8/8/2019 Conformarea str. metalice

1/30

UNIVERSITATEA TEHNICA DE CONSTRUCTII BUCURESTIFACULTATEA DE CONSTRUCTII CIVILE, INDUSTRIALE SI AGRICOLE

8/8/2019 Conformarea str. metalice

2/30

!"#$%&"%" '(!)*+,

'$!'(! -,

+ ./$0&%"/%$1"%",

/!"#$%&"%"2

!3,

45678 0"%&!"%$1"%"

$%$9$% !"0/ %":3"0 &%$1"/" ;

8/8/2019 Conformarea str. metalice

3/30

>,

*?*+7>*,*+7>@,*++7>*, .#/3---* '$0#" !"&%=3"

8/8/2019 Conformarea str. metalice

4/30

A !5!->B-=CDD!-

A !5!->B-=CDD!-

A !5!->B-=CDD!-

5C/=%"2 /$5 1/-!- !-=C5

8/8/2019 Conformarea str. metalice

5/30

E

E

E> !"1#$1%""03=0%"3$%$9$%/=% 0+.1"0%$"C%"#"!% 1%0%$1"%"'%&/

E

F.>

>G-+!H'(

yfovdRR 1,1

yfdRR 2,1

8/8/2019 Conformarea str. metalice

6/30

8/8/2019 Conformarea str. metalice

7/30

8/8/2019 Conformarea str. metalice

8/30

I

/3 -3$ *I5

/3 3$ -GI@-

/3 IF@-J

I

8/8/2019 Conformarea str. metalice

9/30

,

0,,

1Rdpl

Ed

M

M15,

,

0

Rdpl

Ed

N

N 5,0,

Rdpl

Ed

V

V

8/8/2019 Conformarea str. metalice

10/30

!"#$%&'(!!)*+

,

,,

-./-/)

,

0+123*+45678

8/8/2019 Conformarea str. metalice

11/30

,

,

,

,

,

8/8/2019 Conformarea str. metalice

12/30

>

0

0

2,03.1

A !5!->B-=CDD!-

A !5!->B-=CDD!-

$0!"?

KC/=%"25 1/-!- !-

06-P1003,e

1 92-P10070,0e

8/8/2019 Conformarea str. metalice

14/30

,,9

'%-:;-:;'#! '%&;$:;!:$%:(!%0:#::;: ;!:

!";0$#%!!-*'#'=;:0$: #:(=:>$#':&"%:#!'-"(;'(:0!

,,

,)6

8/8/2019 Conformarea str. metalice

15/30

48

4>8

48

#'%?#

#'%?#

,!

#'%?#

#'%?#

,

!

>

linkpl

linkpl

linkpl

linkpl

V

M

V

M

,

,

,

,0,36,1 e

8/8/2019 Conformarea str. metalice

16/30

,,

@, ,9

;:':%'!%0;$=:;!#!'4':0'A!4-$;0!

;:':%'!%0;$=:;!#!'4':0'A!#$%&'

A::A!:"A:#":;!!0!;('%:0:;'%'%0!;"#:;!#'%':;:B%0;!A:#";'#!!(:'4$4!%0;$=:;!#!'4':0'A!'%0!;(!':;!

,,C

8/8/2019 Conformarea str. metalice

17/30

La capetele barei disipative, n dreptul

diagonalelor contravntuirii, seprevedea rigidizri pe toat nlimeainimii pe ambele fee ale acesteia.Rigidizrile trebuie s aib o lime

nsumat de cel puin (b 2tw), iar

grosimeatst0,75 tw

itst10

8/8/2019 Conformarea str. metalice

18/30

Barele disipative scurte trebuie s fie

prevzute cu rigidizri intermediareamplasate pe inim la distane "a"care trebuie s respecte condiiile:

a (30 tw hw/5) pentru = 0,08 rad

a (52 tw hw/5)pentru 0,02 rad

Pentru 0,02 rad < < 0,08 rada" sedetermin prin interpolare liniar.

8/8/2019 Conformarea str. metalice

19/30

a a a a

e

bst tst

a

a

a-a

b

hw

tw

,2D,2D,2D,2D5555

! "

8/8/2019 Conformarea str. metalice

20/30

e

c=1,5bc c=1,5b c

d da

a

tst

a-a

bst

b

hw

tw

,,,,2!182!182!182!18#####'%?#'%?#'%?#'%? 6666,#,#,#,##'%?#'%?#'%?#'%? 5555

8/8/2019 Conformarea str. metalice

21/30

c'c

e

c

d d

a' a' a' c'

a

tst

a

a-a

bst

b

hw

tw

,,,,2)E##'%?62)E##'%?62)E##'%?62)E##'%?6,#,#,#,##'%?#'%?#'%?#'%? F!F8##'%?6F!F8##'%?6F!F8##'%?6F!F8##'%?6,#,#,#,##'%?#'%?#'%?#'%? 5555

8/8/2019 Conformarea str. metalice

22/30

8/8/2019 Conformarea str. metalice

23/30

8/8/2019 Conformarea str. metalice

24/30

8/8/2019 Conformarea str. metalice

25/30

8/8/2019 Conformarea str. metalice

26/30

8/8/2019 Conformarea str. metalice

27/30

8/8/2019 Conformarea str. metalice

28/30

8/8/2019 Conformarea str. metalice

29/30

8/8/2019 Conformarea str. metalice

30/30