CLASE 1 - Muros

Diseño de muros •

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Muros no portantes: son aquellos aquellos que soportan solo su propio peso, cargas laterales, dentro de estos, en esta categoría se encuentran los muros de fachada, de d e retención y muros de sótanos.

El material presentado, fue sacado de: Diseño de concret concreto o reforzado reforzado –  McCormac Diseño de estructuras estructuras de concreto concreto –  Arthur Nilson NSR –  10 ACI 318 –  14 •

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Diseño de muros muros •

Se desarrolla chequeo con diagrama de int.

Vu ≤ ∅Vn Vu ≤ ∅V + ∅Vs

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Diseño de muros •

1. El diseño a cortante cortante debe cumplir cumplir con lo estipulado estipulado en el C.1 C.11.9. 1.9. (importante del capitulo –NSR10) → → 0,83    ℎ  Diendo h, espesor del muro y d C.11.9.4. → d = 0,8 → a menos que haga C.11.9.6 Vc no sebe ser mayor al valor de →   = 0,17λ    ℎ  →Vc puede ser el menor de

  = 0,27λ    ℎ  +

  4



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→  se permite que para secciones situadas mas cerca de la base del muro que Lw/2 o h/2 (la menor), sea diseñada para el mismo Vc, calculado para una distancia de Lw/2 o h/2 → donde Vu sea menor que 0,5 ØVc, es refuerzo a cortante, se proporciona según C.11.9.9 o C.14, si Vu es mayor que 0,5 ØVc el refuerzo se proporciona según C.11.9.9

   

1. Donde Vu> Vu> ØVc el refuerzo se calcula con base base a → =  En donde Av, área acero a cortante, S separación. 2. Cuantia minima (horizontal) a cortante no menor a →  =0,0025 3. Espaciamiento (horizontal) no menor a: →  = 450 →  =  /5

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Diseño de muros muros •

→   = 0,0012(barras