基于预应力度法的预应力混凝土结构的设计

Prestressed concrete structural design based on degree of prestress

预应力度是反映预应力混凝土结构性能的一项重要指标。文章基于构件使用性能的预应力度定义,推导了预应力混凝土静定结构和超静定结构的预应力筋计算公式,建立了预应力度和等效荷载的关系表达式,给出了基于预应力度的设计方法和步骤。

The degree of prestress is an important characteristic of prestressed concrete structure. On the basis of prestress degree based on the used capability, the solution expressions of prestressed reinforcement for both statically determinate and statically indeterminate prestressed structure are deduced, respectively, the relationship between prestress degree and equivalent load are established. Finally, the design method and procedure based on prestress degree are proposed.