5 Bridge Failures from the Recent Past
The news on structures failing are common to the current world. The failing in structural integrity ranges from huge structures to small or about simple structures. The occurrence can be ruinous basing on the rage of the causing agent or the size of the structure. A bridge is an instance of such structures. Bridges can fail when hit by an earthquake of intensity higher than what was designed for. Those areas experiencing heavy ice deposit require ice load consideration when carrying out bridge design or else unexpected ice deposit may outdo the capability of a bridge. It will demand the utility of those strong materials to put up capable bridges in those regions receiving strong destructive winds. There are extremities that should not be surpassed when loads to be supported is being considered. Some of the bridges failures have been caused by instability during repairs or while carrying out an expansion. So bridge design should be carried out by a pro or at least under supervision of practiced fellows. Most people are not keen whether a bridge can support certain load or not. Very few will look at the details of load a bridge can carry, many just generalize which is risky. Bridges falling down are not so common incidences with the increased considerations during designs, still few cases have been witnessed. The following are examples of bridges that were ravaged by different elements.
In 2017, The Central Italy Bridge went down. It was designed to support a short-lived traffic after an overpass was temporarily shut down. The bridge crash struck the road leaving a demise of two people behind. The failing of supports to the bridge was attributed to their weakening as a result of the construction which was ongoing. There are other more scenarios of bridges that have fallen out during construction. The Russian Bridge across Savala River in 2018 which killed a civilian. The load of some two trucks trying to cross over could not be sustained and the bridge was destroyed.
The North Bengal Bridge, Siliguri, which went down in 2018. The ignorance to supported axle load was what led to the fall. The truck driver which was got up with the incident failed to pay attention to load requirements according to the design. The bridge failed when a truck driver attempted to pass through. The driver was injured, and this was not long after another collapse case.
Italy Bridge collapse in Genoa which occurred in 2018. The witnesses seemed to believe that the bridge fallout was due to a deluge from the sky where lightning struck the bridge severely. The bridge broke and landed on the streets killing 37 people.