Seismic Site Characterization and Liquefaction Susceptibility Assesment of Dhaka City Using Latest Building Code and Updated Liquefaction Evaluation Techniques

Abstract

Abstract Integration of regional code-based provisions and updated analytical techniques is a must in the field of seismic site characterization and liquefaction susceptibility assessment. Mapping seismic site class and liquefaction susceptible zones due to earthquake induced loading under the research will not only facilitate governing authorities and policy makers to make land-use developmental plans according to characteristics of each classified zone but, will also help engineers and researchers to carry out feasibility study of projects and designs as well as research activities according to potential risk factor in different areas of Dhaka City. The study also supplements the newly published Bangladesh National Building Code (2020) and provides guidelines according to the code to conduct engineering studies as per recommended seismic site class and liquefaction susceptibility for design considerations following the newly published mandates. The research is also a part of development of geotechnical database and earthquake catalog of Dhaka City with an aim to update the geological information due to unbridled expansion of the city boundary where areas are being filled with dredged sand to get more land coverage for infrastructural developmental activities.