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Slab for a commercial center underneath a landscaped public area In Tel Aviv Towers in Tel Aviv, the Company has designed the post-tensioned slab above the commercial center. Spans up to 16 meters carry heavy loads of landscaped area. A fire broke out a short time before the commercial center was scheduled to open. The fire caused spalling of the concrete cover on the tendons in a 300 square meter area. Part of the tendons broke and most of the mild reinforcement bars fell or bended. Steel rebars were hanging exposed. The company has designed the restoration of the slab to its original strength. The design and the construction were accomplished in a short time frame in order to shorten the delay in opening the commercial center. The strengthening included reconnecting and post-tensioning broken tendons. A lecture about the restoration method was given by Izhak Stern in the fib congress in Osaka, Japan, 2002. Further information at http://www.yde.co.il/Post-Tensioned-Buildings.aspx .

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Post Tensioned Buildings

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Part of the slab before placing the concrete - Tel Aviv Towers

Contributed by David Stern on September 12, 2008, at 1:49 PM UTC.

PLEASE VISIT THE CONTRIBUTOR'S WEBSITE

I. Stern - Y.D.E. Engineers, LTD Specialty in post-tensioned structures. www.yde.co.il

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This intel was contributed by David Stern David Stern

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