BEAM DESIGN (5)DESIGN OF 2ND FLOOR BEAMSMARK: RB1Project: 2 STOREY RESIDENTIAL BUILDINGLocation: POBLACION INITAO, MIS. OR.Owner: ARNEL S. PACANADESIGN DATAbLoadswtuwWTWLOADSDLFlooring=1.000.1023.60=2.362.50=5.90AT MIDSPANDFloor Fin=0.25=0.252.50=0.63Mu =38.58KN-mPartition=0.0=0.02.50=0.0Ceiling=0.24=0.242.50=0.60Beams=0.250.4023.60=2.361.00=2.36SECTION AT MIDSPANCHB Wall=2.602.15=5.591.00=5.5915.08AT SUPPORTbLLOccu=2.00=2.002.50=5.005.00Mu =42.65kN-mVu =78.65kNwu=29.61DColumn Width=0.25Span=4.00Clear span=3.75MATERIAL DATA+ Mu=26.02Concretef'c =20.70MPaSECTION AT SUPPORT- Mu=41.63w =23.60kN/m3Shear=55.51SteelFy =275.00MPaBEAM DATAWidthb =250mmEffective depthde =242mmDepthD =300mmSpan, C/CL =4,000mmMin Coverd' =40mmCol Dimensionc =250mmSTEEL REINFORCEMENTDESIGN FOR TENSIONSteel Ratiopmin =0.0050909091pmax =0.0279691948Main BarsAT SUPPORTAT MIDSPANTOPBOTTOMTOPBOTTOMSteel Ratio0.015800.006650.006650.01408Steel Area956.20mm2402.12mm2402.12mm2851.80mm2Main Bar Diameter16mm16mm16.00mm16mmRequired5pcs2pcs2pcs5pcsNo. of Layer2111No. of bar at 1st Layer4224No. of bar at 2nd Layer1001Moment Capacity43.46kN-m OK!43.46kN-m OK!StirrupsDiameter, d10mmSpacing, s1 @ 50, 5 @ 100, rest at 200 mm ocDETAILED COMPUTATIONDESIGN LOADAT MIDSPANMu =.90(0.85) f'c bd ( 1-0.59 )231.85 ( 1-0.59 )1 =1.5078714278p1 =0.11350159472 =0.1870438264p2 =0.0140792989Usep =0.0140792989As =851.80AT SUPPORT ( TOP )Mu =.90 (0.85)f'c bd ( 1-0.59 )231.85( 1-0.59 )1 =1.4849470496p1 =0.11177601432 =0.2099682047p2 =0.0158048794As =956.20clear cover =58d =16n1=4n2 =1effective depth =237.00width check =134134min bar spacing =4141allowed bar at top =44no of layer =2111no bars at first layer =4224no bars at 2nd layer =1001DESIGN FOR TENSIONActual Capacityat SupportMu =.90*.85* f'c bd ( 1-0.59 )p=0.0169672515 =0.2254103455Mu =43.46at midspanMu =.90 f'c bd w( 1-0.59w )p=0.0169672515 =0.2254103455Mu =43.46CHECK FOR SHEARVu =68.50V s actual =1.13MPa