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  • About
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Andrew'S
Engineering blog 


SUSPENSION BRIDGES

9/10/2015

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Picture
     Suspension bridges are effective designs for bridges.They have two anchor points channeling compression and cables on the support piers with other cables on the main cables to support tension. Types of these bridges started to appear around the early 1900's and thrived because of their innovative design. 
     Most suspension bridges are very successful, and have quite a bit of advantages. Some of these advantages can be that, it requires little maintenance from below, with only having the two supports, these bridges can withstand earthquakes very well, longer main spans are available, as well as a lower construction cost for materials. 
     While this type of bridge has a multitude of advantages, there are low points on this design. Some of these disadvantages can be that, during construction it is difficult to fix due to lifting deck and limit waterway and roadway access, suspension bridges are quite flexible, so they can be susceptible to stress, and they have a load limitations.
     Suspension bridges are innovative bridge designs that are very effective with little disadvantages. They are economic for civilian use and easily constructed by cost of materials. Suspension bridges can be a very effective bridge type. 

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To err is Human

8/14/2015

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To Err Is Human

            In the video, it showed and explained the failures of engineering and architecture throughout history and explained why we need failures in the engineering industry. It also showed engineering innovations throughout history and feats an engineer is required to do. Some causes of structural failure are not having a thorough plan, not testing the plan on a scale model before constructing it on a large scale first, having no durable materials, and not taking natural and possible man-made disasters into mind when planning and/or building. Stresses and materials are very important when it comes to planning and building a structure because having a structure that is able to withstand any disaster needs durable materials, such as enforced steel, stone, and other objects that can be used as building material that is sturdy. This also involves stresses. With stresses you test the materials durability and determine if it is a proper material to use when erecting a structure. Most importantly from this video is failure. Failure is necessary to succeed. When we fail we learn from it so we can use what we learn to start again and improve on what we know. Today, engineers must experience failure as well, no one is perfect. A way they can experience that is through scale models and stress tests for materials, to hit a “rough patch” instead of a complete failure when building a structure. With all of these ideas in mind, we can learn from mistakes, experience failure, and create structures correctly, based on history’s experiences as well as ours. 

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