Abstract:
An iconic building linking Bangladesh's southwest to its northern and eastern
areas is the Padma bridge, which spans the third-largest river in the world with
a complicated topology. By boosting production, employment, transportation,
and the national and regional economy, this multipurpose bridge is projected to
boost GDP growth by 1.2%. This study's primary goal is to pinpoint the greatest
challenges encountered during Padma Bridge's construction and explain how
sustainable management procedures might be put in place to address such
difficulties. The most challenging tasks included finding a suitable site, dealing
with complex river morphology, overcoming geotechnical barriers, controlling
unfavorable environmental conditions, assembling massive construction
equipment and materials, maintaining the construction schedule, and dealing
with the COVID epidemic. To resolve these construction challenges, massive
river training works and a unique pile foundation design that consists of six
floating heaps and one center pile with the largest raking pile in the center were
both utilized. To get around the difficulties in superstructural design, longer
pre-assembled steel truss girders, pre-tensioned Super-T girders in viaducts,
seismic isolation devices, and the largest friction pendulum bearings in the
world were all made. Only a small number of people experienced COVID-19
without any fatalities or causing delays in the construction schedule since the
Project was kept operational during the COVID-19 period by tightly enforcing
the COVID laws and limits on people's mobility. The field of construction
management would undergo a paradigm shift with this sustainable
management of construction-related difficulties, which might later be used to
design more intricate bridges.
