Effect of Spatial Variation of Wind Field on Failure Vulnerability of Container Crane

Abstract eng:
Sea port container cranes are highly susceptible to damage or collapse during natural disasters such as earthquake or severe windstorm. Failure of such important structures can lead to significant amount of economic loss in terms of both repair or replacement and downtime. For design of cranes most of the codes do not explicitly consider the effect of spatial variation [Shinozuka and Jan (1972)] of wind field and recommend a static analysis using the suggested mean wind speed. This study investigates the effect of spatial variation of wind field on failure of container crane. Nonlinear time history analysis is performed considering both material and geometric nonlinearity. Monte Carlo simulation is carried out to determine the response statistics of container crane [Na et al.(2009)]. A convergency test is also performed. Finally, the effect of spatial variation of wind field on failure vulnerability is presented. Considerable amount of variation in the responses for different types of wind field are observed. Also, from the results it can be concluded that the spatially varying wind field gives maximum response, whereas mean wind field gives minimum response.

• Export as: BibTeX | MARC | MARCXML | DC | EndNote | NLM | RefWorks
• Add to your basket