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Ȼɟɥɝɿɥɿ ɮɨɪɦɭɥɚɥɚɪɞɵ ɩɚɣɞɚɥɚɧɵɩ, ɤɟɥɟɫɿ ɲɚɦɚɥɚɪɞɵ ɚɧɵԕɬɚɣɦɵɡ:
- ɢɿɧɬɿɪɟɤɬɿԙ ɛԝɪɵɲɬɵԕ ɠɵɥɞɚɦɞɵԑɵ ZOA S n 12S 1/ cek ,
30
- ɠɵɥɞɚɦɞɵԑɵ vA OA ZOA 3,77 ɦ / ɫ ,
- ԛɞɟɭɿ ɚ OA Z2 142 ɦ / ɫ2 .
OA
ȿɧɞɿ ɛԝɥԑɚԕɬɵԙ ɛԝɪɵɲɬɵԕ ɠɵɥɞɚɦɞɵԑɵɧ (Z AB ) ɬɚɛɭԑɚ ɛɨɥɚɞɵ. ɋɭɪɟɬɬɟɧ
ɤԧɪɿɧɿɩ ɬԝɪԑɚɧɞɚɣ, ɦɟɯɚɧɢɡɦɧɿԙ ɠɚɡɵԕɬɵԕɬɚԑɵ ɨɪɧɵɧɚ ɫԥɣɤɟɫ, AB
ɛԝɥԑɚԑɵɧɵԙ ɠɵɥɞɚɦɞɵԕɬɚɪɵɧɵԙ ɥɟɡɞɿɤ ɰɟɧɬɪɿ ɛɨɥɵɩ P ɧԛɤɬɟɫɿ
ɚɧɵԕɬɚɥɚɞɵ. ɋɨɧɞɵԕɬɚɧ: Z AB vA 6,28 1/ cek ( AP AB 60ɫɦ ),
AP
ɚ n AB u Z 2 23,66 ɦ / ɫ2 .
BA AB
o o oo
W , n ,
Ʉɟɥɬɿɪɿɥɝɟɧ ɫɭɪɟɬɬɟ ɚ BA ɚ BA ɚA , ɚB ɲɚɦɚɥɚɪɵɧɵԙ ɛɚԑɵɬɬɚɪɵ
o o
ɤԧɪɫɟɬɿɥɝɟɧ. Ȼɿɪɚԕ n
ɚ BA ɠԥɧɟ ɚA ɲɚɦɚɥɚɪɵɧɵԙ ɛɚԑɵɬɬɚɪɵ ɛɟɥɝɿɥɿ
oo
ɛɨɥԑɚɧɦɟɧ, W ɲɚɦɚɥɚɪɵɧɵԙ ɛɚԑɵɬɬɚɪɵ ɛɟɥɝɿɫɿɡ, ԧɣɬɤɟɧɿ ɚɣɧɚɥɭ
ɚ BA ɠԥɧɟ ɚB
o
ԛɞɟɭɿ wWBA AB ɛԝɥԑɚԑɵɧɚ ɩɟɪɩɟɧɞɢɤɭɥɹɪ ɛɨɥԑɚɧɦɟɧ, ɨɧɵԙ ԕɚɣ ɠɚԕԕɚ
o
ɚɣɧɚɥɞɵɪɚɬɵɧɵ ɛɟɥɝɫɿɡ. ɋɨɥ ɫɟɤɿɥɞɿ, ɚB ԛɞɟɭɿ ɝɨɪɢɡɨɧɬɚɥɶ ɛɚԑɵɬɬɚɥԑɚɧɦɟɧ,
ԕɚɣ ɠɚԕԕɚ (ɨԙԑɚ ɧɟɦɟɫɟ ɫɨɥԑɚ) ɛɚԑɵɬɬɚɥԑɚɧɵ ɛɟɥɝɿɫɿɡ. ɋɨɧɞɵԕɬɚɧ ɨɥɚɪɞɵԙ
ɛɚԑɵɬɬɚɪɵ ԛɡɛɟ ɫɵɡɵԕɩɟɧ ɤԧɪɫɟɬɿɥɝɟɧ.
o o o o
+ n ) By
Ԛɞɟɭɥɟɪɞɿ ɚɧɵԕɬɚɭ ԛɲɿɧ ɛɟɥɝɿɥɿ ɬɟԙɞɿɤɬɿ ( ɚ B ɚA ɚ BA + ɚWBA ɨɫɿɧɟ
ɩɪɨɟɤɰɢɹɥɚɣɵԕ. ɋɨɧɞɚ:
cos 450 cos 450 cos 450 o o o
0 n n ɚWBA W = n =-118,34 ɦ/ ɫ2 .
ɚ BA ɚ A ɚ BA ɚ BA -ɚA
o
W ɲɚɦɚɫɵɧɵԙ ɦɢɧɭɫ ɬɚԙɛɚɫɵ, ɨɧɵԙ ɧɚԑɵɡ ɛɚԑɵɬɵ 40-ɫɭɪɟɬɬɟ
Ⱥɥɵɧԑɚɧ ɚ BA
ɤԧɪɫɟɬɿɥɝɟɧ ɛɚԑɵɬԕɚ ԕɚɪɚɦɚ-ԕɚɪɫɵ ɟɤɟɧɿɧ ɤԧɪɫɟɬɟɞɿ.
Ɏɢɝɭɪɚɧɵԙ ɥɟɡɞɿɤ ɛԝɪɵɲɬɵԕ ԛɞɟɭɿɧɿԙ ɦɨɞɭɥɿ:
H AB ɚWBA 197,23 1/ cek .
AB
oo o + o + o ) Bx ɨɫɿɧɟ
wB - ɚɧɵԕɬɚɭ ԛɲɿɧ ɛɟɥɝɿɥɿ ɬɟԙɞɿɤɬɿ ( wB wA wBnA wWBA
ɩɪɨɟɤɰɢɹɥɚɣɵԕ. ɋɨɧɞɚ:
ɚB ɚ n cos 450 ɚA cos 450 ɚWBA cos 450 ɚB 36,18 ɦ / ɫ2 .
BA
Ȼԝɥ ɠɟɪɞɟɝɿ ɦɢɧɭɫ ɬɚԙɛɚɫɵ ɠɵɥɠɵԑɵɲ ԛɞɟɭɿɧɿԙ ɫɨɥ ɠɚԕԕɚ
ɛɚԑɵɬɬɚɥԑɚɧɵɧ ɤԧɪɫɟɬɟɞɿ.
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