异形空间网架建模新技术--等高线法

空间网架结构具有施工工期短、结构整体刚度大、抗震性能好等特点，已广泛应用于大型体育场馆、展览馆、机场航站楼、商场等各类建筑中．以宁夏沙湖旅游区候船大厅空间网架为工程背景，提出了在Auto CAD中通过等高线对空间异形网架建立计算模型的新思路，从网格尺寸的选取、网架上弦网格线建立、网架的腹杆建立等几个方面详细介绍了等高线建模的步骤．结果表明：所建立的模型空间曲面光滑，杆件及节点定位尺寸精确，与建筑效果图完全吻合，可以满足工程设计要求．

Contour lines as a new technique for establishing models of space grid structure with fancy figure(SGSFF)

Based on the project of a hall for waiting for ships in Shahu Tourist Zone,a new technique of establishing a model in Auto CAD by contour lines for SGSFF is put forward,and the steps of establishing the model are introduced in detail according to the selection of the grid size,the establishment of top members and diagonal members for the truss respectively.The results of the establishment model by contour lines show that the model surface established by contour lines is smooth,and the members and nodes have accurate location.Furthermore,the model conforms to the architecture picture perfectly in meeting the requirement of engineering design.