• Steel and Composite Structures
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• 제46권5호
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• pp.621-635
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• 2023

The combination of replaceable and repairable properties in structures has introduced new approach called "Low Damage Design Structures". These structural systems are designed in such a way that through self-centering, primary members and specific connections neither suffer damage nor experience permanent deformations after being exposed to severe earthquakes. The purpose of this study is the seismic assessment of steel moment resisting frames with the aid of rigid rocking cores. To this end, three steel moment resisting frames of 4-, 8-, and 12-story buildings with and without rocking cores were developed. The nonlinear static analysis and incremental dynamic analysis were performed by considering the effects of the vertical and horizontal components of 16 strong ground motions, including far-fault and near-fault arrays. The results reveal that rocking systems benefit from better seismic performance and energy dissipation compared to moment resisting frames and thus structures experience a lower level of damage under higher intensity measures. The analyses show that the interstory drift in structures equipped with stiff rocking cores is more uniform in static and dynamic analyses. A uniform interstory drift distribution leads to a uniform distribution of the bending moment and a reduction in the structure's total weight and future maintenance costs.

• 영어영문학
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• 제54권4호
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• pp.443-459
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• 2008

This paper examines the discourse of masturbation in modern England and aims to re-draw the map of male sexuality related to such issues as nation, empire, family, and economy. It argues that the discourse of masturbation in modern England reflects national anxieties for the future of empire and an economic concern for unproductive sexual behavior, which were the main factors to transform masturbation into "solitary vice." The anxieties about empire and British dominance were constituted as the core of the anti-masturbation discourse on the boys. The imperial destiny was regarded to depend on the protection of the middle- and upper-class boys from the harmful psychological and physiological effects of masturbation represented in Lawrence's "The Rocking-Horse Winner." In the case of a single male, the concern for masturbation is constructed as a concern about economy, family, and human solidarity. As seen in Eliot's Silas Marner, the act of masturbation was condemned as the fulfillment of illegitimate sexual desire outside the familial sphere and a commercial economy, and thus without the possibility of human community. Silas Marner and Meredith's The Ordeal of Richard Feverel show the ways of reconstituting sexual others as normalized subjects: Boys were forced to be asexual through the regime of surveillance; and a single male was required to enroll in a remedial course on familial respectability.

• 한국강구조학회 논문집
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• 제23권4호
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• pp.405-415
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• 2011

건축물의 안전한 내진설계를 위해서는 층간변위비 뿐만 아니라 부재에 요구되는 소성변형을 평가하여야 한다. 본 연구에서는 복잡한 비선형해석 없이 탄성해석을 사용하여 강기둥-약보로 설계된 철골 특수모멘트골조의 보에 요구되는 소성변형을 평가하는 간편한 방법을 개발하였다. 개발한 방법은 탄성해석 결과를 근거로 모멘트 재분배, 기둥 단면치수 및 보 소성힌지 이동, 패널존 변형, 중력하중, 변형경화 거동 등을 고려하여 보의 소성변형각을 직접적으로 예측한다. 또한 가새골조 또는 코어벽 등 횡력 저항구조와 모멘트골조의 상호 작용인 로킹 효과 고려한다. 검증을 위하여 강기둥-약보로 설계된 6층 특수모멘트골조에 제안된 방법을 적용하여 보의 소성변형각을 예측하고, 그 결과를 비선형 해석 결과와 비교하였다. 검증 결과, 제안된 방법은 설계 변수에 따른 보의 소성변형각을 합리적으로 예측하는 것으로 나타났다.