Connecting joint of hollow bolt sphere filled with steel fiber concrete net rack and manufacturing method of connecting joint

The invention discloses a connecting joint of a hollow bolt sphere filled with steel fiber reinforced concrete net rack and a manufacturing method. The connecting joint comprises a net rack chord member, the hollow bolt sphere, a high-strength bolt, a single-side concave sleeve, a grouting hole, steel fiber reinforced concrete and the like. The hollow bolt ball is formed by welding two hollow hemispheres, a threaded hole, a grouting hole and an exhaust hole are formed in the hollow bolt ball, and the high-strength bolt penetrates through the conical head and the single-side concave sleeve and is screwed into the threaded hole of the hollow bolt ball; the single-side concave sleeve is connected with the high-strength bolt through a pin; by rotating the single-side concave sleeve, the high-strength bolt is driven to rotate and screwed into the threaded hole of the hollow bolt ball; external threads are arranged at the end parts of the grouting pipe and the exhaust pipe and are screwed on the hollow bolt ball, a