摘要
桥梁承台是连接桥墩和桩基的重要构件,通过大量工程实例分析,发现承台控制性设计因素往往是承台底“系杆”。按照《公路钢筋混凝土及预应力混凝土桥涵设计规范》(JTG 3362—2018)给出的承台“撑杆-系杆”公式进行计算,并且通过Midas FEA进行实体仿真分析,探讨桩基承台的传力机理,验证规范相关公式的可靠性,为之后的类似工程设计提供一些依据。
Bridge cushion cap is an important component connecting bridge pier and pile foundation.Through the analysis of a large number of engineering examples,it is found that the controlling design factor of the cushion cap is often the"tie bar"at the bottom of the cushion cap.According to the Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts(JTG 3362—2018),this paper gives the formula of"brace-tie bar"for pile cap for calculation,and carries out entity simulation analysis through Midas FEA to discuss the force transfer mechanism of pile cap,verify the reliability of relevant formulas in the code,and hope to provide some basis for similar engineering design in the future.
作者
管如意
赵洪蛟
管锡琨
张玉涛
张顺
GUAN Ruyi;ZHAO Hongjiao;GUAN Xikun;ZHANG Yutao;ZHANG Shun(Shandong Transportation Planning and Design Institute Group Co.,Ltd.,Shandong Jinan 250101 China)
关键词
桥梁工程
桥墩承台
实体模型
传力机理
撑杆-系杆
有限元
bridge engineer
pier cap
solid model
force transmission mechanism
brace-tie bar
finite element
