The elastoplastic performances of a pure steel frame are studied by two load patterns of push-over method,and the structure s anti-seismic performances in the deformation properties and law of the plastic hinge are known.

Moment resisting frames (MRF) are typically clas-sified as"ductile","nominally ductile", and"GLD"(GravityLoad Designed).

Non-linear analysis of steel-frame with bulk inside;

Nonlinear FEM analysis of a spatial steel-frame;

Length calculation method of steel-frame and steel-truss;

Some influence factors of diaphragm effect in steel frame;

Analysis and evaluation of seismic mitigation effect on a steel frame building strengthened by dampers in Taiwan;

Hysteretic behavior study of v-type eccentrically braced steel frames under cyclic loading;

The paper discusses the test process and the way of looking for the best technology of cold work roll surface configuration in the produce process of inside magnetic shield steel and frame steel, at the same time it also illustrates the best technical parameters and its good economic benefits.