diseño de losa
TRANSCRIPT
![Page 1: Diseño de Losa](https://reader036.vdocuments.co/reader036/viewer/2022082407/5695d4711a28ab9b02a1744d/html5/thumbnails/1.jpg)
1. predimensionamientoespesor de la losa: LN/30 0.12333333 me= 0.17 m
2.metrados de cargas
2.1cargas muertas peso propio de (san bartolome)PPL= 280 Kg/m^2
piso terminado(SE CONCIDERA)PT= 100 Kg/m^2
PISO POR TABI (SE CONCIDERA)5 kg/m^2
total de carg WD= 385 Kg/m^2
2.2_CARGAS VIVAS TABLA_1 de la norma E.20aula Wl= 250 Kg/m^2
2.3_carga ultimaWn=1.4*WD+1.7*WL
Wn= 964 Kg/m^2
4) CARGA POR VIGUETAsabemos que por cada metr 2.5 vigueta
Uvigueta= 385.6 Kg/m por vigueta0.3856 Tn/m
0.4rrefuerzo de fluencia especificado del acero (fy)fy=resistencia en compresion del concreto (f'c)f'c= 210 kg/cm^2
MOMENTOS
TRAMOS A A-B B B-C Ccoeficiente 0.0416666667 0.07142857 0.11111111 0.07142857 0.04166667Mu 0.2281666667 0.39114286 0.60844444 0.39114286 0.22816667Mn=mu/0.9 0.2535185185 0.43460317 0.67604938 0.43460317 0.25351852
As=(Mu/o)/(fy*(d-a/2))
TRAMOS A A-B B B-C C
![Page 2: Diseño de Losa](https://reader036.vdocuments.co/reader036/viewer/2022082407/5695d4711a28ab9b02a1744d/html5/thumbnails/2.jpg)
e 17 17 17 17 17ree 2 2 2 2 2d 15 15 15 15 15b 10 40 10 40 10fy 4200 4200 4200 4200 4200f'c 210 210 210 210 210coeficiente 0.0416666667 0.07142857 0.11111111 0.07142857 0.04166667Mu 0.2281666667 0.39114286 0.60844444 0.39114286 0.22816667Mn=mu/0.9 0.2535185185 0.43460317 0.67604938 0.43460317 0.25351852a(asumiendo) 2 2 2 2 2As 0.4311539431 0.73912105 1.14974385 0.73912105 0.43115394a= 1.014479866 0.43477709 2.70527964 0.43477709 1.01447987As 0.4164945238 0.69999098 1.17945256 0.69999098 0.41649452Ab 0.71 0.71 1.29 0.71 0.71espaciamient17.047042864 40.5719516 10.9372776 40.5719516 17.0470429
0.1704704286 0.40571952 0.10937278 0.40571952 0.17047043
![Page 3: Diseño de Losa](https://reader036.vdocuments.co/reader036/viewer/2022082407/5695d4711a28ab9b02a1744d/html5/thumbnails/3.jpg)
TRAMOS A A-B B
![Page 4: Diseño de Losa](https://reader036.vdocuments.co/reader036/viewer/2022082407/5695d4711a28ab9b02a1744d/html5/thumbnails/4.jpg)
luz 4.5 4.5 4.5W 1.5 1.5 1.5e 12.5 12.5 12.5ree 2.5 2.5 2.5d 10 10 10b 100 100 100fy 4200 4200 4200f'c 210 210 210coeficiente 0.0625 0.1 0.04166667Mu 1.8984375 3.0375 1.265625Mn=mu/0.9 2.109375 3.375 1.40625a(asumiendo) 2 2 2As 5.58035714 8.92857143 3.7202381a= 1.31302521 2.10084034 0.87535014As 5.37521079 8.97887324 3.50146466Ab 0.71 0.71 1.29espaciamient 13.2087843 7.90745098 36.8417255
0.13208784 0.07907451 0.36841725