Nota sobre o cálculo de impulsos activos sísmicos
DOI:
https://doi.org/10.14195/2184-8394_159_4Palavras-chave:
impulsos activos, impulsos sísmicos, equilíbrio limiteResumo
Para muros de suporte gravidade suportando aterros sem coesão, analisa-se uma limitação da validade dos métodos de Coulomb e Mononobe-Okabe para calcular impulsos activos estáticos e sísmicos determinados através de forças estáticas equivalentes. Mostra-se que para inclinações do tardoz dos muros de suporte superiores a dado valor, esses métodos clássicos não são válidos, formando-se um mecanismo diferente do considerado naqueles métodos. Apresenta-se uma metodologia simples para determinar os impulsos de terra activos em função da inclinação do tardoz da estrutura de suporte.
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Referências
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