对称受拉杆系的荷载—位移关系分析

Study on the load-displacement relationship of the symmetrical rod-systems under tension loading

对称受拉杆系的轴力及结点位移计算方法都存在一定的局限性,而通过建立荷载—结点位移函数关系式,可解决瞬变体系结点位移计算问题,同时提出了超静定结构的各杆轴力比值公式,为结构优化设计提供了理论依据。

Limitations still exist in the present computational methods of the axial force and the node displacement in the axial-symmetric bar systems. The computational problem of the node displacement in the instantaneously changeable system can be actually solved by founding a loadnode displacement function relationship. At the same time, a ratio formula presented for the axial force of each rod piece in statically indeterminate structure can provide theoretical basis for optimum structural design.