It pioneered the main girder structure of a fully welded double-deck bridge deck truss composite steel truss girder for a suspension bridge. It optimized the traffic function, saved land resources, and adopted a fully welded connection design that simplified the bridge structure and saved 10.2% of steel consumption; it invented a new type of three-dimensional intersecting weld and its construction method, improving the fatigue performance of the steel girder.

For the first time in China, a new material for suspension bridge main cable steel wire with a diameter of 6.2 mm and a tensile strength of 1960 MPa was designed and developed. It realized the domestic production of large-diameter, high-strength steel wire products for suspension bridge main cables, and at the time of completion it was the suspension bridge main cable steel wire with the best performance in the world.

It pioneered new design and construction technology for large caisson foundations in a hard plastic clay environment. It proposed a caisson structural form suitable for sinking in clay layers, studied the mechanism and method of underwater blasting of the clay layer in the blind zone of the cutting edge, and developed a cutter-suction submersible dredger, enabling the caisson to sink safely, smoothly and precisely in hard plastic clay layers.

It developed new technology for the manufacture, transportation and installation of integral segments of fully welded steel truss girders. It studied intelligent manufacturing processes for steel girders and developed the 900 t cable-mounted crane with the largest lifting capacity in China; through control measures such as dual-machine multi-point synchronous lifting, loaded adjustment, temporary connections between segments and precise ballasting, it achieved rapid and precise installation of steel girder segments.

It developed synchronous tensioning equipment and technology for cable clamp bolts, applying nut rotation angle quantitative control technology and ultrasonic axial force detection technology to accurately control the tensioning axial force of cable clamp bolts, ensuring that the axial force of the cable clamp bolts is uniform and stable and solving the engineering problem of cable clamp slippage in suspension bridges.

For the first time, an adaptive variable-parameter viscous damper was developed, realizing intelligent multi-parameter vibration control of the suspension bridge, reducing the relative displacement and velocity between the tower and girder by more than one order of magnitude, significantly reducing the wear of components such as bearings and expansion joints, and greatly extending their service life.