作　　者： ; ;

机构地区： 广州地铁设计研究院有限公司

出　　处： 《水利与建筑工程学报》 2018年第5期42-47,共6页

摘　　要： 为深入研究花瓶墩实用设计方法,分别采用撑杆-系杆体系法、拉-压杆模型法对某实体花瓶墩进行了受力分析,并结合线弹性有限元法对比2种方法的计算结果;在此基础上,对花瓶进行了墩配筋设计,并采用弹塑性有限元法验证了配筋设计的合理性。研究结果表明:简化计算方法与有限元模型所得结果相比均偏安全,2012规范中的拉-压杆模型方法所得结果与有限元结果的差值最小,在进行初步设计及配筋时,可作为简化计算依据。 In order to deeply analyze the practical design method of the vase pier,the stress analysis of a solid vase pier was carried out by using the brace-tie system method and strut-and-tie model,and the calculation results were compared with the linear elastic finite element method. On this basis,the reinforcement design for the vase pier was conducted,and the elastoplastic finite element method was used to verify the rationality of the reinforcement design.The research results indicate that the results obtained from the simplified calculation method are safer than the one from the finite element model results. The result gained from strut-and-tie model method in 2012 standard has the minimum difference with that of finite element method. It can be used as a simplified calculation basis when preliminary design the reinforcement.

关 键 词： 桥梁工程 花瓶墩 拉 压杆模型 撑杆 系杆体系 应力迹线

领　　域： []