@ N P n D F , . l n 0 2 L N ȽȮȽȽȽȽȽ hcn hcn H*OJ QJ hcn 5OJ QJ o( j hcn 5OJ QJ Uo(hcn hcn OJ QJ hcn hcn 5OJ QJ hcn hcn 5OJ QJ o( hcn hcn 5CJ( OJ PJ hcn hcn 5CJ( OJ PJ o(; X * 6 : H | f x 2 p B p $ a$ gdcn $a$gdcn 4 r 4 r z ~ R r n $ a$ gdcn x & d V x 0 P 8 ~ b $ a$ gdcn 2 R | X , <* r* * $+ F+ + + , D, , , , - t- - D. $ a$ gdcn N " * * * + + + + + + / / / l1 p1 x1 |1 1 1 1 1 p2 t2 2 2 2 X3 h3 j3 7 7 r7 t7 7 8 j8 l8 8 8 8 T9 V9 9 9 9 9 : : : : : : \; ^; ; ; ; ; < < < < < < < hcn hcn H*OJ QJ hcn hcn 5OJ QJ hcn hcn 5OJ QJ o( Uhcn hcn H*OJ QJ hcn hcn OJ QJ G= 2 . 4 0 0 / ( 1 8 . 0 0 0 + 1 3 . 8 2 4 ) = 0 . 0 7 5 m V e y d"B y / 6 = 0 . 1 3 3 y eT\OP_ P m a x _ y = ( F + G ) / A + 6 * | M d x | / ( B y 2 * B x ) = ( 1 8 . 0 0 0 + 1 3 . 8 2 4 ) / 0 . 6 4 0 + 6 * | 2 . 4 0 0 | / ( 0 . 8 0 0 2 * 0 . 8 0 0 ) = 7 7 . 8 5 0 k P a P m i n _ y = ( F + G ) / A - 6 * | M d x | / ( B y 2 * B x ) = ( 1 8 . 0 0 0 + 1 3 . 8 2 4 ) / 0 . 6 4 0 - 6 * | 2 . 4 0 0 | / ( 0 . 8 0 0 2 * 0 . 8 0 0 ) = 2 1 . 6 0 0 k P a 1 . 3 V M d x `"0 M d y `"0 P m a x = P m a x _ x + P m a x _ y - ( F + G ) / A = 9 1 . 9 1 2 + 7 7 . 8 5 0 - ( 1 8 . 0 0 0 + 1 3 . 8 2 4 ) / 0 . 6 4 0 = 1 2 0 . 0 3 7 k P a 1 . 4 {0WWQSRg
0 , M d y > 0 dkW@x:NSTS/_
2 . {I - I *bb/_w
V e x d"B x / 6 = 0 . 1 3 3 m x eT\OP_
a = ( B x - b c ) / 2 = ( 0 . 8 0 0 - 0 . 5 0 0 ) / 2 = 0 . 1 5 0 m
P j 1 = ( ( B x - a ) * ( P m a x _ x - P m i n _ x ) / B x ) + P m i n _ x - G / A
= ( ( 0 . 8 0 0 - 0 . 1 5 0 ) * ( 9 1 . 9 1 2 - 7 . 5 3 8 ) / 0 . 8 0 0 ) + 7 . 5 3 8 - 1 3 . 8 2 4 / 0 . 6 4 0
= 5 4 . 4 9 2 k P a
V e y d"B y / 6 = 0 . 1 3 3 m y eT\OP_
a = ( B y - h c ) / 2 = ( 0 . 8 0 0 - 0 . 5 0 0 ) / 2 = 0 . 1 5 0 m
P j 2 = ( ( B y - a ) * ( P m a x _ y - P m i n _ y ) / B y ) + P m i n _ y - G / A
= ( ( 0 . 8 0 0 - 0 . 1 5 0 ) * ( 7 7 . 8 5 0 - 2 1 . 6 0 0 ) / 0 . 8 0 0 ) + 2 1 . 6 0 0 - 1 3 . 8 2 4 / 0 . 6 4 0
= 4 5 . 7 0 3 k P a
x = 1 . 0 4 9
y = 1 . 0 4 0
M I _ 1 = 1 / 4 8 * x * ( B x - b c ) 2 * ( 2 * B y + h c ) * ( P j 1 + P j m a x _ x )
= 1 / 4 8 * 1 . 0 4 9 * ( 0 . 8 0 0 - 0 . 5 0 0 ) 2 * ( 2 * 0 . 8 0 0 + 0 . 5 0 0 ) * ( 5 4 . 4 9 2 + 7 0 . 3 1 3 )
= 0 . 5 2 k N * m
M I I _ 1 = 1 / 4 8 * y * ( B y - h c ) 2 * ( 2 * B x + b c ) * ( P j 2 + P j m a x _ y )
= 1 / 4 8 * 1 . 0 4 0 * ( 0 . 8 0 0 - 0 . 5 0 0 ) 2 * ( 2 * 0 . 8 0 0 + 0 . 5 0 0 ) * ( 4 5 . 7 0 3 + 5 6 . 2 5 0 )
= 0 . 4 2 k N * m
AS N0{MK{
1 0 . 1 {A s x
A s x _ 1 = o * M I _ 1 / ( 0 . 9 * ( H - a s ) * f y )
= 1 . 0 0 * 0 . 5 2 * 1 0 6 / ( 0 . 9 * ( 2 0 0 . 0 0 0 - 4 0 . 0 0 0 ) * 2 7 0 )
= 1 3 . 3 m m 2
A s x 1 = A s x _ 1 = 1 3 . 3 m m 2
A s x = A s x 1 / B y = 1 3 . 3 / 0 . 8 0 0 = 1 7 m m 2 / m
A s x = m a x ( A s x , m i n * H * 1 0 0 0 )
= m a x ( 1 7 , 0 . 1 5 0 % * 2 0 0 * 1 0 0 0 )
= 3 0 0 m m 2 / m
bK{01 0 @ 2 0 0 , [Mby:N3 9 3 m m 2 / m 0
1 0 . 2 {A s y
A s y _ 1 = o * M I I _ 1 / ( 0 . 9 * ( H - a s ) * f y )
= 1 . 0 0 * 0 . 4 2 * 1 0 6 / ( 0 . 9 * ( 2 0 0 . 0 0 0 - 4 0 . 0 0 0 ) * 2 7 0 )
= 1 0 . 7 m m 2
A s y 1 = A s y _ 1 = 1 0 . 7 m m 2
A s y = A s y 1 / B x = 1 0 . 7 / 0 . 8 0 0 = 1 3 m m 2 / m
A s y = m a x ( A s y , m i n * H * 1 0 0 0 )
= m a x ( 1 3 , 0 . 1 5 0 % * 2 0 0 * 1 0 0 0 )
= 3 0 0 m m 2 / m
bK{01 0 @ 2 0 0 , [Mby:N3 9 3 m m 2 / m 0
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