| 摘要 |
The present invention is a structural beam having at least one composite core within a hollow beam of metal or polymeric material, i.e. a jacket, and a layer of elastomeric material between the composite core and the inner walls of the metal or polymeric jacket. This structural beam also may be fitted with brackets or holes at its ends and points along its length to allow attachment to other structural elements. The present beam provides a synergism between the properties of its composite core and the metal or polymeric jacket, and is particularly useful where a high strength to weight ratio is required. |
