Металл - Балочная клетка 2012
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Значения коэффициента β
Таблица 16 (т. 1.5.3 [1] стр. 33)
Балки |
Условия работы сжатого пояса |
β |
|
|
|
Крановых путей |
Крановые рейки не приварены |
2,0 |
|
Крановые рейки приварены |
|
|
|
|
Другие |
При непрерывном опирании плит настила |
|
|
В других случаях |
0,8 |
|
|
|
Примечание. Для отсеков балок крановых путей, где сосредоточенное нагружение приложено к растянутому поясу, коэффициент необходимо принимать 0,8
70
Риски для размещения отверстий в двутавровых балках по ГОСТ 8239-72*
Таблица 17
|
№ |
Полка |
|
|
Стенка |
|
||
|
проф |
|
|
|
|
|
|
|
|
е, |
|
, |
, |
|
, |
, |
|
|
иля |
мм |
мм |
|
мм |
|
мм |
мм |
|
|
|
|
|
|
|
|
|
|
10 |
32 |
9,0 |
|
70 |
|
30 |
11,0 |
|
12 |
36 |
11,0 |
|
88 |
|
36 |
13,0 |
|
14 |
40 |
11,0 |
|
107 |
|
40 |
13,0 |
|
16 |
45 |
13,0 |
|
125 |
|
40 |
15,0 |
|
18 |
50 |
15,0 |
|
143 |
|
50 |
17,0 |
|
18а |
55 |
17,0 |
|
142 |
|
50 |
17,0 |
|
20 |
55 |
17,0 |
|
161 |
|
50 |
17,0 |
|
20а |
60 |
19,0 |
|
160 |
|
50 |
17,0 |
|
22 |
60 |
19,0 |
|
178 |
|
60 |
21,0 |
|
22а |
65 |
21,0 |
|
178 |
|
60 |
21,0 |
|
24 |
60 |
19,0 |
|
196 |
|
60 |
21,0 |
|
24а |
70 |
21,0 |
|
196 |
|
60 |
21,0 |
|
27 |
70 |
21,0 |
|
224 |
|
60 |
21,0 |
|
27а |
70 |
23,0 |
|
222 |
|
60 |
23,0 |
|
30 |
70 |
23,0 |
|
251 |
|
65 |
23,0 |
|
30а |
80 |
23,0 |
|
248 |
|
65 |
23,0 |
|
33 |
80 |
23,0 |
|
277 |
|
65 |
23,0 |
|
36 |
80 |
23,0 |
|
302 |
|
70 |
23,0 |
|
40 |
80 |
23,0 |
|
339 |
|
70 |
23,0 |
|
45 |
90 |
23,0 |
|
384 |
|
70 |
23,0 |
|
50 |
100 |
25,0 |
|
430 |
|
80 |
25,0 |
|
55 |
100 |
25,0 |
|
475 |
|
80 |
25,0 |
|
60 |
110 |
25,0 |
|
518 |
|
90 |
25,0 |
71
Риски для размещения отверстий в швеллерах по ГОСТ 8240-72*.
Таблица 18
|
№ |
Полка |
|
|
Стенка |
|
||
|
профил |
|
|
|
|
|
|
|
|
е, |
|
, |
, |
|
, |
, |
|
|
я |
мм |
мм |
|
мм |
|
мм |
мм |
|
|
|
|
|
|
|
|
|
|
10 |
32 |
9,0 |
|
70 |
|
30 |
11,0 |
|
12 |
36 |
11,0 |
|
88 |
|
36 |
13,0 |
|
14 |
40 |
11,0 |
|
107 |
|
40 |
13,0 |
|
16 |
45 |
13,0 |
|
125 |
|
40 |
15,0 |
|
18 |
50 |
15,0 |
|
143 |
|
50 |
17,0 |
|
18а |
55 |
17,0 |
|
142 |
|
50 |
17,0 |
|
20 |
55 |
17,0 |
|
161 |
|
50 |
17,0 |
|
20а |
60 |
19,0 |
|
160 |
|
50 |
17,0 |
|
22 |
60 |
19,0 |
|
178 |
|
60 |
21,0 |
|
22а |
65 |
21,0 |
|
178 |
|
60 |
21,0 |
|
24 |
60 |
19,0 |
|
196 |
|
60 |
21,0 |
|
24а |
70 |
21,0 |
|
196 |
|
60 |
21,0 |
|
27 |
70 |
21,0 |
|
224 |
|
60 |
21,0 |
|
27а |
70 |
23,0 |
|
222 |
|
60 |
23,0 |
|
30 |
70 |
23,0 |
|
251 |
|
65 |
23,0 |
|
30а |
80 |
23,0 |
|
248 |
|
65 |
23,0 |
|
33 |
80 |
23,0 |
|
277 |
|
65 |
23,0 |
|
36 |
80 |
23,0 |
|
302 |
|
70 |
23,0 |
|
40 |
80 |
23,0 |
|
339 |
|
70 |
23,0 |
|
45 |
90 |
23,0 |
|
384 |
|
70 |
23,0 |
|
50 |
100 |
25,0 |
|
430 |
|
80 |
25,0 |
|
55 |
100 |
25,0 |
|
475 |
|
80 |
25,0 |
|
60 |
110 |
25,0 |
|
518 |
|
90 |
25,0 |
72
Підписано до друку Формат 60х84/8.
Тираж _____ прим.
Типографія ОДАБА
73