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Parametric analysis of steel plated shear structures

Journal of Central South University 2014年第5期21卷 2083-2090页

作者： m.ghassemieh N.Heidari School of Civil Engineering University of Tehran

Due to outstanding ductility and high strength,the steel plate shear wall(SPSW)is recognized as a good lateral system for building structures; particularly as it interacts with earthquake resistant *** study aims to reveal the dynamic and cyclic behavior of steel plated shear *** element method of analysis was implemented in order to simulate the behavior of such a wall *** determine the dynamic behavior of un-stiffened plate shear wall,two different analytical models were *** post buckling strength of steel plate subjected to lateral loading was also *** story shear-drift diagrams of steel shear wall system were *** strength and ductility of the system obtained from the analysis were compared with those of steel shear wall tests reported *** pertinent parameters of the steel shear wall system such as plate thickness,column and beam stiffness and the plate aspect ratio were recognized and their effects were *** effect of stiffeners on the behavior of the SPSW was also investigated.

关键词：镀钢钢板剪力墙剪结构动态行为墙体结构有限元方法建筑结构抗震设计

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Seismic performance and comparison of three different I beam to box column joints

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Earthquake Engineering and Engineering Vibration 2014年第4期13卷 717-729页

作者： Z.Saneei Nia A.mazroi m.ghassemieh H.Pezeshki School of Civil Engineering College of Engineering University of Tehran Department of Civil Engineering Central Branch of Azad University Building and Housing Researching Center

Despite the inherently advantages of the box column, finding the best option for the I beam to the box column connection is the main challenge in using the box column as a structural member for special moment frames. In this paper, the seismic performance of urtreinforced connection, weakened connection and strengthened connection was evaluated through a comprehensive experimental program. The seismic comparisons were fabricated by assessing the strength, ductility and energy dissipation in each configuration. Three full scale tests with several connections were carried out. All the specimens were subjected to cyclic loading and prior to failure by forming a plastic hinge in the beam, all the connections managed to reach an inelastic rotation of more than 6.0% rad. The experimental and analytical results showed that the seismic performance of the strengthened connection with flange and shear plates turned out to be the most effective in the beam to the box column connection. moreover, the normalized stress distribution of the continuity plates revealed that the possibility of the weld fracture in unreinforced connection is more than other specimens.

关键词： box column special moment frame unreinforced connection weakened connection strengthened connection seismic comparison

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维普期刊数据库

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地震激励下形状记忆合金阻尼器在结构被动控制中的应用

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钢结构 2008年第6期23卷 84-84页

作者： S.A. motahari m. ghassemieh S.A. Abolmaali

在阻尼器中应用不同的形状记忆合金材料,使结构具有有效的耗能及恢复能力。采用不同方法,将4个阻尼系统应用到抗震结构系统当中。利用改进的破坏指示器对结构系统性能进行评测对比。结构损伤、非结构性损伤和系统中其他部件的永久变形... 详细信息

在阻尼器中应用不同的形状记忆合金材料,使结构具有有效的耗能及恢复能力。采用不同方法,将4个阻尼系统应用到抗震结构系统当中。利用改进的破坏指示器对结构系统性能进行评测对比。结构损伤、非结构性损伤和系统中其他部件的永久变形在不同的地面加速度时程中都予以考虑。结果表明,甚至在剧烈地面运动之后,SmA阻尼器在减少残余变形方面仍然非常有效。

关键词：阻尼器形状记忆合金被动控制地震激励损伤指数

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维普期刊数据库

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