Experimental Study on the Safety Assessment of Reinforced Concrete Shear Wall Structure with the Correspondence between Damage Image and Index

Table 3

Damage pictures of the seven shear walls.

Specimen	Concrete surface damage	Mortar surface damage	Description of damage phenomena
SW1			The mortar falls in large area, and the concrete is crushed so that some longitudinal reinforcements are exposed
SW2			Corner concrete is yielded, and the longitudinal reinforcements are exposed; specimens’ strength decreases significantly
SW3			All the corner concrete is crushed and peels off; longitudinal reinforcements are broken, and the crushing area continues to develop to the middle of the section
SW4			The concrete at the corner dark column is completely compressed to peel off under the action of repeated load, and the compression longitudinal reinforcements present a lantern shape
SW5			All the concrete at the corner of the compression zone is crushed and peeled off, and some of the tensile longitudinal bars are broken; the compressive longitudinal bars are lantern-shaped
SW6			Many steel bars are broken and sounded; at this time, the cracks at the root of the specimen are large and the specimen is staggered from the root
SW7			The concrete is continuously crushed and peeled off, and the crushed area gradually extends from the corner to the middle of the section; the tensile reinforcements are broken