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本文基于名义拉应力法的基本原理，结合各类结构的理论研究与分析，考虑次内力和外荷载对结构抗裂性能的影响，进而给出了各类预应力混凝土结构正截面裂缝控制的统一计算方法，依据本文方法进行各类结构设计，设计简便、可靠。
Based on the basic principle of the nominal tensile stress method, combined with theoretical research and analysis of various types of structures, this paper considers the influence of sub-internal forces and external loads on the crack resistance of structures, and then presents the unified control of cracks in the normal section of various types of prestressed concrete structures. The calculation method is based on the method of this article for all kinds of structural design. The design is simple and reliable.