基于ADINA的塌陷区立交桥设计

Design discussion of overpass in subsidence area based on ADINA

运用非线性有限元软件ADINA数值模拟与理论公式计算相结合的手段,以枣木高速公路木石公铁立交桥为原型对采空区上桥梁进行分析研究。分别研究多种不同情况下桥梁应力、应变和稳定性的变化规律,并提出相应的应对措施。设计出最安全可靠,是最适合采空塌陷区的桥梁结构形式。该成果对相近工程具有一定的参考价值和指导意义。

Using a combined method of ADINA non-linear finite element numerical simulation software and the theoretical formula calculation the bridge in mine subsidence areas is analyzed, with Zaomu rail-highway overpass as prototype. The different circumstances bridge stress, strain and the changes of stability we studied the corresponding response measures are proposed. Finally, The most reliable and suitable bridge structure is designed in mining collapse areas. The results have a certain value and significance to the similar projects.