Structure for improving stress performance of hangar

The invention discloses a Structure for improving stress performance of a hangar. The hangar is a structure with three supporting sides and one opening side of a roof (1); the structure is to outwards stir up the roof (1) of the hangar along a span direction and form telescopic beams (2) at both sides of the roof (1); tension rods (4) are arranged between two side end parts of the telescopic beams (2) and the root part of the supporting pillar of the roof (1); the arrangement method of the tension rods (4) is one as below: (1) two tension rods (4) are arranged between end part of both sides or end part of one side of the telescopic beams (2) and the root part of a hangar gate truss supporting pillar (3) at the same side; (2) two tension rods (4) are arranged between the end parts at both sides or the end part of one side of the telescopic beams (2) and the root part of the hangar gate truss supporting pillar (3) at the same side; besides, the tension rods (4) are arranged between the end part of both sides or end part of one side of the telescopic beams (2) and the root part of a hangar roof supporting pillar (5) at the same side. Through downwards effective tension of the end parts of the telescopic beams, the structure can reduce the internal force peak value of the roof, and improve the roof stressing and deformation performances.