METHOD FOR EVALUATING A DAMAGE RATE OF A MULTI-STORY STRUCTURE, CAPABLE OF QUANTITIVELY EVALUATING A PARTIAL DAMAGED EXTENT PER STORIES

摘要

PURPOSE: A method for evaluating a damage rate of a multi-story structure is provided to measure the acceleration per each story of a multi-story structure and to calculate damage-induced deflection with the acceleration per each story of a multi-story structure, thereby quantitively evaluating the damaged extent of each storey at a rate of damage-induced inter-story deflection and modal flexibility based deflection.;CONSTITUTION: A method for evaluating a damage rate of a multi-story structure is as follows. Acceleration signals with respect to a multi-story structure are measured for predetermined time in several stories by using an accelerometer(S10). Modal flexibility matrixes with respect to several stories are calculated based on the measured acceleration signals(S20). Each modal flexibility based deflection of each story is calculated by applying a positive shear inspection load to a modal flexibility matrix(S30). Inter-story deflections of each story caused by a difference between the modal flexibility matrix deflections adjacent to each other are calculated(S40). Damaged-induced inter-story deflection of each stories caused by a difference between the modal flexibility based deflection and a reference modal flexibility based deflection are calculated(S50). An inter-story damage rate is calculated with a rate of the damaged-induced inter-story deflection with respect to the inter-story deflection per each story.;COPYRIGHT KIPO 2012