劲性钢筋轻骨料混凝土梁柱节点抗剪承载力试验研究

Experimental Research on Shear Strength of Steel Reinforced Lightweight Aggregate Concrete Beam-Column Joint

通过对四个节点试件的试验,研究了由劲性钢筋轻骨料混凝土梁柱节点在低周反复荷载作用下的破坏形态.依据构件的破坏形态,对其破坏机理进行分析,提出了劲性钢筋轻骨料混凝土梁柱节点核心区的破坏特征及梁纵筋锚固方式及轴压比对节点抗剪强度的影响.

Through the test of four joint specimens, the failure form of the steel reinforced lightweight aggregate concrete beam-column joint is researched under low period cyclic loading. According to the failure form of the joint specimens, the failure mechanism is analyzed, and it advances the failure characteristics of the steel reinforced lightweight aggregate concrete beam-column joint core and advances the influences of the joint shear strength by the anchorage way of the longitudinal reinforcement in the beam and the ratio of axis compression stress to strength. Through the comparing with the calculation value, it obtains a lot of practical results.