Seismic performance of a new precast concrete frame joint with a built-in disc spring

Crack distributions and failure patterns Under a low cycle reciprocating load, the crack formations in the exterior joints and interior joints differ. Regarding the exterior joints, the cracks are primarily focused in the plastic hinge area at the beam end, and there are essentially no cracks in the core region of the joint; however, both […]

Experimental investigation of seismic performance of precast concrete shear walls with overlapping U-bar loop connections

According to the “Specification for Seismic Test of Buildings”44, definitions of relevant mechanical characteristics can be illustrated as follows. The cracking load (Fcr) and cracking displacement (Δcr) refer to the load and deformation at the onset of cracking, respectively. Referring to the corresponding parameters of steel bars shown in Table 3, the specimen was deemed to […]