The invention discloses a large-sized closed roof formed by a light steel truss arch for a building, which comprises truss arch racks (34) of a rectangular roof and truss arch racks (34) of a circular roof. One end of each truss arch rack (34) is movably arranged on a corresponding concrete column (1) while the other end of the truss arch rack (34) is fixedly arranged on the corresponding concrete column (1), each truss arch rack consists of a lower beam (6), an upper beam (2), a suspender (35), an inclined rod (4) and a steel cable (5), a plurality of short rectangular steel bars are connected via steel hinge pins (14) to form each arc-shaped upper beam, a plurality of short rectangular steel clamp plates (8) are connected with bolts (7) to form each lower beam, two ends of each upper beam are fixed on the corresponding lower beam via tongue-and-groove steel wedges (12), one end of each lower beam can freely stretch and retract on the corresponding concrete column via a steel drum (10), the other end of each lower beam is fixed on the corresponding concrete column, and two ends of each inclined rod are movably connected with the corresponding upper beam and the corresponding lower beam. The roof is compact in structure, light in weight, fine in rigidity, high in anti-seismic capacity and structural stability, low in construction cost, convenient in construction and short in construction period, and can meet service requirements of a large-span stadium without struts in the middle, a culture and entertainment center, wharf, a large-sized airplane roof and the like.

Title
Large-sized closed roof formed by light steel truss arch for building
Application Number
201210095464
Publication Number
102605885A
Application Date
April 2, 2012
Publication Date
July 25, 2012
Inventor
Zhang Peicong
Agent
zhang fangqiang
Assignee
Zhang Peicong
IPC
E04B1/342
E04B1/32
E04B7/14
E04B7/00