Human Comfort Performance based Life Cylcle Cost Model of High rise Structures Under Wind Load

Abstract:

Based on the percentage of human perception of the vibration of the building under wind load, the human comfort performance of the building was classified into five levels. The maximum acceleration was adopted as the quantitative index of the performance. Pseudo excitation method was employed in the frequency domain analysis for the calculation of the reliabilities of each performance of the super tall building under random wind force. The randomness of the wind speed being taken into consideration, the failure probabilities of the human comfort levels were obtained for the whole life cycle. A failure model for the wind induced human comfort of super tall buildings was derived base on the cost effectiveness criterion. This model evaluated the life cycle cost of the different design schemes, which could help make design choice based on the minimum life cycle cost criteria. It is of great significance to the performance based wind resistant design. The proposed method was applied to the human comfort design choice of a super tall building with tuned mass damper (TMD) device to illustrate its effectiveness and applicability.