COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring. |
University of Cambridge > Talks.cam > Engineering Department Structures Research Seminars > Angus Low’s 3rd equation; serendipity in research
Angus Low’s 3rd equation; serendipity in researchAdd to your list(s) Download to your calendar using vCal
If you have a question about this talk, please contact Jamie Clarkson. A lot of successful research does not involve major breakthroughs, but instead relies on drawing together many separate strands to form a coherent whole. The analysis of prestressed concrete (psc) is trivial but its design can be complicated. The prestressing force in a structure is typically ten times its weight, so unlike most structural elements, the unloaded state can be a critical design condition. Things are even more complicated when the structure is statically indeterminate. Finite elements don’t help because they tell you what will happen to a structure you have already designed, but not how to select that structure in the first place. The process is not governed by a small number of equations but by a large number of inequalities. The result is that design of psc is often put into the “too difficult” box and a less suitable material is chosen. Angus Low, who worked for Arups, and who sadly died in January this year, was one of the leading exponents of prestressed concrete bridge design. He published a paper in the ICE journal that referred to a previously unknown third constraint on the required prestressing force when designing viaducts. The method undoubtedly worked but the underlying principles weren’t clear. The talk will describe methods that allow the design of prestressed concrete to be carried out in a logical sequence, and on the way explains “Angus’ 3rd equation” as it came to be known. It allows a designer to work from the applied loads all the way through to the cross section shape, the choice of the concrete strength the selection of the required prestressing force and the final cable profiles. All the required theory is taught in the third year or earlier. It shows how the method can even be deployed in an expert system, which today would be called AI. ChatPSC anyone? Photo credit: HS2 Zoom link: Join Zoom Meeting https://eng-cam.zoom.us/j/83729338532 Meeting ID: 837 2933 8532 This talk is part of the Engineering Department Structures Research Seminars series. This talk is included in these lists:
Note that ex-directory lists are not shown. |
Other listsSouth Africa Music Download InflammaZoom ReproducibiliTea CambridgeOther talksA new look at multiple scattering in the presence of porous materials PDEs with Uncertain Inputs: Basics Data-Driven Adaptive Discovery and Design of Multiscale Material Systems under Uncertainty Conductivity Imaging using Deep Neural Networks Adaptive Model Reduction for High-Speed Flows NatHistFest: 104th Conversazione |