混凝土结构设计规范若干问题的讨论

Discussion on Some Provisions of Code for Design of Concrete Structure (GB50010—2002)

鉴于钢筋混凝土双向板塑性铰线理论和条带法已足可满足设计需要,设计规范没必要再提出弯矩调幅法。结合工程设计与施工的实际情况,分析讨论了双向板与单向板的分界、梁侧面腰筋的设置、柱拉筋勾住封闭箍筋、按简支计算的梁端上部构造钢筋设置、板筋在端部与混凝土梁或混凝土墙整体浇筑的锚固长度以及环境类别与保护层厚度的确定等问题,提出了自己的观点。

Because the yield line method and the strip method of two way slab are convenient for design practice, it is not necessary to propose adjustment method of bending moments of two way slab. Based on design and construction practice, the dividing line of two way slab and one way slab, the end anchorage length of bars in slabs with assumed simply supported ends, the minimum concrete cover of structure members when its two sides subject to different environments respectively, and other details of reinforcement are discussed.