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- W774215377 abstract "A large number of column-bracing systems were modeled and analyzed by second-order analysis using finite element program ANSYS,in which the random combination of the initial imperfections between columns and horizontal braces was well considered by Monte Carlo Method.According to the analysis results,four kinds of instability modes of column-bracing systems were found,the probability density function of the mid-height horizontal bracing forces was established based on probability statistics,and the design bracing forces were also obtained.The results indicated that the above design bracing forces are smaller than that proposed by the Code for design of steel structures(GB50017-2003) when the top axial compressions on the braced columns are equal,and much smaller than the latter when the top axial compressions on the braced columns are unequal.The results also indicated that the random combination of the initial imperfections between columns and horizontal braces leads to the randomness of the mid-height horizontal bracing forces in compression or in tension,so that the design bracing forces can be reduced." @default.
- W774215377 created "2016-06-24" @default.
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- W774215377 date "2011-01-01" @default.
- W774215377 modified "2023-09-23" @default.
- W774215377 title "Analysis on column-bracing forces considering random initial imperfections" @default.
- W774215377 hasPublicationYear "2011" @default.
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