たるみ性ネットの載荷実験と計算モデル

概要

論文の詳細を見る
High-tension cable nets are, owing to strong pre-stressing, stiff enough to be used in structural and architectural engineering practice. In contrast ot these high-tension nets, low-tensioned or extremely flexible nets, such as sports nets, spider nets, hammocks, fish and mosquito nets, are usually not for engineering purposes. Therefore, thesefrexible nets have been so far not frequently treated in structural engineering. The no-compression material property and extreme frexibility of nylon or polyester nets present, however, academically interesting issues from the viewpoint of structural analysis and computational mechanics. At the beginning of equilibrium iteration, for example, no initial stiffiness may be expected and net segments may also show sags and slackness in the deformed configuration. Only a few experimental and analytical works are available on this particular type of nets. In the present study, loading tests are carried out on extremely flexible nets and the experimental results are compared to those by an effective computational model for varification. The eigenanalysis of free vibration is also useful to compare the hexagon and rectangular mesh nets from the aspects of eigenvectors.
社団法人日本建築学会の論文
2007-06-30