1. Structural performance improvement, new materials and structural systems. Specifically, it includes:

(1) Steel structure damage detection based on machine vision

(2) Fiber reinforced polymer (FRP) and shape memory alloy (SMA) reinforcement systems

(3) Improvement of fatigue performance of steel structures

2. Infrastructure resilience assessment and improvement. Specifically, it includes:

(1) Concrete damage detection based on machine vision

(2) Multi hazard coupling effect and structural responses under its action