Epidrasi Pyrkagias Sto Skyrodema--Apokatastasi

7/22/2019 Epidrasi Pyrkagias Sto Skyrodema--Apokatastasi

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2.1 KORDINA [2] Kordina ,

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15 - 30 800 C 900 C.

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, 1000 C 1100 C.

.


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, 800 C 900 C

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1000 C

1000 C 1200 C

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ISO P834 ( 1).

T T0 = 345 log (8t + 1)

T :

0 :

t :

1. ISO 834:2000 [11]

.

t (min) T T0 (C)0

5

10

15

30

60

90

120

180

240

360

0

556

658

719

822

925

986

1029

1090

1133

1194


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20

100

200300

400

500600

700

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1000

1100

1200

1,00

0,95

0,900,85

0,75

0,600,45

0,30

0,150,08

0,04

0,01

0,00

1,00

0,97

0,940,91

0,85

0,740,60

0,43

0,270,15

0,06

0,02

0,00

2,5

3,5

4,56,0

7,5

9,512,5

14,0

14,515,0

15,0

15,0

-0

10

20

30

40

50

60

70

80

90

100

20 100 200 300 400 500 600 700 800 900 1000 1100 1200

C

%


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400C 450

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( 4 , 5)

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3. [4].

4. 5. [1]. [1].


5/16

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30

40

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0 100 200 300 400 500 600 700 800

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(2006 1994 ).

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4.1.1 (. . , . . , 2006) [8]

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6/16

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C

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40 8 ,

max,0

= 18,14 MPa.

fct = 3,62 MPa() fcc = 34,59 MPa ().

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10 16

.

500C

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4.1.2 (1994) [7] ( 11 , 1994)

(22,5 , 30 35 MPa).

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mm

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400C.

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( 7 , 8) 35 Mpa,

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7. max - T [8]

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60

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120

min

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min

240

min

b

c

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20

200

25

250

30

300

35

400

35

450

35

50%

b

c

125

20

160

25

200

25

200

25

300

30

350

35

b

c

100

20

120

25

140

25

160

25

200

25

240

25 2.

[14].

(.)

30 60 90 120 180 240

) b

c

80

20

120

30

150

40

200

50

240

70

280

80) b 100 120 150 200 240 280


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c 25 40 55 70 80 90

) b

c

80

20

80

20

120

35

150

50

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60

240

70

) b

c

80

20

100

30

120

40

150

55

200

70

240

80 3.

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30 60 90 120 180 240

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c

75

15

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20

110

25

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55

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(27.6 MPa)

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16/16

13

:

[1] . . , . , .

, . VII, 14, 23 24, , , 1984

[2] R. Rybicki, , , ,

. 130-144, . , , 1981[3] . ,

, . 19, 21-22, , 1990

[4] Fire safety in residential buildings Building performance series No 2

http://www.cwc.ca/publications/building_performance/fire_safety_res/design.php

[5] . , . , - -

, 12,

, 2006

[6] .. , /,

, 2006

[7] . , . ,

-/, 11, . 302 -312, , ,

, 18 20 1994,

[8] . . , . . ,

, 15, ,

, , 25 27 2006,

[9] . ,

, 3,

, 1997

[10] E.M. Morales, Evaluation and rehabilitation of concrete and innovations in

design, Proceedings: ACI International Conference, . 1458 1472, Hong Kong,

1991

[11] ISO P834 Fire resistance tests - Elements of building construction Part 1:

General requirements, International Organization for Standardization (ISO), 1999

[12] Eurocode 2: Design of concrete structures, Part 10: Structural Fire Design

[13] 2000,. 3.6

, , 2000

[14] - .

71/88, 14:

[15] National Research Council of Canada, irc.nrc-cnrc.gc.ca/images/fr/HSC%20

Columns%20after%20Fire%20Resistance%20Tests.JPG

[16] The Crossroads Village, http://village.crossroadsint.org/includes/repairs/107-0719_IMG.JPG?display=small

[17] S. Lehner, European fire classification of construction products, new test

method SBI, and introduction of European classification system into

German building regulations, Otto-Graf-Journal,Vol. 16, 2005,

Materialprfungsanstalt Universitt Stuttgart, http://www.mpa.uni-

stuttgart.de/publikationen/otto_graf_journal/ogj_2005/beitrag_08_lehner.pdf

[18] Asota, Anti Fire Crack/Micro Crack Preventer The latest of fibres for fibre

concrete generation, Asota, Anti Fire Cracking Systems,

http://www.asota.com/redsyspix/download/afc_englisch1.pdf

[19] 21 Century Safety Issues,

http://www.firetrain.com/images/Las%20Vegas%20City%20spalling.gif

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Epidrasi Pyrkagias Sto Skyrodema--Apokatastasi