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1
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2
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3
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4
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5
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6
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2
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1.
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2
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3
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25Z6
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4
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28
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2
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4
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2.
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1
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40H8/f7
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2
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40H8/js7
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3
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40H8/t7
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1
锛夎В锛氱敱
蠁
40H8/f7
鏌ヨ〃寰?/p>
T
D
=39
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m ES=39
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m EI=0
Td=25
锝?/p>
m es=-25
锝?/p>
m ei=-50
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m