| 摘要 |
There is provided semi-butterfly connecting clamp and a building steel framework joint structure mainly used for connection of a building steel framework, wherein the connecting clamp comprises a bearing plate, a L-shaped self-locking block, a bolt and a spring, L-shaped clamp wings are respectively provided on both left and right ends of the bearing plate, the clamp wing is integrally formed by a pre-tightening plate and a self-locking fastening plate, the self-locking fastening plate has at least two through holes, the pre-tightening plate has at least one through hole, the end of the self-locking fastening plate near the bearing plate has a groove, a wedge-shaped piece with an inclining upper surface is placed on the upper surface of the self-locking fastening plate at the position near the groove, and a locking bolt hole is formed in the wedge-shaped piece, a transverse rod on the upper part of the self-locking block is placed with a through hole, a vertical rod under the transverse rod is inserted into the groove and fit thereto, the surface of the groove facing to the groove opening is perpendicular to the upper surface of the wedge-shaped piece, the bolt is fastened with the locking bolt hole together through the through hole and the spring located on the bolt shank. The connecting clamp according to the present invention facilitates adjustment of the connection with a cross beam and the retaining space of the connecting clamp can be conveniently adjusted according to the size of the retained vertical column, and it can weaken the destruction action of the applied outside force on the building steel framework when the outside force is acting on the connecting clamp. |
