ICRI Webinar — Adaptive Repurposing of Unbonded, Post-Tensioned Structure

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Program Description

There is a common misconception among industry professionals that unbonded single-strand post-tensioned (PT) concrete systems cannot be modified for adaptive reuse. However, urban redevelopment trends—accelerated by the COVID-19 pandemic and sustainability concerns—are driving demand for repurposing existing structures. This presentation challenges that myth through a case study of a 36+ story PT residential building in downtown Miami, currently being converted into a hotel. The project involves removing PT floors for high-ceiling lobbies, extending slabs for amenities like pools, and creating slab openings for HVAC and MEP systems. Structural assessments, member strengthening, and strategic demolition enabled safe transformation while maintaining integrity and performance.

Learning Objectives

Through participating in this program, attendees will learn…

• Understand the basics of the unbonded Post-Tensioning (PT) structural system
• Review salient details to consider prior to upcycling/repurposing of existing PT structures,
• Analyze processes and specifications preparation for repurposing PT structures, and
• Case study review of field issues during the implementation of modifications to PT floor system

Cost

FREE

Presenter

Sivakumar (Siva) Munuswamy Ph.D., PE., MASCE PTE Systems International LLC Dr. Siva Munuswamy is Senior Vice-President at PTE Systems International, Florida, with over 40 years of experience in civil and structural engineering. A licensed Professional Engineer and expert in post-tensioned concrete, he has designed and peer-reviewed high-rise structures, investigated failures, and provided expert testimony in litigation. He serves on technical committees for ASCE, PTI, and ACI, and has published and presented extensively worldwide. Dr. Munuswamy holds a Ph.D. from Florida Atlantic University, where he also teaches Reinforced Concrete Design as an Adjunct Professor.

Continuing Education

Through participating in this webinar, attendees are eligible to receive the following continuing education units*:

• 1.0 Professional Development Hours (PDH)
• 1.0 American Institute of Architects Learning Units (AIA LU)

*Continuing education certificates (PDH & LU) are only available to individuals who have registered and logged into the webinar through their ICRI Learning Center account.

For questions regarding your continuing education credits, please contact ICRI’s Technical Director, Matthew Carter, at [email protected].

Disclaimer: the ideas expressed in this ICRI-hosted webinar are those of the speaker(s) and do not necessarily reflect the views and opinions of ICRI, its board, committees, or sponsors.