本文根据设计实例和已建的三十多个半螺栓球节点斜放四角锥网架,进行内力和技术经济分析比较得知:30米左右跨度的斜放四角锥网架用钢量最省;网格大小及网架高度等参数对用钢量有较大的影响;设置赘杆能较好地调整杆件内力,降低造价。因此,本文对斜放四角锥网架的设计与施工具有实用参考价值。 According to the design example and the built-in more than 30 semi-bolt ball joints with diagonally placed quadrangular pyramid grids, the internal force and technical and economic analysis and comparison show that: the steel with the angle of about 30 meters is the least used for the inclined quadrangular pyramid grid. Parameters such as grid size and grid height have a greater impact on the amount of steel used; setting masts can better adjust the internal forces of the members and reduce the cost. Therefore, this paper has practical reference value for the design and construction of the oblique quadrangular pyramid grid.