The modes of structural optimum design of plane frames are established based on the component reliability.

The shear forces and the bending moments of the plane frame are computed,and the shear and the moment diagrams are constructed,making use of the relations among the intensity of load,the shear force and the bending moment,and the relations between the load and the internal force at the boundary.

Taking the sectional area and the bending moment of inertia as variables for each beam element, the plane frame will possess a stiffness matrix containing parameters.

Analying elastic yield of plane rigid frame;

Plastic optimization design of plane rigid frame via genetic algothms(GA);

In this paper, formulations of support variations for the plane frame structures are presented by using Moors-Penrose inverse theory.

In this paper,the arrangement of the structure system and the design of lattice plane frame and foundation of a museum is presented with the features of a assembled building.

This paper has carry on detailed analysis to structure characteristic and receive strength performance of plane portal frame, and has discussed relevant problems of working out plane portal frame software design.