How do we specify glass railings?

  • By Dan Stachel
  • 06/01/19

Glass design and engineering analysis can be inconsistent across projects. There are several possible reasons for this including the treatment of guardrails as a product rather than an engineered structure, general inexperience with glass as an engineered material, and limited access to glass design software in the U.S.

To ensure you have all the pertinent details, ask suppliers to provide you with a comprehensive proposal, including detailed takeoffs with specific inclusions or exclusions for each railing style within the project scope. These details should include aspects such as finish, linear footage, structural attachment, and makeup. Additionally, request a submittal package that includes 3D renderings based on the architectural and structural specifics for the project.

High-definition surveying (HDS) technology offers tremendous benefits over conventional surveying. It allows for the capture of thousands of critical measurements with precision accuracy, thereby significantly reducing the need for fabrication rework. It also offers a much faster track to the manufacturing process by eliminating the risk of human error and saving weeks of manual field measuring.

Regardless of the method selected for analysis, there are two key principles that should be considered when specifying glass railing: the elastic properties of laminate interlayers (and how they change with temperature and load duration), and understanding that local stresses—e.g., contact materials, support size, and hole size—are critical. In light of these varying factors, it’s recommended that a good finite element program be used to accurately determine glass stresses instead of any manual analysis.

Glass analysis is the most critical aspect of specifying point-supported glass due to life-safety factors. It’s essential that those who have a stake in a project understand this and take appropriate measures to ensure that building code requirements are met.

This article originally appeared in the College Planning & Management June 2019 issue of Spaces4Learning.

About the Author

Dan Stachel is vice president of Trex Commercial Products (www.trexcommercial.com).

Featured

  • Belmont Abbey College Selects Architect for New Performing Arts Center

    Belmont Abbey College in Belmont, N.C., recently announced the selection of Little Diversified Architectural Consulting (Little) to serve as the project architect for its new Visual and Performing Arts Center, according to a news release. The 1,000-seat theater will serve the college and local community as a home for theater, visual arts, performing arts, art exhibitions, and other cultural and educational events.

  • Quadient Achieves 25,000 Locker Installations Worldwide

    Global automation platform Quadient recently announced that it has acquired Package Concierge, a U.S.-based parcel management solutions provider, according to a news release. The acquisition pushes Quadient over the 25,000-unit milestone of global installations.

  • College of the Desert Starts Construction on New Campus Location

    College of the Desert recently announced that it has broken ground on its new Palm Springs campus in Palm Springs, Calif., according to a news release. The multiple-building campus consists of 175,000 square feet of new construction and will cost an estimated $268 million.

  • Oregon District Selects Builder for Multiple Renovation Projects

    The David Douglas School District in Portland, Ore., recently selected Balfour Beatty company Howard S. Wright to deliver $15.7 million in renovations and repairs across multiple schools and facilities, according to a news release. The district also partnered with BBL Architects for the projects’ designs.

Digital Edition