CONTEMPORARY EVALUATION METHODOLOGY OF SEISMIC VULNERABILITY AND UPGRADE OF PORT FACILITIES

Abstract: 

The high seismic vulnerability of harbour quay walls and facilities became spectacularly clear in the Kobe M=7.2 earthquake (Japan, 1995). Despite the high quality of seismic design in Japan, the disaster was great. The lateral seaward displacements of the quay walls reached in places 4-5 m and the settlements 2 m. The docks and wharves became inoperable and all the facilities (cranes, reservoirs for fuels and water, buildings, pipelines etc) were damaged severely. The direct and indirect financial losses reached 150 billion dollars. Significant, although of a much smaller scale, was the harbour damage inflicted by the Lefkada M=6.5 earthquake of 2003. Massive quay walls of merely 5 m height and 5 m width suffered seaward displacements of 25 cm! These events underline the high seismic vulnerability of the port facilities and the inefficiency of the seismic design for these systems.

In addition, the seismic sensitivity of storage tanks and of critical distribution systems (of fuels and water) has been revealed in numerous recent earthquakes. Their seismic analysis constitutes an important and modern issue of seismic engineering due to the complexity of the topic. The pipeline-reservoir interaction, the liquid-reservoir interaction, the pipeline-support-soil interaction and the strength of the connections at the pipes are important issues that concern the structural sufficiency of these systems.

Hence, the necessity for the improvement of:

  • methods of analysis of the seismic behavior of various quay wall types in unfavourable soil conditions, and
  • of methods of assessing the systematic vulnerability of waterfront critical facilities such as pipelines, tanks, industrial equipment etc.

Reliable methods of such analyses for both existing and new facilities will be based on theoretical analyses and scaled experiments in the laboratories of NTUA and AUTH as well as the team of UTH. Finally, the methods and research tools will be applied to port terminals of Greece.

Project info

Acronym:
UPGRADE
Scientific Coordinator:
Gazetas George
Research Team 2 Leader:
Pitilakis Kiriazis
Research Team 3 Leader:
Dakoulas Panagiotis

Stats

I.D.:
823
Mis:
380174
Duration (months):
36
Budget:
599 955.00
Diavgeia:
ΑΔΑ: Β4139-ΕΚ4

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