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Najif Ismail 《International Journal of Architectural Heritage》2016,10(7):829-840
Performance of wall to diaphragm (WD) anchors in heritage unreinforced masonry (URM) buildings during the recent New Zealand earthquake series is commented on, detailing typical failure modes. Current building code provisions for the design of masonry anchors are discussed and overview of an associated experimental program investigating the effectiveness of a relatively new type of retrofit WD anchors is presented. A total of 40 anchors were tested for pull out capacity (POC), of which 30 were installed in salvaged heritage material assemblages and 10 were tested in-situ at a heritage URM building. The POC of anchors ranged from 13.01 kN to 23.12 kN when installed in a heritage URM wall and between 9.54 kN and 12.16 kN when driven from side into two consecutive floor joists of a heritage timber diaphragm. Investigated also were the effects of embedment length, installation quality, anchor location, condition of masonry, and condition of substrate materials on anchor performance. 相似文献
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Sepehr Zabih Brian Spooner Rudi Paul Linder Mangol Bayat Val Moghaddam Ismail Ajami 《Iranian studies》1984,17(1):93-132
Eastern Armenia in the Last Decades of Persian Rule, 1807–1828: A Political and Socioeconomic Study of the Khanate of Erevan on the Eve of the Russian Conquest. By George A. Bournoutian. Studies in Near Eastern Culture and Society, Vol. 5. Malibu: Undena Publications, 1982. 290 + 22 pp. $34.00 (cloth), $29.00 (paper).
Modern Islamic Political Thought. By Hamid Enayat. Austin: University of Texas Press, 1982. x + 225 pp. $8.95 paper.
Economic Origins of the Iranian Revolution. By Robert E. Looney. New York and Oxford: Pergamon Press, 1982. 302 pp. $32.50 cloth.
Mavane'‐ye Tarikhi‐ye Roshd‐e Sarmayehdari Daz Iran: Doureh‐ye Qajar. By Ahmad Ashraf. Tehran: Intesharat‐e Zamineh, 1359 H. Sh. 172 pp.
Epic Images and Contemporary History: The Illustrations of the Great Mongol “Shahnama.” By Oleg Grabar and Sheila Blair. Chicago: University of Chicago Press, 1980. 210 pp., 6 color plates, 58 black & white illustrations, 8 figures, index. $27.50. 相似文献