Abstract: A building system is disclosed comprising a beam and column connection particularly suited for mass timber buildings. A first connection arrangement comprises a projection and slot arrangement with the beam being supported on an upwardly facing bearing surface. A second connection arrangement may be provided to tie the column to the beam. The system also discloses arrangements to accommodate greater tolerance at the connection and to provide an ability to accommodate limited rotation under dynamic loading.

Abstract: A coupling system is described comprising an anchor that may releasably connect to a coupled member. Associated tools configured to cooperate with the coupling system and methods of use of the coupling system and release or re-engagement of the coupling system are also described. In one embodiment, the coupling system may further comprise an enclosing member and release member and a related tool or tools to actuate release of the connection and re-engage of the connection as desired.