Hoja3carga muerta (CM) Peso propio :140kg/mPiso terminado :40kg/mtabiqueria :40kg/mCM =220kg/mcarga viva (CV)s/c =80kg/mVIGA (eje D' )LUZ:7.574m.carga ultima: Cu= 1.4CM + 1.7CVt =0.54m.b: 0.3 - 0.5 m.Cu =444kg/m=0.44Tn/musar:0.55m.CALCULO Y DISEO DE LOSA ALIGERADAviga continua: h/14Concreto210KG/CM2t =0.47m.b: 0.3 - 0.5 m.Acero4200KG/CM2usar:0.5m.CALCULO DE LOSA ALIGERADAviga simplemente apoyada: h/12luz:4.65m.t =0.39m.b: 0.3 - 0.5 m.ESPESOR DE LOSA:usar:0.4m.t =luz/25luz=6.59m.t =0.26usar t =25 cmCALCULO LOSA ALIGERADA EN DOS DIRECCIONESPara luz libre entre 6.5 y 7.5m, h = 25cm. (RNE)luz: 7.338 m.CALCULO LOSA MACIZAESPESOR DE LOSA:t =luz/20luz=4.025m.t =0.20usar t =25 cmBARRAS DE ACEROLong:9.00(m.)[ASTM 615]fy =4,200fy:4,200.00(kg/cm2)GRADO 60f'c =210para losa h=25cm. , f'c=210 kg/cm2, fy=4200 kg/cm2Ab (cm2)
Luis Fernando Malca Ibaez: Luis Fernando Malca Ibaez:el numero significa el numero de octavos de cada barraPERIMETRO (cm)PESO (kg/m)VARILLAAs (cm2)Md (-) (ton-m)Md (+) (ton-m)3/8"0.71#33.000.5613/8"0.710.570.591/2"1.29#44.001.0011/2"1.291.001.055/8"2.00#55.001.5523/8"1.421.091.163/4"2.84#66.002.2313/8"+11/2"2.001.491.627/8"3.87#77.0021/2"2.581.852.071"5.10#88.004.003.66.598.44Cu =2,664.00Ln(-)5.3755.76256.51256.875Ln(+)5.3756.156.875Coef.1/161/101/111/111/101/161/141/161/14Mu (kg.m)4,8108,8468,04210,27211,2997,8705,4976,2728,994As* (cm2)2.434.474.065.195.713.972.783.174.54Barras