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The Building Envelope – A Little-Known Key to Energy Efficiency
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Quorum Magazine, October 2008
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Energy efficiency is one of the most pressing concerns for today's property owners. Municipalities are increasingly regulating the energy efficiency of buildings, and owners are becoming more aware of their responsibilities to reduce their buildings' energy consumption. As a result, many property owners are scrambling to do whatever they can to make their buildings more efficient. In the mad rush of updating and making changes, many fail to realize a building system that can have a huge impact on a building's energy efficiency. The building envelope plays a critical role, as it forms the barrier between a building's interior and exterior environments. And with proper management, the building envelope can significantly slash a building's energy demand.
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Christ Church Harbor Apartments/University Specialty Hospital Plaza Deck Repair
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Concrete Repair Bulletin, September/October 2008
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Originally constructed approximately 30 years ago, time had taken its toll on this 30,000 square foot, multi-level plaza deck. Most of the exposed aggregate concrete topping on all three levels had deteriorated. Due to sections of failed waterproofing, water was migrating through the concrete topping and leaking into the occupied parking garage located below most of the plaza deck. In order to achieve the optimum repair solution, owners coordinated their efforts to engage a qualified engineer and repair contractor to repair the plaza deck, fountain and planter box, prevent future leaks and update and modernize the overall appearance of the area so that tenants and visitors could once again enjoy the plaza.
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Plaza Deck Restoration at 300 Winston Towers
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Concrete Construction Online, September 2008
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Located along the western banks of the Hudson River in Cliffside Park, N.J., 300 Winston Towers is a popular residential building with approximately 600 units. Over the years, pooling water on the entrance plaza had leaked into the parking garage below, leading not only to the deterioration of the entrance plaza structural slab, but also to spalling of some of the concrete beams and columns in the garage. The solution came in the form of a waterproofing membrane.
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Strategies for Infrastructure Reliability
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Hydrocarbon Engineering, September 2008
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Being proactive in the understanding of your refineries infrastructure needs may not make you money, but it sure can improve safety and save you money.
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Hyperbolic Cooling Tower Column and Lintel Beam Protection
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The Construction Specifier, September 2008
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Used in large power generation plants, hyperbolic natural draft cooling towers are extremely susceptible to corrosion-induced deterioration. Due to the unique water cooling process, practically all surfaces in the basin are subject to “immersion” conditions. The columns and lintels are in a “splash zone” environment subject to intermittent wet and dry conditions. Construction of new hyperbolic natural draft cooling towers, however, represents a large capital investment so maintaining existing towers is crucial.
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The Foundations of Compressor Foundation Maintenance
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Compressor Tech Two, August 2008
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Compressor foundations, some more than 50 years old, are often neglected. However, they need vital maintenance if they are to perform satisfactorily.
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Efficient Floor Framing Systems: Preliminary Sizing of Post-Tensioned Floors (PDF)
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Structural Engineer, 10/01/2008
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When designing for thinner floors, using post-tensioning to resist loads and deflections provides a more optimal solution than conventionally reinforced floors. This fact is primarily due to the load-balancing effect of the draped post-tensioned tendons.
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Floor framing system selection : Applications of post-tensioning in buildings
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Structural Engineer, August 2008
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Designers have a multitude of choices in building design, especially in the selection of a flooring framing system. Post-tensioned flooring systems offer a great deal of flexibility, and when properly designed, can significantly impact the cost of materials and speed of construction.
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