1. Ronnie & Koh Consultants Pte Ltd., 28 Sin Ming Ln., Midview City, Singapore 573972.
2. School of Engineering, RMIT Univ., Melbourne, VIC 3000, Australia (corresponding author). ORCID: .
3. Dept. of Civil Engineering, South Eastern Univ. of Sri Lanka, Oluvil 32360, Sri Lanka.
4. Professor, School of Engineering, RMIT Univ., Melbourne, VIC 3000, Australia. ORCID: