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Report on 11CCEE

Shuai Hao, Master course student in EME

One of the most frightening and destructive phenomena of nature is a severe earthquake and its terrible effects. The earthquake occurred frequently especially in recent years with a great damage to infrastructure and caused a lot of casualties and loss. It captures the public's attention..

Our group, with six members including our supervisor Toshiyuki Kanakubo had been invited to attend the conference called 11th Canadian Conference on Earthquake Engineering (11CCEE) which held in Victoria, British Columbia, Canada from 21-24 July 2015

It aims to bring together practitioners, researchers and educators from around the world who are engaged in earthquake engineering. The conference theme is “Facing Seismic Risk.” It recognizes that seismic risk reduction is a multifaceted task, one that brings earthquake engineers, seismologists, social scientists, government authorities and others together to address issues that concern both new and existing infrastructure, seismology, social and economic aspects, as well as earthquake preparedness, relief efforts and post-disaster planning. The program of conference includes seismic hazard and seismology, tsunami hazards, codes and standards, geotechnical hazards, structure, societal impacts and risk management and monitoring. The 11CCEE is a catalyst to bring participants with similar interests together, stimulate interest, encourage cooperation, result in new friendships and renew the existing ones..

The photo in left side shows the Victoria Conference Center which the 11CCEE was held here. Photo in right side gives a look of my presentation at the conference. .

There are four photos show the street scenery of Victoria, Canada. It is a harmonious city attracting many foreigners to visit and shear happiness together. .

For each day, the conference begins with a professional session in a theater in the morning, after that, the six sessions begin in six difference rooms. The atmosphere of the conference is relaxed. I had presented my paper about "Local Bond-slip Behavior of Deformed Reinforcing Bar under Cyclic Loading" in this conference in the session of structure. This study was conducted by my colleague Hitomi Okazaki and me with the help of my supervisor Toshiyuki Kanakubo. In this study, focusing on the local bond behavior of deformed reinforcing bars, bond test is conducted. Use various types of originally manufactured deformed bars (different ratio of lug height to spacing) to investigate the influence of loading history and dimensions of lugs on local bond behavior. As a result, lug spacing has a large influence on the bond stress - slip curves and the slip at maximum load. For the cyclic loading specimens, the hysteretic curve can return to the one under monotonic loading until slip reached to the returnable limit slip. Bond stress drops remarkably after the returnable limit slip and it cannot return to the curve of monotonic loading. For the cyclic loading, the relationship between bond stress and cumulative slip, that considers the returnable limit slip, shows a similar tendency to bond stress - slip curve of monotonic loading specimens. It is feasible to use the monotonic loading results to evaluate the bond strength under cyclic loading.

After I finished my bachelor study in China, I went to Japan for further education. Now I am studying in the University of Tsukuba as a foreigner student. The university is located in the Tsukuba Science City about 50 km northeast of Tokyo. The city attracts more than 300 public and private institutes, universities and firms, which also attract about 20,000 researchers. The Tsukuba Express Line opened in 2005 and improved transportation to the various international conferences and other events now held frequently in Tsukuba Science City. The University of Tsukuba located in such a place is suitable for doing any researches. And also, University of Tsukuba provides many opportunities to communicate with other researchers and attend to academic conference not only in Japan but also in overseas.

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