Probabilistic analysis of time-dependent deflections of RC flexural members

This paper presents a procedure for the probabilistic analysis of time-depe ndent deflection of a reinforced concrete flexural member subject to a time -varying load process. Particular consideration is given to simply supporte d, singly reinforced rectangular beams. The algorithm takes into account co ncrete maturation, nonlinear creep and shrinkage behavior, and stochastic l oad process models for both construction and service. While this paper desc ribes some practical implications of early-age effects (i.e., high early-ag e construction loads on immature concrete) for serviceability design, the e mphasis of this paper is on the probabilistic time-dependent deflection ana lysis technique. (C) 2001 Elsevier Science Ltd. All rights reserved.