No
if you build an arch bridge it can hold more weight then anyother type of toothpick bridge and can hold about 20lbs (if made well) another good type of bridge is the truss bridge it is just as strong as the arch bridge but it has diffrent structures.
a arch bridge can hold over 6,000 pounds
I want to build a truss bridge because truss bridge is most economical and his dead load is too low.
The Sydney Harbour Bridge can support a load of approximately 72,000 tonnes. This includes the weight of the bridge itself, vehicles, and pedestrians. The bridge's design incorporates a robust arch and steel truss system, allowing it to handle significant weight and stress. Additionally, the bridge is regularly monitored to ensure its structural integrity and safety.
To hold the arch in place
An arch bridge uses compression to hold itself together
an arch bridge weakness is not having enough streanth to hold up the middle
an arch bridge weakness is not having enough streanth to hold up the middle
nipples
There are many forces acting on a truss bridge compression, tension, and torsion. The truss bridge uses equilateral triangles to spread out the stress of the load on these forces along the hold structure.
they can't hold up the middle and are not sturdy enough to keep more than its weight together.
The weight capacity of an arch bridge depends on several factors, including the materials used, the design of the arch, and the span of the bridge. Generally, arch bridges can support a wide range of loads, from a few tons to several thousand tons. For example, the famous Pont du Gard aqueduct in France, which is an ancient Roman arch bridge, was designed to carry an estimated 40,000-60,000 tons of water. Ultimately, the weight capacity of an arch bridge is determined by engineering calculations and structural analysis.