在结构优化设计中，针对实际工程的倒三角形桁架结构，同时又设计了矩形桁架结构作为对比，对这两种桁架进行结构优化。
We focus on the inverted triangle truss structure in practical engineering, while a rectangular truss structure is designed as a comparison. Both of these two kinds are all analyzed.
本文介绍了三角形空间钢管桁架的应用现状，对该桁架的受力特点及结构性能进行了深入研究，为该桁架结构的进一步推广应用提供依据。
Applying actuality of the triangle space steel tube truss is introduced in this paper, and investigated a bearing force characteristic and capability. The paper also provided application results.
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