Belfast truss[′bel‚fast ′trəs]
A bowstring beam for large spans, having the upper member bent and the lower member horizontal; constructed entirely of timber components.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
A bowstring truss, for large spans, which is constructed entirely of timber components; the upper member is bent, and the lower member is horizontal.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.