本文是上一篇的继续,它主要介绍钢筋混凝土构件长期变形的影响因素以及分析长期变形的方法,即:时随系数法、刚度修正法及变弹性模量和“λ”法等,最后做一小结。1 概 述 在长期荷载作用下,梁的变形随时间在增长,这时中性轴向上移动,钢筋中的应力颇有增加。从理论分析来看主要包括三个方面: This article is the continuation of the previous article, which mainly introduces the long-term deformation of reinforced concrete elements and the analysis of long-term deformation methods, namely: when with the coefficient method, stiffness correction method and elastic modulus and “λ” method, and so on A summary. 1 Overview Under long-term load, the deformation of the beam increases with time, at which point the neutral axis moves upward and the stress in the reinforcement increases considerably. From the theoretical analysis, it mainly includes three aspects: