Professor Xie has made outstanding contributions to the advancement of knowledge and successful applications of structural optimization techniques. Several of his ground-breaking articles and books are among the most widely cited works in the field. The techniques proposed by Professor Xie and the associated computer software developed by his research team have been used by numerous engineering firms and research institutions for design innovations in many countries around the world. Professor Xie also has a distinguished record of academic leadership at RMIT University where he has played a key role in establishing the highly successful Civil & Infrastructure Engineering programs.