载荷唯一性原则及其应用

本文利用结构在载荷作用下,载荷与剪力、剪力与弯矩之间的微分关系反推出当结构一定、弯矩图一定则作用在该结构上的载荷也是唯一的原理,并利用该原理很简单地求出超静定结构的极限荷载。

Principle of Load Unicity and its Application

From the differential relations between load and shear, between shearing and bending moment,the principle is derived reversely that given a fixed structure and a fixed bending moment curve the load acted on the structure is also the unique one. On the principle the limit load on the indeterminate structure can be calculated simply.