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About this event
This session is part of the Seismic Retrofit Strategies for Existing Structures webinar series, a technical series spotlighting seismic retrofit design challenges across URM and precast systems jointly hosted by ClearCalcs and PYTHON Fasteners.
In this webinar, join ClearCalcs Head of Engineering Content, Laurent Gérin, in conversation with Robert Hudson, PYTHON Fasteners VP of Engineering, on Tuesday, September 23, 2025 from 10 am to 11 am New Zealand Time (NZT) to examine the complex issue of anchoring services and bracing to hollowcore floors in retrofit scenarios.
Drawing from experimental research and current design practice, the session will address how different anchorage approaches perform under seismic loads, clarify the use of C2 capacities, and offer practical recommendations for achieving safe, code-compliant, and constructible retrofit designs.
Ideal for structural engineers, peer reviewers, and retrofit consultants working on commercial and institutional buildings with precast flooring systems.
All registered attendees will receive a recording of the webinar after the event.
In this webinar, we will cover:
- Summary of current state of hollowcore retrofit requirements in NZ.
- Experimental research investigating the use of mechanical anchors as supplementary shear reinforcement for hollowcore floor units.
- Anchorage techniques for hollowcore floors, benefits and limitations.
- "C2 Capacities" - Use and applicability in the context of anchorage to hollowcore floors for seismic retrofit and services connections.
The session will help engineers make informed choices around service anchorages and seismic bracing strategies in hollowcore systems.
Register for the Webinar
Fill in the form below to register for this webinar. You will receive a confirmation by email
Your Speakers
Specializing in seismic assessment and strengthening of existing structures, Robert manages research, development, codes and approvals for PYTHON across Australasia and North America. Involved with the development of International Code Committee (ICC) acceptance criteria, The Existing Masonry Standards Committee, TMS anchor task group, and full scale structural testing of retrofit systems, Robert is able to provide insight into the most recent updates in this space.
Laurent is an experienced structural engineer passionate about all things structural engineering and applying theory, whether in groundbreaking new software or designing innovative new bridges out of aluminum.
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