预应力混凝土超静定结构中次弯矩的合理利用

Rational utilization of second moment in pre-stressed concrete statically indeterminate structure

以直线布筋的两跨连续梁为例,探讨了预应力次弯矩的产生机理,从预应力束的截面偏心距的合理取值、合理布置、有效预应力的提高三方面介绍了次弯矩在预应力混凝土超静定结构中的合理利用,以供借鉴应用。

Taking the double-span continuous beam with linear bar-arrangement as example, the author discusses the mechanism of pre-stressed second moment＇ s generation, and introduces its rational utilization in pre-stressed concrete statically indeterminate structure from rational value selection of pre-stressed bind＇s section eccentric moment, rational arrangement and improvement of effective pre-stress, which to offer a reference.