Then the results of the proof-loading are presented and discussed. Then the proof-loading of the bridge will be described. Structural stresses and displacements were obtained through dead load experiments, and the mechanical properties of the structure were calculated through the finite element (FE) software. In the paper the structural design of the bridge, in particular the glass node connector and the glass bundle diagonals will be explained. A test bridge with a span of 50 m was built to prove the superiority of the truss arch bridge with multi-point elastic constraints (MTAB). These lie easily within the acceptable limits. Stage Concepts Truss based arch bridge system for racing events, road races, track events, start and finish lines and podium displays. During the proof-loading the strains in the glass diagonals have been measured. The whole system has then been proof-loaded for several critical load combinations (static and dynamic) just after installation. The glass bundles have been proof-loaded to twice their maximum expected load just prior to their installation in the structure. 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 lenticular truss will serve as a temporary bridge during the time the team needs to prepare for construction of the eventual Glass Arch Bridge. Most suspension bridges have a truss system beneath the roadway to resist bending and twisting. The diagonals in the truss are glass bundle struts and the nodes of the truss are cast glass components. This truss has been fitted with as many glass components as was structurally feasible. As temporary support for the arch, a lens-shaped truss has been constructed and placed on location. Download : Download full-size image Figure 13.19. 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. In steel arch bridges, the truss section was widely used during the last years of the 19th century and well into the 20th century, such as the New River Gorge Bridge, built in 1977 (Figure 13.19). (TU Delft Applied Mechanics TU Delft OLD Structural Design) Building and Testing Lenticular Truss Bridge with Glass-Bundle Diagonals and Cast Glass Connections
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |