9668283731Column
Properties43.031.1533330001.0662977204Outer diameter
=1524mm50.021.3536360001.1557570637Plate thickness
=35mm55.471.6239390001.2552264131Inner diameter
=1454mm63.061.8942420001.3547157776Area of Concrete Ac
=1660422.82mm2Concrete filled pipes /tubesConc. encased
shapesIrregular shapes45450001.4442151650Area of steel section As
=163724.101141832mm2Coefficients48480001.5437245720Rebar Diameter
=32mmc1=110.70.8551510001.6333040499Rebar Number
=20c2=0.850.850.60.72554540001.7329436124Rebar Area Asr
=16085.0mm2c3=0.40.40.20.357570001.8326432422Rebar Percentage
=0.97%60600001.922382926163630002.0221626540Design
Formulae66660002.1119724182Asr / As
=0.098lc=0.38469690002.2118022125Ac / As =10.14Fyr
=943.43MPa72720002.3116520320Ec = 0.043wc1.5 *
(fc')0.5=37572.00MPaPn=154462.88KN75750002.4015318727Em=357415.94MPafc
Pn=131293.45KN78780002.5014117314Fmy=1003.62MPa81810002.5913116055I=45399588108.9473mm4Z
=77613527mm384840002.6912214929A=163724.101141832mm2cr
=356mm87870002.7911313917Radius of Giration r =526.59mmMn
=29555.49kNm90900002.8810613005fc
Mn=26599.94kNm93930002.98991217996960003.08931143099990003.178810748Calculation
of points on curve for given length:Pn (MNm)Pn
(MNm)1021020003.2782101250.00131.291051050003.36789554fc
Pn=131.29MN2.28121.291081080003.46749031fc
Mn=26.60MNm4.56111.291111110003.567085490.2 fc
Pn=26.26MN6.84101.291141140003.656681050.9 fc
Mn=23.94MNm9.1291.2911.4081.29Salient Points on the
Curve13.6871.29Mn015.9561.290.9 fc Mn23.9418.2351.29fc
Mn26.6020.5141.29Pn131.2922.7931.290.2 fc Pn26.2624.4421.29fc
Pn026.600.00
&L&"Arial,Bold"&11U-BORA Towers&RDesigned by :
AK15th July 2006&L&Z&F&D&T&R&A
B2-L1
Effective Length in metersCapacity in KNBuckling Curve
L1-L15
Pn-Mn Interaction curveDesign ForcesMn (MNm)Pn (MN)Pn-Mn
Interaction Curve
L15-L27Text in Blue to be entered by userDesign ForcesP* ( MN)M*
( MNm)48.451.21Design Parameters65.933.63LengthLengthlcFcrfc Pnfc
=0.7565.472.97330000.1189591122Es
=205000MPa67.193.05660000.2388089644wc
=2500kg/m350.151.54990000.3485787234Fyr
=460MPa58.972.2512120000.4682483969Fy
=355MPa53.531.9015150000.5778579949fc'
=70MPa55.642.9618180000.6873975297Ec
=37572MPa51.073.3521210000.8068970147K
=144.580.6524240000.9163564640Le
=4.2m40.970.7227270001.0357958920Cover
=50mm33.980.4830300001.1452253124Column
Properties39.650.9633330001.2646547379Outer diameter
=1270mm45.731.0836360001.3741041797Plate thickness
=35mm51.271.3239390001.4835836473Inner diameter
=1200mm57.282.1942420001.6030931483Area of Concrete Ac
=1130973.36mm2Concrete filled pipes /tubesConc. encased
shapesIrregular shapes45450001.7126927425Area of steel section As
=135795.342451419mm2Coefficients48480001.8323724104Rebar Diameter
=32mmc1=110.70.8551510001.9421021352Rebar Number
=18c2=0.850.850.60.72554540002.0518719045Rebar Area Asr
=14476.5mm2c3=0.40.40.20.357570002.1716817093Rebar Percentage
=1.28%60600002.281511542763630002.4013713992Design
Formulae66660002.5112512749Asr / As
=0.107lc=0.16069690002.6211511665Ac / As =8.33Fyr
=890.03MPa72720002.7410510713Ec = 0.043wc1.5 *
(fc')0.5=37572.00MPaPn=120861.44KN75750002.85979873Em=330167.57MPafc
Pn=102732.23KN78780002.97909128Fmy=899.58MPa81810003.08838465I=25910600060.621mm4Z
=53397167mm384840003.20777871A=135795.342451419mm2cr
=292.5mm87870003.31727337Radius of Giration r =436.81mmMn
=20476.50kNm90900003.42676856fc
Mn=18428.85kNm93930003.5463642196960003.6559602699990003.77565666Calculation
of points on curve for given length:Pn (MNm)Pn
(MNm)1021020003.885253380.00102.731051050003.99495037fc
Pn=102.73MN2.0292.731081080004.11474761fc
Mn=18.43MNm4.0482.731111110004.224445070.2 fc
Pn=20.55MN6.0572.731141140004.344242730.9 fc
Mn=16.59MNm8.0762.7310.0952.73Salient Points on the
Curve12.1142.73Mn014.1332.730.9 fc Mn16.5916.1422.73fc
Mn18.4317.2912.73Pn102.7318.182.730.2 fc Pn20.5518.430.00fc Pn0
&L&"Arial,Bold"&11U-BORA Towers&RDesigned by :
AK15th July 2006&L&Z&F&D&T&R&A
L15-L27
Effective Length in metersCapacity in KNBuckling Curve
L27-L40
Pn-Mn Interaction curveDesign ForcesMn (MNm)Pn (MN)Pn-Mn
Interaction Curve
L41-L52Text in Blue to be entered by userDesign ForcesP* ( MN)M*
( MNm)42.831.04Design Parameters48.951.78LengthLengthlcFcrfc Pnfc
=0.7549.231.57330000.1381068966Es
=205000MPa50.161.46660000.2779267415wc
=2500kg/m344.110.95990000.4076364907Fyr
=460MPa42.922.1012120000.5472361552Fy
=355MPa40.863.0215150000.6767657492fc'
=70MPa37.683.1818180000.8162152891Ec
=37572MPa25.821.8721210000.9456347927K
=130.681.4624240001.0850342775Le
=4.2m28.871.5827270001.2144237602Cover
=50mm26.711.3130300001.3538332557Column
Properties29.681.7133330001.4832627765Outer diameter
=1067mm32.672.1736360001.6227523363Plate thickness
=35mm37.432.5939390001.7523419907Inner diameter
=997mm40.311.7142420001.8820217165Area of Concrete Ac
=780692.84mm2Concrete filled pipes /tubesConc. encased
shapesIrregular shapes45450002.0217614952Area of steel section As
=113474.326647663mm2Coefficients48480002.1515413142Rebar Diameter
=32mmc1=110.70.8551510002.2913711641Rebar Number
=16c2=0.850.850.60.72554540002.4212210384Rebar Area Asr
=12868.0mm2c3=0.40.40.20.357570002.561109319Rebar Percentage
=1.65%60600002.6999841163630002.83907629Design
Formulae66660002.96826951Asr / As =0.113lc=0.18869690003.10756360Ac
/ As =6.88Fyr =804.47MPa72720003.23695841Ec = 0.043wc1.5 *
(fc')0.5=37572.00MPaPn=91287.17KN75750003.36635383Em=308396.75MPafc
Pn=77594.09KN78780003.50584977Fmy=816.52MPa81810003.63544615I=15123985914.218mm4Z
=37290132mm384840003.77504291A=113474.326647663mm2cr
=241.75mm87870003.90474000Radius of Giration r =365.08mmMn
=14389.29kNm90900004.04443738fc
Mn=12950.36kNm93930004.1741350196960004.3139328599990004.44363089Calculation
of points on curve for given length:Pn (MNm)Pn
(MNm)1021020004.583429100.0077.591051050004.71322746fc
Pn=77.59MN1.8867.591081080004.85312596fc
Mn=12.95MNm3.7657.591111110004.982924570.2 fc
Pn=15.52MN5.6347.591141140005.112723300.9 fc
Mn=11.66MNm7.5137.599.3927.59Salient Points on the
Curve11.2717.59Mn012.327.590.9 fc Mn11.6612.950.00fc
Mn12.95Pn77.590.2 fc Pn15.52fc Pn0
&L&"Arial,Bold"&11U-BORA Towers&RDesigned by :
AK15th July 2006&L&Z&F&D&T&R&A
L41-L52
Effective Length in metersCapacity in KNBuckling Curve
Pn-Mn Interaction curveDesign ForcesMn (MNm)Pn (MN)Pn-Mn
Interaction Curve
Text in Blue to be entered by userDesign ForcesP* ( MN)M* (
MNm)31.352.09Design Parameters32.822.71LengthLengthlcFcrfc Pnfc
=0.7532.622.50330000.1674554032Es
=205000MPa33.622.17660000.3172352407wc
=2500kg/m331.582.51990000.4768749808Fyr
=460MPa28.734.5112120000.6264046383Fy
=355MPa27.165.7115150000.7858442324fc'
=70MPa24.525.7518180000.9452237843Ec
=37572MPa20.392.7021210001.0945733154K
=124.733.2224240001.2539328461Le
=4.2m23.563.3427270001.4033023940Cover
=50mm19.432.3930300001.5627219691Column
Properties20.742.9833330001.7222516274Outer diameter
=914mm23.793.5036360001.8718913675Plate thickness
=35mm26.663.8639390002.0316111652Inner diameter
=844mm28.403.0042420002.1813910047Area of Concrete Ac
=559467.39mm2Concrete filled pipes /tubesConc. encased
shapesIrregular shapes45450002.341218752Area of steel section As
=96651.09798769mm2Coefficients48480002.491067692Rebar Diameter
=32mmc1=110.70.8551510002.65946814Rebar Number
=14c2=0.850.850.60.72554540002.81846078Rebar Area Asr
=11259.5mm2c3=0.40.40.20.357570002.96755455Rebar Percentage
=2.01%60600003.1268492363630003.27624465Design
Formulae66660003.43564068Asr / As =0.116lc=0.21869690003.59513722Ac
/ As =5.79Fyr =738.14MPa72720003.74473419Ec = 0.043wc1.5 *
(fc')0.5=37572.00MPaPn=71341.74KN75750003.90433151Em=291994.60MPafc
Pn=60640.48KN78780004.05402913Fmy=753.01MPa81810004.21372701I=9349374824.41771mm4Z
=27056727mm384840004.37352512A=96651.09798769mm2cr
=203.5mm87870004.52322341Radius of Giration r =311.02mmMn
=10480.45kNm90900004.68302188fc
Mn=9432.40kNm93930004.8328204996960004.9927192399990005.15251808Calculation
of points on curve for given length:Pn (MNm)Pn
(MNm)1021020005.302317030.0060.641051050005.46221607fc
Pn=60.64MN1.7550.641081080005.61211519fc
Mn=9.43MNm3.5040.641111110005.772014380.2 fc
Pn=12.13MN5.2530.641141140005.921913640.9 fc
Mn=8.49MNm7.0020.648.6010.64Salient Points on the
Curve9.380.64Mn09.430.000.9 fc Mn8.49fc Mn9.43Pn60.640.2 fc
Pn12.13fc Pn0
&L&"Arial,Bold"&11U-BORA Towers&RDesigned by :
AK15th July 2006&L&Z&F&D&T&R&A
Effective Length in metersCapacity in KNBuckling Curve
Pn-Mn Interaction curveDesign ForcesMn (MNm)Pn (MN)Pn-Mn
Interaction Curve
Text in Blue to be entered by userDesign ForcesP* ( MN)M* (
MNm)15.612.51Design Parameters17.752.75LengthLengthlcFcrfc Pnfc
=0.7517.222.70330000.1573052944Es
=205000MPa18.162.84660000.3170951384wc
=2500kg/m314.673.15990000.4667448886Fyr
=460MPa13.685.6712120000.6262945591Fy
=355MPa12.986.4315150000.7757541679fc'
=70MPa12.036.8018180000.9351537350Ec
=37572MPa9.992.4521210001.0845332811K
=114.492.8224240001.2339028254Le
=4.2m13.583.4227270001.3932923850Cover
=50mm9.992.4530300001.5427219691Column
Properties10.442.2533330001.7022516274Outer diameter
=914mm12.882.7536360001.8518913675Plate thickness
=35mm14.522.8839390002.0116111652Inner diameter
=844mm15.002.4342420002.1613910047Area of Concrete Ac
=559467.39mm2Concrete filled pipes /tubesConc. encased
shapesIrregular shapes45450002.311218752Area of steel section As
=96651.09798769mm2Coefficients48480002.471067692Rebar Diameter
=32mmc1=110.70.8551510002.62946814Rebar Number
=10c2=0.850.850.60.72554540002.78846078Rebar Area Asr
=8042.5mm2c3=0.40.40.20.357570002.93755455Rebar Percentage
=1.44%60600003.0968492363630003.24624465Design
Formulae66660003.40564068Asr / As =0.083lc=0.21669690003.55513722Ac
/ As =5.79Fyr =723.42MPa72720003.70473419Ec = 0.043wc1.5 *
(fc')0.5=37572.00MPaPn=69919.49KN75750003.86433151Em=291994.60MPafc
Pn=59431.57KN78780004.01402913Fmy=737.69MPa81810004.17372701I=9349374824.41771mm4Z
=27056727mm384840004.32352512A=96651.09798769mm2cr
=203.5mm87870004.48322341Radius of Giration r =311.02mmMn
=10230.36kNm90900004.63302188fc
Mn=9207.32kNm93930004.7828204996960004.9427192399990005.09251808Calculation
of points on curve for given length:Pn (MNm)Pn
(MNm)1021020005.252317030.0059.431051050005.40221607fc
Pn=59.43MN1.7449.431081080005.56211519fc
Mn=9.21MNm3.4939.431111110005.712014380.2 fc
Pn=11.89MN5.2329.431141140005.861913640.9 fc
Mn=8.29MNm6.9719.439.210.00Salient Points on the CurveMn00.9 fc
Mn8.29fc Mn9.21Pn59.430.2 fc Pn11.89fc Pn0
&L&"Arial,Bold"&11U-BORA Towers&RDesigned by :
AK15th July 2006&L&Z&F&D&T&R&A
Effective Length in metersCapacity in KNBuckling Curve
Pn-Mn Interaction curveDesign ForcesMn (MNm)Pn (MN)Pn-Mn
Interaction Curve
