List of Pros and Cons of Truss Bridge
Truss bridges represent some of the oldest bridges you can find in the U.S. These bridges were initially built starting in the 1820s. One of the initial appeals of building these bridges is the way you can build them over areas in which the ground is less than fully secure. Each side features a horizontal/vertical layout plan, which is where the strength comes from. It is more than capable of supporting an opening.
There are a number of pros and cons to these bridges. A truss refers to something in which elements are brought together to establish an array of triangular forms. Utilizing wood and metal materials, these economical bridges provide a number of key benefits. At the same time, there are some downsides to these bridges that you are going to want to keep in mind.
Pros Of Truss Bridges
Even after nearly two full centuries of popular usage, truss bridges continue to bring a number of benefits to the table:
1. It can handle a heavy load
With elements designed to endure both compression and tension, truss bridges are more than capable of handling the weight of ongoing, varied cars and trucks.
Using lesser materials to create the bridge, you are definitely enjoying the benefits of using a bridge that features materials that are both durable and lightweight. Triangles using equal lengths can make it rigid, as opposed to being made to connect elements to create squares. Best of all, you only have to connect the ends of the elements with truss bridges.
3. Straightforward construction process
Not only can these bridges be built in places in which construction might prove to be challenging, but the overall construction process for these bridges is extremely straightforward.
Cons Of Truss Bridges
There are several downsides to truss bridges that are worth appreciating in greater detail:
1. Torsion weakness
Torsion forces can cause the bridge to twist, which is a significantly problematic element. Strong winds can definitely cause problems, such as hurricanes or typhoons.
2. Maintenance is expensive
Not only can maintenance for these bridges prove to be expensive, but the maintenance work itself can often prove to be extremely time-consuming. Since the bridge uses an older construction method, retrofitting the bridge can be extremely challenging.
3. Bucking and cracking are still problems
Continuous use and abuse can still lead to bucking and cracking within the bridge. These things can be difficult for contractors to address and then repair.