DC80.2-10: Guide for Creating Openings and Penetrations in Existing Slabs with Unbonded PT

Your Price:$ 15.50 USD

Member Price: $ 10.85 USD

Choose Product Language

Choose Product Units

Choose Product Format


The purpose of this document is to demonstrate that making openings in existing post-tensioned slabs is not only possible but is routinely performed in retrofit projects. The document describes a comprehensive process that can be used to create openings in post-tensioned slab systems constructed with unbonded single-strand tendons. Included is a discussion of the required structural analysis as well as construction methods and procedures used to create openings. An actual project’s case study illustrates the process. Many illustrations provide additional support in understanding of the subject matter.

10 pages; 8½ x 11 in. (soft cover)

Published July 2010


Table of Contents

Table of Contents



3.0—Small penetrations and openings

4.0—Large openings

5.0—Slab strengthening options

6.0—Work procedure

7.0—Case study: BWI Airport slab openings

8.0—Designing PT slabs with flexibility in mind

8.1—Spacing of uniform tendons

8.2—Using knock-out panels

8.3—Marking tendon locations




Any applicable addenda or errata are included with individual documents at the time of purchase. For a listing of and access to all product addenda and errata, visit the Addenda and Errata page. Errata page.

Return/Exchange Policy

Printed / Hard Copy Products: If your order is damaged, defective, or incorrect, we acccept its return without question within 30 days of purchase. Returns shipped COD are not accepted. University bookstores and other resellers must receive authorization from PTI to return books in resaleable condition. Authorized returns in resaleable condition are subject to 15% restocking fee.

Electronic /Downloaded Products & Online Learning Courses: These items are not eligible for return.