Civil Engineering and the Lego Bridge

SydneyRoverP6B

Well-Known Member
Staff member
I had been a student member of the Institution of Civil Engineers (ICE) since commencing my civil engineering studies in 2016. This morning I was absolutely thrilled to see that I have been accepted as a graduate member entitling me to use the post-nominals of GMICE after my name, in addition to my qualifications. The ICE was founded in 1818 by Thomas Telford FRS, FRSE, a Scottish civil engineer, who was the ICE's first President.

The ICE has some 92,000 members worldwide, with three-quarters living in the United Kingdom. The ICE also has a truly magnificent library with over 130,000 books on civil engineering. Below is a very interesting ICE video about building a bridge from lego. Regardless of size, the same engineering principles still apply.
Creating the LEGO Bridge: A Civil Engineering Challenge - YouTube

The first photo is of the ICE library, which I shall visit when I come to London in the future. The second is a problem that I worked on recently.
Library-at-One-Great-George-Street.jpg

It is of the cross-section of a reinforced T beam. The first part of the problem required working out the depth of the neutral axis relative to the top surface of the T. When a beam is subjected to non-uniform bending there are compressive and tensile forces running the length of the member, which decrease linearly as they approach the neutral surface. The surface is so named as there is no normal stress or strain present. I posted the problem purely for interest.
T beam.JPG

Ron
 
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