某箱型拱桥结构承载性能检算分析 / The Test Analysis of the Structure Bearing Capacity of a Box Arch Bridge
- Resource Type
- Academic Journal
- Authors
- 王云平; 唐德金; 赵德深; WANG Yun-ping; TANG De-jin; ZHAO De-shen
- Source
- 大连大学学报 / Journal of Dalian University. (6):37-40
- Subject
- 桥梁承载力
箱型拱桥
安全分析与评定
bridge bearing capacity
box arch bridge
safety analysis and assessment
- Language
- Chinese
- ISSN
- 1008-2395
随着桥梁运营时间的不断增加,桥梁将会在多种因素的影响下出现承载力下降的趋势。所以,公路桥梁承载安全分析与评定,在桥梁使用中是一个极其重要的问题。本文以一座钢筋混凝土箱型拱桥为依托背景,利用有限元分析软件MIDAS-civil建立该桥的空间有限元模型,对主拱圈进行承载能力验算。结果表明:大桥承载能力极限状态下主拱圈边箱室和中箱室控制截面弯矩及相应轴力极限承载能力能满足汽车-20级、挂车-100级荷载等级的要求。
With the increase of bridge operation time, the bearing capacity of the bridge will decline under the influence of various factors. So, bearing capacity analysis and safety assessment are a very important problem in the period of using. This paper is based on a reinforced concrete box arch bridge to establish the finite element model of the bridge by using the finite element analysis software MIDAS-civil, and checked the bearing capacity of main arch ring. The results show that the ultimate bearing capacity of bending moment and axial force of the main arch ring box section meet the requirements of load grade of car-20 and trailer-100 under the limit state of carrying capacity of bridge.