【摘要】 针对目前埋地管道地震应力简化计算公式中存在的问题,本文采用弹性地基梁法,以结构动力学理论和地震波动力学理论为基础,推导了地震行波有夹角入射地下管道的运动微分方程和管土间的位移传递系数,得出横波、纵波具有相同的位移传递系数,进而求得管道的最大应变及应力。最后通过采用不同方法及本文方法进行实例分析,认为本文方法与实际情况较符合。更多还原

【Abstract】 For the current simplified formula problems of buried pipelines seismic stress,by using elastic foundation beam method,base on structural dynamics and seismic wave mechanics theory,the kinematics differential equations and pipe-soil displacement transfer coefficients of the underground pipeline under the incident wave with an angle between the incident traveling wave are derived,and it is concluded longitudinal and transverse waves have the same displacement transfer coefficient,and the maximum strain and stress of the pipe are received.Finally,by using different methods and the method of this paper to analyze an example,the method proposed in this paper is more in line with the actual situation.更多还原