计算力学学报2023，Vol.40Issue(6)：1029-1035,7.DOI:10.7511/jslx20220507003
不同索网加劲的气承式膜结构受力特性研究
Study on the force characteristics of air-supported membrane structure with different cable network reinforcement
摘要
Abstract
An air-supported membrane structure is a typical flexible structure with strong nonlinearity,which is ensured with sufficient stiffness and stability by laying a cable network.In this paper,firstly,we conducted experimental research on air-supported membrane structures with different cable nets under different internal pressures through scaled-down tests,and analyzed the influence of the internal pressure on the magnitude of the cable force;Secondly,we established the same model as the tested structure through Ansys software,and verified the accuracy of the numerical simulation method by comparing and analyzing the results;Finally,we established an actual engineering model to study the displacement and stress distribution of the membrane surface under different internal pressures and height-to-span ratios to determine a reasonable height-to-span ratio of the structure,and to conduct a comparative analysis of the maximum stress and displacement of the structure under different internal pressures under two cable network arrangements.The results show that the diagonal cable network effectively restricts the displacement of the structure and improves the stress performance of the membrane surface,which can provide a reference basis for future engineering design.关键词
试验研究/索网加劲/数值模拟/内压/矢跨比Key words
experimental study/cable network reinforcement/numerical simulation/internal pressure/height-to-span ratio分类
数理科学引用本文复制引用
申跃奎,李洋,朱新雨,刘晨迪,李星..不同索网加劲的气承式膜结构受力特性研究[J].计算力学学报,2023,40(6):1029-1035,7.基金项目
陕西省自然科学基金(2018JM5130)资助项目. （2018JM5130）
