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Securing Unreinforced Masonry Parapets: Experimental Approaches at the University of Auckland

This project investigated the effectiveness of various retrofitting methods for securing unreinforced masonry (URM) parapets through dynamic testing on a shake table at the University of Auckland. Led by mentors Dmytro Dizhur and Liam Wotherspoon, with guidance from UCSD mentor Lelli Van Den Einde, the team designed and constructed a more affordable shake table to simulate seismic conditions. Experimental data collected will offer insights into both validated and industry-accepted techniques, ultimately aiming to improve the structural resilience of URM parapets.

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Securing Unreinforced Masonry Parapets: Experimental Approaches at the University of Auckland

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  1. Anthony Adams Securing of Unreinforced Masonry Parapets The University of Auckland, New Zealand Host Mentors: DmytroDizhur & Liam Wotherspoon UCSD Mentor: Lelli Van Den Einde July 24th2013

  2. Experiment Multiple two leaf parapets, secured using common retrofits of the area and experimentally validated retrofits, will be dynamically loaded on a Shake table to provide experimental data of their effectiveness in a dynamic setting. Test both experimentally validated and industry accepted retrofits for URM parapets to see which methods are the most effective. Goals

  3. Securing of URM parapets As a group we simplified the shake table design making it cheaper and easier to construct. Assisting with another On-Site test using large airbags to apply a uniform distributed load to a masonry wall. The computer model was made more accurate allowing for initial estimates of forces expected during loading and the expected parapet behavior.

  4. Next Week Test the masonry wall On-Site with the airbags. Start building the shake table at the East Campus. Continue updating the Working Model of the parapet and attach the different retrofits that we will be testing. Finish pull out testing.

  5. Bay of Islands - Kayaking

  6. Russell Birdman Festival Cool little festival. Lots of people dressed up in costumes, even the ones not jumping off the Wharf.

  7. Road trip to the west side form the Paihia TaneMahuta The lord of the forest in Maori Culture. 13.8M trunk girth!!! Top right --> Biked to Haruru Falls. Jumped around at the Arai-Te-Uru recreation reserve where the Tasman meets the HokiangaHarbour.

  8. Acknowledgements Thank you to everyone who has made this life changing experience possible! Auckland Mentors: Liam Wotherspoon, DmytroDizhur UCSD Mentor: Lelli Van Den Einde PRIME: Gabriele Wienhausen, Peter Arzberger

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