Author2022 TCNJ Steel Bridge Team |
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Building Progress2/15/2022 In the first couple weeks of February the stringers were spot welded. This was done by first creating a set up to hold all the pieces in place. A set up had to be created for the 2 foot and 3 foot sections. The cantilever end was designed; it had a one inch member on the bottom half and a 2 foot section on the top like the other stringer pieces. The one inch member was used for extra support. A connection plate was designed for this one inch member. The connected plate was water jetted and the piece was spot welded together. The stringers were laid out to see what parts still had to be done and to get an idea of how long the bridge would be. After all the stringer's top and bottom sections were spot welded the bolt holes had to be drilled. This was done with one of the machines with both top and bottom members connected. It allowed for precision and accuracy of the holes. This was set up for each section accordingly. After the bolt holes were drilled the holes were beveled and the members were checked to make sure they lined up with the vertical member's bolt holes. The stringers were then connected together to see if all parts fit together. Some of the plates were bent so they were corrected to fit with ease. We learned that the vertical members would have to be bolted together first and then the middle connections would be tightened after. The stringers appear to be strong and our advisors are excited to see the final product.
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