Rehabilitation of a high-rise coupled shear wall system in a 56-storey residential reinforced concrete building (Tehran Tower), based on nonlinear dynamic time-history analyses

摘要

Tehran Tower is a 56-storey reinforced concrete tall building consisting of three wings with identical planndimensions each approximately 48 m by 22 m. The three wings are at 120° from each other and have nonexpansions/seismic joints. This paper contains the consideration of the rehabilitation of the Tehran Towernbased on the fi ndings of an exhaustive investigation of the nonlinear performance evaluation efforts. It hasntried to show the procedure followed, methodologies utilized and the results obtained for life-safety (LS)nand collapse-prevention (CP) evaluations of the building. Moreover, the weak zones of the structure duento analysis results are introduced and appropriate retrofi t technique for satisfaction related to LS and CPncriteria is presented. In this project, to improve the local behaviour of coupling panels that are regularlynlocated in spine walls, and defi nitely have been recognized as the most vulnerable structural elements,nmaking use of steel plates that are connected to concrete members by chemical anchors has been used asnthe best rehabilitation method for this case. Therefore, in the fi nal section, the professional practical methodnutilized to perform the aforementioned project is explained. Copyright © 2010 John Wiley & Sons, Ltd.