钢筋混凝土桥墩的延性

徐相国

（上海浦东建筑设计研究院股份有限公司市政所）

摘 要：国内外对钢筋混凝土柱的延性已作了相当多的试验研究和理论研究，我国同济大学学者们对延性也作了相应的研究，截面弯矩——曲率分析是确定构件截面曲率延性能力的基本分析工具，本文从理论上分析箍筋约束混凝土桥墩曲率延性，通过参数改变来分析影响曲率延性的因素。

关键词：弯矩——曲率、弯矩——曲率、配箍率，轴压比

                                          Theoretical Research On the Ductility of Reinforced Concrete Bridge Piers

                                                                                              Xu Xiang-guo

Abstract：a lot of lab research and theoretical analysis on the ductile behavior of reinforced  concrete bridge piers have been done all over the world.The scholars of Tong Ji university also studied it. The paper analyses bridge piers’ ductility factor according to change the parameter of R.C.    

Key word： concrete bridge piers confinement ductility