本文在混凝土简支梁横向稳定性分析的基础上，提出了橡胶支座上梁体横向稳定性的理论计算方法。同 时，为方便实际工程中使用，利用数学分析的方法，还提出了梁体横向稳定性的实用计算方法，并进行了室内模 型实验，验证了该方法的正确性

This paper presents theoretical calculation method for lateral stability of beam body on rubber seat, based on the analysis of lateral stability of concrete simple-supported beam. At the same time, the paper also presents the practical calculation method for lateral stability of beam body by adopting mathematical analysis way in order to make it easy to be applied in construction. The lab model experiment was done for testing the accuracy of the method.