What is the strongest bridge design?
This is the question I get asked the most.
Before we can begin to look for an answer, I need to know more specifically what you are looking for. Are you looking for the the strongest Type of Bridge, such as:
Each of these has advantages and disadvantages. Each type could be the best for a specific situation, and there are a ton of factors that engineers must consider when choosing which one to use.
You can learn more about each of these by clicking the link above.
Perhaps you are asking about which truss design is the strongest. Since most model bridges are truss bridges, this is a great question to ask.
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Each truss design takes a load or force and spreads it out, eventually transferring it to the bridge abutments and/or piers.
So Which Truss is Strongest?
You really are going to pin me down to answering this question, aren’t you?
In my mind, none of these truss designs has an inherent advantage over the others in a very broad and general sense.
However, when we are considering small model bridges, I have a hard time seeing the Howe as efficient as the Pratt. But is one of these better than the most common, the Warren? You can explore my reasoning on this throughout this website.
Why don’t you take a look at each design and comment below which on you think is the best, especially in the context of model bridges.