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Uploaded by
Yoner Chávez
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MÉTODO DE PENDIENTE DEFLEXIÓN EN VIGAS
ANALISIS ESTRUCTURAL ( I )
Engineering
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MÉTODO DE PENDIENTE DEFLEXIÓN EN VIGAS
1.
METODO DE PENDIENTE
DEFLEXION ANALISIS ESTRUCTURAL ( I ) 82.00 N 764.00N/m 382.00N/m 382.00N/m 582.00N-m 1.46m 1.46m 1.46m 1.46m 1.94m 1.94m E= 1 E= 1 E= 1 I= 2.8I I= 2.6I I= 2.2I SOLUCION a) MOMENTO DE EMPORTRAMIENTO f) RESOLVIENDO : θA,θB,θc y θD MAB -356.24N-m NOTA: TABLAS DE MOMENTOS MBA 458.03N-m EMPOTRAMIENTO θA θB θC θD ∑ M MBC -67.86N-m 3.836 1.918 0 0 356.2N-m MCB 649.86N-m 1.918 10.959 3.562 0 -390.2N-m MCD -406.97N-m 0 3.562 9.712 1.294 -242.9N-m MDC 397.33N-m 0 0 1.294 2.588 321.5N-m b) ECUACION DE PENDIENTE DEFLEXION MATRIZ =MINVERSA 0.28978221 -0.05813585 0.02284296 -0.01142148 356.2N-m MAB 2EK(2θA+θB) -356.24N-m -0.058135849 0.1162717 -0.04568592 0.022842959 -390.2N-m MBA 2EK(2θB+θA) 458.03N-m 0.022842959 -0.04568592 0.128272 -0.064136 -242.9N-m MBC 2EK(2θB+θC) -67.86N-m -0.01142148 0.02284296 -0.064136 0.418431637 321.5N-m MCB 2EK(2θC+θB) 649.86N-m MCD 2EK(2θC+θD) -406.97N-m *Mmult MDC 2EK(2θD+θC) 397.33N-m θA 116.696 c)REMPLAZANDO VALORES EN LAS ECUACIONES ANTERIORES θB -47.636 θC -25.813 θD 137.130 θA θB θC θD M 3.836 1.918 0 0 -356.24N-m 1.918 3.836 0 0 458.03N-m 0 7.123 3.562 0 -67.86N-m g) CALCULO DE LOS MOMENTOS FINALES 0 3.562 7.123 0 649.86N-m 0 0 2.588 1.294 -406.97N-m MAB 0.000 0 0 1.294 2.588 397.33N-m MBA 499.116 MBC -499.116 MCB 296.319 d) CONDICIONES DE EQUILIBRIO DE NODOS MCD -296.319 MDC 718.848 MAB = 0 …………. (I) MBA + MBC= 0 …………. (II) MCB + MCD= 0 …………. (III) MDC+m = 0 …………. (IV) e)REMPLAZANDO LOS VALORES EN LAS ECUACIONES I,II, III Y IV 2EK(2θA+θB) -356.24N-m = 0 2EK(2θB+θA) 458.028N-m 2EK(2θB+θC) -67.86N-m = 0 2EK(2θC+θB) 649.856N-m 2EK(2θC+θD) -406.970N-m = 0 2EK(2θD+θC) 397.328N-m -718.8476 0 CALCULO DE LAS REACCIONES DE LA VIGA 499.116 -499.116 296.319 -296.319 -718.848 718.848 REACCIONES RA 526.22 N RB 1963.33 N RC 313.24 N RD 1549.96 N CARGA TOTAL 4352.76 N A B C D + + YONER CHÁVEZ BURGOS
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