The provided assignment is a collection of research papers on building information modeling (BIM) and construction techniques. The documents cover various topics such as the social and cultural construction of risk, BIM database construction based on IFC standard, automatic safety checking of construction models and schedules, and applications in metro construction. Additionally, it includes case studies on bridge construction techniques, low-carbon construction processes, and Enantioselective Construction of Vicinal Tetrasubstituted Stereocenters by the Mannich Reaction of Silyl Ketene Imine with Isatin-Derived Ketimines.