•\-2.5 –L‰Y•W€»‚Ì“yŽ¿ŽŽŒ±Œ‹‰Ê
€–Ú
‹L†
’PˆÊ
ŽŽŒ±’l
ӊd
G
S
g/cm
3
2.655
ő嗱Œa
-
mm
0.850
50%—±Œa
D
50
mm
0.170
30%—±Œa
D
30
mm
0.151
‹Ï“™ŒW”
U
C
-
1.4
ő劣‘‡–§“x
ƒÏ
d max
g/cm
3
1.664
ŬУ‘‡–§“x
ƒÏ
d min
g/cm
3
1.364
“à•”–€ŽCŠp(D
r
=60%)
ƒÓ
‹
39.9
*
“à•”–€ŽCŠp(D
r
=80%)
ƒÓ
‹
42.1
*
”S’…—Íc ‚ð c = 0(kN/m
2
)‚Æ‚µ‚Ä‹‚ß‚½’l.