【摘要】：為了研究混凝土板組合效應(yīng)對蜂窩梁柱連接抗震性能的影響,對無混凝土板和有混凝土板的正六邊形蜂窩梁柱連接、普通組合梁柱連接進(jìn)行擬靜力試驗。研究混凝土板組合效應(yīng)對不同開孔率的蜂窩梁柱連接的破壞形態(tài)、承載能力、剛度、延性及耗能能力的影響。試驗結(jié)果表明:蜂窩梁柱連接可以有效地控制塑性鉸在近柱端第一個蜂窩孔處形成,實現(xiàn)塑性鉸外移,降低在梁柱連接焊縫處發(fā)生脆性破壞的可能性;混凝土板的組合效應(yīng)可以減小蜂窩梁剪切變形的影響,與無混凝土板的蜂窩梁柱連接相比,有混凝土板的蜂窩梁柱連接的滯回曲線更飽滿;混凝土板的組合效應(yīng)能夠提高蜂窩梁柱連接的承載能力、延性、剛度及耗能性能,開孔率越大,組合效應(yīng)越顯著;混凝土板組合效應(yīng)降低了塑性鉸區(qū)的轉(zhuǎn)動能力。
[Abstract]:In order to study the effect of concrete slabs combination effect on seismic behavior of honeycomb Liang Zhu connections, quasi-static tests were carried out on hexagonal honeycomb Liang Zhu connections without concrete slabs and concrete slabs, and ordinary composite Liang Zhu connections. The effects of combination effect of concrete slabs on the failure mode, bearing capacity, stiffness, ductility and energy dissipation capacity of honeycomb Liang Zhu connections with different opening ratios were studied. The experimental results show that the cellular Liang Zhu joint can effectively control the plastic hinge forming at the first honeycomb hole near the end of the column, realize the plastic hinge moving out, and reduce the possibility of brittle failure in the weld seam of the Liang Zhu joint. The combination effect of concrete slabs can reduce the shear deformation of honeycomb beams. Compared with honeycomb Liang Zhu connections without concrete slabs, the hysteretic curves of honeycomb Liang Zhu connections with concrete slabs are fuller than those without concrete slabs. The combination effect of concrete slab can improve the bearing capacity, ductility, stiffness and energy dissipation performance of honeycomb Liang Zhu connection, and the larger the opening ratio, the more significant the combination effect is, and the combination effect of concrete slab reduces the rotation capacity of plastic hinge region.
【作者單位】： 沈陽建筑大學(xué)土木工程學(xué)院;沈陽建筑大學(xué)建筑設(shè)計研究院;哈爾濱工業(yè)大學(xué)建筑設(shè)計研究院沈陽分院;
【基金】：國家自然科學(xué)基金項目(51578346)
【分類號】：TU391

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