How Do Bridges Withstand A Natural Disaster

The estimated number of bridges in the United States is more than 550,000. Several people pass through bridges daily without being bothered about their security. But do we know whether these bridges are natural disaster resistant or not?

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Hurricane Katrina which struck the Untied States damaged and forced the bridges towards extreme sideways. They were completely pulled out of their docks. Hence, officials were striving hard to build strong infrastructures that could resist a disaster.

Usually, bridges are apprehended by unbreakable solid columns and bars. Officials have come with a new design where steel tubes are filled with concrete. These steel and concrete joint crafted sturdy yet flexible columns.
These multi-hazard-resistant bridges are planned for utilization over highways and can survive fire, hurricanes and flooding.
An earthquake engineer discovered an innovative multi-hazard design for bridges that will create them more defiant from breaking up from the effect of earthquakes and terrorist attacks.

The newly designed bridge-pier comprised steel tubes filled with solid, but with no supporting bars. The steel and concrete unite jointly, shaping a compound structure and imparting power and support to the docks. Hence, it would easily bend without collapsing when subjugated to seismic powers or volatile explosions. Typically, all bridges are constructed with supports by conservative unbreakable solid columns. Hence, these bridges crack or decline after a major explosion has occurred, causing the bridge to fall down.
Hence, in such case, a new bridge design can help to a great extent. The steel and concrete joint can form strong yet flexible columns. These modernized bridges can resist fire, hurricanes and flooding.

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How Do Bridges Withstand A Natural Disaster