深梁杆件力学解

SOLUTION OF DEEP BEAMS BASED ON MECHANICS OF BAR SYSTEM

深梁是工程中常遇到的结构构件之一,如浅仓中的仓壁等。由于深梁受力复杂,平截面假定在此已不适用,过去用三角级数或用差分法求解;在有限元法推广应用后,则往往用有限元法求解,但结构的受力机理并不能从这些数学运算中较清楚地看出。本文用杆件力学方法求解,不但受力概念清楚,也易为工程技术人员所掌握运用。

Deep beam is one of the structural members used frequently in engineering, such as the walls of bunker,etc, Because the stresses in deep beams are complicate,in the past,they were solved by using triangular series, finite-difference method, or the recent finite-element method.But the mechanical mechanism of deep beams can not be clearly identified from these numerical approaches. In this paper, the solution based on the mechanics of bar system is given .It is not only easy to get a global picture of the stress, but also convenient to be used by engineers.