Examining the risk of flotation in structures

Year 2018, Volume: 2 Issue: 2, 80 - 85, 15.08.2018

Murat Bikçe

Abstract

Lately, an increase in the number of
floors in structures that have been built on valuable land can be noticed.
While building these structures, a retaining wall is created, which is
necessary for a safe foundation, yet this also causes the formation of a closed
pool-like area. If the excavation site during construction is filled with water
due to various reasons, basement floors, which form closed volume, may move upwards.
The same problem may also be experienced in all elements that are underground
in flood susceptible areas. Unfortunately, engineers often overlook this
potential problem while focusing on the completed structure weight. This
flotation damage should not be confused with liquefaction of ground that occurs
as a result of unexpected movements in the structure due to the loss of the
bearing capacity of the ground. The necessary calculations to avoid this risk
are only conditioned for port and coastal structures in national standards and
codes. Hence, this study aims to demonstrate the conditions leading to
flotation in structures and necessary precautions to avoid them.

Keywords

Damage, Flotation, Structure

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