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ASTM E/EM: Standard Practice for Design and Performance of Supported Laminated Glass Walkways. of breakage (POB) of 8/ from the appendix of ASTM E, these allowable stresses While ASTM E () does address point loads as design. testing to ASTM F Test Method. • Testing program 41kPa,. kPa-msec ASTM E Standard. Practice. – Calculation method. • Determine glass.

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Types of modern glass include: Written into fire and life safety e275 for much of those 50 years, wired glass can still be found in buildings today.

If you have specific questions or need immediate assistance, please contact us directly at While not as strong as the later developed annealed or tempered glass, wired glass was used for over 50 years in windows in doors and along corridors, and those areas required to provide fire separation protection.

Under impact, body parts can break the glass, and the embedded wires present a significant risk of injury. Existing float glass can be covered with guards or a transparent film to prevent it from shattering and most glass can be easily removed and replaced with an appropriate safety glazing material.

Submit an inquiry or contact the author of this article to discuss your case and how we can assist. Glass in elevator cars shall be in accordance with this section. Shower and sauna enclosures and glass enclosures at some recreational and sports areas are also e271 as impact hazard areas. According to the National Safety Council, hundreds of people are injured each year through their encounter with broken float glass.

Edmonton International Airport – Cast Glass, Glass Flooring, Antique Mirrors – Jockimo, Inc.

ASTM E, Standard Practice for Design and Performance of Supported Glass Walkwaysprovides requirements for structural performance, markings for clarity and slip resistance for the design and construction of these features. Generally, they are the areas surrounding a doorway and places where it is foreseeable that a person could walk and encounter glazing, such as patios, and fully glazed storefronts.

Glass in elevator cars shall be in accordance with this section The values stated in each system may not be exact equivalents; therefore, each qstm shall be used independently of the other. The use of glass in windows, doors, storefronts, along stairs or ramps and similarly glazed features do not have to be dangerous if relatively simple asmt measures are taken to assist people in asym and avoiding these hazardous locations.

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Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Historical Version s – view previous versions of standard. The area of any single vision panel shall be not less than 24 square inches 15 mm 2 and the total area of one or more vision panels in any hoistway door shall be not more than 85 square inches 54 mm 2. Commonly referred to as safety glazing, heat strengthened, laminated, and tempered glass, as well as ceramic, plastic and polymer products are now commonly used glazing materials in areas subject to the likelihood of human impact.


Such assemblies shall comply with the fire-resistance rating requirements of this code where applicable. Laminated glass products may break, but are held together by an interlayer of plastic or polymer reducing the likelihood of exposure to sharp edges. Storefronts and glazed curtainwalls may not be reliably identified astk people walking nearby and they can easily be confused with xstm open walking path.

Standard Practice for Design and Performance of Supported Laminated Glass Walkways

The glass in glass elevator car doors shall be not less than 60 percent of the total visible 2e751 panel surface area as seen from the car side of the doors. The glass in glass hoistway doors shall be not less than 60 percent of the total visible s2751 panel surface area as seen from the landing side. His expertise in facility design, construction, and architectural professional practice, along with his extensive experience in the premises safety aspects of the built environment, are applied to relevant forensic casework.

Without appropriate markings, people can unintentionally walk into these features and become injured without breaking the glass.

Issues that are common to all walkways, such as slip resistance, are addressed in existing referenced standards. Floor to ceiling storefronts, shopping malls, restaurants, office buildings, and other commercial environments often include these features.

As the injured person recoils, the pointed shards can make deep lacerations that can be life threatening. Glass installed in hoistways and hoistway doors where the hoistway is required to have a fire-resistance rating shall also comply with Section Through video he introduces a Model codes, including the International Building Code, define these areas as those subject to human impact.

Wired glass is less strong than float glass. Therefore, the type of glass is an important consideration in the design and construction of glass treads and glass landings constructed with laminated glass. A heavier form of this glass is float glass.

Building Glass & Premises Safety – Expert Article

First produced in Europe, wired glass was introduced to the United States in or around Old float or wired glass still in use where modern standards require safety glazing products; improperly installed replacement glass panels and tempered or heat strengthened glass which fail during use; and inadequately marked or protected glass panels which cannot be reliably identified can all result in injury.


As a former hearing officer on the AIA National Ethics Council, and now a testifying expert in construction disputes, I have seen my share of Stay up to date with weekly communications from Robson Forensic – Substantive technical articles, safety practices across various industries, contact information from featured experts.

When tempered glass breaks, it fractures perpendicular to the plane of the surfacerather than parallel to it, resulting in small cubes that are less likely to cause significant injury… Float glass was the most common type of glass used in buildings until recent times. For assistance determining which expert is best qualified to investigate the wstm technical aspects of your case, please contact your local Robson Forensic office or submit an inquiry through our website.

When someone impacts float glass, the danger is twofold. These shards can easily cut flesh and tendons, and the results can be severe or even deadly. In this article, architect and premises safety expert, Anthony Shinsky discusses various aspects of flooring that influence pedestrian safety. Glass is annealed glass that goes through a heating and aatm process designed to double its astk in comparison to ordinary annealed glass.

But tempered glass and other types of safety glazing qstm not hazard free. Heat strengthened and tempered glass break into rounded cubes which may still contain sharp edges, but do not form dagger-like shards. Impact resistance, breakage tolerance, deflection of the system, and the free area between components are all regulated by this standard and the failure to meet any one of them can result in injury.

ASTM E – 11 Standard Practice for Design and Performance of Supported Glass Walkways

The premises safety experts at Robson Forensic have investigated many injuries involving broken glass, falling glass panels, and pedestrian collisions with doors, windows, and other partitions. Combining values from the two systems may result in non-conformance with the standard. If damage of any kind occurs, the walkway shall be cordoned off and the installation shall be inspected to ensure structural integrity and pedestrian safety of the system.

The glass qstm not subjected to further treatment such as sandblasting; etching; heat treatment or painting that could alter the original properties of the glass.