本文介绍的新型组合网架结构,无论是支承条件,还是杆件的组成,均与已有的组合网架结构有所不同。它比正放四角锥组合网架节约钢材;也不像蜂窝三角锥组合网架,在自由边须另加自由过桁架,特别是对需开设天窗的工业车间与公共建筑,更显示其优越性。本文以实际工程为例,从设计计算,构造与施工等方面进行讨论,以便使该组合网架结构能进一步推广与发展。 The new combined grid structure introduced in this paper is different from the existing combined grid structures in terms of support conditions and the composition of the rods. It is more economical than a square pyramid combination grid, and unlike a honeycomb triangle grid, it must be free on the free edge, especially for industrial workshops and public buildings where sunroofs are needed. . This article takes the actual project as an example, discusses from the aspects of design calculation, structure and construction, etc., so that the combined network structure can be further promoted and developed.