摘要
结合1座在建3-(60+3×100+60)m刚构-连续组合梁桥,介绍该桥集大跨、长联、高墩、大群桩基础于一体的技术特点,对刚构墩不同类型的横向结构形式进行了对比分析,并从墩顶位移、墩身刚度、稳定性、温度应力影响等方面对刚构主墩的设计进行详细分析,结果表明该桥具有足够的强度、刚度和稳定性。
Taking a rigid-frame and continuous-beam combination bridge with the span arrangement(60+3×100+60)m under construction as an example,this paper introduces the technical characteristics of the bridge which involves in long span,long units,high pier and large pile group foundation,as well as analyzes contrastively the different transverse structure form of rigid frame piers.Besides,the paper analyses in detail the design of the main pier of the rigid frame,including the top displacement of the pier,pier rigidity,pier stability,and the temperature stress.The analysis results show that this bridge has enough strength,rigidity and stability.
出处
《铁道标准设计》
北大核心
2012年第4期79-82,共4页
Railway Standard Design
关键词
铁路桥
刚构-连续组合梁桥
高墩
刚度
稳定性
railway bridge
rigid-frame and continuous-beam combination bridge
high pier
rigidity
stability
