- 摘 要
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(1 湖南大學(xué)土木工程學(xué)院，長沙 410082； 2 同濟大學(xué)土木工程學(xué)院，上海 200092)
［摘要］根據(jù)試驗和理論研究成果，對方鋼管混凝土柱穿心高強螺栓-端板節(jié)點核心區(qū)的受力機理進行了分析，建立了節(jié)點核心區(qū)的受力模型和屈服機制，推導(dǎo)了節(jié)點核心區(qū)的抗剪承載力計算公式。公式不僅考慮了螺栓和柱軸力對節(jié)點核心區(qū)實際受力狀態(tài)的影響，而且考慮了鋼管對混凝土的約束作用。用推導(dǎo)的公式計算了3個方鋼管混凝土柱穿心高強螺栓-端板節(jié)點試驗?zāi)Ｐ凸?jié)點區(qū)的抗剪承載力，計算結(jié)果與試驗結(jié)果吻合較好。
［關(guān)鍵詞］方鋼管混凝土柱；穿心高強螺栓-端板節(jié)點；節(jié)點核心區(qū)；剪切剛度；抗剪承載力
Study on shear-carrying capacity of through high strength bolts-end plate connection for concrete filled square steel tube column
He Yibin1, Huang Pin1, Leng Qiaojuan2, Xiao Alin1(1 College of Civil Engineering, Hunan University，Changsha 410082, China； 2 College of Civil Engineering, Tongji University，Shanghai 200092, China)
Abstract:According to theoretical analysis and test results, the mechanism of force transfer in panel zone was analyzed, and a mechanical model was established in order to derive theoretical equations for calculating the yielding shear strength and the ultimate shear strength of the panel zone. The formulas not only take into account the effect of high strength bolts and axial compressive force of column, but also the restriction provided by steel tube for concrete. The formulas were used to calculate the shear-carrying capacity of the panel zone of three specimens, and the results computed by presented formulas agreed well with experiments data.
Keywords:concrete filled s
