浅埋现浇钢筋混凝土椭球面扁壳设计研究

Research on Design of Shallow-earthed Cast-in-place Concrete Elliptical Oblate Surface with an Elliptical Bottom

建立正确合理的力学模型对各种初设参数的椭圆形底椭球面扁壳进行分析,以探讨椭圆形底椭球面扁壳的合理设计方法。结合数值计算结果和设计中的一些体会,对影响椭圆形底椭球面扁壳内力的一些主要因素进行了分析和总结,绘制了一套常用参数下椭圆形底椭球面扁壳内力变化曲线,可供设计人员合理选择初设参数。根据实际工程应用和分析,计算数据与结构原型试验实测数据吻合较好,成果可信。

The reasonable design of elliptical oblate surface with an elliptical bottom is discussed through establishing correct mechanic models and analyzing elliptical oblate surfaces with an elliptical bottom of different conceptual design parameter. Combining the calculating results and experiences in designing, a summary and analysis of the main factors that affect the internal force of the elliptical oblate surface with an elliptical bottom is made. A curve graph with common-used parameters of the internal force change of elliptical oblate surface with an elliptical bottom is made for designers to refer in selecting conceptual design parameter reasonably based on the rule of variation. Moreover, the research results have been applied to practical engineering and the calculating data coincides with the experimental well, which shows the results are credible.