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(南京水利科學研究院  210029)
【提要】  為研究抗扭鋼混凝土組合梁的構(gòu)造要求和設計過程,分析了影響組合梁抗扭強度的主要因素,結(jié)合試驗和理論分析成果,對抗扭組合梁的截面尺寸、縱筋和箍筋的最大、最小配筋率和間距的構(gòu)造要求作了說明。給出了抗扭混凝土翼板截面的限制條件,提出了供實際使用的抗扭組合梁的實際設計方法。
【關(guān)鍵詞】  抗扭鋼混凝土組合梁  構(gòu)造要求  設計過程
Construction Requirement and Design Program of Composite Steelconcrete Beams Under Torsion/Hu  Shaowei(Nanjing Hydraulic Research Institute,Nanjing 210029,China)
Abstract:In order to investigate the construction requirement and design program of composite steelconcrete beam under torsion,the main affecting factors are analyzed in detail.Based on the theoretical analysis and experimental results,the construction requirements such as section dimension,the maximal and minimal percentage of reinforcement of longitudinal bar and transverse bar,bar spacing,are explained.Restrict conditions of the beam section under torsion are given.The practical design program of composite beams to resist torsion combined with flexure and shear is presented for tentative ecommendations.
Keywords:composite steelconcrete beam under torsion；construction requirement；design program