.


:




:

































 

 

 

 





8.1.53 , , , , ( 8.14).

, 8.1.46 - 8.1.52.

0138S10-03623

8.14 - ,

8.1.54 , ( 8.15).

0138S10-03623

8.15 - , ( )

, :

(Mx,ult - Mx) × (My,ult - ) - 2xy ³0; (8.100)

Mx,ult ³ Mx;(8.101)

My,ult ³ My; (8.102)

Mxy,ult ³ Mxy, (8.103)

, , - , ;

Mx,ult, My,ult, Mxy,ult - ,

. Mx,ult My,ult , X Y, , X Y, 8.1.1 - 8.1.13.

Mbxy,ult Msxy,ult :

Msxy,ult = 0,1 Rbb2h,(8.104)

b h - ;

Msxy,ult = 0,5 Rs (Asx + Asy) h 0,(8.105)

sx Asy - Y;

h 0 - .

, , .

8.1.57.

8.1.55 :

(8.106)

Qx Qy - , ;

Qx,ult Qy,ult - , .

:

Qult = Qb + Qsw, (8.107)

Qb Qsw - , :

Qb = 0,5 Rbtbh 0;(8.108)

Qsw = qswh 0, (8.109)

qsw - , (8.59).

8.1.56 , , , , , ( 8.16).

8.1.57 , , .

0138S10-03623

8.16 - , ( )

, .

, :

(Nx,ult - Nx)(Ny,ult - Ny) - N 2 xy ³ 0; (8.110)

Nx,ult ³ Nx;(8.111)

Nxy,ult ³ Ny;(8.112)

Nx, Ny Nxy - , ;

Nx,ult, Ny,ult Nxy,ult - , ;

Nx,ult, Ny,ult , X Y, , X Y, 8.1.14 - 8.1.19.

Nbxy.ult Nsxy.ult :

Nbxy.ult = 0,3 RbAb,(8.114)

b - .

Nsxy.ult = 0,5 Rs (Asx + Asy), (8.115)

Asx Asy - X Y .

, .

, , , .

8.1.58 , .

8.1.59 ( ), ( ) 8.2.





:


: 2016-11-19; !; : 685 |


:

:

, ; , .
==> ...

1002 - | 821 -


© 2015-2024 lektsii.org - -

: 0.013 .