抄録
In this papers, we analyse stress and deflection (strain), and behavior of buckling and vibration of spaced trussed members by finite deflection method. The basic equation of this method is simply expressed by stiffieness matrix. In the basic equation of stress and deflection (strain), we have taken up next three methods, and compared each other. 1. Non-linear equation by finite deflection method. 2. Linear equation by finite deflection method. 3. Linear equation by general method. For obtaining the basic equation of buckling and vibration by finite deflection method, we use linear method for simplification. In approaching this problem, we consider two cases, for spaced members with strain loaded and other without strain. To add, in order to afford better understanding about several basic equations, we analyse a few simple examples.