Study on Wind-Loading Mechanism of Tiled Roofs Using Acceleration Sensors

• Project/Area Number: 22560562
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Building structures/materials
• Research Institution: Shimane University
• Principal Investigator: OKAMOTO Satoru 島根大学, 総合理工学研究科, 教授 (10204033)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2010: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 流体工学 / 耐風設計 / 風洞実験 / 瓦 / 流体関連振動 / 加速度センサー / 飛散 / 風工学 / 流体

Research Abstract

The report presents conclusions on the critical wind loads of tiles on pitched roofs. Because of gaps between the roofing tiles, these types of roof tiles are wind permeable. The net wind load on roofing tile is determined by the external pressure distribution on the roof surface and the internal pressure distribution underneath the roof covering. The external pressure distribution depends on the building flow field and changes in the local flow due to the shape of the roofing tiles. The internal pressure distribution is influenced by the local direction with respect to gaps between the roofing tiles and the resistance of the flow underneath the permeable covering. The critical loading on a roofing tile did not necessarily occur for the critical external pressure distribution on the roof surface.

Research Products

• [Journal Article] Wind Effect on Vibration and Scattering Behavior of Japanes e Roofing Tile (2012)
  • Author(s): S.Okamoto
  • Journal Title: IERI Procedia Volume: IERI Procedia Vol.1(ISSN: 2212-6678) Pages: 53-58
  • Peer Reviewed
• [Journal Article] Wind Effect on Vibration and Scattering Behavior of Japanese Roofing Tile (2012)
  • Author(s): Satoru Okamoto
  • Journal Title: IERI Procedia (ISSN: 2212-6678), Elsevier B.V. Volume: Vol.1 Pages: 53-58
  • Peer Reviewed
• [Journal Article] Water Leak Testing of Japanese Tiled Roofs under Vibration and Scattering (2012)
  • Author(s): Satoru Okamoto
  • Journal Title: IERI Procedia (ISSN: 2212-6678), Elsevier B.V. Volume: Vol.1 Pages: 47-52
  • Peer Reviewed
• [Presentation] Experimental Study of Water Leak Phenomena of Japanese Tiled Roofs under Vibration and Scattering by Wind Tunnel Testing (2012)
  • Author(s): Satoru Okamoto
  • Organizer: 15th International Conference on Experimental Mechanics, Paper Ref: 2883
  • Place of Presentation: Porto, Portugal
• [Presentation] Water Leak Phenomena of Tiled Roofs under Vibration and Scattering (2012)
  • Author(s): Satoru Okamoto
  • Organizer: ISEM-ACEM-SEM-7th ISEM'12-Taipei
  • Place of Presentation: Taipei, Taiwan
• [Presentation] Wind Effect on Vibration and Scattering Behavior of Japanese Slate (2011)
  • Author(s): Satoru Okamoto
  • Organizer: American Institute of Aeronautics and Astronautics 2011 AIAA Aerospace Sciences Meeting
  • Place of Presentation: Orlando, FL, U.S.A.
  • Year and Date: 2011-01-07
• [Presentation] Vibration and Scattering Monitoring of Japanese Roofing Tile by Accelerometer (2011)
  • Author(s): S.Okamoto
  • Organizer: CD-ROM Proceedings of IEEE 2011 International Conference on Fluid Power and Mechatronics (FPM 2011)
  • Place of Presentation: Beijing, China
• [Presentation] Wind Effect on Vibration and Scattering Behavior of Japanese Slate (2011)
  • Author(s): S. Okamoto
  • Organizer: CD-ROM Proceedings of 49th AIAA Aerospace Sciences Meeting incuding the New Horizons Forum and Aerospace Expositon, American Institute of Aeronautics and Astronautics
  • Place of Presentation: Orlando, Florida, USA
• [Presentation] Observations of Wind Effect on Behavior of Roof Tiles by Using High Speed Imaging (2011)
  • Author(s): Satoru Okamoto
  • Organizer: The 11th Asian Symposium on Visualization
  • Place of Presentation: Toki Messe, Niigata, Japan
• [Presentation] Effect on Water Leak of Tiled Roofs by Wind Flow OVER JAPANESE Residence (2010)
  • Author(s): S. Okamoto
  • Organizer: CD-ROM Proceedings of IMECE2010, 2010 ASME International Mechanical Engineering Congress and Exposition, The American Society of Mechanical Engineers
  • Place of Presentation: Vancouver, British Columbia, Canada
• [Book] Chapter 7 Experimental Study of Flow-Induced Vibrations and Scattering of Roof Tiles by Wind Tunnel Testing (2011)
  • Author(s): Wind Tunnels
  • Publisher: Edited by Satoru Okamoto, InTech (Croatia), (ISBN 978-953-307-295-1): S.Okamoto
• [Book] Wind Tunels(ISBN 978-953-307-295-1)(Chapter title : Experimental Study of Flow-Induced Vibrations and Scattering of Roof Tiles by Wind Tunnel Testig) (2011)
  • Author(s): Satoru Okamoto (Editor in Chief)
  • Total Pages: 136
  • Publisher: InTech, Zieglergasse 14 1070 Vienna Austria, European Union
• [Remarks] 島根大学研究者ホームページ
  • URL: http://www.cis.shimane-u.ac.jp/