地铁出入口大跨度接口梁数值分析

摘要

By means of an FE space model, the internal force of large span beam at subway station entrance have been found and compared with the internal force of the traditional planar model, the result shows that the internal force of the space calculation model is closer to the real strained condition than to the traditional planar model. The torque moment of the large span beam at metro entrance is not the dominant element, while the bending moment is similar to the elastomeric supported beam.%建立空间计算模型对地铁出入口大跨度接口梁的内力等进行数值分析,提出接口梁空间计算模型及其内力计算结果,对比传统平面简化计算模型的内力结果,得知空间计算模型结果更接近接口梁的真实受力状态,接口梁的扭矩不是受力的控制性因素,而接口梁的弯矩接近弹性支座梁的弯矩.