2008 BLIND ANALYSIS CONTEST BY E-DEFENSE
| The E-Defense steel research team (Leader: Kazuhiko
Kasai, Tokyo Institute of Technology) has been testing
various full-scale steel frames using the world’s largest
three-dimensional shaking table located at Miki City,
Hyogo Prefecture, Japan. The team is pleased to announce the 2008 blind analysis contest for a full-scale 5-story steel building, which will use Japanese steel dampers in the first test, and American viscous dampers in the second one. Tests using Japanese oil dampers, viscoelastic dampers, and no dampers, respectively, will also be performed subsequently, but will not be considered for the contest. The contest is the follow-up of the 2007 Blind Analysis Contest for a full-scale 4-story conventional steel frame that was shaken to collapse, by applying an intense near-fault ground motions recorded during the 1995 Kobe earthquake. The same records will be used in order to contrast the performance of the damped frame against the collapsed conventional frame.The purpose is to assess how well current engineering analysis can simulate actual behaviors. Each participant should predict the responses before and after the test, and the closest predictions to the test results will be awarded. Because the actual loadings will be determined during the course of the testing based on observed response, the contest has two parts: pre-test analysis based on anticipated earthquake loadings, and post-test analysis using the actual loadings. The building analytical model for the post-test analysis must be identical with that for the pre-test analysis. The contest is categorized by the combination of damper type and analysis type. Two types of dampers and two types analysis methods, 3D- and 2D-analyses, will be considered. Thus, four winners, one from each category, will be recognized. While names and affiliations of all participating teams will be identified, results will be presented anonymously (unlabeled) except for those of the winners. It is planned that the winners be invited to and honored at the 7th International Conference on Urban Earthquake Engineering, 2010, held by the Center for Urban Earthquake Engineering (CUEE), Tokyo Institute of Technology, Japan. The winners’ travel expenses and accommodations will be covered by the contest sponsor. Due dates for submitting results of pre-test analysis and post-test analysis are mid-February and mid-April, respectively. Details of contest rules and building data will be posted on the E-Defense web-site during December (http://www.blind-analysis.jp/index_e.html). |
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Important Dates (dead lines 9:00am JST; JST is GMT +9:00)
| December 5, 2008 | ： | Distribution of schedule of the contest, specification of structural components and basic material properties | |
| February 15, 2009 | ： | Deadline of registration | |
| March 2 | ： | Submission of pre-test analysis results by participants | |
| March 5 | ： | Shaking-table test with steel damper at E-Defense | |
| March 12 | ： | Shaking-table test with viscous damper at E-Defense | |
| May 14 | ： | Distribution of acceleration for post-test analysis | |
| June 30 | ： | Submission of post-test analysis results by participants | |
| September 30 | ： | Announcement of the winners |
Executive Committee of the E-Defense Steel Building Project
| Chairman | ： | Kazuhiko Kasai (Tokyo Institute of Technology) |
| Contest Organizer | ： | Makoto Ohsaki (Kyoto University) |
| Leader, Damper and Isolation System WG | ： | Kazuhiko Kasai (Tokyo Institute of Technology) |
| Members of the Contest Committee | ： | Shojiro Motoyui (Tokyo Institute of Technology), Hiroshi Ito (Tokyo Institute of Technology), Kensaku Kaneko (Obayashi Corporation), Masato Ishii (Nikken Sekkei Ltd), Tatsuhiko Ine (NIED), Tsuyoshi Hikino (NIED) |
Method of Judgment
Please click the button below to see "Method of judgment" and other detailed. (PDF:57KB)
