傅剑平    白绍良
（重庆大学土木工程学院 400045）

[提要] 《混凝土结构设计规范》( GBJ10-89)因缺乏试验依据，仅根据推断给出了钢筋混凝土框架顶层中间节点抗震验算的有关规定，而将主要构造规定留作空缺。此次规范修订，根据试验结果验证了原规范的抗震抗剪规定，并在工程经验和试验结果的基础上，给出了抗震及非抗震顶层中间节点较完整的构造规定，着重说明了项层中间节点的受力特点及修订后规范有关设计及构造规定的背景情况。
[关键词]  钢筋混凝土  框架  顶层中间节点  规范

Relevant provisions on seismic check of interior top-column joints in the former Design Code of Reinforced Concrete Structures( GBJl0-89), were based on experiences, not on reliable testing data. And no provisions were provided for detailing. ln the recent revision of the code, provisions on seismic shear check are verified by testing data. Furthermore, a set of provisions on detailing are given on the basis of both engineering experiences and testing data. Background to both the behavior of such joints and according revised design and detailing provisions is provided.
Keywords: reinforced concrete; frame; top-column joint; design code