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131.
This article proposes a damage index for the seismic analysis of Reinforced Concrete members using the hysteretic energy dissipated by a structural member and a drift ratio related to failure in the structure. The index was calibrated against observed damage in laboratory tests of 76 RC column units under various protocols. Values obtained in this calibration had acceptable agreement with the levels of damage observed in the test specimens. An analysis of the parameters involved in the definition of the proposed damage index shows the importance of displacement history in the drift ratio capacity of structures. 相似文献
132.
Sangki Park Daniel Cox Rakesh Gupta Francisco Aguiniga 《Journal of Earthquake Engineering》2013,17(6):851-863
Over the last half century, scientists and engineers have developed methods to better understand and mitigate the damage caused by tsunamis. According to U.S. Federal Emergency Management Agency (FEMA) P646, buildings in many regions, including the U.S. Pacific Northwest, will experience substantial ground shaking from an offshore earthquake that precedes a tsunami and then experience the tsunami forces themselves. Thus, both hazards should be considered in computing the damage and collapse risk to buildings. This article summarizes a basic approach to numerically consider the successive seismic and tsunami risk to buildings in near-field tsunami regions such as the U.S. Pacific Northwest. 相似文献
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Daniel E. Sutherland 《American Nineteenth Century History》2013,14(1):61-73
The colorful and controversial life of American artist James Abbott McNeill Whistler took many twists and turns. One of the most dramatic and least explicable of the turns came in 1866, when he traveled to Valparaiso, Chile. Generations of Whistler biographers have been puzzled by the reasons for this sojourn, but a recently discovered collection of documents provides significant clues for solving the mystery. Whistler, it seems, had become involved in a scheme to provide weapons to the Chilean navy in a war against Spain. The scheme turned into a fiasco, dashing Whistler’s hopes of handsome financial profits, but his weeks in South America significantly shaped his development as an artist. 相似文献
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Jonathan Daniel Wells 《American Nineteenth Century History》2013,14(2):165-182
Recent work on southern women and intellectual life in the nineteenth‐century South has focused on women novelists. Relatively little scholarly attention has been paid to literary periodicals as important vehicles through which women earned financial reward and often regional or national reputations as authors and editors. Perhaps most significantly, southern women viewed periodicals as opportunities to speak out boldly on politics and current events, much more so than in the novel. The wide availability after 1820 of magazines and newspapers, made possible by their low cost and portability, provided the perfect forum for women who wished to push against traditional gender boundaries. In examining southern women’s contributions to early nineteenth‐century periodical culture, one sees a vital part of the foundation being laid for later movements for women’s suffrage. 相似文献
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