1. Department of Civil Engineering, Faculty of Engineering, Malaya University , 50603, Kuala Lumpur, Malaysia
2. Department of Civil Engineering, University of Bung Hatta , Padang, Indonesia
3. Department of Civil Engineering, Faculty of Engineering, Malaya University and, Institute of Ocean and Earth Sciences (IOES), Malaya University , Kuala Lumpur 50603, Malaysia
4. Department of Civil Engineering, Inha University , 100 Inha-ro, Nam-gu, Incheon 402-751, Republic of Korea