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对X形配筋增强、T形钢骨增强、槽形钢骨增强的混凝土异形柱边节点进行拟静力试验,研究混凝土异形柱边节点核心区的箍筋应变规律、混凝土应变规律、破坏特征及滞回曲线,分析X形配筋、T形钢骨、槽形钢骨对混凝土异形柱边节点受力性能的影响。结果表明:混凝土异形柱边节点核心区不同位置处箍筋应变相差比较大,边节点核心区中与剪力方向平行的腹板箍筋应变大于与剪力方向垂直的腹板箍筋应变和翼缘处的箍筋应变,在混凝土异形柱边节点核心区加入X形配筋、T形钢骨或槽形钢骨能够提高混凝土异形柱边节点核心区混凝土的主拉应变,改善异形柱边节点的破坏形态及滞回性能。
The quasi-static tests on the special-shaped column edge joints of reinforced concrete with X-shaped reinforcement, T-shaped steel reinforcement and channel-shaped steel reinforcement were carried out to study the strain of the stirrups, the strain of concrete and the failure characteristics And hysteresis curve, the influence of X-shaped reinforcement, T-shaped steel and grooved steel on the behavior of concrete with special-shaped columns was studied. The results show that the strain of the stirrups differs greatly at different positions in the core zone of the special-shaped columns, and the stress of the web stirrup parallel to the shear direction in the core of the edge joint is larger than that of the web stirrup strain and the wing perpendicular to the shear direction The edge of the hoop strain, adding X-shaped reinforcement in the core area of the edge of the concrete shaped column node, T-shaped steel or slotted steel can increase the concrete primary tensile strain in the core of the concrete shaped column edge node to improve the special-shaped column edge node Destruction form and hysteresis performance.