History of Beams

History of Beams

Ancient Column Structure (Athens, Greece) [1]

Ancient Column Structure (Athens, Greece) [1]

Image of an ancient column structure in Athens, Greece.

Brief History

  • A beam in engineering was originally as simple as a solid piece of timber that was used as a beam for a house, a plow, or a balance.

  • Beams were designed to carry a load in multiple different structures, such as buildings, bridges, etc.

First I-Beam 

  • The first I-beam was developed in 1849 by Alphonse Halbou.

  • The I-beam is an iconic beam in engineering because of sleek design and functionality.

  • The world's first steel building which was constructed in 1889 used I-beams which showed engineers around the world the strength of the I-beam.

  • The first I-beams could support approximately 20 stories, however when Henry Grey adjusted the design to reduce the internal stresses of the beam, then I-beams were able to be built larger and stronger which thus resulted in larger buildings [2].

Failures of Beams

Flexure Failures

Shear Failures

Diagonal Tension Failure
Shear Compression Failure
Splitting Shear Failure
Anchorage Failure

 

References 

Contributors: