(中国建筑科学研究院，北京 100013)

［摘要］阐述了《混凝土结构设计规范》修订中的基本构造问题，包括：确定伸缩缝间距的原则；根据耐久性要求对保护层厚度的调整；锚固长度的调整及机械锚固措施；钢筋连接的原则及对各类型接头的基本要求；以及受力钢筋最小配筋率的调整。

［关键词］伸缩缝；混凝土保护层厚度；锚固；连接；最小配筋率

中图分类号：TU318-4文献标识码：A文章编号：1002-848X(2011)05-0125-05

Introduction of revision of Code for design of concrete structure part Ⅳ:Basic structure measure problems

Liu Gang, Xu Youlin(China Academy of Building Research, Beijing 100013, China)

Abstract:The basic structure measure problems in the revision of Code for design of concrete structure were described, mainly including: the principle of identifying the expansion joints spacing, the adjustment of thickness of concrete cover according to the durability requirements,the revision to the anchorage length and the measures of the mechanical anchorage, the principle of reinforcement connection and the basic requirements of various types of joints, and the adjustment of minimum ratio of the stressed reinforcement.

Keywords:expansion joint; thickness of concrete cover; anchorage； connection； minimum ratio of reinforcement

作者简介：刘刚，工程师，硕士；徐有邻，研究员，博士；本文由徐有邻执笔。