Lincoln University Waimarie building: A Case study for next level low damage design with self-centring friction connections

Presentation

When – 23rd May 2023

Where – Building 401-401, 20 Symonds Street (University of Auckland Faculty of Engineering). Access from Symonds Street (Refer City Campus Map Link).

Agenda –
17:30 pre-presentation refreshments
18:00 presentation

Please register for this presentation below:

Abstract

The experience from Christchurch and Kaikōura seismic events demonstrated that the ‘life safety’ criterion, on its own, is not sufficient to protect the community from earthquake impact. Nowadays, the community expects more and expects measures taken to protect not only lives but also assets and maintain business continuity. The structural engineering community of New Zealand has moved accordingly and started to incorporate low-damage concepts in the seismic design of structures. There have been many examples of implementing one or a few aspects of low-damage design in buildings, but is this enough? The latest research shows that a structural system can only be resilient when different aspects of low-damage design are considered and addressed (e.g. performance of the system as a whole). The Lincoln University project is a new flagship science building, named Waimarie (bountiful lakes). The project comprises a Teaching Building and Research Building. This presentation showcases this project as a case study where innovation made low-damage design possible. It presents the design concept, challenges, and outcomes. The lateral system for the Research Building included non-post tensioned rocking concrete shear walls (with innovative hold-downs) and resilient diagonal steel braces. The presentation discusses the methods used for analysis and design, highlights the superior performance of the rocking concrete walls used and presents the innovative bracing system implemented. As a case study that has incorporated aspects of low damage design, this project will be of interest for those excited about resilient buildings and can lead the way towards having a seismic resilient built environment.

Biography

Ashkan holds a PhD in structural engineering from the University of Auckland. He has more than 20 years of experience in the construction industry in different roles, such as site engineer, structural engineer, technical director, research fellow and lecturer. He has been actively involved with implementation, teaching and research of low damage design methods in the last decade.

Campus Location Map

Click Here For Map