by the pillars
porkchop
The weight of an arch bridge is distributed by transferring the weight of the bridge and its load outward and along the curve into an horizontal thrust retrained by the abutment at either side of the bridge to distribute the weight of the bridge evenly.
porkchop
brace
a horinontale frame and weight is distributated by the beam
The weight limit for a truck crossing the bridge is 18 metric tonnes.
The weight limit for a truck crossing the bridge is 18 metric tonnes.
The only current problem with Tower Bridge is the weight restriction of 18 metric tonnes when the national weight limit is 44 tonnes.
100 tonns
Tower Bridge is open to traffic but has a 20 mph speed limit and an 18 tonne weight limit.
The weight limit for a truck crossing the bridge is 18 metric tonnes.