部分预应力混凝土结构构件正截面的实用设计

提出了部分预应力混凝土（ＰＰＣ）结构构件正截面设计的一种新的思路，它以ＰＰＣ结构中所有ＰＰＣ构件同时满足两类极限状态为设计原则，基本避免了工程设计中常见的试算，设计结果合理、经济．推导了ＰＰＣ静定结构构件正截面的直接设计公式，并提出了ＰＰＣ超静定结构构件正截面设计的单位次弯矩法．另外，还对如何有效地利用ＰＰＣ超静定结构中由于施加预应力而产生的次内力进行了研究，并提出了设计建议．

Practical Design Method of Normal Sections of Members in Partially Prestressed Concrete Structures

A new design method of normal sections of members in partially prestressed concrete (PPC) structures is put forward. On the principle that all PPC members in PPC structures must simultaneously satisfy two categories of limit state, the method greatly simplifies the design process and makes design results reasonable and economical. Direct design formulas of normal sections of members in PPC statically determinate structures are derived, and the unit secondary moment method, a new design method of statically indeterminate PPC structures, is introduced. In addition, the problem of how to efficiently utilize the secondary force induced by prestressing is studied in detail, and corresponding design suggestions are also proposed.