type 3 semi-rigid moment connections
type 3 semi-rigid moment connections
(OP)
regarding type 3 semi rigid moment connections
(aisc asd pg 4-100)--
designed to rotate under gravity loads but resist wind
moments--as a practical matter, (3 story bldg: 475 ft long
by 175 ft wide) how critical is the unwelded length
of 1.5x flange width
for the top flange plate for the successful performance
of this type of connection?
(aisc asd pg 4-100)--
designed to rotate under gravity loads but resist wind
moments--as a practical matter, (3 story bldg: 475 ft long
by 175 ft wide) how critical is the unwelded length
of 1.5x flange width
for the top flange plate for the successful performance
of this type of connection?





RE: type 3 semi-rigid moment connections
HTH, Scott
RE: type 3 semi-rigid moment connections
My problem is a bldg which is essentially finished and not enough length was provided for the semi rigid mom conn
flange plates to elongate,properly --4" instead of 8".
We are talking about a couple of w16x26 roof beams
spanning 30ft with 30k-ft wind moments. If the semi rigid
mom conn worked perfectly the wind drift would be 1.5". If
the structure was analized assuming pinned conn where the semi rigid joints currently are the wind drift would be 1.75".
Does it make sense to go back into a finished bldg ( mech
ducts,elect conduit,wall board etc)and correct these welds?
What is going to happen if left as is?