WHY YOU & YOUR EMPLOYEES SHOULD ATTEND THIS SEMINAR

Building damage in the Canterbury and Kaikōura earthquakes has highlighted the vulnerability of precast concrete floors in earthquakes.
In response, the ReCast Floors project was undertaken to investigate the performance of precast floors under earthquake loading and to develop and test retrofit solutions.

This seminar series will provide a summary of the findings from the ReCast Floors project including proposed updates to current assessment procedures, observed behaviour from large scale testing and field investigation, and retrofit solutions.

The key design criteria for retrofits will be discussed as well as design guidance for retrofits used to address the different failure modes in both hollow-core and double tee precast units.

The ReCast Floors project was funded from the Building Research Levy, with additional support from the Earthquake Commission, the University of Canterbury, QuakeCoRE and Concrete NZ Learned Society.

THIS SEMINAR WILL COVER

• Key aspects of assessment of precast floors, including recent advances in understanding
• Floor performance observations from large scale testing and real world situations
• Performance objectives for retrofit of precast floors
• Overview of retrofit techniques for precast floors
• Issues with existing retrofits
• Detailed discussion of:
  • Supplementary seating
  • Strongback retrofit
  • Cable catch system
  • Retrofits for double tee floors

OTHER BENEFITS

• Comprehensive resources provided through the seminar notes
• Knowledgeable experienced speakers with good platform skills
• The opportunity to network with industry peers

WHO SHOULD ATTEND
Structural Engineers, Graduate Engineers, Designers, Specifiers, Building Certifiers, Building Officials, and Contractors

INVESTMENT DETAILS

• Concrete NZ members - $525 (GST exclusive) per person
• Non Concrete NZ members - $625 (GST exclusive) per person (includes complimentary CNZ-LS membership until 30 June 2024)

SEMINAR FEES INCLUDE

• Tea and coffee on arrival
• Lunch
• Afternoon tea
• Comprehensive seminar notes

PROGRAMME

10.00 – 10.30 am Registration

10.30 – 10.40 am Introduction

Session 1 | 10.40 am - 12.00 pm
Assessment and floor performance - Nic Brooke, Frank Büker and Lucas Hogan

• Assessment of precast concrete floors
• Laboratory super-assemblies – floor performance observations
• Real world performance observations
• Recent advances in understanding of floor behaviour

12.00 – 12.50 pm Lunch

Session 2 | 12.50 - 1.35 pm
Retrofit philosophies and existing retrofits – Nic Brooke

• Retrofit performance objectives and philosophies
• Summary of retrofit techniques
• Issues with existing retrofits

Session 3 | 1.35 – 3.00 pm
Retrofit design guidance – Part 1 – Frank Büker

• Supplementary seating for hollow-core floors
• Strong back retrofit

3.00 – 3.30 pm Afternoon Tea

Session 4 | 3:30 - 4:30 pm
Retrofit design guidance – Part 2 - Lucas Hogan

• Cable catch system
• Retrofits for double tree floors

SPEAKERS PROFILES

Lucas Hogan - Courtesy of University of Auckland
Lucas is a Senior Lecturer in Structural Engineering at the University of Auckland. He was a key researcher on the ReCast Floors project, helping to guide the experimental work and lead field inspections of damaged hollow-core buildings, which led to the proposed changes to NZ Building Code B1/VM1 with respect to the structural stability of hollow-core floors. His research focuses on the seismic response of buildings, bridges and pile foundations.

Nic Brooke - Courtesy of University of Auckland
Nic is a consulting engineer and Manager Director at Compusoft Engineering. Nic is widely involved in the structural engineering community as President of the Structural Engineering Society New Zealand (SESOC) and past President of the Concrete NZ Learned Society. He was a core member of the ReCast Floors project, and has extensive experience in inspection, assessment, and retrofit of precast concrete floors.

Frank Büker - Courtesy of Concrete NZ
Frank is a PhD candidate at the University of Auckland. His research focuses on the seismic performance and retrofit of hollow-core floors. Frank has designed and tested multiple hollow-core floor retrofits for the ReCast Floors project. He is the lead author of the updated hollow-core worked example and is involved in various industry-related projects.

REGISTRATION

Download the seminar brochure to reserve your seat. You can register online or fill out the registration from and email to jenna@concretenz.org.nz

For all enquiries phone (027) 308 7774.