高层钢框架的非线性响应分析

doi:10.11835/j.issn.1674-4764.1992.02.002

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高层钢框架的非线性响应分析
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                        10.11835/j.issn.1674-4764.1992.02.002
                    
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基金项目:国家自然科学基金，博士点专项科研基金

NONLINEAR RESPONSE STUDIES OF TALL STEEL FRAMES

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摘要:

几何非线性对高层钢框架的影响较大。本文比较系统地归纳了各种坐标系下几何非线性的分析方法,并给出了其相应的切线刚度矩阵的显式,解释了切线刚度阵的各项非线性性质的几何意义及其简易推导方法。利用建立的同时考虑材料非线性和几何非线性性质的杆单元切线和割线刚度矩阵编制了电算程序,该程序能求解高层多跨钢框架的极限承载力。

Abstract:

Considerable eftects of geometric nonlinearity upon tallsteel frames and flexibly jointed steel frames are recognized.Systematicanalysis philosophy of geometric nonlinearity under various coordinatesystems and its corresponding explicit expression of tangent stiffness matrices are comprehensively embodied.The entries in tangent stiffnessmatrices with its nonlinear behavior and its abstrusely implied physicmeanings are expounded and a straight forward derivation technique ofnonlinear matrices is given.A computer algorithm which can performwhole range studies of steel frames by considering geometric and materialnonlinearities up to the ultimate load carrying capacity is implemented.

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刘小强,吴惠弼.高层钢框架的非线性响应分析[J].土木与环境工程学报（中英文）,1992,14(2). Liu Xiaoqiang, Wu Huibi Department of Civil Engineering. NONLINEAR RESPONSE STUDIES OF TALL STEEL FRAMES[J]. JOURNAL OF CIVIL AND ENVIRONMENTAL ENGINEERING,1992,14(2).10.11835/j. issn.1674-4764.1992.02.002

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