CAJ | 학술논문

介绍了铁路工程抗震规范提供的钢筋混凝土桥墩延性设计简化计算方法;同时对大偏压矩形截面构件的曲率延性系数简化计算公式进行了理论推导,并结合各国规范的塑性铰等效长度计算公式,得到构件的位移延性计算公式.以大瑞线某桥为工程实例,分别采用规范提供的方法及理论推导的公式进行计算,2种方法计算得到该桥矩形空心桥墩的位移延性系数基本一致,能为今后同类桥梁设计提供一定的借鉴.
개소료철로공정항진규범제공적강근혼응토교돈연성설계간화계산방법;동시대대편압구형절면구건적곡솔연성계수간화계산공식진행료이론추도,병결합각국규범적소성교등효장도계산공식,득도구건적위이연성계산공식.이대서선모교위공정실례,분별채용규범제공적방법급이론추도적공식진행계산,2충방법계산득도해교구형공심교돈적위이연성계수기본일치,능위금후동류교량설계제공일정적차감.
Simplified methods for ductile seismic design provided by "code for seismic design of railway engineering" are presented. A simplified formula for calculating curvature ductility coefficient of rectangular concrete section compressed eccentrically is deduced theoretically. Combining with formulas for calculating the equivalent length of the plastic hinges in the codes of many countries, the formula for displacement ductility coefficients is obtained. Then based on one bridge of DaLi-RuiLi railway line, displacement ductility coefficients of rectangular hollow piers calculated by both methods provided by the code and theoretical formula are basically identical. All these will be helpful to provide some reference for ductility design of similar bridges.