Simplified procedures for calculation of instantaneous and ...

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62 Engenharia Civil • UM Número 24, 2005 Critical section may be taken at midspan for simple and continuous beams, and at support for cantilevers. The factor ξ depends on the duration of the load, being ξ=2.0, for 5 years or more, and ξ=1.4, for 12 months of duration of the load. The total deflection of the beam, W, is given by

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