Which Chinese bridge design uses smaller arch segments for strength?

Which Chinese bridge design uses smaller arch segments for strength?

• A. Tea cultivation
• B. Woodblock Printing
• C. Movable Type
• D. Segmental Arch Bridge

Answer: (D)

In Chinese bridge engineering, breaking the arch into smaller segments—a shallow, segmented arch—lets many wedge-shaped stones (voussoirs) carry the load in compression. Each segment transfers weight smoothly to the adjacent pieces and then into the supports, which reduces the horizontal thrust at the springing and distributes forces more evenly. This makes the structure stronger for a given span and allows longer, more durable bridges to be built with the materials and methods available. A famous historical example is the segmental arch bridge, which embodies this approach. The other options refer to different Chinese innovations—tea cultivation, woodblock printing, and movable type—that are not bridge designs.

In Chinese bridge engineering, breaking the arch into smaller segments—a shallow, segmented arch—lets many wedge-shaped stones (voussoirs) carry the load in compression. Each segment transfers weight smoothly to the adjacent pieces and then into the supports, which reduces the horizontal thrust at the springing and distributes forces more evenly. This makes the structure stronger for a given span and allows longer, more durable bridges to be built with the materials and methods available. A famous historical example is the segmental arch bridge, which embodies this approach. The other options refer to different Chinese innovations—tea cultivation, woodblock printing, and movable type—that are not bridge designs.