초록 ▼

A prefabricated steel frame building structural system which is assembled with nuts and bolts and required no shop welding or site fabrication. The columns and beams in the building are fabricated from lengths of very high strength, light gauge, stiffened C-channel steel stock. Uniquely designed hau

A prefabricated steel frame building structural system which is assembled with nuts and bolts and required no shop welding or site fabrication. The columns and beams in the building are fabricated from lengths of very high strength, light gauge, stiffened C-channel steel stock. Uniquely designed haunch plates and haunch plate stiffener angles are used for column-beam connections and novel ridge plates and ridge plate stiffener angles are used for beam-beam connections to form the two hinged end wall and intermediate frames for the building. Also used are novel corner girt clips for securing the girts to the corner columns; rake purlin angles for securing purlins to the rake beams; and purlin girt clips for securing purlins to the intermediate beams and for securing girts to the intermediate columns. Each of the mentioned components are designed so that they may be used interchangeably at both the left and right sides of the building, there being no specially designed left and right said components. Also disclosed are unique methods of fabricating the purlin girt clips; and of designing a prefabricated steel frame building whose size may be incrementally varied while using the same said components, except for the length and/or gauge of the columns and beams, regardless of the dimensions of the building within a given range of building sizes.

대표청구항 ▼

A frame for a steel frame building having a peaked roof, said frame comprising: left and right columns and left and right beams each comprising a length of non-tapered, C-channel steel stock having a web, interior and exterior flanges at right angles to said web, and a pair of inwardly extending lip

A frame for a steel frame building having a peaked roof, said frame comprising: left and right columns and left and right beams each comprising a length of non-tapered, C-channel steel stock having a web, interior and exterior flanges at right angles to said web, and a pair of inwardly extending lips at right angles to said flanges; left and right steel plates secured with a plurality of fastener means to respective top portions of said left and right columns and to respective eave end portions of said left and right beams, said steel plates connecting, reinforcing and transferring stress between their respective columns and beams; a ridge steel plate secured with a plurality of fasteners to the roof ridge portions of said left and right beams, said ridge steel plate connecting, reinforcing, and transferring loading between its respective beams; left, right, and a pair of ridge stiffener angle members for stiffening and reinforcing said left, right, and ridge steel plates, respectively, and for transferring stress between the respective columns and beams secured to said left, right, and ridge steel plates, said stiffener angle members each having first and second sides disposed at generally right angles with respect to each other, said first side having extensions which extend beyond the ends of said second side and which are disposed at angles with respect to said first side, said second side being secured with a plurality of fastener means to its respective steel plate, said extensions of said left and right stiffener angle members being secured with fastener means to their respective columns and beams which are secured to their respective said left and right steel plates, and the extensions of said pair of ridge stiffener angle members being secured with fastener means to their respective beams which are secured to said ridge steel plate; whereby said steel plates and said stiffener angle members eliminate the need for said columns and beams to have complementary angle cut adjacent ends which are structurally joined together by welding, and also eliminate the need for said columns and beams to be tapered.