Building and Testing Lenticular Truss Bridge with Glass-Bundle Diagonals and Cast Glass Connections

Ate Snijder, Rob Nijsse, Christian Louter

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

2 Citations (Scopus)
41 Downloads (Pure)


On the campus of Delft University the Glass and Transparency Research Group is preparing to build a pedestrian bridge as a low arch consisting of dry-stacked glass blocks. As temporary support for the arch, a lens-shaped truss has been constructed and placed on location. This truss has been fitted with as many glass components as was structurally feasible. The diagonals in the truss are glass bundle struts and the nodes of the truss are cast glass components. The lenticular truss will serve as a temporary bridge during the time the team needs to prepare for construction of the eventual Glass Arch Bridge. Due to the experimental nature of the truss, with its unusual and novel applications of structural glass, a number of demonstrative proof loadings were performed to ease concerns about the safety of the structure. The glass bundles have been proof-loaded to twice their maximum expected load just prior to their installation in the structure. The whole system has then been proof-loaded for several critical load combinations (static and dynamic) just after installation. During the proof-loading the strains in the glass diagonals have been measured. These lie easily within the acceptable limits. In the paper the structural design of the bridge, in particular the glass node connector and the glass bundle diagonals will be explained. Then the proof-loading of the bridge will be described. Then the results of the proof-loading are presented and discussed.
Original languageEnglish
Title of host publicationProceedings of the Challenging Glass Conference 6 (CGC 6)
Subtitle of host publicationInternational Conference on Architectural and Structural Applications of Glass
EditorsChristian Louter, Freek Bos, Jan Belis, Fred Veer, Rob Nijsse
PublisherTU Delft Open
ISBN (Print)978-94-6366-044-0
Publication statusPublished - 2018
EventChallenging Glass 6: International Conference on the Architectural and Structural Application of Glass - TU Delft, Delft, Netherlands
Duration: 17 May 201818 May 2018
Conference number: 6


ConferenceChallenging Glass 6
Abbreviated titleCGC
OtherChallenging Glass is an international bi-annual conference that aims at gathering world class designers, engineers, researchers and industry partners to discuss on the architectural and structural use of glass.
Internet address


  • glass
  • bridge
  • proof-loading
  • truss


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