high-rise building structure wall cracks due to non-standard construction and earthquakes, causing structural problems and cracks

architect background break building caution cement collapse collapsed concept concrete construction control corner crack crash crisis damage danger dangerous defect destruction earthquake effect engineering examining extension foundation fracture home house line old problem problems renovated repair rift rough scratch separated separation showing split structure substandard surface textured unsafe wall warning highrise cracks nonstandard earthquakes causing structural walls waiting engineer 39aph39 inspection fix