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A timber bridge or wooden bridge is a bridge that uses timber or wood as its principal structural material. One of the first forms of bridge, those of timber have been used since ancient times. Wooden bridges could be a deck-only structure or a deck with a roof. Wooden bridges were often a single span, but could be of multiple spans.
The design allows the walls, roof and cantilevered floors to be supported entirely by cables and a center column. Another type of suspended structure, suspended catenary, uses outer-wall concrete columns angled away from the center with a cable system strung between them suspending a roof and outer wall structure.
Transom windows which could be opened to provide cross-ventilation while maintaining security and privacy (due to their small size and height above floor level) were a common feature of apartments, homes, office buildings, schools, and other buildings before central air conditioning and heating became common beginning in the early-to-mid 20th century.
Most domestic buildings of the Romanesque period were built of wood, or partly of wood. In Scandinavian countries, buildings were often entirely of wood, while in other parts of Europe, buildings were "half-timbered", constructed with timber frames, the spaces filled with rubble, wattle and daub, or other materials which were then plastered over. [10]
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The Nine-turn bridge (Chinese: 九曲桥) or Zigzag bridge is one of the features of Chinese Gardens, where the bridge is designed to turn several times, so one can enjoy viewing different scenes. The bridge is usually made of stones or concrete with decorated guard rails , and the angles of the turns can be at right angles, at any other angle ...
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In light-frame construction, a trimmer is a timber or metal beam (joist) used to create an opening around a stairwell, skylight, chimney, and the like. Trimmers are installed parallel to the primary floor or ceiling joists and support headers, which run perpendicular to the primary joists.