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我院曾对棱柱形钢架壳体的理论作了一些研究,并试制及试验成功了一个9.6×7.2M的小型棱柱形钢筋混凝土纲架壳体。通过实践证明,棱柱形纲架与棱柱形实体薄壳的内力分布的规律大致相同。因此,将苏联B.3.伏拉索失教授所首创的稜壳计算公式略作修正, 即可迅速求得纲架纵向肋的轴向力和环向肋的弯矩,从而可用初等建筑力学求得其它杆件的内力和位移,使过去计算十分麻烦的钢架结构得到了实用的计算捷径。此外,本文还提到了装配式钢筋混凝土钢架的主要优点,它将成为今后推广空间结构的主要结构形式之一。我们对纲架结构研究工作做的不多,时间也不长,可能有欠妥之处,请各有关单位多多提出宝贵意见,使棱柱形纲架结构在设计与施工方面得到进一步的改进,为今后空问结构的应用创连更有利的条件。
Our institute has made some researches on the theory of prismatic steel frame shells, and trial-produced and tested successfully a small prismatic reinforced concrete frame shell of 9.6×7.2M. It has been proved through practice that the distribution of the internal forces of a prismatic frame and a prismatic solid shell is roughly the same. Therefore, by slightly modifying the formula for calculating the prismatic shells pioneered by the Soviet Union’s B.3. Vranso professor, the axial force of the longitudinal ribs of the frame and the bending moment of the circumferential ribs can be quickly obtained, thus making it possible to use elementary building mechanics. Obtaining the internal forces and displacements of other rods has enabled practical calculation shortcuts for steel structures that have been computationally intractable in the past. In addition, this article also mentioned the main advantages of prefabricated reinforced concrete steel frames, which will become one of the main structural forms for promoting space structures in the future. We have done very little research on the framework structure, and the time is not long. It may be flawed. All relevant units are invited to put forward valuable suggestions to further improve the design and construction of the prismatic framework structure. The future application of spatial structures will create even more favorable conditions.