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引言、研究方法及范围混凝土结构中的徐变影响,其数学推算是一项复杂的工作,即使使用当前设计规范中所推荐的简化的线性徐变法则形式来进行亦如此。因而工程师们不得不借助于各种近似的分析方法,如有效模量法或徐变率法。不过,由于对这些方法本身的近似性所引起的误差量尚未作认真研究,因而究竟使用哪种方法,很大程度上,仍依靠直观判断确定。本文的目的,在于对此问题提出详细的数值研究成果。
INTRODUCTION, RESEARCH METHODS AND SCOPE Creep effects in concrete structures are computationally complex, even using the simplified form of linear creep law recommended in current design codes. Engineers therefore have to resort to a variety of approximate analytical methods, such as the effective modulus method or the creep rate method. However, since the amount of error caused by the approximation of these methods has not been carefully studied, which method is used is largely determined by intuition. The purpose of this paper is to present a detailed numerical study on this issue.