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However, the height\u2010wise distribution of slip loads can significantly affect the seismic performance of the strengthened frames. In this study, a practical design methodology is developed for more efficient design of friction wall dampers by performing extensive nonlinear dynamic analyses on 3\u2010, 5\u2010, 10\u2010, 15\u2010, and 20\u2010story RC frames subjected to seven spectrum\u2010compatible design earthquakes and five different slip load distribution patterns. The results show that a uniform cumulative distribution can provide considerably higher energy dissipation capacity than the commonly used uniform slip load pattern. It is also proved that for a set of design earthquakes, there is an optimum range for slip loads that is a function of number of stories. Based on the results of this study, an empirical equation is proposed to calculate a more efficient slip load distribution of friction wall dampers for practical applications. The efficiency of the proposed method is demonstrated through several design examples.<\/jats:p>","DOI":"10.1193\/110316eqs190m","type":"journal-article","created":{"date-parts":[[2017,6,5]],"date-time":"2017-06-05T11:29:26Z","timestamp":1496662166000},"page":"1033-1052","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":38,"title":["A Practical Method for Optimum Seismic Design of Friction Wall Dampers"],"prefix":"10.1002","volume":"33","author":[{"given":"Neda","family":"Nabid","sequence":"first","affiliation":[{"name":"Department of Civil Engineering The University of Sheffield Sheffield UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Iman","family":"Hajirasouliha","sequence":"additional","affiliation":[{"name":"Department of Civil and Structural Engineering The University of Sheffield Sheffield UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mihail","family":"Petkovski","sequence":"additional","affiliation":[{"name":"Department of Civil and Structural Engineering The University of Sheffield Sheffield UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2017,8]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.soildyn.2012.08.010"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1193\/1.1585720"},{"key":"e_1_2_8_4_1","unstructured":"American Concrete Institute 2014.Building Code Requirements for Structural Concrete (ACI 318\u201014) and Commentary on Building Code Requirements for Structural Concrete (ACI 318R\u201014) Farmington Hills MI."},{"key":"e_1_2_8_5_1","unstructured":"American Society of Civil Engineers (ASCE) 2010.Minimum Design Loads for Buildings and Other Structures. 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