Đồ án Kết cấu thép - Nhà công nghiệp 1 tầng
Do không tồn tại thành phần phản lực ngang gây kéo thanh cánh dưới nên bulong lien kết sườn gối vào bản cánh cột được lấy theo cấu tạo :chọn 8 bulong 20
Bulong chọn theo cấu tạo được bố trí 2 hàng đứng khoảng cách tứ bulong trên cùng đến mép trên sườn gối không nhỏ hơn 2d , khoảng cách các bulong trên mỗi hàngkhông lớn hơn 8d .
f). Tính toán gối đỡ :
Bề rộng gối đỡ ; bề dày gối đỡ lấy lớn hơn bề dày sườn gối sao cho sườn gối đặt lọt vào trong mặt gối đỡ .Mép ngoài sườn gối cách mép ngoài gối đỡ tối thiểu là 5 đến 10 mm. Chiều dài gối đỡ phụ thuộc vào chiều dày đường hàn lien kết gối đỡ vào cột .
Gối đỡ chịu phản lực Ra= 48.89 T . Gối đỡ liên kết vào cột bằng 2 đường hàn góc .
Chọn chiều dày gối đỡ bề rộng gối đỡ bg=300 mm.
Chọn chiều cao đường hàn góc liên kết gối đỡ vào cánh cột hh=1 cm .
Chiều dài đường hàn góc tính theo :
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0
TOHOP
Combination
Min
-13.2039
0
0
0
0
0
17
3.01496
TOHOP
Combination
Min
-13.2039
0
0
0
0
0
17
0
TH4-5
Combination
Max
0.47
0
0
0
0
0
17
3.01496
TH4-5
Combination
Max
0.47
0
0
0
0
0
17
0
TH4-5
Combination
Min
-0.2713
0
0
0
0
0
17
3.01496
TH4-5
Combination
Min
-0.2713
0
0
0
0
0
18
0
TTAI
LinStatic
-10.7452
0
0
0
0
0
18
3.01496
TTAI
LinStatic
-10.7452
0
0
0
0
0
18
0
HTT
LinStatic
-1.6192
0
0
0
0
0
18
3.01496
HTT
LinStatic
-1.6192
0
0
0
0
0
18
0
HTP
LinStatic
-0.8414
0
0
0
0
0
18
3.01496
HTP
LinStatic
-0.8414
0
0
0
0
0
18
0
GT
LinStatic
-0.2713
0
0
0
0
0
18
3.01496
GT
LinStatic
-0.2713
0
0
0
0
0
18
0
GP
LinStatic
0.47
0
0
0
0
0
18
3.01496
GP
LinStatic
0.47
0
0
0
0
0
18
0
TOHOP
Combination
Max
-10.2752
0
0
0
0
0
18
3.01496
TOHOP
Combination
Max
-10.2752
0
0
0
0
0
18
0
TOHOP
Combination
Min
-13.2039
0
0
0
0
0
18
3.01496
TOHOP
Combination
Min
-13.2039
0
0
0
0
0
18
0
TH4-5
Combination
Max
0.47
0
0
0
0
0
18
3.01496
TH4-5
Combination
Max
0.47
0
0
0
0
0
18
0
TH4-5
Combination
Min
-0.2713
0
0
0
0
0
18
3.01496
TH4-5
Combination
Min
-0.2713
0
0
0
0
0
19
0
TTAI
LinStatic
-10.7452
0
0
0
0
0
19
3.01496
TTAI
LinStatic
-10.7452
0
0
0
0
0
19
0
HTT
LinStatic
-0.8414
0
0
0
0
0
19
3.01496
HTT
LinStatic
-0.8414
0
0
0
0
0
19
0
HTP
LinStatic
-1.6192
0
0
0
0
0
19
3.01496
HTP
LinStatic
-1.6192
0
0
0
0
0
19
0
GT
LinStatic
0.47
0
0
0
0
0
19
3.01496
GT
LinStatic
0.47
0
0
0
0
0
19
0
GP
LinStatic
-0.2713
0
0
0
0
0
19
3.01496
GP
LinStatic
-0.2713
0
0
0
0
0
19
0
TOHOP
Combination
Max
-10.2752
0
0
0
0
0
19
3.01496
TOHOP
Combination
Max
-10.2752
0
0
0
0
0
19
0
TOHOP
Combination
Min
-13.2039
0
0
0
0
0
19
3.01496
TOHOP
Combination
Min
-13.2039
0
0
0
0
0
19
0
TH4-5
Combination
Max
0.47
0
0
0
0
0
19
3.01496
TH4-5
Combination
Max
0.47
0
0
0
0
0
19
0
TH4-5
Combination
Min
-0.2713
0
0
0
0
0
19
3.01496
TH4-5
Combination
Min
-0.2713
0
0
0
0
0
20
0
TTAI
LinStatic
-10.7452
0
0
0
0
0
20
3.01496
TTAI
LinStatic
-10.7452
0
0
0
0
0
20
0
HTT
LinStatic
-0.8414
0
0
0
0
0
20
3.01496
HTT
LinStatic
-0.8414
0
0
0
0
0
20
0
HTP
LinStatic
-1.6192
0
0
0
0
0
20
3.01496
HTP
LinStatic
-1.6192
0
0
0
0
0
20
0
GT
LinStatic
0.47
0
0
0
0
0
20
3.01496
GT
LinStatic
0.47
0
0
0
0
0
20
0
GP
LinStatic
-0.2713
0
0
0
0
0
20
3.01496
GP
LinStatic
-0.2713
0
0
0
0
0
20
0
TOHOP
Combination
Max
-10.2752
0
0
0
0
0
20
3.01496
TOHOP
Combination
Max
-10.2752
0
0
0
0
0
20
0
TOHOP
Combination
Min
-13.2039
0
0
0
0
0
20
3.01496
TOHOP
Combination
Min
-13.2039
0
0
0
0
0
20
0
TH4-5
Combination
Max
0.47
0
0
0
0
0
20
3.01496
TH4-5
Combination
Max
0.47
0
0
0
0
0
20
0
TH4-5
Combination
Min
-0.2713
0
0
0
0
0
20
3.01496
TH4-5
Combination
Min
-0.2713
0
0
0
0
0
21
0
TTAI
LinStatic
0
0
0
0
0
0
21
2.2
TTAI
LinStatic
0
0
0
0
0
0
21
0
HTT
LinStatic
0
0
0
0
0
0
21
2.2
HTT
LinStatic
0
0
0
0
0
0
21
0
HTP
LinStatic
0
0
0
0
0
0
21
2.2
HTP
LinStatic
0
0
0
0
0
0
21
0
GT
LinStatic
0
0
0
0
0
0
21
2.2
GT
LinStatic
0
0
0
0
0
0
21
0
GP
LinStatic
0
0
0
0
0
0
21
2.2
GP
LinStatic
0
0
0
0
0
0
21
0
TOHOP
Combination
Max
0
0
0
0
0
0
21
2.2
TOHOP
Combination
Max
0
0
0
0
0
0
21
0
TOHOP
Combination
Min
0
0
0
0
0
0
21
2.2
TOHOP
Combination
Min
0
0
0
0
0
0
21
0
TH4-5
Combination
Max
0
0
0
0
0
0
21
2.2
TH4-5
Combination
Max
0
0
0
0
0
0
21
0
TH4-5
Combination
Min
0
0
0
0
0
0
21
2.2
TH4-5
Combination
Min
0
0
0
0
0
0
22
0
TTAI
LinStatic
-7.4
0
0
0
0
0
22
2.8
TTAI
LinStatic
-7.4
0
0
0
0
0
22
0
HTT
LinStatic
-1.76
0
0
0
0
0
22
2.8
HTT
LinStatic
-1.76
0
0
0
0
0
22
0
HTP
LinStatic
0
0
0
0
0
0
22
2.8
HTP
LinStatic
0
0
0
0
0
0
22
0
GT
LinStatic
-2.22E-16
0
0
0
0
0
22
2.8
GT
LinStatic
-2.22E-16
0
0
0
0
0
22
0
GP
LinStatic
1.11E-16
0
0
0
0
0
22
2.8
GP
LinStatic
1.11E-16
0
0
0
0
0
22
0
TOHOP
Combination
Max
-7.4
0
0
0
0
0
22
2.8
TOHOP
Combination
Max
-7.4
0
0
0
0
0
22
0
TOHOP
Combination
Min
-9.16
0
0
0
0
0
22
2.8
TOHOP
Combination
Min
-9.16
0
0
0
0
0
22
0
TH4-5
Combination
Max
1.11E-16
0
0
0
0
0
22
2.8
TH4-5
Combination
Max
1.11E-16
0
0
0
0
0
22
0
TH4-5
Combination
Min
-2.22E-16
0
0
0
0
0
22
2.8
TH4-5
Combination
Min
-2.22E-16
0
0
0
0
0
23
0
TTAI
LinStatic
-0.5893
0
0
0
0
0
23
3.4
TTAI
LinStatic
-0.5893
0
0
0
0
0
23
0
HTT
LinStatic
-0.3179
0
0
0
0
0
23
3.4
HTT
LinStatic
-0.3179
0
0
0
0
0
23
0
HTP
LinStatic
0.1523
0
0
0
0
0
23
3.4
HTP
LinStatic
0.1523
0
0
0
0
0
23
0
GT
LinStatic
-0.1377
0
0
0
0
0
23
3.4
GT
LinStatic
-0.1377
0
0
0
0
0
23
0
GP
LinStatic
0.1829
0
0
0
0
0
23
3.4
GP
LinStatic
0.1829
0
0
0
0
0
23
0
TOHOP
Combination
Max
-0.2876
0
0
0
0
0
23
3.4
TOHOP
Combination
Max
-0.2876
0
0
0
0
0
23
0
TOHOP
Combination
Min
-0.9994
0
0
0
0
0
23
3.4
TOHOP
Combination
Min
-0.9994
0
0
0
0
0
23
0
TH4-5
Combination
Max
0.1829
0
0
0
0
0
23
3.4
TH4-5
Combination
Max
0.1829
0
0
0
0
0
23
0
TH4-5
Combination
Min
-0.1377
0
0
0
0
0
23
3.4
TH4-5
Combination
Min
-0.1377
0
0
0
0
0
24
0
TTAI
LinStatic
0
0
0
0
0
0
24
3.7
TTAI
LinStatic
0
0
0
0
0
0
24
0
HTT
LinStatic
0
0
0
0
0
0
24
3.7
HTT
LinStatic
0
0
0
0
0
0
24
0
HTP
LinStatic
0
0
0
0
0
0
24
3.7
HTP
LinStatic
0
0
0
0
0
0
24
0
GT
LinStatic
0
0
0
0
0
0
24
3.7
GT
LinStatic
0
0
0
0
0
0
24
0
GP
LinStatic
0
0
0
0
0
0
24
3.7
GP
LinStatic
0
0
0
0
0
0
24
0
TOHOP
Combination
Max
0
0
0
0
0
0
24
3.7
TOHOP
Combination
Max
0
0
0
0
0
0
24
0
TOHOP
Combination
Min
0
0
0
0
0
0
24
3.7
TOHOP
Combination
Min
0
0
0
0
0
0
24
0
TH4-5
Combination
Max
0
0
0
0
0
0
24
3.7
TH4-5
Combination
Max
0
0
0
0
0
0
24
0
TH4-5
Combination
Min
0
0
0
0
0
0
24
3.7
TH4-5
Combination
Min
0
0
0
0
0
0
25
0
TTAI
LinStatic
-0.5893
0
0
0
0
0
25
3.4
TTAI
LinStatic
-0.5893
0
0
0
0
0
25
0
HTT
LinStatic
0.1523
0
0
0
0
0
25
3.4
HTT
LinStatic
0.1523
0
0
0
0
0
25
0
HTP
LinStatic
-0.3179
0
0
0
0
0
25
3.4
HTP
LinStatic
-0.3179
0
0
0
0
0
25
0
GT
LinStatic
0.1829
0
0
0
0
0
25
3.4
GT
LinStatic
0.1829
0
0
0
0
0
25
0
GP
LinStatic
-0.1377
0
0
0
0
0
25
3.4
GP
LinStatic
-0.1377
0
0
0
0
0
25
0
TOHOP
Combination
Max
-0.2876
0
0
0
0
0
25
3.4
TOHOP
Combination
Max
-0.2876
0
0
0
0
0
25
0
TOHOP
Combination
Min
-0.9994
0
0
0
0
0
25
3.4
TOHOP
Combination
Min
-0.9994
0
0
0
0
0
25
0
TH4-5
Combination
Max
0.1829
0
0
0
0
0
25
3.4
TH4-5
Combination
Max
0.1829
0
0
0
0
0
25
0
TH4-5
Combination
Min
-0.1377
0
0
0
0
0
25
3.4
TH4-5
Combination
Min
-0.1377
0
0
0
0
0
26
0
TTAI
LinStatic
-7.4
0
0
0
0
0
26
2.8
TTAI
LinStatic
-7.4
0
0
0
0
0
26
0
HTT
LinStatic
0
0
0
0
0
0
26
2.8
HTT
LinStatic
0
0
0
0
0
0
26
0
HTP
LinStatic
-1.76
0
0
0
0
0
26
2.8
HTP
LinStatic
-1.76
0
0
0
0
0
26
0
GT
LinStatic
3.331E-16
0
0
0
0
0
26
2.8
GT
LinStatic
3.331E-16
0
0
0
0
0
26
0
GP
LinStatic
-3.331E-16
0
0
0
0
0
26
2.8
GP
LinStatic
-3.331E-16
0
0
0
0
0
26
0
TOHOP
Combination
Max
-7.4
0
0
0
0
0
26
2.8
TOHOP
Combination
Max
-7.4
0
0
0
0
0
26
0
TOHOP
Combination
Min
-9.16
0
0
0
0
0
26
2.8
TOHOP
Combination
Min
-9.16
0
0
0
0
0
26
0
TH4-5
Combination
Max
3.331E-16
0
0
0
0
0
26
2.8
TH4-5
Combination
Max
3.331E-16
0
0
0
0
0
26
0
TH4-5
Combination
Min
-3.331E-16
0
0
0
0
0
26
2.8
TH4-5
Combination
Min
-3.331E-16
0
0
0
0
0
27
0
TTAI
LinStatic
0
0
0
0
0
0
27
2.2
TTAI
LinStatic
0
0
0
0
0
0
27
0
HTT
LinStatic
0
0
0
0
0
0
27
2.2
HTT
LinStatic
0
0
0
0
0
0
27
0
HTP
LinStatic
0
0
0
0
0
0
27
2.2
HTP
LinStatic
0
0
0
0
0
0
27
0
GT
LinStatic
0
0
0
0
0
0
27
2.2
GT
LinStatic
0
0
0
0
0
0
27
0
GP
LinStatic
0
0
0
0
0
0
27
2.2
GP
LinStatic
0
0
0
0
0
0
27
0
TOHOP
Combination
Max
0
0
0
0
0
0
27
2.2
TOHOP
Combination
Max
0
0
0
0
0
0
27
0
TOHOP
Combination
Min
0
0
0
0
0
0
27
2.2
TOHOP
Combination
Min
0
0
0
0
0
0
27
0
TH4-5
Combination
Max
0
0
0
0
0
0
27
2.2
TH4-5
Combination
Max
0
0
0
0
0
0
27
0
TH4-5
Combination
Min
0
0
0
0
0
0
27
2.2
TH4-5
Combination
Min
0
0
0
0
0
0
28
0
TTAI
LinStatic
-8.9099
0
0
0
0
0
28
2.5
TTAI
LinStatic
-8.9099
0
0
0
0
0
28
0
HTT
LinStatic
-1.3426
0
0
0
0
0
28
2.5
HTT
LinStatic
-1.3426
0
0
0
0
0
28
0
HTP
LinStatic
-0.6977
0
0
0
0
0
28
2.5
HTP
LinStatic
-0.6977
0
0
0
0
0
28
0
GT
LinStatic
0.3617
0
0
0
0
0
28
2.5
GT
LinStatic
0.3617
0
0
0
0
0
28
0
GP
LinStatic
-0.3876
0
0
0
0
0
28
2.5
GP
LinStatic
-0.3876
0
0
0
0
0
28
0
TOHOP
Combination
Max
-8.5482
0
0
0
0
0
28
2.5
TOHOP
Combination
Max
-8.5482
0
0
0
0
0
28
0
TOHOP
Combination
Min
-11.095
0
0
0
0
0
28
2.5
TOHOP
Combination
Min
-11.095
0
0
0
0
0
28
0
TH4-5
Combination
Max
0.3617
0
0
0
0
0
28
2.5
TH4-5
Combination
Max
0.3617
0
0
0
0
0
28
0
TH4-5
Combination
Min
-0.3876
0
0
0
0
0
28
2.5
TH4-5
Combination
Min
-0.3876
0
0
0
0
0
29
0
TTAI
LinStatic
2.842E-14
0
0
0
0
0
29
2.5
TTAI
LinStatic
2.842E-14
0
0
0
0
0
29
0
HTT
LinStatic
3.553E-15
0
0
0
0
0
29
2.5
HTT
LinStatic
3.553E-15
0
0
0
0
0
29
0
HTP
LinStatic
1.776E-15
0
0
0
0
0
29
2.5
HTP
LinStatic
1.776E-15
0
0
0
0
0
29
0
GT
LinStatic
1.11E-16
0
0
0
0
0
29
2.5
GT
LinStatic
1.11E-16
0
0
0
0
0
29
0
GP
LinStatic
-1.665E-16
0
0
0
0
0
29
2.5
GP
LinStatic
-1.665E-16
0
0
0
0
0
29
0
TOHOP
Combination
Max
3.332E-14
0
0
0
0
0
29
2.5
TOHOP
Combination
Max
3.332E-14
0
0
0
0
0
29
0
TOHOP
Combination
Min
2.826E-14
0
0
0
0
0
29
2.5
TOHOP
Combination
Min
2.826E-14
0
0
0
0
0
29
0
TH4-5
Combination
Max
1.11E-16
0
0
0
0
0
29
2.5
TH4-5
Combination
Max
1.11E-16
0
0
0
0
0
29
0
TH4-5
Combination
Min
-1.665E-16
0
0
0
0
0
29
2.5
TH4-5
Combination
Min
-1.665E-16
0
0
0
0
0
30
0
TTAI
LinStatic
6.6167
0
0
0
0
0
30
2.5
TTAI
LinStatic
6.6167
0
0
0
0
0
30
0
HTT
LinStatic
0.7442
0
0
0
0
0
30
2.5
HTT
LinStatic
0.7442
0
0
0
0
0
30
0
HTP
LinStatic
0.7442
0
0
0
0
0
30
2.5
HTP
LinStatic
0.7442
0
0
0
0
0
30
0
GT
LinStatic
-0.0122
0
0
0
0
0
30
2.5
GT
LinStatic
-0.0122
0
0
0
0
0
30
0
GP
LinStatic
-0.0122
0
0
0
0
0
30
2.5
GP
LinStatic
-0.0122
0
0
0
0
0
30
0
TOHOP
Combination
Max
7.9562
0
0
0
0
0
30
2.5
TOHOP
Combination
Max
7.9562
0
0
0
0
0
30
0
TOHOP
Combination
Min
6.6044
0
0
0
0
0
30
2.5
TOHOP
Combination
Min
6.6044
0
0
0
0
0
30
0
TH4-5
Combination
Max
-0.0122
0
0
0
0
0
30
2.5
TH4-5
Combination
Max
-0.0122
0
0
0
0
0
30
0
TH4-5
Combination
Min
-0.0122
0
0
0
0
0
30
2.5
TH4-5
Combination
Min
-0.0122
0
0
0
0
0
31
0
TTAI
LinStatic
0
0
0
0
0
0
31
2.5
TTAI
LinStatic
0
0
0
0
0
0
31
0
HTT
LinStatic
1.776E-15
0
0
0
0
0
31
2.5
HTT
LinStatic
1.776E-15
0
0
0
0
0
31
0
HTP
LinStatic
3.553E-15
0
0
0
0
0
31
2.5
HTP
LinStatic
3.553E-15
0
0
0
0
0
31
0
GT
LinStatic
-1.665E-16
0
0
0
0
0
31
2.5
GT
LinStatic
-1.665E-16
0
0
0
0
0
31
0
GP
LinStatic
8.327E-17
0
0
0
0
0
31
2.5
GP
LinStatic
8.327E-17
0
0
0
0
0
31
0
TOHOP
Combination
Max
4.871E-15
0
0
0
0
0
31
2.5
TOHOP
Combination
Max
4.871E-15
0
0
0
0
0
31
0
TOHOP
Combination
Min
-1.665E-16
0
0
0
0
0
31
2.5
TOHOP
Combination
Min
-1.665E-16
0
0
0
0
0
31
0
TH4-5
Combination
Max
8.327E-17
0
0
0
0
0
31
2.5
TH4-5
Combination
Max
8.327E-17
0
0
0
0
0
31
0
TH4-5
Combination
Min
-1.665E-16
0
0
0
0
0
31
2.5
TH4-5
Combination
Min
-1.665E-16
0
0
0
0
0
32
0
TTAI
LinStatic
-8.9099
0
0
0
0
0
32
2.5
TTAI
LinStatic
-8.9099
0
0
0
0
0
32
0
HTT
LinStatic
-0.6977
0
0
0
0
0
32
2.5
HTT
LinStatic
-0.6977
0
0
0
0
0
32
0
HTP
LinStatic
-1.3426
0
0
0
0
0
32
2.5
HTP
LinStatic
-1.3426
0
0
0
0
0
32
0
GT
LinStatic
-0.3876
0
0
0
0
0
32
2.5
GT
LinStatic
-0.3876
0
0
0
0
0
32
0
GP
LinStatic
0.3617
0
0
0
0
0
32
2.5
GP
LinStatic
0.3617
0
0
0
0
0
32
0
TOHOP
Combination
Max
-8.5482
0
0
0
0
0
32
2.5
TOHOP
Combination
Max
-8.5482
0
0
0
0
0
32
0
TOHOP
Combination
Min
-11.095
0
0
0
0
0
32
2.5
TOHOP
Combination
Min
-11.095
0
0
0
0
0
32
0
TH4-5
Combination
Max
0.3617
0
0
0
0
0
32
2.5
TH4-5
Combination
Max
0.3617
0
0
0
0
0
32
0
TH4-5
Combination
Min
-0.3876
0
0
0
0
0
32
2.5
TH4-5
Combination
Min
-0.3876
0
0
0
0
0
33
0
TTAI
LinStatic
-62.8356
0
0
0
0
0
33
3.90512
TTAI
LinStatic
-62.8356
0
0
0
0
0
33
0
HTT
LinStatic
-11.1689
0
0
0
0
0
33
3.90512
HTT
LinStatic
-11.1689
0
0
0
0
0
33
0
HTP
LinStatic
-3.1822
0
0
0
0
0
33
3.90512
HTP
LinStatic
-3.1822
0
0
0
0
0
33
0
GT
LinStatic
0.7175
0
0
0
0
0
33
3.90512
GT
LinStatic
0.7175
0
0
0
0
0
33
0
GP
LinStatic
-0.6983
0
0
0
0
0
33
3.90512
GP
LinStatic
-0.6983
0
0
0
0
0
33
0
TOHOP
Combination
Max
-62.118
0
0
0
0
0
33
3.90512
TOHOP
Combination
Max
-62.118
0
0
0
0
0
33
0
TOHOP
Combination
Min
-76.38
0
0
0
0
0
33
3.90512
TOHOP
Combination
Min
-76.38
0
0
0
0
0
33
0
TH4-5
Combination
Max
0.7175
0
0
0
0
0
33
3.90512
TH4-5
Combination
Max
0.7175
0
0
0
0
0
33
0
TH4-5
Combination
Min
-0.6983
0
0
0
0
0
33
3.90512
TH4-5
Combination
Min
-0.6983
0
0
0
0
0
34
0
TTAI
LinStatic
39.0501
0
0
0
0
0
34
3.90512
TTAI
LinStatic
39.0501
0
0
0
0
0
34
0
HTT
LinStatic
6.3209
0
0
0
0
0
34
3.90512
HTT
LinStatic
6.3209
0
0
0
0
0
34
0
HTP
LinStatic
2.5003
0
0
0
0
0
34
3.90512
HTP
LinStatic
2.5003
0
0
0
0
0
34
0
GT
LinStatic
-0.5638
0
0
0
0
0
34
3.90512
GT
LinStatic
-0.5638
0
0
0
0
0
34
0
GP
LinStatic
0.5487
0
0
0
0
0
34
3.90512
GP
LinStatic
0.5487
0
0
0
0
0
34
0
TOHOP
Combination
Max
47.483
0
0
0
0
0
34
3.90512
TOHOP
Combination
Max
47.483
0
0
0
0
0
34
0
TOHOP
Combination
Min
38.4863
0
0
0
0
0
34
3.90512
TOHOP
Combination
Min
38.4863
0
0
0
0
0
34
0
TH4-5
Combination
Max
0.5487
0
0
0
0
0
34
3.90512
TH4-5
Combination
Max
0.5487
0
0
0
0
0
34
0
TH4-5
Combination
Min
-0.5638
0
0
0
0
0
34
3.90512
TH4-5
Combination
Min
-0.5638
0
0
0
0
0
35
0
TTAI
LinStatic
-24.491
0
0
0
0
0
35
4.31393
TTAI
LinStatic
-24.491
0
0
0
0
0
35
0
HTT
LinStatic
-3.1819
0
0
0
0
0
35
4.31393
HTT
LinStatic
-3.1819
0
0
0
0
0
35
0
HTP
LinStatic
-2.2275
0
0
0
0
0
35
4.31393
HTP
LinStatic
-2.2275
0
0
0
0
0
35
0
GT
LinStatic
0.5023
0
0
0
0
0
35
4.31393
GT
LinStatic
0.5023
0
0
0
0
0
35
0
GP
LinStatic
-0.4888
0
0
0
0
0
35
4.31393
GP
LinStatic
-0.4888
0
0
0
0
0
35
0
TOHOP
Combination
Max
-23.9887
0
0
0
0
0
35
4.31393
TOHOP
Combination
Max
-23.9887
0
0
0
0
0
35
0
TOHOP
Combination
Min
-29.7993
0
0
0
0
0
35
4.31393
TOHOP
Combination
Min
-29.7993
0
0
0
0
0
35
0
TH4-5
Combination
Max
0.5023
0
0
0
0
0
35
4.31393
TH4-5
Combination
Max
0.5023
0
0
0
0
0
35
0
TH4-5
Combination
Min
-0.4888
0
0
0
0
0
35
4.31393
TH4-5
Combination
Min
-0.4888
0
0
0
0
0
36
0
TTAI
LinStatic
-2.0476
0
0
0
0
0
36
4.31393
TTAI
LinStatic
-2.0476
0
0
0
0
0
36
0
HTT
LinStatic
-1.3162
0
0
0
0
0
36
4.31393
HTT
LinStatic
-1.3162
0
0
0
0
0
36
0
HTP
LinStatic
0.9491
0
0
0
0
0
36
4.31393
HTP
LinStatic
0.9491
0
0
0
0
0
36
0
GT
LinStatic
-0.0562
0
0
0
0
0
36
4.31393
GT
LinStatic
-0.0562
0
0
0
0
0
36
0
GP
LinStatic
0.0452
0
0
0
0
0
36
4.31393
GP
LinStatic
0.0452
0
0
0
0
0
36
0
TOHOP
Combination
Max
-1.0984
0
0
0
0
0
36
4.31393
TOHOP
Combination
Max
-1.0984
0
0
0
0
0
36
0
TOHOP
Combination
Min
-3.3638
0
0
0
0
0
36
4.31393
TOHOP
Combination
Min
-3.3638
0
0
0
0
0
36
0
TH4-5
Combination
Max
0.0452
0
0
0
0
0
36
4.31393
TH4-5
Combination
Max
0.0452
0
0
0
0
0
36
0
TH4-5
Combination
Min
-0.0562
0
0
0
0
0
36
4.31393
TH4-5
Combination
Min
-0.0562
0
0
0
0
0
37
0
TTAI
LinStatic
2.653
0
0
0
0
0
37
4.7634
TTAI
LinStatic
2.653
0
0
0
0
0
37
0
HTT
LinStatic
1.6269
0
0
0
0
0
37
4.7634
HTT
LinStatic
1.6269
0
0
0
0
0
37
0
HTP
LinStatic
-1.0742
0
0
0
0
0
37
4.7634
HTP
LinStatic
-1.0742
0
0
0
0
0
37
0
GT
LinStatic
0.2293
0
0
0
0
0
37
4.7634
GT
LinStatic
0.2293
0
0
0
0
0
37
0
GP
LinStatic
-0.2773
0
0
0
0
0
37
4.7634
GP
LinStatic
-0.2773
0
0
0
0
0
37
0
TOHOP
Combination
Max
4.3235
0
0
0
0
0
37
4.7634
TOHOP
Combination
Max
4.3235
0
0
0
0
0
37
0
TOHOP
Combination
Min
1.4366
0
0
0
0
0
37
4.7634
TOHOP
Combination
Min
1.4366
0
0
0
0
0
37
0
TH4-5
Combination
Max
0.2293
0
0
0
0
0
37
4.7634
TH4-5
Combination
Max
0.2293
0
0
0
0
0
37
0
TH4-5
Combination
Min
-0.2773
0
0
0
0
0
37
4.7634
TH4-5
Combination
Min
-0.2773
0
0
0
0
0
38
0
TTAI
LinStatic
2.653
0
0
0
0
0
38
4.7634
TTAI
LinStatic
2.653
0
0
0
0
0
38
0
HTT
LinStatic
-1.0742
0
0
0
0
0
38
4.7634
HTT
LinStatic
-1.0742
0
0
0
0
0
38
0
HTP
LinStatic
1.6269
0
0
0
0
0
38
4.7634
HTP
LinStatic
1.6269
0
0
0
0
0
38
0
GT
LinStatic
-0.2773
0
0
0
0
0
38
4.7634
GT
LinStatic
-0.2773
0
0
0
0
0
38
0
GP
LinStatic
0.2293
0
0
0
0
0
38
4.7634
GP
LinStatic
0.2293
0
0
0
0
0
38
0
TOHOP
Combination
Max
4.3235
0
0
0
0
0
38
4.7634
TOHOP
Combination
Max
4.3235
0
0
0
0
0
38
0
TOHOP
Combination
Min
1.4366
0
0
0
0
0
38
4.7634
TOHOP
Combination
Min
1.4366
0
0
0
0
0
38
0
TH4-5
Combination
Max
0.2293
0
0
0
0
0
38
4.7634
TH4-5
Combination
Max
0.2293
0
0
0
0
0
38
0
TH4-5
Combination
Min
-0.2773
0
0
0
0
0
38
4.7634
TH4-5
Combination
Min
-0.2773
0
0
0
0
0
39
0
TTAI
LinStatic
-2.0476
0
0
0
0
0
39
4.31393
TTAI
LinStatic
-2.0476
0
0
0
0
0
39
0
HTT
LinStatic
0.9491
0
0
0
0
0
39
4.31393
HTT
LinStatic
0.9491
0
0
0
0
0
39
0
HTP
LinStatic
-1.3162
0
0
0
0
0
39
4.31393
HTP
LinStatic
-1.3162
0
0
0
0
0
39
0
GT
LinStatic
0.0452
0
0
0
0
0
39
4.31393
GT
LinStatic
0.0452
0
0
0
0
0
39
0
GP
LinStatic
-0.0562
0
0
0
0
0
39
4.31393
GP
LinStatic
-0.0562
0
0
0
0
0
39
0
TOHOP
Combination
Max
-1.0984
0
0
0
0
0
39
4.31393
TOHOP
Combination
Max
-1.0984
0
0
0
0
0
39
0
TOHOP
Combination
Min
-3.3638
0
0
0
0
0
39
4.31393
TOHOP
Combination
Min
-3.3638
0
0
0
0
0
39
0
TH4-5
Combination
Max
0.0452
0
0
0
0
0
39
4.31393
TH4-5
Combination
Max
0.0452
0
0
0
0
0
39
0
TH4-5
Combination
Min
-0.0562
0
0
0
0
0
39
4.31393
TH4-5
Combination
Min
-0.0562
0
0
0
0
0
40
0
TTAI
LinStatic
-24.491
0
0
0
0
0
40
4.31393
TTAI
LinStatic
-24.491
0
0
0
0
0
40
0
HTT
LinStatic
-2.2275
0
0
0
0
0
40
4.31393
HTT
LinStatic
-2.2275
0
0
0
0
0
40
0
HTP
LinStatic
-3.1819
0
0
0
0
0
40
4.31393
HTP
LinStatic
-3.1819
0
0
0
0
0
40
0
GT
LinStatic
-0.4888
0
0
0
0
0
40
4.31393
GT
LinStatic
-0.4888
0
0
0
0
0
40
0
GP
LinStatic
0.5023
0
0
0
0
0
40
4.31393
GP
LinStatic
0.5023
0
0
0
0
0
40
0
TOHOP
Combination
Max
-23.9887
0
0
0
0
0
40
4.31393
TOHOP
Combination
Max
-23.9887
0
0
0
0
0
40
0
TOHOP
Combination
Min
-29.7993
0
0
0
0
0
40
4.31393
TOHOP
Combination
Min
-29.7993
0
0
0
0
0
40
0
TH4-5
Combination
Max
0.5023
0
0
0
0
0
40
4.31393
TH4-5
Combination
Max
0.5023
0
0
0
0
0
40
0
TH4-5
Combination
Min
-0.4888
0
0
0
0
0
40
4.31393
TH4-5
Combination
Min
-0.4888
0
0
0
0
0
41
0
TTAI
LinStatic
39.0501
0
0
0
0
0
41
3.90512
TTAI
LinStatic
39.0501
0
0
0
0
0
41
0
HTT
LinStatic
2.5003
0
0
0
0
0
41
3.90512
HTT
LinStatic
2.5003
0
0
0
0
0
41
0
HTP
LinStatic
6.3209
0
0
0
0
0
41
3.90512
HTP
LinStatic
6.3209
0
0
0
0
0
41
0
GT
LinStatic
0.5487
0
0
0
0
0
41
3.90512
GT
LinStatic
0.5487
0
0
0
0
0
41
0
GP
LinStatic
-0.5638
0
0
0
0
0
41
3.90512
GP
LinStatic
-0.5638
0
0
0
0
0
41
0
TOHOP
Combination
Max
47.483
0
0
0
0
0
41
3.90512
TOHOP
Combination
Max
47.483
0
0
0
0
0
41
0
TOHOP
Combination
Min
38.4863
0
0
0
0
0
41
3.90512
TOHOP
Combination
Min
38.4863
0
0
0
0
0
41
0
TH4-5
Combination
Max
0.5487
0
0
0
0
0
41
3.90512
TH4-5
Combination
Max
0.5487
0
0
0
0
0
41
0
TH4-5
Combination
Min
-0.5638
0
0
0
0
0
41
3.90512
TH4-5
Combination
Min
-0.5638
0
0
0
0
0
42
0
TTAI
LinStatic
-62.8356
0
0
0
0
0
42
3.90512
TTAI
LinStatic
-62.8356
0
0
0
0
0
42
0
HTT
LinStatic
-3.1822
0
0
0
0
0
42
3.90512
HTT
LinStatic
-3.1822
0
0
0
0
0
42
0
HTP
LinStatic
-11.1689
0
0
0
0
0
42
3.90512
HTP
LinStatic
-11.1689
0
0
0
0
0
42
0
GT
LinStatic
-0.6983
0
0
0
0
0
42
3.90512
GT
LinStatic
-0.6983
0
0
0
0
0
42
0
GP
LinStatic
0.7175
0
0
0
0
0
42
3.90512
GP
LinStatic
0.7175
0
0
0
0
0
42
0
TOHOP
Combination
Max
-62.118
0
0
0
0
0
42
3.90512
TOHOP
Combination
Max
-62.118
0
0
0
0
0
42
0
TOHOP
Combination
Min
-76.38
0
0
0
0
0
42
3.90512
TOHOP
Combination
Min
-76.38
0
0
0
0
0
42
0
TH4-5
Combination
Max
0.7175
0
0
0
0
0
42
3.90512
TH4-5
Combination
Max
0.7175
0
0
0
0
0
42
0
TH4-5
Combination
Min
-0.6983
0
0
0
0
0
42
3.90512
TH4-5
Combination
Min
-0.6983
0
0
0
0
0
43
0
TTAI
LinStatic
13.2587
0
0
0
0
0
43
3.72022
TTAI
LinStatic
13.2587
0
0
0
0
0
43
0
HTT
LinStatic
1.9979
0
0
0
0
0
43
3.72022
HTT
LinStatic
1.9979
0
0
0
0
0
43
0
HTP
LinStatic
1.0382
0
0
0
0
0
43
3.72022
HTP
LinStatic
1.0382
0
0
0
0
0
43
0
GT
LinStatic
-0.6573
0
0
0
0
0
43
3.72022
GT
LinStatic
-0.6573
0
0
0
0
0
43
0
GP
LinStatic
0.7345
0
0
0
0
0
43
3.72022
GP
LinStatic
0.7345
0
0
0
0
0
43
0
TOHOP
Combination
Max
16.6523
0
0
0
0
0
43
3.72022
TOHOP
Combination
Max
16.6523
0
0
0
0
0
43
0
TOHOP
Combination
Min
12.6014
0
0
0
0
0
43
3.72022
TOHOP
Combination
Min
12.6014
0
0
0
0
0
43
0
TH4-5
Combination
Max
0.7345
0
0
0
0
0
43
3.72022
TH4-5
Combination
Max
0.7345
0
0
0
0
0
43
0
TH4-5
Combination
Min
-0.6573
0
0
0
0
0
43
3.72022
TH4-5
Combination
Min
-0.6573
0
0
0
0
0
44
0
TTAI
LinStatic
-3.2817
0
0
0
0
0
44
4.10366
TTAI
LinStatic
-3.2817
0
0
0
0
0
44
0
HTT
LinStatic
0.1634
0
0
0
0
0
44
4.10366
HTT
LinStatic
0.1634
0
0
0
0
0
44
0
HTP
LinStatic
-0.8952
0
0
0
0
0
44
4.10366
HTP
LinStatic
-0.8952
0
0
0
0
0
44
0
GT
LinStatic
0.499
0
0
0
0
0
44
4.10366
GT
LinStatic
0.499
0
0
0
0
0
44
0
GP
LinStatic
-0.51
0
0
0
0
0
44
4.10366
GP
LinStatic
-0.51
0
0
0
0
0
44
0
TOHOP
Combination
Max
-2.6856
0
0
0
0
0
44
4.10366
TOHOP
Combination
Max
-2.6856
0
0
0
0
0
44
0
TOHOP
Combination
Min
-4.5464
0
0
0
0
0
44
4.10366
TOHOP
Combination
Min
-4.5464
0
0
0
0
0
44
0
TH4-5
Combination
Max
0.499
0
0
0
0
0
44
4.10366
TH4-5
Combination
Max
0.499
0
0
0
0
0
44
0
TH4-5
Combination
Min
-0.51
0
0
0
0
0
44
4.10366
TH4-5
Combination
Min
-0.51
0
0
0
0
0
45
0
TTAI
LinStatic
-3.2817
0
0
0
0
0
45
4.10366
TTAI
LinStatic
-3.2817
0
0
0
0
0
45
0
HTT
LinStatic
-0.8952
0
0
0
0
0
45
4.10366
HTT
LinStatic
-0.8952
0
0
0
0
0
45
0
HTP
LinStatic
0.1634
0
0
0
0
0
45
4.10366
HTP
LinStatic
0.1634
0
0
0
0
0
45
0
GT
LinStatic
-0.51
0
0
0
0
0
45
4.10366
GT
LinStatic
-0.51
0
0
0
0
0
45
0
GP
LinStatic
0.499
0
0
0
0
0
45
4.10366
GP
LinStatic
0.499
0
0
0
0
0
45
0
TOHOP
Combination
Max
-2.6856
0
0
0
0
0
45
4.10366
TOHOP
Combination
Max
-2.6856
0
0
0
0
0
45
0
TOHOP
Combination
Min
-4.5464
0
0
0
0
0
45
4.10366
TOHOP
Combination
Min
-4.5464
0
0
0
0
0
45
0
TH4-5
Combination
Max
0.499
0
0
0
0
0
45
4.10366
TH4-5
Combination
Max
0.499
0
0
0
0
0
45
0
TH4-5
Combination
Min
-0.51
0
0
0
0
0
45
4.10366
TH4-5
Combination
Min
-0.51
0
0
0
0
0
46
0
TTAI
LinStatic
13.2587
0
0
0
0
0
46
3.72022
TTAI
LinStatic
13.2587
0
0
0
0
0
46
0
HTT
LinStatic
1.0382
0
0
0
0
0
46
3.72022
HTT
LinStatic
1.0382
0
0
0
0
0
46
0
HTP
LinStatic
1.9979
0
0
0
0
0
46
3.72022
HTP
LinStatic
1.9979
0
0
0
0
0
46
0
GT
LinStatic
0.7345
0
0
0
0
0
46
3.72022
GT
LinStatic
0.7345
0
0
0
0
0
46
0
GP
LinStatic
-0.6573
0
0
0
0
0
46
3.72022
GP
LinStatic
-0.6573
0
0
0
0
0
46
0
TOHOP
Combination
Max
16.6523
0
0
0
0
0
46
3.72022
TOHOP
Combination
Max
16.6523
0
0
0
0
0
46
0
TOHOP
Combination
Min
12.6014
0
0
0
0
0
46
3.72022
TOHOP
Combination
Min
12.6014
0
0
0
0
0
46
0
TH4-5
Combination
Max
0.7345
0
0
0
0
0
46
3.72022
TH4-5
Combination
Max
0.7345
0
0
0
0
0
46
0
TH4-5
Combination
Min
-0.6573
0
0
0
0
0
46
3.72022
TH4-5
Combination
Min
-0.6573
0
0
0
0
0
TABLE: Steel Design 2 - PMM Details - AISC-ASD89
Frame
DesignSect
Combo
P
TotalRatio
MMajRatio
MMinRatio
Text
Text
Text
Ton
Unitless
Unitless
Unitless
21
2L55X55X5-10
TOHOP
0
0
0
0
22
2L75X75X5-10
TOHOP
-9.16
0.860729
0
0
23
2L75X75X5-10
TOHOP
-0.9994
0.134047
0
0
24
2L55X55X5-10
TOHOP
0
0
0
0
25
2L75X75X5-10
TOHOP
-0.9994
0.134047
0
0
26
2L75X75X5-10
TOHOP
-9.16
0.860729
0
0
27
2L55X55X5-10
TOHOP
0
0
0
0
1
2L125X125X10-10
TOHOP
-48.5992
0.804424
0
0
3
2L125X125X10-10
TOHOP
51.491
0.043469
0
0
4
2L125X125X10-10
TOHOP
51.491
0.043469
0
0
7
2L125X125X10-10
TOHOP
67.7649
0.929632
0
0
8
2L125X125X10-10
TOHOP
-28.4961
0.536627
0
0
9
2L125X125X10-10
TOHOP
-28.4961
0.536627
0
0
10
2L125X125X10-10
TOHOP
-46.7303
0.880008
0
0
11
2L125X125X10-10
TOHOP
-30.2912
0.570433
0
0
12
2L125X125X10-10
TOHOP
-30.2912
0.570433
0
0
13
2L125X125X10-10
TOHOP
-46.7303
0.880008
0
0
14
2L125X125X10-10
TOHOP
-28.4961
0.536627
0
0
15
2L125X125X10-10
TOHOP
-28.4961
0.536627
0
0
16
2L125X125X10-10
TOHOP
67.7649
0.929632
0
0
33
2L150X150X16-10
TOHOP
-76.38
0.798872
0
0
35
2L150X150X16-10
TOHOP
-29.7993
0.334599
0
0
37
2L150X150X16-10
TOHOP
4.3235
0.03132
0
0
38
2L150X150X16-10
TOHOP
4.3235
0.03132
0
0
40
2L150X150X16-10
TOHOP
-29.7993
0.334599
0
0
42
2L150X150X16-10
TOHOP
-76.38
0.798872
0
0
34
2L150X150X16-10
TOHOP
47.483
0.343971
0
0
36
2L150X150X16-10
TOHOP
-3.3638
0.03777
0
0
39
2L150X150X16-10
TOHOP
-3.3638
0.03777
0
0
41
2L150X150X16-10
TOHOP
47.483
0.343971
0
0
32
2L75X75X5-10
TOHOP
-11.095
0.909905
0
0
28
2L75X75X5-10
TOHOP
-11.095
0.909905
0
0
20
2L75X75X8-10
TOHOP
-13.2039
0.924936
0
0
19
2L75X75X8-10
TOHOP
-13.2039
0.924936
0
0
18
2L75X75X8-10
TOHOP
-13.2039
0.924936
0
0
17
2L75X75X8-10
TOHOP
-13.2039
0.924936
0
0
29
2L55X55X5-10
TOHOP
2.826E-14
0
0
0
43
2L150X150X16-10
TOHOP
16.6523
0.120631
0
0
44
2L150X150X16-10
TOHOP
-4.5464
0.049163
0
0
45
2L150X150X16-10
TOHOP
-4.5464
0.049163
0
0
46
2L150X150X16-10
TOHOP
16.6523
0.120631
0
0
31
2L55X55X5-10
TOHOP
-1.665E-16
0
0
0
30
2L55X55X5-10
TOHOP
7.9562
0.498959
0
0
2
2L125X125X10-10
TOHOP
52.174
0.082434
0
0
5
2L125X125X10-10
TOHOP
52.174
0.082434
0
0
6
2L125X125X10-10
TOHOP
-48.5992
0.804424
0
0
TÍNH TOÁN VÀ CẤU TẠO CÁC MẮT DÀN
SỐ THỨ TỰ CÁC MẮT DÀN TÍNH TOÁN
1. NUÙT LIEÂN KEÁT DAØN VÔÙI COÄT
Nuùt döôùi (Mắt 1)
a) Tính liên kết thanh cánh dưới vào bản mã:
Thanh 1 với nội lực N1 = -48.599T
Lấy chiều cao đường hàn sống hs = 8 mm; đường hàn mép hm = 6 mm
Chiều dài đường hàn sống tính theo :
chọn ls=20cm
Chiều dài đường hàn mép tính theo :
chọn lm=10cm.
Trong đó : K: hệ số phân phối nội lực, K = 0,7 : thép đều cạnh
N : nội lực trong thanh.
b) Thanh xiên 33 với nội lực N22 =-76.38T
Lấy chiều cao đường hàn sống hs = 6 mm; đường hàn mép hm = 8 mm
chọn ls = 30 cm.
Chiều dài đường hàn mép tính theo :
chọn lm=15 cm.
c) Chọn bề dày sườn gối dỡ :
Do tại mắt dưới đầu dàn chỉ tồn tại phản lực ngang gây nén cho thang cánh dưới nên ta tính bề dày sườn gối đỡ theo điều kịên chịu ép mặt .
Các thành phần phản lực tại nút đầu dàn :
Ra= 48.89 T
H =107.27 T
Theo điều kiện chịu ép mặt , ta có bề dày sườn gối đỡ như sau :
Với Rem= 2800 KG/cm2
chọn bs=20cm,.L=55cm
d)Tính đường hàn liên kết bản mã vào sườn gối đỡ:
ta có : H=107.27T
e = L/2-18-Z0=55/2-18-5.42=4.08cm.
lh=L-2=55-2=53cm.
Chiều cao đường hàn :
chọn hh=2cm
e)Tính bulông liên kết sườn gối vào bản cánh cột :
Do không tồn tại thành phần phản lực ngang gây kéo thanh cánh dưới nên bulong lien kết sườn gối vào bản cánh cột được lấy theo cấu tạo :chọn 8 bulong 20
Bulong chọn theo cấu tạo được bố trí 2 hàng đứng khoảng cách tứ bulong trên cùng đến mép trên sườn gối không nhỏ hơn 2d , khoảng cách các bulong trên mỗi hàngkhông lớn hơn 8d .
f). Tính toán gối đỡ :
Bề rộng gối đỡ ; bề dày gối đỡ lấy lớn hơn bề dày sườn gối sao cho sườn gối đặt lọt vào trong mặt gối đỡ .Mép ngoài sườn gối cách mép ngoài gối đỡ tối thiểu là 5 đến 10 mm. Chiều dài gối đỡ phụ thuộc vào chiều dày đường hàn lien kết gối đỡ vào cột .
Gối đỡ chịu phản lực Ra= 48.89 T . Gối đỡ liên kết vào cột bằng 2 đường hàn góc .
Chọn chiều dày gối đỡ bề rộng gối đỡ bg=300 mm.
Chọn chiều cao đường hàn góc liên kết gối đỡ vào cánh cột hh=1 cm .
Chiều dài đường hàn góc tính theo :
chọn lh = 20cm
Nuùt treân (MẮT 2)
a)Tính liên kết thanh dàn phân nhỏ và thanh cánh trên vào bản mã :
*Thanh cánh trên :
Ta có phản lực thanh cánh trên gây kéo H1= 67.76T
Thanh cánh trên được lien kết bằng 4 đường hàn góc .chọn chiều cao đường hàn góc hh=10mm .
Ta co tổng chiều dài đường hàn là :
chọn chiều dài mỗi đường hàn là 10cm.
Ba bulong liên kết bản mã nối vào thanh cánh chỉ bố trí cấu tạo 2Ø20
Diện tích tiết diện bản nối :
chọn
Liên kết bản nối vào bản đậy mút đầu cột lấy tương tự như liên kết với thép góc chính .
*Thanh dàn phân nhỏ vào bản mã :
Vì nội lực thang dàn phân nhỏ rất bé nên có thể hàn theo cấu tạo :
b)Tính hai bản gối :
Bản gối chịu moment lệch tâm H1.e.Chọn tiết diện bản gối .Chiều cao tiết diện đương hàn lấy theo điều kiện chịu uốn :
Với Lh=60-1=59cm .
Ra=1,5.67,76=101.64 T.
Vậy chiều cao đường hàn :
chọn hh=1,5cm
bulông liên kết bản nối và bản cánh theo cấu tạo Ø20 :
2.NUÙT TRUNG GIAN NOÁI THANH BUÏNG VAØO THANH CAÙNH :
Nuùt 3 :
Chieàu daøi ñöôøng haøn soáng vaø meùp lieân keát thanh xieân ñaàu daøn X33 vaøo baûn maõ la ø(choïn chieàu cao ñöôøng haøn soáng vaø meùp laø hhs = 8mm, hhm = 6mm).
lhs =+1=+1=36.36cm,
choïn lhs =37cm
lhm =+1=+1 =21.2cm,
choïn lhm=22cm
Chieàu daøi ñöôøng haøn soáng vaø meùp lieân keát thanh xieân X35 vaøo baûn maõ laø(choïn chieàu cao ñöôøng haøn soáng vaø meùp laø hhs = 6mm, hhm = 6mm).
lhs =+1=+1=19.39cm,choïn lhs =20cm
lhm =+1=+1 =8.88cm, choïn lhm=15cm
Chieàu daøi ñöôøng haøn soáng vaø meùp lieân keát thanh caùnh treân T7 vaøo baûn maõ laø (choïn chieàu cao ñöôøng haøn soáng .vaø meùp laø hhs = 5mm, hhm = 5mm).
Löïc tính toaùn noái soáng vaø meùp theùp caùnh
=>lhs =+1=+1=59.9cm,
choïn lhs = 60cm
=>lhm =+1=+1 =26.95cm, choïn lhm=60cm
Nuùt 4 :
Chieàu daøi ñöôøng haøn soáng vaø meùp lieân keát thanh xieân X34 vaøo baûn maõ laø(choïn chieàu cao ñöôøng haøn soáng vaø meùp laø hhs = 6mm, hhm = 6mm).
lhs =+1=+1=22.98cm,choïn lhs =23cm
lhm =+1=+1 =10.4cm, choïn lhm=15cm
Chieàu daøi ñöôøng haøn soáng vaø meùp lieân keát thanh ñöùng Ñ22 vaøo baûn maõ laø(choïn chieàu cao ñöôøng haøn soáng vaø meùp laø hhs = 5mm, hhm = 5mm).
lhs =+1=+1= 5.2cm,choïnlhs=10cm
lhm =+1=+1 =2.8cm, choïn lhm= 10cm
Chieàu daøi ñöôøng haøn soáng vaø meùp lieân keát thanh xieân X35 vaøo baûn maõ laø(choïn chieàu cao ñöôøng haøn soáng vaø meùp laø hhs = 6mm, hhm = 6mm).
lhs =+1=+1=14.8 cm,choïnlhs=15cm
lhm =+1=+1 =6.9cm, choïn lhm=10cm
Chieàu daøi ñöôøng haøn soáng vaø meùp lieân keát thanh caùnh döôùi D1,2 vaøo baûn maõ laø (choïn chieàu cao ñöôøng haøn soáng vaø meùp laø hhs = 5mm, hhm = 5mm).
Löïc tính toaùn noái soáng vaø meùp theùp caùnh.
Ns =
= = 51013(KG)
Nm =
= = 29987(KG)
=>lhs =+1=+1=40.48cm,
choïn lhs =50 cm
=>lhm =+1=+1 =23.799cm, choïn lhm=50cm
Nuùt 5 :
Chieàu daøi ñöôøng haøn soáng vaø meùp lieân keát thanh xieân X35 vaøo baûn maõ laø(choïn chieàu cao ñöôøng haøn soáng vaø meùp laø hhs = 6mm, hhm = 6mm).
lhs =+1=+1= 19.39cm,choïnlhs=20cm
lhm =+1=+1 =8.88 cm, choïn lhm=10cm
Chieàu daøi ñöôøng haøn soáng vaø meùp lieân keát thanh xieân X36 vaøo baûn maõ laø(choïn chieàu cao ñöôøng haøn soáng vaø meùp laø hhs = 4mm, hhm = 4mm).
lhs =+1=+1= 3.07cm,choïnlhs= 10cm
lhm =+1=+1 =1.88cm, choïn lhm =10cm
Chieàu daøi ñöôøng haøn soáng vaø meùp lieân keát thanh caùnh treân T9,10 vaøo baûn maõ laø (choïn chieàu cao ñöôøng haøn soáng vaø meùp laø hhs = 5mm, hhm = 5mm).
Löïc tính toaùn noái soáng vaø meùp theùp caùnh.
Ns =
= 12713(KG)
= 5445(KG)
=>lhs =+1=+1= 10.01cm,choïn lhs =58cm
=>lhm =+1=+1 = 4.32cm, choïn lhm=58cm
Nuùt 6 :
Chieàu daøi ñöôøng haøn soáng vaø meùp lieân keát thanh xieân X36 vaøo baûn maõ laø(choïn chieàu cao ñöôøng haøn soáng vaø meùp laø hhs = 4mm, hhm = 4mm).
lhs =+1=+1= 3.33cm,choïnlhs= 10cm
lhm =+1=+1 =2cm, choïn lhm=5cm
Chieàu daøi ñöôøng haøn soáng vaø meùp lieân keát thanh ñöùng Ñ23 vaøo baûn maõ laø(choïn chieàu cao ñöôøng haøn soáng vaø meùp laø hhs = 5mm, hhm = 5mm).
lhs =+1=+1= 1.7cm,choïnlhs=10cm
lhm =+1=+1 =1.01cm, choïn lhm= 10cm
Chieàu daøi ñöôøng haøn soáng vaø meùp lieân keát thanh xieân X37 vaøo baûn maõ laø(choïn chieàu cao ñöôøng haøn soáng vaø meùp laø hhs = 4mm, hhm = 4mm).
lhs =+1=+1= 4cm,choïnlhs= 10cm
lhm =+1=+1 =2.28 cm, choïn lhm=5cm
Chieàu daøi ñöôøng haøn soáng vaø meùp lieân keát thanh caùnh döôùi D2,3 vaøo baûn maõ laø (choïn chieàu cao ñöôøng haøn soáng vaø meùp laø hhs = 5mm, hhm = 5mm).
Löïc tính toaùn noái soáng vaø meùp theùp caùnh.
Ns =
= = 6309(KG)
Nm =
= = 5400(KG)
=>lhs =+1=+1=5cm,choïn lhs =39cm
=>lhm =+1=+1 =4 cm, choïn lhm=39cm
3.NUÙT NOÁI DAØN NGOAØI HIEÄN TRÖÔØNG :
Nuùt döôùi (nuùt 7):
Löïc tính toaùn noái caùnh
Nq =1.2ND3 =1.2 x 5.149 = 6.1788(T)
Choïn baûn gheùp coù tieát dieän 280x12. => vaäy dieän tích quy öôùc cuûa moái noái laø.
Aq = 2Agh+Abm = 28x1.2 + 2x1.2x9 = 55.2(cm2)
ÖÙng suaát quy öôùc treân tieát dieän noái quy öôùc laø
sq = = = 2055.33(KG/cm2)<R=2100(KG/cm2)
Löïc truyeàn qua baûn gheùp:
Ngh = sqx Agh =2055.33x28x1.2 = 69059.1(KG)
Toång chieàu daøi ñöôøng haøn lieân keát baûn gheùp vôùi theùp goùc caùnh döôùi D3 laø (choïn chieàu cao ñöôøng haøn hh = 6mm)
Slh = = +4 = 95.4(cm)
Löïc truyeàn qua baûn maõ.
Nbm = Nq - Ngh =113454 – 69059.1 = 44394.9(KG)
Nbm ³ 0.5Nq = 0.5x113454 = 56727(KG)
=> Nbm = 56727(KG)
Toång chieàu daøi ñöôøng haøn lieân keát theùp goùc caùnh döôùi D3 vaøo baûn maõ laø (choïn chieàu cao ñöôøng haøn hh =6mm).
Slh = = +4 = 79(cm)
Löïc truyeàn qua hai baûn noái.
Nbn = Nbmcosa = 56727 x cos0 = 56727(KG)
Ñöôøng haøn lieân keát baûn noái vaøo baûn maõ laø(choïn hh =1mm).
lh = = +1 = 23.5(cm)
Choïn baûn noái coù tieát dieän 240 x 200 x10
Kieåm tra cöôøng ñoä cuûa baûn noái (baûn noái coù 2 loã bulong f20)
s = = = 1418.2(KG/cm2)< R =2100(KG/cm2)
Do noäi löïc trong thanh ñöùng Ñ2 baèng khoâng neân chieàu daøi ñöôøng haøn lieân keát thanh ñöùng Ñ2 vaøo baûn maõ choïn theo caáu taïohhs=4mm, hhm=4mm, lhs=5cm,
lhm=5cm.
Nuùt treân (nuùt 8) :
Löïc tính toaùn noái caùnh
Nq =1.2NT11 =1.2 x 30.29 = 36.348 (T)
Choïn baûn gheùp coù tieát dieän 280x12. => vaäy dieän tích quy öôùc cuûa moái noái laø.
Aq = 2Agh+Abm = 28x1.2 + 2x1.2x16 = 72(cm2)
ÖÙng suaát quy öôùc treân tieát dieän noái quy öôùc laø
sq = = = 1656.933(KG/cm2) <R=2100(KG/cm2)
Löïc truyeàn qua baûn gheùp:
Ngh = sqx Agh = 1656.933x28x1.2 = 55672.95(KG)
Toång chieàu daøi ñöôøng haøn lieân keát baûn gheùp vôùi theùp goùc caùnh treân T5 laø (choïn chieàu cao ñöôøng haøn hh = 6mm)
Slh = = +4 = 77.6(cm)
Löïc truyeàn qua baûn maõ.
Nbm =Nq-Ngh=119299.2–55672.95=63626.25(KG) >0.5Nq =59649.6(KG)
=> Nbm = 56727(KG)
Toång chieàu daøi ñöôøng haøn lieân keát theùp goùc caùnh treân T11 vaøo baûn maõ laø (choïn chieàu cao ñöôøng haøn hh =6mm).
Slh = = +4 = 88.2(cm)
Löïc truyeàn qua hai baûn noái.
Nbn = Nbmcosa - 1.2NX5cosb
= 63626.25 x cos5.71 – 1.2x8732 x cos51 = 56711.2(KG)
Ñöôøng haøn lieân keát baûn noái vaøo baûn maõ laø(choïn hh =1mm).
lh = = +1 = 23.5(cm)
Choïn baûn noái coù tieát dieän 240 x 200 x10
Kieåm tra cöôøng ñoä cuûa baûn noái (baûn noái coù 2 loã bulong f20)
s = = = 1417.8(KG/cm2)< R =2100(KG/cm2)
Ñöôøng haøn lieân keát thanh xieân X5 vaøo baûn maõ laø (choïn chieàu cao ñöôøng haøn soáng vaø meùp laø hhs = 4mm, hhm = 4mm).
lhs =+1=+1= 7.1cm,choïn lhs =8cm
lhm =+1=+1 = 3.6cm, choïn lhm=6cm
AÙP noäi löïc trong thanh ñöùng Ñ24 baèng khoâng neân chieàu daøi ñöôøng haøn lieân keát thanh ñöùng Ñ24 vaøo baûn maõ choïn theo caáu taïohhs=4mm, hhm=4mm, lhs=4cm, lhm=4cm.
Các file đính kèm theo tài liệu này:
- THUYET MINH HOAN THANH.doc
- BAN VE.dwg