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RISS 인기검색어
- 검색키워드
- 저자 : Tirca, L. (검색결과 2 건)
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Tremblay, R.,Chen, L.,Tirca, L. Council on Tall Building and Urban Habitat Korea 2014 International journal of high-rise buildings Vol.3 No.1
The tied braced frame (TBF) system was developed to achieve uniform seismic inelastic demand along the height of multi-storey eccentrically braced steel frames. A modular tied braced frame (M-TBF) configuration has been recently proposed to reach the same objective while reducing the large axial force demand imposed on the vertical tie members connecting the link beams together in TBFs. M-TBFs may however experience variations in storey drifts at levels where the ties have been removed to form the modules. In this paper, the possibility of reducing the discontinuity in displacement response of a 16-storey M-TBF structure by introducing energy dissipating (ED) devices between the modules is examined. Two M-TBF configurations are investigated: an M-TBF with two 8-storey modules and an M-TBF with four 4-storey modules. Three types of ED devices are studied: friction dampers (FD), buckling restrained bracing (BRB) members and self-centering energy dissipative (SCED) members. The ED devices were sized such that no additional force demand was imposed on the discontinuous tie members. Nonlinear response history analysis showed that all three ED systems can be used to reduce discontinuities in storey drifts of M-TBFs. The BRB members experienced the smallest peak deformations whereas minimum residual deformations were obtained with the SCED devices.
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Primary Giant Splenic and Hepatic Echinococcal Cysts Treated by Laparoscopy
Oana Stanciulea,Mihai Adrian Eftimie,Iulian Mosteanu,Luiza Tirca,Irinel Popescu 대한내시경복강경외과학회 2017 Journal of Minimally Invasive Surgery Vol.20 No.4
Cystic echinococcosis is a zoonosis caused by the larval stage of Echinococcus granulosus. Liver and lungs are the most commonly affected organs whereas splenic infection is rare and its primary involvement occurs in less than 2% of cases. We report a case of primary giant splenic and hepatic hydatid cyst in a 28-year-old woman who was admitted for upper right quadrant pain. The abdominal ultrasonography and computed tomography showed two cystic tumors with hydatid features in liver and spleen. Total splenectomy was performed for the splenic cyst and partial pericystectomy with drainage for the liver cyst using a laparoscopic approach. One drain was kept in place for two months due to a biliary leak of about 20 ml/day and removed afterward. The patient was discharged on postoperative day 7. Laparoscopic approach for patients with concomitant splenic and hepatic hydatidosis is a safe and effective option.
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