Peikko
New column connection for seismic-proof construction
Early precast designs showed less than perfect earthquake performance. Common reasons for the failures were inadequate detailing, poor workmanship and lack of continuity or redundancy in the structure. Further, there weren’t any design guidelines for precast concrete structures used in seismic areas.
So far, engineers have favored cast-in-situ concrete structures out of habit or used precast alternatives like protruding bars and hybrid or handmade connections for seismic applications. However, there is no clear evidence about their seismic behavior, nor usage risk evaluations.
