Page 577 - index

Ɇɚɣɵɫԕɵɲɬɵԕɬɵ ɬɚɛɚɦɵɡ: O 2 ˜ 200 136 .
2,95

Ȼԝɥ ɦɚɣɵɫԕɵɲɬɵԕԕɚ ɫԥɣɤɟɫ ij=0,376. Ȼɿɡɞɿԙ ɬɚԑɚɣɵɧɞɚԑɚɧ ij-ɞɿԙ ɦԥɧɿɧɟɧ
ɛԝɥ ɲɚɦɚ ɬɵɦ ɚɥɲɚԕ ɠɚɬԕɚɧɞɵԕɬɚɧ, ɟɫɟɩɬɿ ԕɚɣɬɚɥɚɩ ɲɵԑɚɪɚɦɵɡ. Ɉɥ ԛɲɿɧ:

M2 0,5 0.376 0.438 , Ⱥ 40000 57ɫɦ2 .
2 0,438˜1600

Ȼԝɥ ɲɚɦɚԑɚ, ɤԧɥɞɟɧɟԙ ԕɢɦɚɫɵɧɵԙ ɚɭɞɚɧɵ ɫԥɣɤɟɫɬɟɭ ɤɟɥɟɬɿɧ ԕɨɫɬɚɜɪ ʋ36.
Ɉɧɵԙ ɚɭɞɚɧɵ Ⱥ=61,9ɫɦ2, ɢɧɟɪɰɢɹ ɪɚɞɢɭɫɵ ɿ=2,89ɫɦ. Ɇɚɣɵɫԕɵɲɬɵԑɵɧ

ɬɚɛɚɣɵԕ O 2 ˜ 200 138 .
2,09

Ʉɟɫɬɟɞɟɧ ij ɦԥɧɿɧ ɬɚɛɚɦɵɡ. Ɉɥ ij =0,368. Ȼԝɥ ɲɚɦɚ ɛɿɡɞɿԙ ԕɚɛɵɥɞɚԑɚɧ ij-ɞɿԙ
ɦԥɧɿɧɟ ɬɚɹɭ ɛɨɥԑɚɧɞɵԕɬɚɧ, ɨɫɵ ԕɨɫɬɚɜɪɞɵ ɨɪɧɵԕɬɵɥɵԕԕɚ ɟɫɟɩɬɟɣɿɤ:

V P 40000 1756ɤɝ / ɫɦ2 t >V @.
M˜Ⱥ 0,368˜ 61,9

ɋɵɪɵԕɬɚԑɵ ɤɟɪɧɟɭ ɦԛɦɤɿɧ ɤɟɪɧɟɭɞɟɧ ɤԧɩ ɛɨɥԑɚɧɞɵԕɬɚɧ, ɤɟɥɟɫɿ ԕɨɫɬɚɜɪɞɵ
ԕɚɛɵɥɞɚɩ, ɨɧɵԙ ɨɪɧɵԕɬɵɥɵԑɵɧ ɬɟɤɫɟɪɟɦɿɡ. Ʉɟɥɟɫɿ ԕɨɫɬɚɜɪ ʋ40,

Ⱥ 72,6 ɫɦ2 , i 3,03 ɫɦ . Ɇԝɧɵԙ

– ɦɚɣɵɫԕɵɲɬɵԑɵ: O 2 ˜ 200 132 .
3,09

– ɧɟɝɿɡɝɿ ɦԛɦɤɿɧ ɤɟɪɧɟɭɞɿ ɬԧɦɟɧɞɟɬɭ ɤɨɷɮɮɢɰɢɟɧɬɿ: M 0,392 ,

– ԕɢɦɚɞɚԑɵ ɤɟɪɧɟɭɿ

V 40000 1405ɤɝ ɫɦ2 1600ɤɝ ɫɦ2 .
0,392 ˜ 72,6

Ԕɵɪԕɵɧɲɵ ɠԥɧɟ ɨɬɵɡ ɚɥɬɵɧɲɵ ԕɨɫɬɚɜɪɥɚɪɞɵԙ ɚɪɚɫɵɧɞɚ ɛɚɫԕɚ ԕɨɫɬɚɜɪ
ɛɨɥɦɚԑɚɧɞɵԕɬɚɧ, ɛԝɥ ɫɵɪɵԕɬɵԙ ԕɢɦɚɫɵɧɞɚԑɵ ɤɟɪɧɟɭɞɿԙ ɦԛɦɤɿɧ ɤɟɪɧɟɭɞɟɧ
ԧɬɟ ɚɡɞɵԑɵɧɚ ԕɚɪɚɦɚɫɬɚɧ, ɫɨԙԑɵ ԕɨɫɬɚɜɪɞɵ (ʋ40) ԕɚɛɵɥɞɚɣɦɵɡ.

2-ɦɵɫɚɥ. ȿɤɿ ɲɜɟɥɥɟɪ (ʋ22) ɠԥɧɟ ɟɤɿ ɛɨɥɚɬ ԕɚԙɵɥɬɵɪɞɚɧ ɠɚɫɚɥԑɚɧ
(ɤԧɥɞɟɧɟԙ ԕɢɦɚɫɵ ɠԥɧɟ ԕɢɦɚɧɵԙ ԧɥɲɟɦɞɟɪɿ ɫɭɪɟɬɬɟ ɤԧɪɫɟɬɿɥɝɟɧ), ԝɡɵɧɞɵԑɵ
l=6 ɦ ɞɿԙɝɟɤɬɿԙ ɟɤɿ ɲɟɬɤɿ ԕɢɦɚɥɚɪɵ ɬɨɩɫɚɥɵ ɛɨɥɵɩ ɛɟɤɿɬɿɥɝɟɧ (ɛɿɪɟɭɿ –
ɬɨɩɫɚɥɵ ɠɵɥɠɵɦɚɣɬɵɧ, ɚɥ ɟɤɿɧɲɿɫɿ – ɬɨɩɫɚɥɵ ɠɵɥɠɵɦɚɥɵ). ɒɜɟɥɥɟɪ ɦɟɧ
ԕɚԙɵɥɬɵɪ ɛɨɥɚɬɬɚɪ ɛɿɪ-ɛɿɪɿɦɟɧ ɬɨɣɬɚɪɦɚ ɲɟɝɟɥɟɪ ɚɪԕɵɥɵ ɛɟɤɿɬɿɥɝɟɧ.
Ɍɨɣɬɚɪɦɚ ɲɟɝɟɥɟɪɞɿԙ ɞɢɚɦɟɬɪɿ 20 ɦɦ (132-ɫɭɪɟɬ). ɇɟɝɿɡɝɿ ɦԛɦɤɿɧ ɤɟɪɧɟɭɞɿ
ɬԧɦɟɧɞɟɬɭ ɤɨɷɮɮɢɰɢɟɧɬɿɧ ɩɚɣɞɚɥɚɧɵɩ, ɨɫɵ ɞɿԙɝɟɤ ɤԧɬɟɪɟ ɚɥɚɬɵɧ ɦԛɦɤɿɧ

ɠԛɤɬɟɦɟɧɿ ɚɧɵԕɬɚɭ ɤɟɪɟɤ. ɇɟɝɿɡɝɿ ɦԛɦɤɿɧ ɤɟɪɧɟɭ >V @ 1600ɤɝ/ɫɦ2. Ԕɚԙɵɥɬɵɪ

ɛɨɥɚɬɬɵԙ ɬɚԙɛɚɫɵ – ɋɬ.3.
ɒɟɲɭɿ. Ⱥɥɞɵɦɟɧ, ɲɜɟɥɥɟɪɞɿԙ ɝɟɨɦɟɬɪɢɹɥɵԕ ɫɢɩɚɬɬɚɦɚɥɚɪɵɧ

ɫɨɪɬɚɦɟɧɬɬɟɪ ɤɟɫɬɟɫɿɧɟɧ ɬɚɭɵɩ ɚɥɚɦɵɡ. əԑɧɢ: Ⱥ=26,7ɫɦ2, Ix=2110ɫɦ4 ɠԥɧɟ
Iy =151ɫɦ4. ɋɨɧɵɦɟɧ ɞɿԙɝɟɤ ԕɢɦɚɫɵɧɵԙ ɝɟɨɦɟɬɪɢɹɥɵԕ ɫɢɩɚɬɬɚɦɚɥɚɪɵ:

A 2 ˜ 26,7 32 ˜1 117,4 ɫɦ2;

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