arrow arrow 2 - arrow 2.05.03-84

2.05.03-84
  
06.03.2013 .

4.36. , , ,

 :  ,,  2.05.03-84   ,                                                              (167)

j , . 1*3 15* l ef ;

m . 4.384.41 , . 60*.

l

 :  ,,  2.05.03-84   ,                                                                (168)

lef ;

i , ( ).

ef

 :  ,,  2.05.03-84   ,                                                            (169)

h - , 15*;

 :  ,,  2.05.03-84    - ( - N , r ), .

 :  ,,  2.05.03-84   ,                                                            (170)

N, - .

r

 :  ,,  2.05.03-84   ,                                                            (171)

Wc , .

N .

:

;

, , , ;

, , , ;

- , , , , . 66.

66

,

max

 :  ,,  2.05.03-84    <  4

 :  ,,  2.05.03-84    ³  4

erel £ 3

M=M2=Mmax -  :  ,,  2.05.03-84   (Mmax -M1)

M = M1

3 < erel £ 20

M = M2+ :  ,,  2.05.03-84   (Mmax -M2)

M = M1+ :  ,,  2.05.03-84   (Mmax -M1)

. 66 :

max ;

1 , 0,5 max;

rel ,

 :  ,,  2.05.03-84   ;

 :  ,,  2.05.03-84     ,

 :  ,,  2.05.03-84    = l aR,

aR , . 4* 15*.

.  ³ 0,5 Mmax.

- , , ef . 6 II-23-81*, mef eef mef1 eef1,

 :  ,,  2.05.03-84   ,

M1 , - .

4.37. , , , :

( ) , , (167);

( ) , , (167) j . 1*3 15* lef ;

(167) la.

la (168), lef ( ) , 0,8 i , .

lef

lef =  :  ,,  2.05.03-84   ,                                                        (172)

l , (168);

la .

, tef, :

b, l t

 :  ,,  2.05.03-84   ,                                                     (173)

= bl ;

SA1 ;

t

 :  ,,  2.05.03-84   ,                                                           (174)

Sl1 ( );

l .

, , , , ( ) :

40i;

80i.

i , , . .

4.38. - Ix >Iy, N,

 :  ,,  2.05.03-84   ,                                                           (175)

jc , . 1*3 15* ef = 0

 :  ,,  2.05.03-84   .

4.39. - Ix > Iy, , ,

 :  ,,  2.05.03-84   ,

e N = M/N ;

Wc , :

jc , . 1*3 15* ef = 0

 :  ,,  2.05.03-84   .

4.40. - , ,

 :  ,,  2.05.03-84   ,                               (177)

y, x y ;

, , y N;

jc , . 1*-3 15* eef = 0

 :  ,,  2.05.03-84   .

, (167) y y ( x = 0) ex ( ey = 0).

4.41. - , ,

 :  ,,  2.05.03-84   ,                                                   (178)

lef ;

Wc ;

e , :

ly < 85

e = 1 + (æ - 1)  :  ,,  2.05.03-84   ;

ly ³ 85

e = 1,0; æ , (143) (144*);

jb , . 1*3 15* ef = 0

 :  ,,  2.05.03-84   .

4.42. - , , (178), jb . 1*3 15* ef = h erel.

h , 15*;

rel ,

 :  ,,  2.05.03-84   ,                                                          (179)

sfh , ;

sfn .

4.43. , .

{mospagebreak title=" , "}

,

4.44. - , - , (. 11), .

   ,     -  :  ,,  2.05.03-84

   ,     -  :  ,,  2.05.03-84

. 11. ,

4.45*. , , , 0,2s, (h, hw) (br, bh) (t, tw, tr, th) 0,951 a/ :  ,,  2.05.03-84    ( a , sx,cr,ef ).

a :

bh, h, (. 11, - ),

 :  ,,  2.05.03-84   ;                                    (180)

hw, bf, (. 11, , , ),

 :  ,,  2.05.03-84   .                                         (181)

(180) (181):

 :  ,,  2.05.03-84     , . 67;

x , ( )

 :  ,,  2.05.03-84   ,

sx,  :  ,,  2.05.03-84     , , (141) (158) , æ, æx, æy, y, yx, yy 1,0.

67

 :  ,,  2.05.03-84

- bh/h

1

0,667

0,5

(. 11, )

 :  ,,  2.05.03-84

 :  ,,  2.05.03-84

(. 11, )

 :  ,,  2.05.03-84

 :  ,,  2.05.03-84

(. 11, )

 :  ,,  2.05.03-84

 :  ,,  2.05.03-84

(. 11, )

 :  ,,  2.05.03-84

 :  ,,  2.05.03-84

h (. 11, )

-

 :  ,,  2.05.03-84   9 = ¥

 :  ,,  2.05.03-84   9 = 10

 :  ,,  2.05.03-84   9 = 5,2

(. 11, )

 :  ,,  2.05.03-84   10 = ¥

 :  ,,  2.05.03-84   10 = ¥

. 67 :

b1 =  :  ,,  2.05.03-84   ;  a1 =  :  ,,  2.05.03-84   b2 =  :  ,,  2.05.03-84   ;  a2 =  :  ,,  2.05.03-84   b3 =  :  ,,  2.05.03-84   ;  a3 =  :  ,,  2.05.03-84   .

: 1. . 67,  :  ,,  2.05.03-84   = ¥.

2. bh/h, . 67,  :  ,,  2.05.03-84   9 , bh/h = 1  :  ,,  2.05.03-84   9 100.

sx,cr,ef . 68* sx,cr, sx/m ( m , . 60*).

68*

sx,cr, (/2)

sx,cr,ef , (/2)

16

176 (1800)

1,222 sx,cr

3

. 176 (1800)

205 (2100)

 :  ,,  2.05.03-84

. 205 (2100)

385 (3923)

15

186 (1900)

1,111 sx,cr

. 186 (1900)

284 (2900)

 :  ,,  2.05.03-84

. 284 (2900)

524 (5342)

10

206 (2100)

1,111  sx,cr

390-142

. 206 (2100)

343 (3499)

 :  ,,  2.05.03-84

390-152

. 343 (3499)

591 (6023)

{mospagebreak title=" , "}

,

4.46. , , , .

, 16*.

4.47*. . 4.45*, :

a (180) vs bh (. 12, ), 0,5 hw r2 th ³ hw   r1 th r2 th < hw;

a (181)  :  ,,  2.05.03-84   , hw, , bh, (. 12, ), x1th; x1 x2 , . 4.55*.

      -  :  ,,  2.05.03-84

      -  :  ,,  2.05.03-84

. 12.



2.05.03-84
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