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Finite element investigation of steel built-up shear links subjected to inelastic deformations

Earthquake Engineering and Engineering Vibration 2004年第2期3卷 195-203页

作者： Peter Dusicka Ahmad M.Itani ian g.buckle Department of Civil and Environmental Engineering Portland State UniversityP O.Box 751PortlandOregon97207USA Assistant Professor Department of Civil Engineering Mail Stop 258University of NevadaRenoNevada89557USA Associate Professor Department of Civil Engineering Mail Stop 258University of NevadaRenoNevada89557USA Professor

Non-linear finite element models accounting for large displacements have been used to investigate the behavior of steel built-up shear links that had previously been tested using large-scale experiments. The links were designed using steel grades with yield points ranging from high to low strengths. The objectives of the numerical analyses were to further investigate the non-linear behavior and to correlate the numerical results with experimental observations. Elasto-plastic as well as cyclic stress-strain material properties were incorporated to study the influence of material behavior on the overall shear link response. Non-linear monotonie analyses of the shear links incorporating the cyclic stress-strain steel properties resulted in similar trends in the response as the backbone curves recorded from the physical experiments. The numerical models of built-up shear links utilizing structural grade steels closely correlated to the experimentally recorded shear strength. Models utilizing low yield point steels overestimated the shear strength, which was caused by the characteristics of cyclic behavior of those steels. The detailed numerical models also allowed for investigation of the plastic strain demands on the different components of the link. It was shown that finite element models combined with appropriate stress-strain relationship may be used with confidence to check the design of shear links of different steel grades and sectional geometries.

关键词： finite element investigation steel built-up shear link inelastic deformation

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Highway bridge seismic design:summary of FHWA/MCEER project on seismic vulnerability of new highway construction

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Earthquake Engineering and Engineering Vibration 2002年第1期1卷 10-19页

作者： ian M.Friedland ian g.buckle george C.Lee Applied Technology Council 1300 Pennsylvania Ave NWSuite 700Washington D.C.20004USA Associate Director for Development Department of Civil Engineering University of Nevada-RenoMail Stop 258RenoNevada89557USA Professor Multidisciplinary Center for Earthquake Engineering Research.University at Buffalo.Red Jacket Quadrangle.Buffalo.New York 14260.USA Samuel P.Capen Professor

The Federal Highway Administration (FHWA) sponsored a large,multi-year project conducted by the Multidisciplinary Center for Earthquake Engineering Research (MCEER) titled'Seismic Vulnerability of New Highway Construction'(MCEER Project 112),which was completed in *** coordinated the work of many researchers,who performed studies on the seismic design and vulnerability analysis of highway bridges,tunnels,and retaining structures. Extensive research was conducted to provide revisions and improvements to current design and detailing approaches and national design specifications for highway *** program included both analytical and experimental studies,and addressed seismic hazard exposure and ground motion input for the *** system;foundation design and soil behavior: structural importance,analysis,and response:structural design issues and details;and structural design criteria.

关键词： Seismic design specifications bridges seismic hazard exposure ground motion input structural response analysis foundation design soil behavior

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复杂造型建筑落地式超高超跨支模架的设计与施工

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建筑技术 2021年第7期52卷 844-847页

作者：陈建兰邵湘阳蒋锦洋王佳铭义乌工商职业技术学院浙江义乌322000 广宏建设集团有限公司浙江东阳322100

某商住楼施工中,针对建筑造型复杂、外挑悬梁多、钢桁架难以整体提升等难点,采用落地式满堂起高支模架搭设平台,在平台上进行钢桁架散件安装的方案,应用工具式盘扣支撑架结合B1M技术保证了施工安全,圆满地完成了钢桁架施工。

关键词：复杂造型建筑落地式模架高大支模架

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