What is the difference between rigid connection and hinge in steel structure?. Are all high strength bolts connected just now?
The difference between the rigid connection and the hinge is whether the support passes the bending moment. Rigid transfer moment, hinge not transfer moment. Simply supported is hinged, solid support is rigid. High strength bolts are mainly used for shearing, and whether they are connected directly or not.
If the steel column base section reduced, ribbed or not and anchor bar closer to the section is more biased hinge. Whether the beam has been joined or not, the simpler way is to see if the flange is welded. If welding is partial to the line, if it is not welded, it will hinge on the hinge.
In fact, steel joints are generally difficult to be made of pure rigid joint or pure hinge. Likewise, different arrangement of different performance such as rigid hinged pillars generally stiffened column base, anchor bars in the bottom edge is more rigid.
