Yes, because the mathematical process they used in that architecture was really well done.
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Not inherently so, it isn't. The design mathematics are fully understood for any bridge type, and the individual bridge is designed for its own location and intended loads (plus safety factor).
because of the support of the circles
In general, a truss bridge is stronger than a beam bridge due to its design, which distributes loads more efficiently through a series of interconnected triangles. This triangular configuration allows truss bridges to handle greater loads and spans compared to beam bridges, which rely primarily on the strength of a single horizontal beam. Additionally, truss bridges tend to be lighter, making them more cost-effective for longer spans. However, the specific strength can also depend on materials and construction methods used.
No
An arch bridge. I think that may have been discovered quite some time ago !!! +++ It was - the Romans used arches extensively, in buildings as a well as for bridges. However, the arch is indeed stronger than the plank, or simple beam, bridge because it transmits the loads to its abutments. You can stiffen a beam bridge by fitting it with vertical side-members, or in larger structures, frames (trusses).
Suspension bridges are typically stronger than truss bridges because they can span longer distances and support heavier loads. The design of a suspension bridge allows for the weight to be distributed more evenly, reducing stress on the structure. Truss bridges are better suited for shorter spans and are generally lighter in weight.
Yes there were truss bridges in Europe before the United States. Truss bridges formed in the US because of Europeans, but new American designs were made and that is why the truss bridge is more abundant in the US than Europe today.
As strong as you make it... Basically a truss system is used when a beam cannot hold its load, so is one way of 'reinforcing' a beam (you could have more supporting colums or use cable stayed/suspension techniques). Its basically stronger than a beam, and 'weaker' than a suspension bridge, but to be honest it's basically as strong as you engineer it. Try searching truss bridge on wikipedia... there's lots of different types and I'm sure it'l have the info.
because it is less stronger than the sides of the bridge.
Because it has more support in its arches.
the truss bridge is strong because each side supports the next one over, as that one supports the next one over, as that one supports the first one. I'm not sure on this part, but I think it is a lot more stable than a square because it also has the strength of the arch.
Whether a truss bridge is better than a cantilever bridge depends on specific project needs and site conditions. Truss bridges generally offer greater load distribution and can span longer distances with less material, making them efficient for heavy loads. However, cantilever bridges are often advantageous in areas where construction is challenging, as they require less support during assembly. Ultimately, the choice between the two depends on factors such as load requirements, environmental conditions, and budget constraints.
A metal based tooth for a bridge is definitely stronger than just porcelain, but depending where the bridge is in the mouth, it may not be as aesthetically pleasing as just porcelain would be.