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0°ÇÀÇ Èı⺸±âºê·¹À̽º ÇÁ·¹ÀÓ(Braced Frames)ÀÇ ¼³°è ¹× ±¸Á¶Çؼ®¿¡ ´ëÇØ ±â¼úÇÑ Âü°íÀÚ·áÀÔ´Ï´Ù.
Àüü 19 page Áß 14 page±îÁö ¹Ì¸®º¸±â°¡ °¡´ÉÇÕ´Ï´Ù.
1Àå ¼³°è °³¿ä
1. ¼³°è±ÔÁØ
2. ±¸Á¶Àç·á
3. ¼³°èÇÏÁß
4. ±¸Á¶Á¦ÇÑ
2Àå °ÇÃ๰ °³¿ä
3Àå Dead Load and Live Load on Frame
4Àå ÁöÁøÇÏÁß »êÁ¤
5Àå Seismic Loading on Frame
6Àå dzÇÏÁß »êÁ¤
7Àå Wind Loading on Frame
8Àå Analysis(Program : MIDAS 5.6.0)
braced framesÀÇ ¼³°è ¹× ±¸Á¶Çؼ® [xÃþ±Ô¸ð¿¡ °¡»õ¸¦ ¼³Ä¡ÇÑ °æ¿ì] ¢º±¸Á¶Çؼ®xxx-xxxp ¢º±¸Á¶Çؼ®211p ¢º ±¸Á¶Çؼ®1 ¼³°è °³¿ä
(1) ¼³°è±ÔÁØ : ´ëÇÑ°ÇÃàÇÐȸ °±¸Á¶ÇÑ°è»óÅ ¼³°è±âÁØ(aik-lsd97, ±ØÇÑ°µµ¼³°è¹ý, 1997)
(2) ±¸Á¶Àç·á
¨ç girder : ss400 ¨è column : sm490 ¨é brace : ss400 pipe section
(3) ¼³°èÇÏÁß : °ÇÃ๰ ÇÏÁß±âÁØ ¹× Çؼ³ 2
¨ç dead load : 0.5 `t/m^2
¹Ù´ÚÇÏÁß(¹Ù´ÚÀÚÁß, õÁ¤¼³ºñ, ĸ·À̺®) ¹× ¿Üº®ÇÏÁß Æ÷ÇÔ
¨è live load : 0.4 `t/m^2
¨é wind load, earthquake : ¼¿ïÁö¿ª, ÁöÁø±¸¿ª¥°
¨êÃþº° ¹Ù´Ú Áß·® : 364.5`t ```` 0.5`t/m^2`¡¿`729`t/m^2
¨ë °ÇÃ๰ ÃÑ Áß·® : 3,645`t ```` 364.5`t`¡¿`10`Ãþ
(4) ±¸Á¶Á¦ÇÑ
¨ç roof drift index : 1/300
1 over 300 `times` h ```` 1 over 300 `times` 40m ```` 0.13m ``>`` roof~drift
¨èÃþ°£º¯À§(delta sub x
)´Â ÀÓÀÇÀÇÃþ¿¡¼ »ý±â´Â ¼öÆòº¯À§·®ÀÇ Â÷ÀÌ·Î ±×ÃþÀÇ 0.015¹è¸¦ ÃÊ°úÇÒ ¼ö ¾ø´Ù.
delta sub x ```` r `delta sub xe delta sub x : x ÃþÀÇ ¼öÆòº¯À§·® r : ¹ÝÀÀ¼öÁ¤°è¼ö delta sub xe : ź¼ºÇؼ®¿¡ µû¶ó ±¸ÇÑ x ÃþÀÇ ¼öÆòº¯À§·®
( delta sub x ```` 3.5 `times ` delta sub 1.5e ) ``<`` (Ãþ°í `times` 0.015 ```` 4m `times` 0.015 ```` 0.06m )
(5) frame analysis : midas 5.6.0
°ÇÃ๰ °³¿ä dead load and live load on frame
(1) ÀÛ¿ë¸éÀû : 9 m ``times`` 4.5m ```` 40.5 m ^ 2
(2) ÀÛ¿ëÇÏÁß
dead load : { 40.5m ^2 ``times`` 0.5 t/ m ^2} over { 9m } ```` 2.25 t/m
live load : { 40.5m ^2 ``times`` 0.4 t/ m ^2} over { 9m } ```` 1.80 t/m
omega sub d ```` 2.25 t/m
omega sub l ```` 1.80 t/m
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