Post-Tension Parking Garage Repairs. Bringing the six-story, 500,000 square foot post-tensioned structure back into full operation with a cost-efficient, sound repair with minimal down-time was critical to the Owner. Invalid Email Address. It’s the best way to understand the unique needs of the final … Keep in mind, every situation/structure is different. This would allow expansion of a terminal building that was landlocked by runway offsets and roadways. Here’s how both processes are combined: In wall panels , vertical post-tensioning strands pass from the top of the wall to the base of the structure through plastic sleeves cast into the panel. POST-TENSIONING SYSTEMS In the U.S. and Canada, post-tensioned buildings and parking garages are typically constructed with seven-wire, 0.5-in.-diameter (12.7 mm), unbonded single-strand (monostrand) tendons. Unbonded post-tensioning (commonly used in the construction of buildings and parking structures) remains separated from the surrounding concrete except where the load is transferred at the anchors. These are mostly parking garages and mid-rise buildings erected in the 1960s and 1970s. The 18-story buildings undergr’ ound, two-level, parking garage structure was in need of repair to restore its structural integrity, protect the Today post-tensioning is becoming increasingly popular for many different use categories including parking structures, high-rise office and residential, hospitality, and podium slabs for mixed-use projects. Also, special sleeves for future tendon installation and racks for supporting the rolls of tendons while awaiting ramp forming were used. By eliminating closely spaced joints found in other construction methods, properly designed post-tensioned parking structures are virtually crack-free, maintenance free and offer great aesthetic freedom and flexibility for today's architectural designs. Built in 1964, the Baltimore Garage is a 270,000 SF split level button head post-tensioned garage located in Detroit’s New Center neighborhood. The monolithic construction inherent in post-tensioned garages helps reduce building movement from both gravity and lateral loads. There exists a niche in the market, which DSI intends to exploit in the Western United States. Post-Tension Parking Garage Repair. The number and timing of broken strands Bakota, John F. (1988). In some cases, depth reduction is an essential factor in meeting code height restrictions. Keep in mind, every situation/structure is different. I have obtained a few publications from PTI about the topic but my main question doesn't seem to be answered in them. A typical A review is made of significant features of the design, construction, and maintenance as they relate to the deterioration. The foundations consist of spread footings. The structure is made of precast concrete columns and tee beams. Whether you call them precast parking garages, parking structures, parking ramps, parkades or car parks, structured parking made of precast concrete is the leading choice for designers in the United States for speed, economy and low life cycle cost. At PT slabs in underground parking structures, however, restraint from foundation Originally post-tensioned, two-way slab framing systems were constructed with column and middle strips, similar to those used in conventionally reinforced two-way slabs. The current trend toward structural steel parking structures with a pre-stress deck evokes many design questions. Post Tensioning Repair Robinson Parking Garage. 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