This paper has presented the construction technique of the assembling in site about the large-span steel pipe roof truss and the technique of integral lifting about the truss.

本文主要介绍大跨度钢管桁架的现场拼装和整体提升的施工技术措施。

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Through building optimum model of truss Bridges, utilizing structural analysis methods and combining examples of optimum algorithms, the dynamic design of wide span truss Bridges is discussed.

通过建立斜拉桥优化模型，运用结构分析方法，结合优化算法计算实例，对大跨度斜拉桥的动力优化设计进行了初步的探讨和研究。

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Long-span spatial truss string structure is a new form of prestressed spatial structure.

大跨度张弦立体桁架结构是一种新型的预应力空间结构形式。

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Daniel Garber employs broken Impressionist brushstrokes in "The Bridge at New Hope" (1952), its steel-truss span evoking the serene industrial views of Charles Sheeler and the American Precisionists.

WSJ: Nature in America | A Landscape in Evolution | By Barrymore Laurence Scherer