| 单词 | ring beam | 
| 释义 | > as lemmasring beam   ring beam  n. 		 (a) a ring-shaped beam of yarn (now rare);		 (b) Building and Engineering a band of reinforced concrete or other strong material along the perimeter walls of a structure (originally esp. a domed building). ΚΠ 1913    Times 12 Apr. 24/5  				Yarns are sold sparingly; ring beams are doing well and are much more in demand than mule twist. 1924    Times Trade & Engin. Suppl. 29 Nov. 247/1  				Ring beams are now worse off in margin by 1d. per lb. compared with a month or six weeks ago. 1932    C. E. Reynolds Reinforced Concrete Designers Handbk.  ii. 216  				Outward horizontal thrust on ring beam at B from dome. 2004    D. M. Dowling in  W. I. Rose et al.  Nat. Hazards in El Salvador xxii. 294/1  				The ring beam allows a more uniform distribution of the roof load onto the walls, thus minimizing zones of high stress concentration. < as lemmas | 
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