| 释义 |
Needle beam
| (Arch.) | in shoring, the horizontal cross timber which goes through the wall or a pier, and upon which the weight of the wall rests, when a building is shored up to allow of alterations in the lower part. |
See also: Needle Needle beam
needle beam[′nēd·əl ‚bēm] (civil engineering) A temporary member thrust under a building or a foundation for use in underpinning. Needle beamA steel beam used to support an existing structure while it is being repaired, or to provide support when moving a structure, or when removing a portion of the wall below the beam; usually installed by removing a section of the wall or area, and inserting it into position.needle beamA crossbeam supporting a load; used in underpinning foundation walls; attached to columns at its ends, clear of the existing footing. |