YOSHINAKA SUSUMU

写真a

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Title

Associate Professor

Laboratory location

Sugimoto Campus

Degree 【 display / non-display

  • The University of Tokyo -  Dr.Eng.

Research Areas 【 display / non-display

Building structures/Materials

Awards & Honors 【 display / non-display

  • Encouragement Prize of AIJ

    2008  

Current Career 【 display / non-display

  • Osaka City University   Graduate School of Engineering   Urban Engineering Course   Associate Professor  

Career 【 display / non-display

  • 2008
     
     

    Osaka City University  

  • 2005
    -
    2008

    Institute of Industrial Science, University of Tokyo  

  • 1995
    -
    2004

    KAJIMA CORPORATION  

Graduate School 【 display / non-display

  •  
    -
    1995

    The University of Tokyo  Graduate School, Division of Engineering 

Graduating School 【 display / non-display

  •  
    -
    1993

    Waseda University   Faculty of Science and Engineering  

 

Published Papers 【 display / non-display

  • 鉛直荷重下単層ラチスドームの静的および動的応答における弾塑性挙動の比較

    谷口 与史也, 松井 知也, 吉中 進

    日本建築学会 日本建築学会構造系論文集  83 ( 747 ) 709 - 716 2018  [Refereed]

     View Summary

    &nbsp;This paper focuses on the elasto - plastic behavior of static and dynamic responses for single layer lattice domes, which are subjected to vertical loads. The purpose is to make clear the relationship between seismic responses and static responses such as static absorbed energy properties after and before yielding, and to estimate bearable seismic levels with the information of static elasto - plastic behaviors. The two responses compared are shown in Fig. 14. The dimensions of both figures are equal in multiplying or dividing by circular frequency.<br>&nbsp;The single layer lattice domes are shown in Fig. 1. Half open angle of members and self-weight are adopted as numerical parameters as shown in Table 3. The static elasto - plastic behaviors are shown in Fig. 3. In the figure, The solid lines are the equivalent velocity of strain energies, the dotted and dashed lines are that of static absorbed energies and the dashed lines are that of potential energy performed by the product of self-weight and vertical displacements. These relationships obtained are simplified into bi-linear relationships as shown in Fig. 4 to obtain the static elasto - plastic property coefficient j. The obtained results of coefficient j are shown in Table 4.<br>&nbsp;Secondary, the dynamic elasto - plastic behaviors are estimated against 4 seismic waves of Fig. 5. The dynamic behavior obtained is the relationships between maximum ground acceleration PGA and strain energies. The obtained results are shown in Figs. 6-9 and simplified into bi-linear relationships to obtain the dynamic elasto - plastic property coefficient q, as shown in Fig. 14(b). The obtained results are shown in Table 5.<br>&nbsp;In comparing the two property coefficients j and q as shown in Fig. 10, BCJ wave is relatively large about the dynamic effect. On the contrary, El Centro wave is the smallest among the four waves. This reason is made clear in considering the input acceleration power history as shown in Fig. 11. BCJ wave of Fig. 11(a) has many peaks during the motions, but El Centro wave of Fig. 11(b) has a few peaks during the first half of motions. These strong characteristics of seismic waves can be considered with the input energy spectrum V<sub>E</sub> as shown in Fig. 12. Then the ratios q/j are compared with the ratios V<sub>E</sub>/S<sub>V</sub>. The ratio q/j decreases as the ratio V<sub>E</sub>/S<sub>V</sub> increases.<br>&nbsp;The Eqn. 5 is the regression formula obtained by the data distributed in the quadrangle of Fig. 13, expressed as dotted and dashed line in the figure. The PGA corresponding to the limit state deformations can be estimated with Eqns. 4 and 5. The predicted results are shown in Fig. 15 and Table 6.<br>&nbsp;The following conclusions are obtained in the present study: (1) The relationship of maximum earthquake input acceleration PGA and strain energies of domes shows bi-linear type such as the relationships of static absorbed energies and displacements. (2) In comparing the preceding two relationships as for dynamic and static responses, the change ratios among elastic and plastic ranges are dependent upon the seismic waves. The distribution tendencies are able to be explained with the information of input acceleration power history of seismic waves. (3) The ratios of dynamic property q against static property j becomes smaller, as the ratios of energy spectrum V<sub>E</sub> against velocity response spectrum S<sub>V</sub> becomes larger. (4) The present estimation method of PGA corresponding to limit state deformations shows a relatively good accuracy.

    DOI CiNii

  • Impact test of an arch model using TMDs with initial displacement

    Susumu YOSHINAKA, Yoshiya TANIGUCHI

    Proceedings of the IASS Annual Symposium 2017  ( ID 9205 ) 1 - 10 2017.09  [Refereed]

     View Summary

    TMDs (Tuned Mass Dampers) show superior control performance for harmonic responses, but have limited capacity for transient responses. To control transient responses effectively, we propose TMDs with initial displacement. In our previous study, we formulated an equation for initial conditions to release initial TMD displacement. This equation is based on the principle that, under a specific structural initial condition, by giving specific initial displacement to a TMD, the first modal response with low modal damping is eliminated while the the second modal response with high modal damping is only oscillated on a two-degree-of-freedom system. This paper describes a vibration test using an arch model under impulse loading to verify the control performance of the proposed method experimentally. From test results, we can see that the TMD model showed high control performance. On the other hand, the control performance is very sensitive to the length and the release moment of the TMD’s initial displacement.

  • Impact test of an arch model using TMDs with initial displacement

    Susumu YOSHINAKA, Yoshiya TANIGUCHI

    Proceedings of the IASS Annual Symposium 2017  ( ID 9205 ) 1 - 10 2017.09  [Refereed]

     View Summary

    TMDs (Tuned Mass Dampers) show superior control performance for harmonic responses, but have limited capacity for transient responses. To control transient responses effectively, we propose TMDs with initial displacement. In our previous study, we formulated an equation for initial conditions to release initial TMD displacement. This equation is based on the principle that, under a specific structural initial condition, by giving specific initial displacement to a TMD, the first modal response with low modal damping is eliminated while the the second modal response with high modal damping is only oscillated on a two-degree-of-freedom system. This paper describes a vibration test using an arch model under impulse loading to verify the control performance of the proposed method experimentally. From test results, we can see that the TMD model showed high control performance. On the other hand, the control performance is very sensitive to the length and the release moment of the TMD’s initial displacement.

  • Impact test of an arch model using TMDs with initial displacement

    Susumu YOSHINAKA, Yoshiya TANIGUCHI

    Proceedings of the IASS Annual Symposium 2017  ( ID 9205 ) 1 - 10 2017.09  [Refereed]

     View Summary

    TMDs (Tuned Mass Dampers) show superior control performance for harmonic responses, but have limited capacity for transient responses. To control transient responses effectively, we propose TMDs with initial displacement. In our previous study, we formulated an equation for initial conditions to release initial TMD displacement. This equation is based on the principle that, under a specific structural initial condition, by giving specific initial displacement to a TMD, the first modal response with low modal damping is eliminated while the the second modal response with high modal damping is only oscillated on a two-degree-of-freedom system. This paper describes a vibration test using an arch model under impulse loading to verify the control performance of the proposed method experimentally. From test results, we can see that the TMD model showed high control performance. On the other hand, the control performance is very sensitive to the length and the release moment of the TMD’s initial displacement.

  • Impact test of an arch model using TMDs with initial displacement

    Susumu YOSHINAKA, Yoshiya TANIGUCHI

    Proceedings of the IASS Annual Symposium 2017  ( ID 9205 ) 1 - 10 2017.09  [Refereed]

     View Summary

    TMDs (Tuned Mass Dampers) show superior control performance for harmonic responses, but have limited capacity for transient responses. To control transient responses effectively, we propose TMDs with initial displacement. In our previous study, we formulated an equation for initial conditions to release initial TMD displacement. This equation is based on the principle that, under a specific structural initial condition, by giving specific initial displacement to a TMD, the first modal response with low modal damping is eliminated while the the second modal response with high modal damping is only oscillated on a two-degree-of-freedom system. This paper describes a vibration test using an arch model under impulse loading to verify the control performance of the proposed method experimentally. From test results, we can see that the TMD model showed high control performance. On the other hand, the control performance is very sensitive to the length and the release moment of the TMD’s initial displacement.

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Books etc 【 display / non-display

  • いのちを守る都市づくり [アクション編]みんなで備える広域複合災害

    大阪市立大学都市防災研究グループ (Part: Single Work )

    大阪公立大学共同出版会  2013.03

  • いのちを守る都市づくり [アクション編]みんなで備える広域複合災害

    大阪市立大学都市防災研究グループ (Part: Single Work )

    大阪公立大学共同出版会  2013.03

  • いのちを守る都市づくり [アクション編]みんなで備える広域複合災害

    大阪市立大学都市防災研究グループ (Part: Single Work )

    大阪公立大学共同出版会  2013.03

  • いのちを守る都市づくり [課題編]東日本大震災から見えてきたもの

    大阪市立大学都市防災研究グループ (Part: Single Work )

    大阪公立大学共同出版会  2012.03

  • いのちを守る都市づくり [課題編]東日本大震災から見えてきたもの

    大阪市立大学都市防災研究グループ (Part: Single Work )

    大阪公立大学共同出版会  2012.03

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Review Papers (Misc) 【 display / non-display

  • 21世紀の空間構造の現状と展望 第8回IASS2016東京シンポジウム報告(8)

    吉中進,田村淳一,田川浩之,細見亮太,木村俊明

    鉄構技術  31 ( 358 ) 23 - 27 2018.03  [Refereed]  [Invited]

  • 21世紀の空間構造の現状と展望 第7回IASS2016東京シンポジウム報告(7)

    山川誠,西田明美,箕輪健一,吉中進

    鉄構技術  31 ( 357 ) 16 - 20 2018.02  [Refereed]  [Invited]

  • 21世紀の空間構造の現状と展望 第5回IASS2016東京シンポジウム報告(5)

    吉中進,張景耀,坂口裕美,豊島裕樹

    鉄構技術  30 ( 355 ) 21 - 26 2017.12  [Refereed]  [Invited]

  • TMDを用いた空間構造の地震応答制御

    日本建築学会    40 - 57 2015.11  [Refereed]  [Invited]

  • TMDを用いた空間構造の地震応答制御

    吉中 進

    日本建築学会    40 - 57 2015.11  [Refereed]  [Invited]

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Conference Activities & Talks 【 display / non-display

  • Prediction Method of Bearable PGA for Single Layer Lattice Domes under Vertical Loading

    Yoshiya TANIGUCHI, Tomoya MATSUI, Susumu YOSHINAKA

    the 12th Asian Pacific Conference on Shell & Spatial Structures  2018.10 

  • Impact test of an arch model using TMDs with initial displacement

    Susumu YOSHINAKA, Yoshiya TANIGUCHI

    IASS Annual Symposium 2017  (ドイツ ハンブルグ)  2017.09 

  • Impact test of an arch model using TMDs with initial displacement

    Susumu YOSHINAKA, Yoshiya TANIGUCHI

    IASS Annual Symposium 2017  (ドイツ ハンブルグ)  2017.09 

  • Impact test of an arch model using TMDs with initial displacement

    Susumu YOSHINAKA, Yoshiya TANIGUCHI

    IASS Annual Symposium 2017  (ドイツ ハンブルグ)  2017.09 

  • Impact test of an arch model using TMDs with initial displacement

    Susumu YOSHINAKA, Yoshiya TANIGUCHI

    IASS Annual Symposium 2017  (ドイツ ハンブルグ)  2017.09 

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Other educational activity and Special note 【 display / non-display

  • Improvement of educational methods

    (2018)

  • Class teacher

    (2018)

  • Contribution to FD activities

    (2018)

  • Improvement of educational methods

    (2017)

  • Contribution to FD activities

    (2017)

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Educational activity record 【 display / non-display

  • Academic year : 2013

     View Details

    Number of instructed the graduation thesis
    5
    Number of graduation thesis reviews
    5
    Number of instructed the Master course
    5
    Number of instructed the Doctoral course
    1
    Number of master's thesis reviews (chief)
    2
    Number of master's thesis reviews (vice-chief)
    5
    Number of doctoral thesis reviews (chief)
    0
    Number of doctoral thesis reviews (vice-chief)
    0
  • Academic year : 2012

     View Details

    Number of instructed the graduation thesis
    0
    Number of graduation thesis reviews
    0
    Number of instructed the Master course
    7
    Number of instructed the Doctoral course
    1
    Number of master's thesis reviews (chief)
    1
    Number of master's thesis reviews (vice-chief)
    3
    Number of doctoral thesis reviews (chief)
    0
    Number of doctoral thesis reviews (vice-chief)
    0
  • Academic year : 2011

     View Details

    Number of instructed the graduation thesis
    6
    Number of graduation thesis reviews
    4
    Number of instructed the Master course
    4
    Number of instructed the Doctoral course
    0
    Number of master's thesis reviews (chief)
    2
    Number of master's thesis reviews (vice-chief)
    2
    Number of doctoral thesis reviews (chief)
    0
    Number of doctoral thesis reviews (vice-chief)
    0
 

Foreigner acceptance 【 display / non-display

  • Academic year : 2018

     View Details

    Number of foreigners accepted
    1
    Number of International Students
    0

    CHINA

  • Academic year : 2017

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    Number of foreigners accepted
    1

    China