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queen post truss

HB50
truss consisting of two principal rafters and a pair of vertical posts (queen posts) or ties (queen rods) which are restrained by a horizontal tie beam at the bottom and a horizontal straining beam at the top
See Figure A.25
It was a traditional roof truss for spans between 10 and 20 m, however, it has been replaced by more economical steel trusses.
See also: tie beam; straining piece <strut>; king post truss; Pratt truss

Figure A.25: Roof trusses

HB50
queen post truss