ubc static design base shear

CALCULATION CALCULATION NO. SHEET No. PROJECT STATIC DESIGN BASE SHEAR AS PER UBC97 Seismic Zone = 2 Ductility Factor UBC97 Tbl 16-N R = 5.5 Importance factor UBC97 Tbl 16-K I = 1.00 Seismic coefficient UBC97 Tbl 16-Q = 0.18 Seismic coefficient UBC97 Tbl 16-R = 0.25 Total Seismic dead load W = 26379.5 kN Total height of the structure = 21 Numerical coefficient = 0.0488 Elastic fundamental period of vibration (method B) = 0.4039 Soil Profile = Excitation angle from x-axis = Elastic fundamental period of vibration (Method A) = 0.478723 1.3TA = 0.670212 > 0.4039 Therefore, T = 0.404 s < 0.70 Total Design Base Shear = 2968.725 The total design base shear need not exceed = 2158.323 The total design base shear shall not be less than = 522.3141 Therefore, V = 2158 kN The concentrated force at the top, which is in addition to Fn = 0 since, T < 0.70 0.25V = 539.5807 kN Therfore, Ft = 0 kN Hyder Consulting Middle East Ltd. & W.S. Atkins Overseas(JV) P.O.Box 1854 Doha, State of Qatar Tel. +974 4429 555 Fax +974 4428 874 Ca Cv hn Ct TB

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UBC Static Design Base Shear

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Static DBSHyder Consulting Middle East Ltd.& W.S. Atkins Overseas(JV)P.O.Box 1854Doha, State of QatarTel. +974 4429 555Fax +974 4428 874CALCULATIONCALCULATION NO.SHEET No.PROJECTSTATIC DESIGN BASE SHEAR AS PER UBC97Seismic Zone=2Ec=30Ductility FactorUBC97 Tbl 16-NR=5.5Ecq=39.2Importance factorUBC97 Tbl 16-KI=1.00=39200000000Seismic coefficientUBC97 Tbl 16-QCa=0.18Ieff=1500Seismic coefficientUBC97 Tbl 16-RCv=0.25Total Seismic dead loadW=26379.5kNTotal height of the structurehn=21Numerical coefficientCt=0.0488Elastic fundamental period of vibration (method B)TB=0.40390.0040890171Soil Profile=Excitation angle from x-axis=Elastic fundamental period of vibration (Method A)=0.47872299961.4TA=0.67021219941.3TA=0.62233989941.3TA=0.6702121994>0.4039Therefore, T=0.404 s< 0.70Total Design Base Shear=2968.7253820703The total design base shear need not exceed=2158.3227272727The total design base shear shall not be less than=522.3141Therefore, V=2158kNThe concentrated force at the top, which is in addition to Fn=0since, T < 0.700.25V=539.5806818182kNTherfore, Ft=0kN

DOCUMENT No. (Project/ Doc)SHEET No.1 OFPROJECT TITLE

calcs (2)Hyder Consulting Middle East Ltd.& W.S. Atkins Overseas(JV)P.O.Box 1854Doha, State of QatarTel. +974 4429 555Fax +974 4428 874CALCULATIONCALCULATION NO.SHEET No.PROJECTDesign Base Shear, V=2158kNConcentrated force at the top, Ft=0kNSTOREYSTOREYHT ABOVEWT PERWxhxFxSTOREYSTOREYVXLEVELHEIGHTGROUNDSTOREYSHEARMOMENT-507.2(m)(m)(kN)(kN-m)(kN)(kN)(kN-m)-530.4573213768.579138.5539.58539.61618.74-996.7163183768.567833462.501002.13006.24-1016.6453153768.556527.5385.411387.54162.48-1405.1843123768.545222308.331695.85087.48-1421.793393768.533916.5231.251927.15781.22-1732.632363768.522611154.172081.26243.72-1745.921333768.511305.577.082158.36474.97-1979.04B303768.500.002158.36474.97-1989.01-2144.43-2151.07-2228.78-2232.1SWxhx316554kN.mV - Ft2158kN24

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