黃河水利職業(yè)技術(shù)學院風雨球場張拉膜結(jié)構(gòu)分析
童麗萍，司瑞娟，曹延波
- 摘 要
-
(鄭州大學土木工程學院，450002)［提要］黃河水利職業(yè)技術(shù)學院風雨球場張拉膜結(jié)構(gòu)是由跨度86.4m的桁架拱、空間鋼桁架和張拉膜系統(tǒng)組成的新型空間結(jié)構(gòu)體系。采用有限元軟件ANSYS對結(jié)構(gòu)體系在各種荷載作用下的受力和變形規(guī)律進行了探討，特別討論了索膜的受力和變形情況。分析結(jié)果認為，膜的找形結(jié)果滿足設計和使用要求。柔性膜結(jié)構(gòu)的大變形使膜單元和索單元應力退化，特別是在風升作用下，脊索應力有明顯的損失。邊索和鋼拱的連接部位受力和變形較大，應加設側(cè)向支撐和腹桿。［關(guān)鍵詞］張拉膜；空間結(jié)構(gòu)；混和邊界；結(jié)構(gòu)分析Analysis of Tensioned Membrane Structure for Gymnasium of YRHVI/Tong Liping, Si Ruijuan, Cao Yanbo (Department of Civil Engineering, Zhengzhou University, Zhengzhou 450002,China)Abstract:The tensioned membrane structure of the gymnasium of Yellow River Hydrotechnical Vocational Institute (YRHVI) is a new typed system of space structure, which consists of an arch-truss with the span of 86.4m, special steel truss and tensioned membrane system. The finite element software ANSYS is used to calculate the laws of stressing and deformation of structure, especially the cablemembrane structure, under various sorts of loads so that some useful results for project designing can be obtained, which will provide certain reference for other similar projects.
Keywords:tensioned membrane; space structure; combined boundary; structural analysis
