Yifei joined the CNERC in 2015 as a PhD student. His research interest is structural behaviour of cold-formed high strength S690 steel tubular structures. Yifei received his BEng degree in civil engineering from Tongji University in 2012, his MSc degree in civil engineering from the Hong Kong Polytechnic University in 2013, and he obtained a PhD degree from the Hong Kong Polytechnic University in 2019. He also has one-year working experience from an engineering consulting firm in Hong Kong. Currently, he is conducting experimental and numerical study on high strength steel tubular connections.