how do we construct stone arch bridges?

Question

force analysis , weak points

please add referrence ,, mainly websites

Answer 1

Stone is very strong in compression. Since loading occurs from the top, the arc will only have to with stand compression loads.

Weak points: In order to create the arc you have to build a support under it sometimes this may be impossible.

Answer 2

I've constructed one or two arch bridges, explaining the forces is complicated but suffice to say the force is disippated downwards, outwards and through the arch to the founds.

A correctly constructed arch has no weak points as such - it's far more susceptible to shock impact on the sides than shock loading on the bridge itself.

As for how they're constructed... Modern ones from reinforced concrete and steel mechanically lowered or raised into position. Traditionally a frame would be constructed to support the weight of the bridge as it was being constructed. Once complete the frame would be dismantled. A well built arch is entirely self supporting (provided it's buttressed or has some other means to prevent lateral movement) but a cementacious product such as mortar would be used for extra strength and to prevent movement of the component pieces.

Answer 3

on the grounds which you're at your workstation already, you should look this up for your self. in basic terms enter the three bridge varieties on your browser, and additionally you gets dozens of suggestions. the belief of homework is that ought to certainly assist you learn. you somewhat are no longer examining if somebody else does the artwork for you. Sorry.