江蛟，陶学康
（中国建筑科学研究院，北京100013）

[摘要] 介绍我国《混凝土结构设计规范》GB 50010-2002、美国ACI 318-05规范、欧洲规范2及英国规范BS 8110-1关于预应力混凝土结构裂缝控制的设计规定和构造措施；并探讨了预应力混凝土裂缝宽度限值对梁底钢筋最大允许间距的要求，总结和提出不直接计算裂缝宽度的裂缝控制设计建议。
[关键词] 预应力混凝土；裂缝控制；不直接计算；裂缝宽度；构造措施

Study on control of craclang without direct calculation of crack widths for prestressed concrete
Jiang Jiao, Tao Xuekang
(China Academy of Building Research, Beijing 100013, China)

Abstract: The provisions of cracking control and detailing measures for prestressed concrete in Code for design of concrete structures(GB 50010-2002), ACI 318-05, Eurocode 2-Design of concrete structures and British standard BS 8110-1 are introduced, then requirements of limiting values of crack width for the maximum allowable spacing of bars at the bottom of beams for prestressed concrete are studied and the recommended design methods for the control of cracking without direct calculation of crack widths are elaborated.
Keywords: prestressed concrete; control of cracking; without direct calculation; crack widths; detailing measures