摘要
以主跨为200m的预应力混凝土三跨连续刚构桥为工程背景,通过数值分析,讨论了其动力特性;给出了设计风速范围内、两种不同工况作用下,最大双悬臂施工状态主梁各控制截面的风致内力。
Taking the prestressed concrete triple-span continuous rigid frame bridge with main span 200m as engineering background,the dynamic characteristics is discussed through numerical analysis;the wind internal force of maximum double cantilever at different sections during construction is given under designed wind speed and two different operation conditions.
出处
《北方交通》
2011年第2期60-62,共3页
Northern Communications
关键词
刚构桥
最大双悬臂
风致内力
Rigid frame bridge
Maximum double cantilever
Wind internal force
