钢筋混凝土土体地下粮仓仓壁结构选型初探  

Preliminary Study on the Structural Scheme Selection of the Wall of Reinforced Concrete Underground Granary

作　　者：熊晓莉[1] 都坤 XIONG Xiaoli;DU Kun(School of Civil Engineering,Henan University of Technology,Zhengzhou 450001,China)

机构地区：[1]河南工业大学土木工程学院,郑州450001

出　　处：《安阳工学院学报》2020年第2期60-66,共7页Journal of Anyang Institute of Technology

基　　金：粮食公益性行业科研专项(201413007)。

摘　　要：选择合理的钢筋混凝土土体地下粮仓仓壁结构形式,对绿色生态仓储结构设计而言,具有重要意义。基于弹塑性力学中的平面应变问题求解方法,推导出仓壁曲面的母线方程,得出受力合理的仓壁结构形式取旋转抛物面的结论;为验证该结论的正确性,选取仓壁形式分别为圆柱筒形、方筒形、圆台筒形、喇叭形以及旋转抛物面形的五种仓型,利用有限元方法进行受力分析后发现:受力最为合理的是旋转抛物面形仓壁,其次为圆柱筒形仓壁和喇叭形仓壁,最后为圆台筒形仓壁和方筒形仓壁。从结构受力角度考虑,在大型钢筋混凝土土体地下粮仓设计中优先选用旋转抛物面形仓壁。For the design of green ecology storage,it is of great significance in theory to select the rational form of the wall of reinforced concrete underground granary. Based on the solving method of the plane-strain-problem in the elastic-plastic mechanics,the generating curve of the wall of granary is inferred. Therefore, it is concluded that the paraboloid of revolution is the most reasonable structural style of the wall of the underground granary.Then, to verify that conclusion, the stress of five kinds of granaries with different kinds of walls, such as circular cylinder wall, square cylinder wall, circular-truncated-cone-shaped wall, trumpet-shaped wall and rotating-parabolic-shaped wall, are analyzed by the FEA. The results show that the granary with the rotating-parabolicshaped wall has the most reasonable performance, followed orderly by the one with the circular cylinder wall, the one with the trumpet-shaped wall, the one with the circular-truncated-cone-shaped wall and the one with the square cylinder wall. Therefore, the granary with the rotating-parabolic-shaped wall is the preferred form in the design of large-scale reinforced concrete underground granaries.

关 键 词：土体地下粮仓 钢筋混凝土 仓壁 结构选型 有限元法 

分 类 号：TU354[建筑科学—结构工程]