This paper puts forward a new system of multi-prestressed steel lattice shell structure for large span space roof.
本文对大跨度空间屋盖提出了一种多次预应力钢网壳结构新体系。
The presentation and application of prestressed steel structure has come through about half a century, but the application of prestressed double layer space grids is merely twenty years.
预应力钢结构的提出和应用已经历了将近半个世纪，而预应力钢网架的应用，还只是近二十年的事。
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