1. Assistant Professor, Dept. of Civil Engineering, The Univ. of Hong Kong, Pokfulam, Hong Kong, China; formerly, Reader, School of Architecture, Design and Environment, Univ. of Plymouth, Plymouth, Devon PL4 8AA, UK (corresponding author).
2. Professor, Dept. of Civil and Building Engineering, Loughborough Univ., Loughborough, LE11 3TU, UK.