C-shaped steel structure applied to roof reinforcement: Fid-Bau Portal

C-shaped steel structure applied to roof reinforcement

OUYANG QI / YANG CHUNXIANG / LIANG WEISHUN

The invention discloses a C-shaped steel structure applied to roof reinforcement. The C-shaped steel structure at least comprises a first plate body, a second plate body and a third plate body which are connected end to end, the first plate body is arranged at the first end of the third plate body, the second plate body is arranged at the second end of the third plate body, the first plate body and the second plate body are approximately parallel to each other, the third plate body is approximately perpendicular to the first plate body, a plurality of reinforcing ribs extending in the first direction are arranged on the inner wall of the first plate body and the inner wall of the second plate body, and the cross sections of the reinforcing ribs are limited by a first arc line bent in the second direction and a second arc line bent in the third direction. According to the C-shaped steel structure, the first arc line can form a first protrusion facing the second direction; the second arcline can further form a second protrusion facing the third direction on the first protrusion; and compared with common reinforcing ribs, the cross section contour line of the structure is longer, andtherefore the structure has higher bending strength.

本发明公开了一种应用于层顶加固的C型钢结构，至少包括首尾连接的第一板体、第二板体和第三板体，第一板体设置于第三板体的第一端，第二板体设置干第三板体的第二端，第一板体和第二板体彼此大致平行，第三板体与第一板体大致垂直，第一板体和所述第二板体的内壁上均设置有若干个条均第一方向延伸的加强筋，加强筋的横截面由朝向第二方向弯曲的第一圆弧线和朝向第三方向弯曲的第二圆弧线限定。本申请中，第一圆弧线能够形成一个朝向第二方向的第一突起。第二圆弧线能够在第一突起上进一步形成一个朝向第三方向的第二突起。该结构相比于普通的加强筋，其截面轮廓线更长，进而具有更大的抗弯强度。

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