trusses

After comparing reinforced compositions with the theory of monolayer cylindrical net shell and reviewing the stability theory of thin shell, the paper proves how longitudinal and lateral trusses improve the stability of unitized roof from the composition and conception of the structure. 2.

在比较了单层柱面网壳的加固并回顾薄壳稳定理论后，从体系组成及概念上论证了增设桁架的加固方案如何提高了组合结构的稳定性能。

Moreover, it is the floor that makes the two neighboring trusses work together, and the horizontal shear forces are transferred by the tension field within it.

同时试验现象也表明，楼板在协调相邻两榀桁架共同工作时起了重要的作用，其水平剪力在楼板中的传递是通过楼板中的拉力场来实现。

In this paper, the tangent stiffness matrices and the secant stiffness matrices of space trusses are derived with the energy principle in the Total Lagrangian coordinates.

本文在T.L.坐标下，利用能量原理，同时导出了空间杆元精确的割线刚度矩阵和切线刚度矩阵显式。