A lattice-boom crane is characterized by what construction?

A lattice-boom crane is specifically characterized by its construction of thin steel gridwork. This design utilizes a framework of interconnected rods or beams that form a lattice, which is both lightweight and strong. The grid structure allows for reduced weight while maintaining high structural integrity, making it suitable for lifting heavy loads without the excess bulk that solid beams would require.

The use of thin steel elements in a grid pattern contributes to the crane's ability to reach great heights and span long distances while being able to withstand the forces exerted during lifting operations. This engineering approach is essential for maximizing efficiency in operations, as it allows for improved mobility and versatility on job sites.

In contrast, solid steel beams, thick wood planks, and concrete segments do not possess the same benefits regarding weight efficiency and spatial dynamics that lattice design provides. Each of these materials has its own characteristics and uses in construction or lifting, but they do not apply to the lattice-boom crane's unique construction features.