(2) The major arc transition and penetration weld are adopted between the joints plate of cross beam flange and chord with the I weld quality,and the weld edge must be hammered to satisfy the requirement of anti-fatigue performance of weld.

The welding quality of T-type weld in up flange of crane beam and quality controlling;

Research of design theory for flange plate of comb-type caisson;

The equipments features,technology process and control system are analyzed for the production of hot-rolled narrow strip and flange plate in a same 355 mm hot-rolled narrow strip production line.

In this paper,a theoretical analysis for the local buckling of the flange plate of the partially encased concrete columns subjected to H-shape steel axis force was presented.

This paper researches the stress distribution on flange slab of prestressed concrete tee beam bridge under the prestressing force,obtains the change laws of maximum and minimum principal stresses of flange slab in the effect of prestressing force,and advances the safety countermeasures for flange slab.

The paper introduced the application of box beam flange slab casting form for special passenger line.