What is the strongest truss bridge design?

What is the strongest truss bridge design?

In this experiment we have tested which type of truss bridge is the strongest, yet uses the least amount of material. Two of the most used truss bridges are of the Pratt and Howe design. Through our experiment it was found that the bridge design that minimized the maximum compression force was the Howe Bridge.

What are the 4 variations of the Pratt truss design?

The Parker, camelback, Pennsylvania and Baltimore are each variations on the Pratt truss design.

How is a truss bridge designed?

In a truss bridge, two long – usually straight members known as chords – form the top and bottom; they are connected by a web of vertical posts and diagonals. The pattern formed by the members combined with the stress distribution (tension and compression) creates a specific truss type, such as a Warren or Pratt.

What are the 4 types of truss bridges?

What are the Types of Trusses?

• Pratt Truss.
• Warren Truss.
• K Truss.
• Howe Truss.
• Fink Truss.
• Gambrel Truss.

What type of truss bridge can hold the most weight?

arch bridge
The arch bridge can hold the most weight, the deck bridge can hold an average amount of weight, and the beam bridge can hold the least amount of weight.

Which bridge can hold the most weight?

The arch bridge can hold the most weight of the three, the deck truss bridge can hold an average amount of weight, and the beam bridge could hold the least amount of weight.

What kind of bridges can Pratt truss be used for?

The Pratt Truss design as pictured above is one of my favorites. I have used it often for my model bridges, including balsa, basswood, and popsicle sticks. It is easy to construct, and is a solid choice for a model bridge design.

Who was the inventor of the Pratt truss?

The Pratt Truss was designed by Thomas and Caleb Pratt in 1844. It became popular for railway bridges because it made good use of iron. The Pratt has many variations, most with their own unique name.

Who was the first person to build a truss bridge?

Theodore Burr came up with a design that was used in many iconic covered bridges, and some are still standing today. These men came up with practical solutions for bridge building, and did not know or have access to the theory behind their designs.

What was the primary material for Howe and Pratt trusses?

Wood was the primary material available in these early years, but iron and then steel came along and changed everything. With iron and steel, and the expansion of railroads that carried heavier and heavier loads, new bridge designs were needed. The Howe and Pratt trusses in particular were designed to incorporate iron rods in the truss.