Update #7 (5th May 2020)

   As you may know, the deadline for the competition has already passed. However, before we formally close submissions, we want to confirm that we have received all submissions successfully.

   If you had submitted an entry into the competition, you should have received a confirmation reply from one of my e-mail addresse (trevoryeow@eri.u-tokyo.ac.jp or tyeow.work@gmail.com).

   If you have not received any confirmation e-mail, it means that I have not received it. In this case, please resend your submission to me by 23:59 (JST) this Friday (8th of May). This will be the last chance for your entry to be included in the judging process.

   If you know of anyone or any team who have submitted to the competition, please notify them to check for a confirmation email.

Update #6 (27th March 2020)

   We would like to advise all participants that, due to the effect of Covid-19, we will have limited capacity to keep our website up-to-date as this can only be done without our department's local server. Therefore, most future communication will be through e-mail updates. If you wish to be kept up-to-date, please contact trevoryeow@eri.u-tokyo.ac.jp to be added to the mailing list. Apologies for the inconvenience.

   We have updated our QnA section as well as "Supplementary Document 1" under "Supplementary Documents".

Update #5 (19th March 2020)

   Due to the outbreak of the COVID-19 virus worldwide, some participants do not have full access to resources needed to submit their predictions by the original submission date of 31st March 2020. To give participants more leeway, we have revised the submission date to 1st May 2020.

   Unfortunately, we will be unable to delay the submission date any further as various researchers involved in the project will begin publishing the data in various conferences and journal publications thereafter. However, participants who were not able to submit their predictions by the revised date are encouraged to submit their predictions and methodologies at a later date. These will not be considered for judging the top submissions, but will be useful in evaluating the accuracy of structural analysis methods and assumptions.

   Above all else, we wish for everyone to be vigilant and to remain safe and healthy during this trying period.

Update #4 (20th January 2020)

   Detailed material test results

   We have received the stress-strain relationships for concrete (in compression) and steel reinforcing. We have also received split-tensile test results for concrete. These reports and files have been uploaded to the "Supplementary Documents" page under the heading "Detailed material test results".

Update #3 (25th December)

   1) Submission process

       Participants must submit the following to trevoryeow@eri.u-tokyo.ac.jp by 31st March 2020:

         i) Team information and predictions in the provided excel spreadsheet

         ii) A report in PDF format detailing the adopted modelling approach

       Further instructions are available in the provided excel spreadsheet and on the competition website under “Submission”.

   2) Experimental results from white-noise excitations

       "These excel files are available under "Supplementary Documents"" before "It is up to the participants's own..."

       To aid participants in accounting for the influence of cracks which had already formed prior to testing, excel files have been prepared with acceleration sensor and laser sensor readings for two white-noise excitation tests. The first test (whitenoiseresults1) was performed before the 20%-scaled artificial excitation, while the second (whitenoiseresults2) was performed between the 20%-scaled and 100%-scaled artificial excitations. It is up to the participant’s own discretion how these results will be used.

   3) Detailed material test results

       We had requested and are still waiting for the detailed material test results (i.e. stress strain curves, etc). We will distribute these to all participants once we have received these.

Update #2 (16th December)

    The E-Defense shaking table test has been successfully completed! We are now in the process of finalizing details for the Blind Prediction Competition. Here are some updates on current matters:

   1) Changes to test programme and contest requirements

       We had modified the test programme as shown below. Due to these changes, contestants will now be tasked with predicting the building’s response under just two excitations; the 3rd December 1.0 scaled shaking and the 4th December 1.5 scaled shaking. Contestants are welcome to submit predictions for the other excitations which will be useful for workshop and research purposes, though this will not count towards determining the winners.

Feature Work

   2) Foundation acceleration recordings

       Unprocessed total acceleration recordings at the top surface of the central foundation beam for all excitations can be found in the following link. We will leave it up to the participant to decide how to process the acceleration recordings.



   3) Pre-test crack observations

       We had observed cracks in the hanging wall/beam and wing wall joints prior to performing any tests. As this would have an influence on the initial stiffness, we will provide participants with results from a white-noise excitation test performed just prior to applying the 1.0 scaled artificial record (there were no noticeable differences in the building's dynamic properties before/after applying the 0.2 scaled artificial record). This will be released to participants very soon.

   4) Final submission guidelines

       These are being finalized and will be announced to participants very soon.

   5) Competition prize

       The top three teams will be awarded certificates at a special session dedicated solely to this project at the 17th World Conference on Earthquake Engineering in Sendai 2020. Furthermore, a representative from each of the three teams will be required to either present a short (3-5 minutes) summary of their modelling approach, or provide powerpoint slides with sufficient information so that we can present on your behalf. On the event that no representatives are able to attend the conference, we will send the certificates to the teams via mail following the conclusion of the conference.

Update #1

   We would like to update everyone on the status of the competition:

   1) Building information

       Building information is available under "Supplementary Documents" on the competition website.

Tokyo Metropolitan Resilience Project (Theme II) Blind Prediction Competition (home page)


       We encourage participants to begin modelling the building using the provided drawings, and to contact us if there are any questions. Material test results have also be added to this page. Note that building drawings are in Japanese, though a translation guide is provided (see "Supplementary Document 2 - Building Details and Drawing Translation Guide").

   2) Test procedure/ground motion information

       The test procedure is described in "Supplementary Document 1 - Building Overview, Design Philosophy, and Contest Rules". Three tests will be performed; (i) artificial record at 100% scale, (ii) artificial record at 150% scale, and (iii) JR Takatori NS component. The scale factor for the final test will only be determined after performing the first two, and contestants will be notified of this value shortly after. The building will not be repaired so any inelastic building response and damage will accumulate with each test. The ground motions are available on the website, though more accurate shake-table recordings will be provided after the tests are performed.

   3) Submission date and process

       The submission date is tentatively scheduled for 28th February 2020. We will announce the submission process on 16th December 2019 after the tests have been completed.





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