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部分填充式组合结构具有预制化程度高、节点连接方便等优点。对部分填充式组合结构的梁柱节点进行改进,通过在节点处设置隔板,使混凝土浇筑能够控制在小范围内;加劲式外伸端板的构造能够抵抗正、负弯矩作用;同时改进了相连构件中翼缘连杆的连接型式,使之对翼缘的局部屈曲提供更有效的约束。设计了2个试件,对其进行静力试验,研究节点的破坏机理、受剪承载力和变形能力。试验表明:试件承载力未出现下降趋势,节点具有良好的延性。在合理假定基础上,构建节点受剪承载力的理论模型并推导了计算公式,与试验结果进行对比,二者吻合良好。
The partially filled composite structure has the advantages of high degree of prefabrication and convenient connection of nodes. The beam-column joint of partially filled composite structure is improved. The concrete placement can be controlled within a small area by providing the partition at the node. The structure of the stiffening outrigger end plate can resist the positive and negative bending moments. At the same time, the improvement The type of connection of the flange linkages in the connected components provides more effective restraint on the local buckling of the flanges. Two specimens were designed and their static tests were carried out to study the failure mechanism, shear capacity and deformation capacity of the joints. Experiments show that the bearing capacity does not show a downward trend, the node has good ductility. On the basis of reasonable assumption, the theoretical model of the shear capacity of the joint is established and the calculation formula is derived, which is in good agreement with the experimental results.