bias components are the mechanical characteristics of cross sections and two failure modes, Boundaries and determine the size of bias conditions; Familiar with eccentric compression of the second-order effect and calculation; Eccentric rectangular cross-section bearing capacity of compression members is calculated, Including the formula, the formula of the applicable conditions of reinforcement and non-symmetrical Design and reinforcement of the cross-section symmetrical cross section for review; I-shaped, T shaped eccentric compression AND CIVIL ENGINEERING Calculation method; Circular section eccentric compression member cross section design and review; Eccentric compression reinforcement of the structure and reasonable layout requirements