Seismic Behavior of Container Cranes

Sponsors: National Science Foundation NEESR-GC
Students: Laura Jacobs
Container cranes are used to unload ships in ports and are critical to port operations.  Past earthquakes have highlighted the vulnerability of container cranes to damage from even moderate earthquakes.  At the Port of Kobe during the earthquake that hit in 1995, a considerable fraction of the container cranes either collapsed or were too damaged to be used again, leading to...

Seismic Behavior of Wharves

Sponsors: national Science Foundation NEESR-GC
Students: Abdollah Shafieezadeh
Earthquakes pose a significant threat to many large U.S. seaports which serve as critical gateways for international trade. Considering the fact that disruption in port activities may lead to significant direct and indirect losses, seismic performance evaluation and retrofit of ports is quite essential. Current engineering practice for seismic risk reduction for port facilities is typically...

Machine Vision Enhanced Post Earthquake Inspection

Sponsors: National Science Foundation CMMI
Students: Stephanie German, and Jong-Su Jeon
The objective of this work is to validate an automated framework for assessing the damage state and associated repair cost of inspected structures, based upon component condition information. Currently, post-earthquake inspection is performed by teams comprising licensed inspectors and/or structural engineers. Mobilizing structural inspectors and assessing the safety of buildings after...

Enhancements to Caltrans Bridge Fragility Relationships for Regional Seismic Risk Assessment in California

Sponsors: California Department of Transportation
Students: Jazalyn Dukes, and Karthik Ramanathan
Bridge seismic fragility relationships are statistical functions that describe the probability of exceeding a specific damage threshold as a function of shaking intensity. They are a fundamental building block used in multiple (current and potential future) applications of interest to Caltrans including emergency response, design support using performance based earthquake engineering, planning...

Innovative Seismic Retrofits for Resilient and Sustainable Reinforced Concrete Buildings

Sponsors: National Science Foundation NEESR-CR Program
Students: Tim Wright, and Niki Fanarouki
Partner Schools: Rice University and Howard University
The proposed project brings together a diverse group of experts from civil engineering, materials science, sensing and damage detection, risk analysis, and seismic design.  This team will evaluate the efficacy of a new class of innovative systems with recentering and/or high damping capabilities, and will develop a framework for their design and implementation to retrofit reinforced...

SMA-Enhanced Smart Expansion Joint

Sponsors: TRB IDEA Program
Students: Reza Mirzaeifar, and Emily McCarthy
Bridge expansion joints have been problematic to designers for many years, and costly to bridge owners due to maintenance or replacement required.  Component fatigue under service loads, and inability to accommodate large displacements imposed by earthquake or hurricane-induced storm surge loads have left the bridge community searching for improvements to conventional joints.  The...

Testing and Analysis of Shape Memory Alloys

Students: Reza Mirzaeifar
Considerable increase in the use of shape memory alloys (SMAs) for introducing novel devices in a vast range of applications in recent years reveals the potential of SMAs to revolutionize many products in various applications including biomechanics, aerospace, mechanical and civil engineering. Extensive interest in using SMAs for manufacturing devices is mostly due to their unique ability in...

Recycling of Debris from 2010 Haiti Earthquake

Sponsors: National Science Foundation Rapids Program
Researchers: Kim Kurtis, and Reginald DesRoches
Nearly one year after a 7.0-magnitude earthquake rocked the Republic of Haiti, engineering and concrete experts at Georgia Tech report that concrete and other debris in Port-au-Prince could be safely and inexpensively recycled into strong new construction material. In a paper published today in the Bulletin of the American Ceramic Society, researchers Reginald DesRoches, Kimberly E. Kurtis...