Non-linear analysis of fire resistance of RC compression members;

Based on the plane section assumption and the formulas of compression members with small eccentricity,the interaction diagram of ξ and the linear interpolation formula of ξ according to the calculation of rectangular section capacity with symmetrical reinforcement are presented.

The computing formula about the lateral deflection f and its corresponding coefficient η to the arbitrary cross-sections of the compressed member under different ending moments and constraint conditions are obtained.

This paper presents the math, model for optimization design of the con- crete filled steel tubular compression members, and utilizes the complex method for carrying on optimization design.

This paper introduces the functions of the system of structure diagnosing and security assessment for the metal structures of port machinery,emphasizes the principle of diagnosis for the loading capacity of compressed members with geometric imperfection,and illustrates the importance of its application to port.