The structure formation factor S of 17 high strength toughness steels were calculated on the basis of the empirical electric theory of solids and molecules.

The structure formation factors S were calculated from 19 groups of experimental data of a new high strength toughness steels on the basis of the empirical electrionic theory of solids and molecules, and 16 groups of which selected randomly were applied to train with BP network of artificial neural networks and other three groups were used to examine.

The ageing process of high strength high fracture toughness steel G99 were studied by Mossbauer spectroscopy.

The electronic structure of austenite of high strength and high toughness steel was investigated by the recursion method in the tight binding approximation.

Computer techniques used for analysis of high-rise steel buildings in case of unusual earthquakes;

With the great increase of high-rise steel building quantity year after year,accident occurs frequently during construction process and risk assessment become more and more important.

Development situations of steel column-beam connection in high-rise steel structure;

Discussion on construction of extruded steel plate of high-rise steel structure;

Nonlinear whole-process dynamic analysis method of high-rise steel structures;