However, for the eccentrically loaded long columns, initial stress will make its ultimate load-carrying capacity decrease in a nonlinear tendency downwards, and the maximum descend is about 20%.

• 对于偏压长柱，稳定极限承载力随着初应力增大呈非线性下降趋势，最大下降幅度可达20%25，同时稳定极限荷载所对应的挠度也相应增大。