摘要
应用结构力学方法对目前我国采用较多的扁平单心圆大跨高速公路隧道的结构进行内力计算,分析不同的荷载工况,将墙角与仰拱的结合部位圆顺过渡以改善受力状态,经过理论计算,以衬砌各截面中弯矩的最大值达到最小为优化目标,找到最优的隧道横断面形式。
In the light of the method of structural mechanics, the paper calculates the internal force of the structure of the large-span flat single circle highway tunnel that is frequently adopted in our country, analyzes different load conditions and its combination,and adopts circular arch transition at the joint point between the sidewall and invert to change its mechanical charactcristic. Through theoretical calculations,an optimized traverse section of the tunnel is found with the target that minimizes the maximum of the moment of the different sections of lining.
出处
《国防交通工程与技术》
2003年第4期39-41,49,共4页
Traffic Engineering and Technology for National Defence
