Analysis is made on the structure of the space truss compound girder made from steel pipe concrete, and given directly the potential development.

介绍了钢管砼空间桁架组合梁式结构型式，通过分析它的受力特点，大胆预测了这种新型结构型式的广阔发展前景。

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Then, the compound method is used to assess the hull girder ultimate strength reliability of a bulk carrier subjected to extreme bending moments.

最后，基于极限强度，将该组合方法用于评估散货船在极值弯矩作用下的船体梁安全性。

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The box transfer story can be simplified into wall model of common girt strip, beam model of common girt strip and open-frame girder model of compound beam according to different project situations.

根据工程情况不同，可将箱形转换层简化为普通肋梁墙模型、普通肋梁梁模型和组合梁的空腹桁架模型。

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