He introduced and improved bridge-building machinery, special methods and advanced construction design methods.
-First, design the only bridge built entirely by welding.
-The most complicated incremental launching method Bridge in the world.
—— The opening and closing bridge built by the "flat opening method" of concrete was pioneered.
-The method of "adding arch" was first used in the reconstruction of old bridges.
● He is a world leader in the design and construction of special structures of cable-stayed bridges and segmental bridges, and has made outstanding achievements.
He published more than 100 papers and was invited to give lectures all over the world.