Design of Arch Beam Combination Section of Long Span Through Arch Bridge
尹开川YIN Kai-chuan;袁警YUAN Jing;矣志勇YI Zhi-yong;
郭伟峰GUo Wei-feng;钟豪ZHONG Hao
（云南省交通规划设计研究院有限公司,昆明650011 )
( Yunnan Institute of 'Transportation Planning and Design, Kunming 650011 , China)
摘要;根据下承式系杆拱桥结构体系受力特点,本桥拱梁钢混结合部采用混凝土拱座进行连接,连接传力模式采用全截面连接完全承压式。拱梁结合部构造复杂,受到主拱肋、主梁和横梁和系杆荷载的共同作用,具有荷载大,作用区域重叠的特点,传力途径不清晰。根据结构受力特点,采用精细化有限元进行计算分析,根据计算结果指导设计,有利于保障结构安全。
Abstract: Accordling to the stress characteristics of the structural system of the through tied arch bridge, the steel concrete joint of thearch beam of this bridge is connected wih a concrete arch seat, and the commection force transmission mode is full section connection andfill bearing type. The structure of the arch beam joint is complex, and it is subject to the combined action of the main arch rib, main beam,cross beam and tie bar loads.Ilt has the characteristics of large load,overlapping action areas，,and unclear force transmission path.Accordling to the mechanical characteristics of the structure, the refined finite element method is used for calculation and analysis, and thedesign is guided according to the calculation results，which is conducive to ensuring the safety of the struclture.
关键词:下承式系杆拱桥;拱梁钢混结合部;精细化有限元;全截面连接完全承压式
Key words: through tied arch bridge; arch beam steel-concrete joint;,refined finite element; full section connection fully pressurebearing type
价值工程-文章出处：尹开川,袁警,矣志勇等.大跨度下承式拱桥拱梁结合段设计[J].价值工程,2023,42(20):91-93. |
