k q m q m m 0 0 ) 2 2 .. 2 2 .. 1 2 1 1 .. 2 2 .. 1 2 1 ( q k q m q m q k q m q m m 0 ) 2 ( ) 0 ) ( ) 2 2 2 1 1 1 .. 2 2 2 2 1 .. 1 2 1 2 1 1 1 .. 2 2 1 .. 1 2 1 ( ) 4 2 ( 2 ( q k h h k q h k q h m h m q h m h m q h k q k q h m h m q m m u ku u ku W s 2 2 1 1 2 l l m m u u u u l u u u u W I 1 2 .. 1 .. 2 2 2 1 .. 2 .. 1 12 2 2 22 .... 22 .. 22 22 kk qq kk qq mm 0 0 ) .... 2 22 1 .... 2 11 k qq mm q q m q W s W I 0 0 ) 6 3 2( ) 6 3 ( 2 .. 1 .. 2 2 1 .. 2 .. 1 1 u u u u u u u u m m K m m K u 1 u 2 0 6 3 2 0 6 3 .. 1 .. 2 2 .. 2 .. 1 1 u u u u u u m m K m m K 0 0 2 0 0 3 6 6 3 2 1 .. 2 .. 1 u u u u K K m m m m 0 [M] - [K] 2 0 3 2 6 6 3 2 2 m k m m m k . 1 m k . 2 m k 1 ) ( 2 n 7342 .2 )1( 1 7321 .0 )2( 1 1 7342 .2 1 1 7321 .0 2 k 1k 2 h EI 3 24 0 [M] 0 M]] 66 33 22 mm m m 00 33 6 2 mm k . 11