arrow arrow 2 - arrow 2.05.03-84

2.05.03-84
  
06.03.2013 .

10. , , . 4.45* 4.47, 16*. .

11*. , , .

Js (. . 3) (-)

 :  ,,  2.05.03-84    ,                                         (11)*

a , . 2, *;

y , : 0,055 k = 1; 0,15 k = 2; 0,20 k ³ 3;

k ;

L ;

l ;

Jsl (. . 3);

sxc , ;

sx,cr,ef , . 68* sx,cr = sxc.

2*

w

0

0,1

0,2

0,3

0,4

0,5

0,6

0,7

0,8

0,9

0,95

1

a

0

0,016

0,053

0,115

0,205

0,320

0,462

0,646

0,872

1,192

1,470

2,025

sx,cr,ef

 :  ,,  2.05.03-84   .

. w  :  ,,  2.05.03-84   , jo . 3* . 12 lef = l.

, , (11)* a 2,025, lef l.

12*. ( -) (11)*

 :  ,,  2.05.03-84   ,                                                      (12)*

sxc . . 11*;

jo , . 3* lo;

m , . 60* . 4.19*.

3*

j0

l0, l1

16

15

10,

390-142,

390-152

0

1,00

1,00

1,00

41

1,00

1,00

1,00

44

1,00

1,00

0,96

50

1,00

0,92

0,88

53

1,00

0,87

0,83

60

0,95

0,76

0,72

70

0,83

0,64

0,59

80

0,73

0,56

0,49

90

0,64

0,50

0,43

100

0,59

0,44

0,38

110

0,53

0,39

0,33

120

0,47

0,34

0,28

130

0,41

0,30

0,25

140

0,36

0,26

0,22

150

0,32

0,23

0,20

160

0,29

0,21

0,17

170

0,26

0,19

0,16

180

0,23

0,17

0,14

190

0,21

0,15

0,13

200

0,20

0,14

0,11

 :  ,,  2.05.03-84   ,                                    (13)*

lef - () ,  :  ,,  2.05.03-84   . w . 2*

 :  ,,  2.05.03-84   ;

Js, Jsl l - . . 3;

a - ;

th - ;

x - , 1,0 . 4* ;

A - ;

 :  ,,  2.05.03-84     ( Jt ).

4*

f / i

x

0

1,00

0,01

0,75

0,05

0,70

0,10

0,66

f   ;

i .

- (167), (13)* x = 1,0.

13. (. , , ) - (12)*, jo l1.

l1

 :  ,,  2.05.03-84   ,                                              (14)

 :  ,,  2.05.03-84   ;

l . . 3;

hw tw (. , );

bf, tf (. , );

Iy, Iz z;

 :  ,,  2.05.03-84   ;

 :  ,,  2.05.03-84   ;

 :  ,,  2.05.03-84   .

. 4.45*:

bf > 0,3 hw , bf = 0 ;

0 < bf £ 0,3 hw (bf = 0).

19

,

1. ( ) .

         -  :  ,,  2.05.03-84

, (. ), :

()

 :  ,,  2.05.03-84   ;                                                               (1)

( )

 :  ,,  2.05.03-84   ;                                                (2)

()

 :  ,,  2.05.03-84   ;                                              (3)

r = Ers = Est ()

 :  ,,  2.05.03-84   ;                                             (4)

()

 :  ,,  2.05.03-84   ;                                            (5)

()

 :  ,,  2.05.03-84   .                                            (6)

(. ) :

, ,

 :  ,,  2.05.03-84   ;                                                              (7)

, ,

 :  ,,  2.05.03-84   .                                                             (8)

(1) (8):

a, b, n , :

 :  ,,  2.05.03-84   ;

 :  ,,  2.05.03-84   ;

 :  ,,  2.05.03-84   ;

jkr = gf Eb cn - ;

gf - . 8.

cn - , . 3.15 11*, 13*;

sbl, sbf,l - ;

ssbf,kr - ,

 :  ,,  2.05.03-84   ;

Ast, Ist, Ws1,st, Ws2,st , Wrf,st - , , , ;

 :  ,,  2.05.03-84    - . 5.16.

. 5.5, 5.19* .

2. Eef,kr, , , . ef,kr

 :  ,,  2.05.03-84   ,                                          (9)

v, jkr - . . 1.

i-

 :  ,,  2.05.03-84   ,                                                       (10)

si,ef, si - , ef,kr Eb.

3. ( , .), .

, sb,krAb ( sb,kr b . 1).

, , : ef,kr (. .2) ; b , . jkr , sb,kr ef,kr , .

jkr

sb,kr

1

jkr

0,5jkr

2

0,5jkr

0,38jkr

3

0,38jkr

0,32jkr

4. , skrAb , . skr = sb,kr; skr , .

5. , .

a, b, ef,kr (. . 1 2) jkr,d,

 :  ,,  2.05.03-84   ,                                                      (11)

L ;

SDd , L;

jkr . 1;

b, Rb . 3.24* 3.32*.

Dd, ,

Dd = 0,005 + 0,00035 bd ,                                                   (12)

bd ( ).

6. vkr, . 2 jkr jvkr ,

 :  ,,  2.05.03-84   ,                            (13)

 :  ,,  2.05.03-84     , ;

jkr, cn . 1.



2.05.03-84
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