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  1. #1

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  2. #2
    monachus's Avatar
    May 2001
    :
    2,934
    Blog Entries
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    St Francis of Assisi

  3. #3
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  4. #4

  5. #5
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    NEES ....BUILDING IT BETTER!!! :yikes:
    http://www.green-e.gr/m/listing/view...ismiko-systhma
    Last edited by seismic; 17-02-2014 at 21:25:25.

  6. #6
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  7. #7
    2,45 2,50 5 10 44 cm.... 20 sec 40 44 cm
    https://www.youtube.com/watch?v=RoM5pEy7n9Q
    1) , , 40 20 sec. : =40/20=2Hz (/sec) =1/=0,50 sec.
    2) 11 cm , , : =2.r.=138,16cm/sec.
    3) , , 22cm, . /4. : a=/(/4)=4/=4*138,16/0,50=1105,28cm/sec2=1105,28/981= 1,13g
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    https://www.youtube.com/watch?v=RoM5pEy7n9Q
    1) , , 40 20 sec. : =40/20=2Hz (/sec) =1/=0,50 sec.
    2) 11 cm x 7,14 , , : =2.r.= 987 cm/sec.
    3) , , . /4. : a=/(/4)=4/=4*987/0,50=7896cm/sec2=7896/981= 8g
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    http://en.wikipedia.org/wiki/Peak_ground_acceleration

    Instrumental Intensity, Acceleration (g), Velocity (cm/s), Perceived Shaking, Potential Damage
    I ........................... < 0.0017 ............... < 0.1 ....... Not felt ............. None
    II-III .................. 0.0017 - 0.014 .... 0.1 - 1.1 .......... Weak .............. None
    IV .................... 0.014 - 0.039 ...... 1.1 - 3.4 ......... Light .............. None
    V ..................... 0.039 - 0.092 ........ 3.4 - 8.1......... Moderate ........... Very light
    VI ....................... 0.092 - 0.18 ........ 8.1 16 ......... Strong ........... Light
    VII ................. ...... 0.18 - 0.34 .......... 16 31......... Very strong ........ Moderate
    VIII ...................... 0.34 - 0.65 ......... 31 60 ......... Severe ......... Moderate to heavy
    IX ..................... ... 0.65 - 1.24 .......... 60 116 ....... Violent ........... Heavy
    X+ ....................... > 1.24 ........... > 116............... Extreme............. Very heavy

  8. #8
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    1,200 kN , .
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    1200kN ( 0,30 m x 0,40 m x 3,00m ) = 10 MPa

    ( 1,5 ), C 30 . 30MPa/1.5=20 MPa

    50% .

    ( ) 900,62kN 0.1296 m

    1,200 kN 1,179.33kN 0.0864 m

    H 1,179.33 - 900.62 = 272.71 kN

    H 278.71/900.92=30.9%




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    117
    http://www.emichanikos.gr/showthread...BD%CF%84%CE%B1
    Last edited by seismic; 12-04-2014 at 20:57:31.

  9. #9
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  10. #10


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    https://www.youtube.com/watch?v=sZkCKY0EypM

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    . Khalid M. Mosalam, PhD, PE Professor of Structural Engineering, Mechanics and Materials Civil and Environmental Engineering University of California Berkeley, .

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    Last edited by seismic; 05-07-2014 at 14:47:42.

  1. odrys
    : 13
    : 14-09-2009, 09:54:07
  2. ;
    exs - .
    : 33
    : 23-08-2009, 19:48:30
  3. psirro .
    : 7
    : 16-06-2009, 10:29:39
  4. infokast - - LPG
    : 63
    : 23-03-2008, 00:40:35
  5. & (... ;)
    A.S.Diamond , monachos.gr
    : 37
    : 12-01-2006, 14:53:16

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