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钢-混凝土组合结构梁柱连接中,当柱截面尺寸较大时,便存在梁内钢筋如何与柱的连接问题。结合实际,针对工程中所遇到的负弯矩区钢-混凝土组合梁翼缘板中附加纵筋如何与方钢管混凝土柱连接的问题,通过对采用两种不同附加纵筋连接形式的试件进行试验研究,得到翼缘板中不同的附加分布纵筋连接形式对负弯矩区钢-混凝土组合梁受力性能的影响。研究结果表明:钢-混凝土组合梁翼缘板中附加分布纵筋通过套筒与方钢管混凝土柱连接的方式,与将附加分布纵筋设置在柱两侧的方式相比,承载能力相差不大,但混凝土板的受力更合理。
Steel-concrete composite beam-column connection, when the column section size is larger, there is the problem of how to connect the beam with the column. Aiming at the problem of how the additional longitudinal reinforcement in the flange plate of the steel-concrete composite beam in the negative moment area meets with the concrete-filled square steel tube column in the project, the test with two different types of additional longitudinal reinforcement connections The influence of different longitudinal reinforcement connection modes on the mechanical behaviors of steel-concrete composite beams with negative moment is obtained. The results show that the additional longitudinal reinforcement in the flange plate of steel-concrete composite beam is connected with the concrete-filled steel tubular column through the sleeve. Compared with the method of arranging additional longitudinal reinforcement on both sides of the column, The stress of concrete slab is more reasonable.