摘要
高墩多跨连续刚构桥成桥后,混凝土的收缩、徐变以及温度的变化都会对主体结构的变形和内力产生较大的影响.结合工程实例,进行了合龙顺序的优化分析.分析结果表明:合理的合龙顺序既能保证高墩多跨连续刚构桥的成桥线形满足设计要求;也能保证桥梁在长期运行时,其承载能力满足实际要求.
Concrete shrinkage and temperature change have great effects on the deformation and internal force of girder and pier after the multiple-span continuous rigid frame bridge with high pier has finished,combined with the examples of closure order optimization analysis.The results show that the reasonable closure order can be obtained to sure the multiple-span continuous rigid frame bridge with high pier,which can bear stronger negative bending moment,the bridge linear satisfies the design requirements.
出处
《交通科学与工程》
2012年第3期37-41,共5页
Journal of Transport Science and Engineering
关键词
高墩多跨连续钢构桥
合龙顺序
顶推力
优化分析
the multiple-span continuous rigid frame bridge with high pier
closure order
jacking force
optimization analysis
