Back in March 2018, a pedestrian bridge under construction in Miami collapsed and killed six people. The project was designed to create a unique walkway to help students at Florida International University cross the highway safely. However, the unique design proved to be too difficult to accomplish and a fatal flaw in the construction process was never discovered. In the several months since the accident occurred, more answers have surfaced as structural engineering experts have been analyzing the situation and have contributed countless hours of investigative work.
What Caused The Bridge To Collapse?
Structural engineering experts have concluded that the complex structural design of the bridge left an obvious weakness at a connection point. This is most likely the reason why the bridge collapsed, since the amount of stress put on the concrete brace was too much for it to handle. As every structural engineer evaluates the situation, it’s becoming even clearer this was the problem that led to the devastating consequences.
The Bridge Was Not Structurally Sound or Logical
Prior to the pedestrian bridge collapsing, engineers noticed cracks in the concrete and became worried. Investigators believe the construction crew was working to tighten the steel rods in the support truss in order to address the cracks when the bridge collapsed. It’s possible the overtightening of the steel rods led to them snapping and causing the bridge to collapse under its own weight.
What’s being discussed at length is the design of the bridge itself. The unique design seemed like a good idea, but it’s clear it was a little too over-the-top for the structural engineering team working on it. Some of the findings by independent structural engineering firms have led to similar conclusions, which are that it’s inconclusive as to who is actually at fault. The atypical design of the bridge did not make it structurally sound, but the calculations and plans for the project did not clearly indicate what the root cause of the issue was.
The Role of Structural Engineers in The Investigation
Answers will still be coming over the course of several months or years, and structural engineering experts will be at the forefront of them. The role of a structural engineering company and its experts is to present the facts to the investigative team. As of now, it appears the structural design was the main cause for the bridge collapsing, but as further evidence is discovered by structural engineering experts, those answers could change.
BE Structural is a structural engineering company that is well-rounded in anything involved with structural engineering. We are experts in more than just traditional engineering and construction, and always think outside of the box to better serve our customers. Feel free to contact us at any time to learn more about the Miami pedestrian bridge collapse or about how our company can serve you.