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我国新的混凝土结构设计规范(GBJ10—89)和建筑抗震设计规范(GBJ11—89),虽然对框架节点核心区的抗震验算与配筋构造作了具体规定,但对框架顶层拐角节点的构造却未作具体规定,因此本文根据国内外对框架顶层拐角节点试验,得出节点受力性能与破坏情况,结合火力发电厂框架承受荷载大、跨度大的实际情况,对框架顶层拐角节点的配筋构造与计算提出建议,供设计采用。
China’s new concrete structural design code (GBJ10-89) and architectural seismic design code (GBJ11-89), while specifying the anti-seismic checking and reinforcement structure of the core node of the frame node, the structure of the corner node at the top of the frame is No specific provisions are made. Therefore, according to the experiments at home and abroad on the top corner of the frame, this paper concludes that the joints are subjected to stress and damage, combined with the fact that the frame of the thermal power plant has large loads and large spans, and the reinforcements at the top corners of the frame are not reinforced. Construct and calculate recommendations for design use.