Posts tagged with "Glass":
What is it like to whiz through a glass slide 1,000 feet above Los Angeles with nothing to hold on to other than a gray wool mat? The experience is so terrifying one would be forgiven for blocking out the memory entirely—but, thanks to the structural engineering capabilities of Brooklyn-based M. Ludvik Engineering, it is also incredibly safe. “We tested the pants off of absolutely everything,” Michael Ludvik, a structural engineer, told The Architect's Newspaper as he discussed the structural design for L.A.’s newest thrill-seeking-tourist attraction, the Skyslide at OUE Skyspace L.A.
OUE Skyspace is part of a Gensler-designed, $60 million overhaul of the public areas of the 1,018-foot-tall, Pei Cobb Freed & Partners–designed U.S. Bank Tower; the renovations include a new ground-level plaza and lobby and, on the 54th floor of the tower, a snaking labyrinth of “digital interactivity” spaces, with moody hallways, panoramic video displays, and movement-sensitive light installations.The real big-ticket item, however, is the OUE Skyspace $8-per-ride Skyslide, a 1¼-inch-thick glass-panel slide that exits the building’s envelope at the 70th floor, curves out over the city 1,000 feet below, and swoops back onto an outdoor terrace at the 69th floor, where the rider is unceremoniously dumped onto a red, padded mat. Ludvik explained, “The majority of the glass is tempered and laminated with a special structural interlayer called SentryGlas [made by Kuraray], which is the same product used for hurricane glazing in Miami-Dade County. We also have some glass with a complex bent geometry, where tempering was not possible, so we chemically strengthened the glass to be as strong as steel.” It is no wonder that the slide, located as it is in a seismically active region, atop a building designed to sway as many as 30 feet during an earthquake, was engineered with a complex array of articulated, “soft touch” connections, containing ball joints that allow the slide to move independently of the massive building, that can carry a purported 40,000 pounds of pressure per connection (that’s the weight of a New York City subway car). “It would be scary as hell, but the glass wouldn’t break,” Ludvik said of the unlucky experience of riding the slide during an earthquake. “There is a system of pins which allow the glass to pivot and to be undamaged by the building’s inelastic seismic movements, plus a 2.4 g-force seismic acceleration capacity, all with a large factor of safety. This thing is a machine as much as a structure.”
Since each sheet of glass requires a structural joint that not only creates a point of potential structural weakness but, for the slide user, also the opportunity for a bumpy ride, Ludvik and his team designed Skyslide using Nastran, a stress analysis software used by NASA, to include as few pieces of glass as possible. They also worked with a complex, multinational team of fabricators to complete different portions of the slide. Renowned, China-based industrial-glass manufacturer North Glass fabricated the straight run of the slide, while the Italian company Sunglass crafted the curved portions.
Also important to the design of the slide were maintenance and cleaning operations, concerns about which resulted in the installation of operable windows along the tower’s facade facing the inboard side of the slide, so a traditional window-washing rig can reach it. “I will let you know how it all works after they hang me off the side for the first maintenance inspection,” Ludvik said.
Structural Engineering Services M. Ludvik EngineeringStructural Glass North Glass Sunglass SentryGlas by Kuraray
With the ability to create up to three variable tint zones within a single pane, Lightzone controls sunlight to optimize daylight, maintain views, and prevent glare. It also provides a lot of design freedom for building envelopes because it is available in myriad geometric shapes, sizes, colors, and zoning patterns. It also reduces overall energy loads by up to 20 percent and peak energy demand by up to 26 percent.
Lamberts Glass Bendheim
The first channel glass to receive bird-smart certification, Lamberts glass has been scientifically proven to be visible to birds. Not only is bird strike jarring to occupants, but it is also estimated that up to a billion birds a year are killed in the U.S. alone due to collisions with glass buildings.
CrystalBlue Guardian Industries
CrystalBlue can be combined with many SunGuard low-E products to provide a range of energy performances along with high visible light transmission, now with a blue color. It is available coated and uncoated at 6 millimeter thickness in a variety of sizes.
As a pioneer for glass in oversize formats up to 10.5 by 49 feet, sedak’s new insulating glass line automates the production process completely, leading to high-quality fabrication that can easily be reproduced. Additionally, large scale translucent units can be printed fully covered with the roller coater technique or with a digital flat bed printer, allowing for complex, colorful designs.
Low-E Coated Acid-etched Glass Walker Glass and PPG
PPG’s Solarban low-E glass is paired with Walker’s collection of acid-etched finishes, including bird-safe AviProtek glass, to expand the range of aesthetic and performance options available for energy efficient, environmentally progressive glass.
SolarSmart Innovative Glass Corp
A heat-blocking, self-tinting smart glass that darkens in response to solar heat gain to keep interiors cool, lowering energy usage and costs. The hotter the glass gets, the darker the glass will tint—it is 100 percent solar activated, requiring no power, wires, or user involvement.
This super thin, flexible glass can be rolled onto a traditional flat building material, such as MDF, to create a durable laminate that can be easily cut on-site.SunGuard SNX 51/23 Guardian
Designed to offer the most light with the lowest heat, triple silver SunGuard SNX 51/23 is a commercial low-e glass product with visible light transmission at 51 percent and a solar heat gain coefficient at .23 on clear float glass.View Intelligence 2.0 View Dynamic Glass
The algorithm that controls the tinting process of this dynamic glass system works with advanced weather inputs, enabling it to predict not only the sun’s movement, but also short-term and long-term weather conditions.Glascene Asahi Glass Company
A combination of glass and screen, this material allows images to be projected onto clear glass without blocking the view beyond. Available in a range of thicknesses and screen sizes of 100-inches and larger, the product can accommodate front- and rear-projection designs.LightWise Pittsburgh Corning
These glass block units install like traditional windows with built-in nailing fins, so there is no additional assembly required. They provide privacy, security, and light-control while meeting Energy Star requirements.Corning Med-X McGrory Glass
Architects can design medical X-ray viewing windows with a wider field of vision and improved comfort, thanks to the large 108- by 54-inch size of this glass. Other applications include screens for medical diagnostics, protection windows in laboratories, and airport security X-ray screens.