2005 論文集

1. 独立上屋の風荷重　その１　外装材設計用風力係数

永井俊太郎，植松　康，セオドル・スタトポラス，飯泉江梨

日本風工学会誌 , 第 30 巻第 2 号 ( 通号第 103 号 ), pp.217-218, 2005.4

Wind loads on free-standing canopy roofs: Part 1 Wind force coefficients for the design of cladding and its immediately supporting structures

Shuntaro NAGAI, Yasushi UEMATSU, Theodore STOTHOPOULOS, Eri IIZUMI

Journal of Wind Engineers, JAWE, Vol.30, No.2(No.103), pp.217-218, 2005.4

2. 独立上屋の風荷重　その２　構造骨組設計用風力係数

飯泉江梨，植松　康，セオドル・スタトポラス

日本風工学会誌 , 第 30 巻第 2 号 ( 通号第 103 号 ), pp.219-220, 2005.4

Wind loads on free-standing canopy roofs: Part 2 Wind force coefficients for the main wind-force resisting systems

Eri IIZUMI, Yasushi UEMATSU, Theodore STOTHOPOULOS

Journal of Wind Engineers, JAWE, Vol.30, No.2(No.103), ,pp.219-220, 2005.4

3. 独立上屋の風荷重　その３　屋根下遮蔽物の影響

植松　康，セオドル・スタトポラス，飯泉江梨

日本風工学会誌 , 第 30 巻第 2 号 ( 通号第 103 号 ), pp.221-222, 2005.4

Wind loads on free-standing canopy roofs: Part 3 Effect of obstruction under the roof on the wind force coefficients

Yasushi UEMATSU, Theodore STOTHOPOULOS, Eri IIZUMI

Journal of Wind Engineers, JAWE, Vol.30, No.2(No.103) , pp.221-222, 2005.4

4. Wind loads on a steel greenhouse with a wing-like cross section

Y. Uematsu, T Orimo, S. Watanabe, S. Kitamura, M. Iwaya

The Fourth European & African Conference on Wind Engineering J. Naprstek & C.Fischer(eds); ITAM AS CR, Prague, July 11-15, 2005, Paper #101, pp.1-10, 2005.7

ABSTRACT: The authors have proposed a new type of greenhouse with a cross section similar to a wing. Such a cross section reduces the wind loads significantly compared with conventional shapes and allows a long-span structure. Simultaneous pressure measurements were made with a scale model in a simulated turbulent boundary layer. Focus was on the external pressures. First, the effects of wind speed (Reynolds number) and surface roughness of the model on the pressure distribution are investigated; several kinds of commercial sand paper were used for roughening the surface. Then, the peak pressure coefficients for the design of cladding are discussed. Finally, the design wind load for the main wind-force resisting systems is discussed, using three kinds of evaluation methods, i.e. the time-history analysis, the LRC method and a gust effect factor approach. The results indicate that the gust effect factor approach provides reasonable load estimation for winds roughly normal to the ridgeline, while it results in a wind pressure distribution different from those estimated by the other two methods for oblique winds. The LRC method generally provides results similar to those of the time-history analysis. However, the pressure distribution depends on the load effect under consideration. The peak factor is also dependent on the load effect; it is generally larger than 3.5. This feature is related to the non-normality of wind pressure fluctuations acting on the surface.

5. Wind force coefficients for designing free-standing canopy roofs

Y. Uematsu, E. Iizumi, T. Stathopoulos

The Fourth European & African Conference on Wind Engineering J. Naprstek & C.Fischer(eds); ITAM AS CR, Prague, July 11-15, 2005, Paper #102, pp.1-14, 2005.7

ABSTRACT: Wind loads on free-standing canopy roof s have been studied experimentally. Three types of roof geometries, i.e. gable, troughed and mono-sloped roofs were tested. Wind pressures were measured simultaneously at many points both on the top and bottom surfaces of the roof model for various wind directions. Based on the results for the most critical positive and negative peak pressure coefficients irrespective of wind direction, the wind force coefficients for the design of cladding and its immediately supporting structures are proposed. Correlation between the wind force and moment coefficients is investigated, and appropriate wind force coefficients for the design of main wind force resisting systems are proposed. Axial forces in the columns supporting the roof are regarded as the most important load effect. Two loading patterns causing maximum tension and compression of columns are considered.

6. 北海道の台風 18 号被害

植松　康

建築防災，通巻 330 号， pp.11-14, 2005.7

7. 超音波試験による鋼材表面の粗度評価に関する基礎的研究

−溝形状の異なる連続並列溝の評価とカプラ部の粗度評価−

川田純也 , 山田大彦 , 藤本勝成

日本建築学会大会学術講演梗概集 ( 近畿 ), 材料施工 , pp.1233-1234, 2005.9

Roughness evaluation technic for steel member's surface by frequency ultrasonic pulse testing

- Measurement of continuously parallel artificial grooves of different grooves and roughness of coupler parts -

KAWADA Junya, YAMADA Motohiko, FUJIMOTO Katsusige

Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan , Materials & Construction pp.1233-1234, 2005.9

8. 台風 0418 号による北海道の強風被害

桂　重樹 , 植松　康，桜井修次，城　　攻

日本建築学会大会学術講演梗概集 ( 近畿 ), 構造�T , pp.121-122, 2005.9

Wind-induced damage caused by Typhoon 0418 in Hokkaido

KATSURA Sigeki, UEMATSU Yasushi, SAKURAI Shuji, JOH Osamu

Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan, Structures I, pp.121-122, 2005.9

9. パラペットを有する陸屋根に作用する局部風圧の変動特性

植松　康，世良昌也

日本建築学会大会学術講演梗概集 ( 近畿 ), 構造�T , pp.167-168, 2005.9

Dynamic characteristics of local wind pressures on flat roofs with parapets

UEMATSU Yasushi, SERA Masaya

Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan , Structures I, pp. 167-168, 2005.9

10. 翼型断面をもつ農業用鉄骨ハウスの風荷重

岩谷　賢，植松　康

日本建築学会大会学術講演梗概集 ( 近畿 ), 構造�T , pp.189-190, 2005.9

Wind loads on a steel greenhouse with a wing-like cross section

IWAYA Masaru, UEMATSU Yasushi

Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan , Structures I, pp. 189-190, 2005.9

11. 球形ドームの外装材設計における新しい風荷重評価システムに関する研究

−ニューラルネットワークと時刻歴シミュレーションの応用−

日本建築学会大会学術講演梗概集 ( 近畿 ), 構造�T , pp.231-232, 2005.9

Wind Load Evaluation System for Cladding of Spherical Domes

- Application of Neural Network and Time-history Simulation -

RAKU Tsuruishi, YASUSHI Uematsu

Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan , Structures I, pp. 231-232, 2005.9

12. ハイブリッド線材の伸び変形特性に関する基礎実験

宮本雅登 , 山田大彦 , 植松　康

日本建築学会大会学術講演梗概集 ( 近畿 ) ，構造�V , pp.685-686, 2005.9

Experiments on tensile deformation characteristics of Hybrid Member

MIYAMOTO Masato, YAMADA Motohiko, UEMATSU Yasushi

Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan, Structures �V , pp. 685-686, 2005.9

13. アラミド繊維ロープを用いた弾性関節接合部の離間回転性能に関する実験

小幡昭彦，山田大彦

日本建築学会大会学術講演梗概集 ( 近畿 ) ，構造�V , pp.775-776, 2005.9

Study on Elastic-Hinge Joint System with Aramid Fiber Rope

OBATA Akihiko, YAMADA Motohiko

Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan, Structures �V , pp. 775-776, 2005.9

14. Effects of Parapet on Fatigue-Related Characteristics of Wind Pressures Acting on Flat Roofs

Yasushi Uematsu, Shogo Otani, Akira Kudo, Shuji Nakamura, and Masayuki Nakajima

The Sixth Asia-Pacific Conference on Wind Engineering(APCWE-VI), Seoul , Korea , September 12-14, 2005 , pp.929-942, 2005.9

ABSTRACT ： The purpose of the present study is to investigate the characteristics of fluctuating wind pressures on flat roofs with parapets in detail, based on a series of wind tunnel experiments and thereby to discuss the wind pressure loading cycles for evaluating the wind resistance of roof cladding to dynamic wind loading. Focus is on the effects of parapet height on the fatigue-related characteristics of wind pressures.

First, the statistics of wind pressures, i.e. mean, standard deviation, maximum, minimum, skewness and kurtosis are computed and the effects of parapet height on these values are investigated. Then, fatigue characteristics of pressure fluctuations are discussed based on the distribution of load cycles over both cycle ranges and mean levels provided by rainflow count method.

15. Development of a Small Wind Turbine of Straight Darrieus Type with Horizontal Axis Installed on the Rooftop of Buildings

R. Sasaki, Y. Uematsu, T. Nozawa, S. Nagai, S. Katsura, T. Oya

The Sixth Asia-Pacific Conference on Wind Engineering(APCWE-VI), Seoul , Korea , September 12-14, 2005 ,

pp.1402-1412, 2005.9

ABSTRACT: We are developing a small, efficient wind turbine, which generates electricity using the relatively strong airflow occurring near the windward edge of a flat-roofed building. The turbine has a horizontal axis and a few straight blades. Due to its positioning at the edge of a roof, this significantly reduces the downwind wind speed, a feature that results in an improvement of the wind environment on the rooftop, as well as a reduction of wind loads acting on roof cladding. A series of wind tunnel experiments is carried out using a scale model of the turbine. Firstly, the effects of airfoil and number of blades on the rotational characteristics, i.e. the startup and steady rotor speeds are investigated in smooth and grid-generated turbulent flows. Secondly, the resultant aerodynamic forces for the different airfoils are measured using a section model installed on a force balance. Finally, the wind speed distribution downwind of the rotating turbine is measured.

16. Wind Load Evaluation System for Cladding of Spherical Domes using Aerodynamic Database, Neural Network and Simulation

Yasushi Uematsu, Yosuke Araki, Raku Tsuruishi, Takeshi Hongo

The Sixth Asia-Pacific Conference on Wind Engineering(APCWE-VI), Seoul , Korea , September 12-14, 2005 ,

pp.2713-2728, 2005.9

ABSTRACT: A new load evaluation system for the design of cladding of spherical domes using aerodynamic database, artificial neural network (ANN) and time-series simulation technique is proposed. First, a series of wind tunnel experiments are carried out, and a huge amount of pressure data is stored on a computer. Then, the statistics of the wind pressures, e.g. mean, standard deviation, skewness and kurtosis are computed. After being smoothed with a cubic spline function to eliminate noises included in the experimental data, these statistical values are stored in a database, together with the coordinates of the measuring points. Next, an ANN is constructed, which predicts the statistical values of pressure coefficients at arbitrary points from the information on the dome's geometry and the turbulence intensity of the approach flow. Finally, a time series of wind pressure is numerically simulated based on an FFT approach.

17. 独立上屋の風荷重に関する研究：　その１　外装材用ピーク風力係数

植松　康 , 飯泉江梨，セオドル・スタトポラス

日本風工学会論文集，第 30 巻第 4 号 ( 通号第 105 号 ) ， pp. 91-102 ， 2005.10

Wind loads on free-standing canopy roofs

Part 1 Peak wind force coefficients for the design of cladding

Yasushi UEMATSU, Eri IIZUMI, Theodore STOTHOPOULOS

Journal of Wind Engineers, JAWE, Vol.30, No.4(No.105) , pp.91-102, 2005.10.

ABSTRACT: Wind loads on free-standing canopy roofs have been studied in a wind tunnel. Three types of roof geometries, i.e. gable, troughed and mono-sloped roofs, with roof pitches between 0o and 15o, were tested. Wind pressures were measured simultaneously at many points both on the top and bottom surfaces of the roof model for various wind directions. The paper describes the characteristics of the local wind pressures with special attention to the mechanism and estimation of the peak net pressure coefficients. Based on the results for the most critical positive and negative peak pressure coefficients irrespective of wind direction, the peak wind force coefficients for the design of cladding and its immediately supporting structures are proposed. The proposed values are compared with the previous wind-tunnel results as well as with the specifications of Codes and Standards. The effect of obstruction under the roof on the wind force coefficients is also investigated.

18. 球形ドームの外装材用風荷重評価システム

植松　康，鶴石　楽，本郷　剛

第 55 回理論応用力学講演会講演論文集， 3D14 ， pp.535-536 ， 2005.1

Wind loads evaluation system for cladding design of spherical domes

Yasushi Uematsu, Raku Tsuruishi, Takeshi Hongo

The 55th Nat. Cong. of Theoretica l & Applied Mechanics 2006 , 3D14, pp.535-536, 2005.1

ABSTRACT: The paper proposes a computer-assisted wind load evaluation system for the design of cladding of spatial structures, such as spherical domes using artificial neural network and time-series simukation technique. The system can be applied to a risk consistent design as well as to a fatigue design of the cladding. .

付録 平成 17 年度 博士・修士学位論文及び卒業論文題目一覧

博士学位論文

（未来都市工学）

小幡　昭彦　　鋼構造骨組における弾性関節接合の提案と骨組の変形特性に関する研究

修士学位論文

（構造安全システム学）

千葉　悠樹　　鉄骨基礎梁を有する鋼構造骨組の近似解析に関する研究

古川　　幸　　 Linked-Element Method for Analysis of Frames with Elastic-Hinge Joints

（未来都市工学）

岩谷　　賢　　大スパン曲面屋根の振動依存風力の特性に関する基礎的研究

卒業論文

（構造安全システム学）

鵜久森　基　　弾性関節接合を用いた柱・梁接合部の離間・回転性能に関する研究

　　　　　　　〜接合ボルト配置の違いによる弾性関節骨組への影響の解析的研究〜

遠藤津戸武　　アンボンド PC 鋼棒を用いたハイブリッド線材の伸び変形特性に関する研究

（未来都市工学）

忌部　康弘　　建物屋上設置用マイクロ風力発電システムの開発研究

赤星　明紀　　数値予報 GPV データを利用したハイブリッド型地上風予測システムの開発

中原　浩一　　風力制御による高耐風パイプハウスの開発研究

古市　　圭　　機械固定式防水システムの動風圧評価法に関する研究