So the mechanical model was widely used in analyzing the roof structure and weighting forecast, and the application of the voussoir beam model, cantilever beam model, Euler beam model, and hinged arch bar model also proved its practicality in many engineering cases .
Moreover, the global pressure-arch structure of the bedrock strata was transformed into the multiple single-layer hinged arch structure and the long periodic roof weighting was produced.
Song, "Stability analysis and numerical simulation of hinged arch structure for fractured beam in super-long mining work face under shallow seam," Rock and Soil Mechanics, vol.
A Hinged Arch. Figure 6 gives the geometry of a hinged arch which is widely analyzed in previously published works.
With a various subtended angle a ranging from 10 to 350 degrees, Table 4 shows the comparisons of fundamental natural frequency (rad/s) of the hinged arch. The present solution is computed by four BSWI elements.
The sixteen-page section on bridges, with drawings of many types including hinged arch
(three), truss (twelve), long-span (three), girder (three), and lift bridge (three), is detailed and comprehensive enough to be used as a primer for making model bridges.
Here it is beautifully sung by the entire cast, and particularly by the three principals, Caroline Sheen, Lucy Schaufer and Matt Rawle, while the set by George Souglides, in which hinged arches
are moved about to create the piazza (complete with a sizeable reproduction of Michaelangelo's David) and interiors, is ingenious and elegant.