Dynamic performance of timber diaphragms in the 1903 Nathan House

Aaron Wilson, Claudio Oyarzo-Vera, Piotr Omenzetter, Nawawi Chouw, Jason Ingham

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)

Abstract

The flexibility of timber diaphragms in unreinforced masonry buildings has been reported to have a significant effect on the seismic performance of the complete structure. The current absence of New Zealand specific data has resulted in practitioners adopting assessment guides developed overseas to assist in seismic assessment and the design of seismic retrofit solutions. To address this issue a series of modal tests were conducted on the third floor timber diaphragm in Nathan Building located in Auckland’s Britomart Precinct, which is a building typical of New Zealand historic unreinforced masonry construction. Preliminary analysis indicates that the fundamental horizontal natural frequency occurs at 20.5 Hz which reasonably matches the finite element model, which predicted a frequency of 18.49 Hz. Further testing, system identification and finite element updating is intended to be conducted to refine these preliminary results.
Original languageEnglish
Title of host publicationProceedings of the New Zealand Society for Earthquake Engineering Annual Conference 2008
PublisherNew Zealand Society for Earthquake Engineering Inc.
Number of pages8
DOIs
Publication statusPublished - 30 Apr 2008

Fingerprint

Timber
Diaphragms
Masonry construction
Natural frequencies
Identification (control systems)
Testing

Cite this

Wilson, A., Oyarzo-Vera, C., Omenzetter, P., Chouw, N., & Ingham, J. (2008). Dynamic performance of timber diaphragms in the 1903 Nathan House. In Proceedings of the New Zealand Society for Earthquake Engineering Annual Conference 2008 [5] New Zealand Society for Earthquake Engineering Inc.. https://doi.org/10.13140/2.1.4214.4327

Dynamic performance of timber diaphragms in the 1903 Nathan House. / Wilson, Aaron; Oyarzo-Vera, Claudio; Omenzetter, Piotr; Chouw, Nawawi; Ingham, Jason.

Proceedings of the New Zealand Society for Earthquake Engineering Annual Conference 2008. New Zealand Society for Earthquake Engineering Inc., 2008. 5.

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)

Wilson, A, Oyarzo-Vera, C, Omenzetter, P, Chouw, N & Ingham, J 2008, Dynamic performance of timber diaphragms in the 1903 Nathan House. in Proceedings of the New Zealand Society for Earthquake Engineering Annual Conference 2008., 5, New Zealand Society for Earthquake Engineering Inc. https://doi.org/10.13140/2.1.4214.4327
Wilson A, Oyarzo-Vera C, Omenzetter P, Chouw N, Ingham J. Dynamic performance of timber diaphragms in the 1903 Nathan House. In Proceedings of the New Zealand Society for Earthquake Engineering Annual Conference 2008. New Zealand Society for Earthquake Engineering Inc. 2008. 5 https://doi.org/10.13140/2.1.4214.4327
Wilson, Aaron ; Oyarzo-Vera, Claudio ; Omenzetter, Piotr ; Chouw, Nawawi ; Ingham, Jason. / Dynamic performance of timber diaphragms in the 1903 Nathan House. Proceedings of the New Zealand Society for Earthquake Engineering Annual Conference 2008. New Zealand Society for Earthquake Engineering Inc., 2008.
@inbook{b949d8741f2b4e0da8b88aaa51252fb8,
title = "Dynamic performance of timber diaphragms in the 1903 Nathan House",
abstract = "The flexibility of timber diaphragms in unreinforced masonry buildings has been reported to have a significant effect on the seismic performance of the complete structure. The current absence of New Zealand specific data has resulted in practitioners adopting assessment guides developed overseas to assist in seismic assessment and the design of seismic retrofit solutions. To address this issue a series of modal tests were conducted on the third floor timber diaphragm in Nathan Building located in Auckland’s Britomart Precinct, which is a building typical of New Zealand historic unreinforced masonry construction. Preliminary analysis indicates that the fundamental horizontal natural frequency occurs at 20.5 Hz which reasonably matches the finite element model, which predicted a frequency of 18.49 Hz. Further testing, system identification and finite element updating is intended to be conducted to refine these preliminary results.",
author = "Aaron Wilson and Claudio Oyarzo-Vera and Piotr Omenzetter and Nawawi Chouw and Jason Ingham",
year = "2008",
month = "4",
day = "30",
doi = "10.13140/2.1.4214.4327",
language = "English",
booktitle = "Proceedings of the New Zealand Society for Earthquake Engineering Annual Conference 2008",
publisher = "New Zealand Society for Earthquake Engineering Inc.",

}

TY - CHAP

T1 - Dynamic performance of timber diaphragms in the 1903 Nathan House

AU - Wilson, Aaron

AU - Oyarzo-Vera, Claudio

AU - Omenzetter, Piotr

AU - Chouw, Nawawi

AU - Ingham, Jason

PY - 2008/4/30

Y1 - 2008/4/30

N2 - The flexibility of timber diaphragms in unreinforced masonry buildings has been reported to have a significant effect on the seismic performance of the complete structure. The current absence of New Zealand specific data has resulted in practitioners adopting assessment guides developed overseas to assist in seismic assessment and the design of seismic retrofit solutions. To address this issue a series of modal tests were conducted on the third floor timber diaphragm in Nathan Building located in Auckland’s Britomart Precinct, which is a building typical of New Zealand historic unreinforced masonry construction. Preliminary analysis indicates that the fundamental horizontal natural frequency occurs at 20.5 Hz which reasonably matches the finite element model, which predicted a frequency of 18.49 Hz. Further testing, system identification and finite element updating is intended to be conducted to refine these preliminary results.

AB - The flexibility of timber diaphragms in unreinforced masonry buildings has been reported to have a significant effect on the seismic performance of the complete structure. The current absence of New Zealand specific data has resulted in practitioners adopting assessment guides developed overseas to assist in seismic assessment and the design of seismic retrofit solutions. To address this issue a series of modal tests were conducted on the third floor timber diaphragm in Nathan Building located in Auckland’s Britomart Precinct, which is a building typical of New Zealand historic unreinforced masonry construction. Preliminary analysis indicates that the fundamental horizontal natural frequency occurs at 20.5 Hz which reasonably matches the finite element model, which predicted a frequency of 18.49 Hz. Further testing, system identification and finite element updating is intended to be conducted to refine these preliminary results.

U2 - 10.13140/2.1.4214.4327

DO - 10.13140/2.1.4214.4327

M3 - Chapter (peer-reviewed)

BT - Proceedings of the New Zealand Society for Earthquake Engineering Annual Conference 2008

PB - New Zealand Society for Earthquake Engineering Inc.

ER -