某复杂框支转换层三维实体模型分析

Analysis of 3D Solid Model of a Complex Frame Support Transfer Storey

对某复杂框支转换层通过采用三维实体模型与采用壳单元转换梁加弹性膜楼板模型进行对比分析,了解各项内力差异规律并分析原因,对比转换梁设计承载力与三维实体模型内力需求,确保转换梁设计安全。计算结果表明,按壳单元转换梁加弹性膜楼板模型计算并满足现行规范构造要求进行转换梁设计是安全可靠的。

Based on the comparative analysis of 3D solid model and elastic membrane floor model with shell element for complex frame support transfer storey,that reveals the reason of the change law of internal force of transfer beam. According to the comparative results of the need of design bearing capacity of transfer beam and the need of internal force of 3D solid model,the design methods of transfer beam are put forward in order to ensure the safety of the complex frame support transfer storey. The results show that it is safe to use elastic membrane floor model with shell element for transfer beam meet the existing code requirements for detailing.