- 摘 要
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（1 西部綠色建筑國家重點實驗室/西安建筑科技大學， 西安 710055;2 西安建筑科技大學土木工程學院， 西安 710055;3 西安建筑科技大學結構工程與抗震教育部重點實驗室， 西安 710055）
［摘要］鋼筋混凝土板柱節(jié)點受沖切承載力是目前板柱結構存在的突出問題，對確保此類結構的安全性至關重要。在國內外大量研究的基礎上，回顧了國內外學者提出的板柱節(jié)點受沖切承載力模型理論的發(fā)展過程，重點闡述了桁架模型、臨界剪切裂縫理論、塑性理論、切向應變理論和臨界截面應變理論等。針對板柱節(jié)點受沖切承載力的幾種典型計算方法，深入分析了混凝土強度、板有效高度、配筋率、縱筋屈服強度和柱邊長等參數(shù)對板柱節(jié)點受沖切承載力的影響，并利用試驗數(shù)據(jù)分析了各種計算方法的適用性及局限性，提出對板柱節(jié)點受沖切承載力計算方法的認識并闡述其發(fā)展方向。
［關鍵詞］板柱節(jié)點； 受沖切承載力； 模型理論； 無梁樓蓋
中圖分類號：TU375文獻標識碼：A文章編號：1002-848X(2021)02-0001-08
Analysis on calculation methods of punching shear capacity of reinforced concrete slab-column connections
SHI Qingxuan1,2,3, JIANG Mingyue2
(1 State Key Laboratory of Green Building in Western China, Xi′an University of Architecture ＆ Technology, Xi′an 710055, China; 2 School of Civil Engineering， Xi′an University of Architecture ＆ Technology， Xi′an 710055， China; 3 Key Lab of Structural Engineering and Earthquake Resistance, Ministry of Education(XAUAT), Xi′an 710055， China)
Abstract:The punching shear capacity of reinforced concrete（RC）slab-column connections is a prominent problem in the current slab-column structure, which is critical to ensuring the safety of such structures. Based on a large number of researches at home and abroad, the development of punching shear capacity model theory of slab-column connections proposed by domestic and international scholars was reviewed. It focused on the truss model, critical shear crack theory, the theory of plasticity, tangential strain theory and strain-based strength theory. In view of several typical calculation methods for the punching shear capacity of the paramnters such as slab-column connections, the effects of the parameters such as concrete strength, effective depth, reinforcement ratio, yield strength of flexural reinforcement and the length of the column on the punching shear capacity of the slab-column connections were analyzed in depth，and the applicability and limitations of various calculation methods were analyzed by using experimental data. The understanding of the calculation method of punching shear capacity of slab-column connections was proposed and future development direction was expounded.
Keywords:slab-column connection; punching shear capacity; model theory; griderless floor
*國家自然科學基金項目（51878540）。
作者簡介：史慶軒，博士，教授，博士生導師，Email:shiqx@xauat.edu.cn；通信作者：蔣明月，博士研究生，Email:jiangmingyue_ad@163.com。
