中文摘要：

利用ABAQUS软件中的自定义单元接口,采用Fortran语言开发弹性地基Timoshenko梁单元程序.通过与经典解的比较,验证所编弹性地基Timoshenko梁单元程序的准确性.该单元不仅考虑了地基弹簧受拉脱开的特点,而且还考虑了曲形梁单元内结点不在一条直线上的特点.采用所编写弹性地基梁单元分析青草沙原水过江输水工程,计算规律与已建类似工程实测结果相同.

英文摘要：

Using the user defined element interface in ABAQUS,the elastic foundation Timoshenko beam element is developed with Fortran language.Comparing with classic analytical solution,the result indicates that the accuracy of the element is high enough.That element not only considers the separation of the foundation spring under tension,but also considers the internal node of curve beam element is not on the line of two end nodes.Using the elastic foundation beam element,the Qingcaosha river-cross water diversion project is analyzed,the results agrees with the measured data of similar projects.