|
|
|
|
|
|
|
|
|
|
|
|
|
호칭/구분
|
평균
반경
|
I
(㎠/㎝)
|
좌굴응력
(㎏/㎠)
|
Pc/1.5
|
Pw지하수압
(㎏/㎠)
|
좌굴에의한
안전판단
|
|
Po
|
Pc
|
2.0M
|
1.5M
|
1.0M
|
2.0M
|
1.5M
|
1.0M
|
|
200
|
214
|
0.132
|
3.07
|
1.99
|
1.33
|
0.2
|
0.15
|
0.1
|
O
|
O
|
O
|
|
250
|
265.5
|
0.171
|
2.10
|
1.36
|
0.91
|
0.2
|
0.15
|
0.1
|
O
|
O
|
O
|
|
300
|
319
|
0.299
|
2.10
|
1.36
|
0.91
|
0.2
|
0.15
|
0.1
|
O
|
O
|
O
|
|
250
|
372
|
0.479
|
2.12
|
1.37
|
0.91
|
0.2
|
0.15
|
0.1
|
O
|
O
|
O
|
|
400
|
425
|
0.709
|
2.11
|
1.37
|
0.91
|
0.2
|
0.15
|
0.1
|
O
|
O
|
O
|
|
450
|
479
|
1.017
|
2.10
|
1.36
|
0.91
|
0.2
|
0.15
|
0.1
|
O
|
O
|
O
|
|
500
|
531.5
|
1.386
|
2.10
|
1.36
|
0.91
|
0.2
|
0.15
|
0.1
|
O
|
O
|
O
|
|
600
|
639
|
2.418
|
2.11
|
1.37
|
0.91
|
0.2
|
0.15
|
0.1
|
O
|
O
|
O
|
|
700
|
744
|
3.835
|
2.11
|
1.37
|
0.91
|
0.2
|
0.15
|
0.1
|
O
|
O
|
O
|
|
800
|
850
|
5.719
|
2.12
|
1.37
|
0.91
|
0.2
|
0.15
|
0.1
|
O
|
O
|
O
|
|
900
|
956.5
|
8.342
|
2.17
|
1.41
|
0.91
|
0.2
|
0.15
|
0.1
|
O
|
O
|
O
|
|
1000
|
1,062
|
1.154
|
2.11
|
1.37
|
0.91
|
0.2
|
0.15
|
0.1
|
O
|
O
|
O
|
|
1200
|
1,275
|
19.256
|
2.11
|
1.37
|
0.91
|
0.2
|
0.15
|
0.1
|
O
|
O
|
O
|
|
1500
|
1,595
|
37.71
|
2.12
|
1.37
|
0.91
|
0.2
|
0.15
|
0.1
|
O
|
O
|
O
|
|
|
|
|
|
|
|
|
|
|
|
|
