The truss structure that is used to strengthen the design of a bridge is called?

The truss structure that is used to strengthen the design of a bridge is called a truss bridge. To arrive at this answer, you can follow a few steps:

1. Start by understanding the question and its context. In this case, the question is asking about the truss structure specifically used to strengthen the design of a bridge.

2. Recall your knowledge or understanding of bridge designs. Bridges can have various types of structures, including arches, cables, and trusses.

3. Focus on the keyword "truss" in the question. A truss is a structure typically consisting of straight members connected at joints. It is known for its strength and ability to distribute loads efficiently.

4. Combine the understanding gained from step 3 with your knowledge of bridges. Bridges that prominently feature trusses are called truss bridges.

5. Answer the question by stating that the truss structure used to strengthen the design of a bridge is called a truss bridge.

So, the answer is the truss bridge.