Wind tunnel tests were conducted to investigate the wind pressure characteristics of sawtooth roofs in a simulated open country wind field with relatively low turbulence intensity. Models of monosloped and sawtooth roof (two to four spans) buildings that were 1 200 scale were constructed with intense pressure taps installed on the 15° sloped roofs. Both local and area-average pressure coefficients were determined under different wind directions. Preliminary results indicated that the local peak negative pressure coefficients were slightly lower than the literature results. The increase of roof slope led to higher peak design pressure coefficients for sawtooth roofs, especially in the interior and edge regions of roofs. The peak values of negative pressure captured in high corner regions of monosloped roofs were similar to the corresponding data measured on the windward span of sawtooth roofs, which indicated that the American standard provisions for wind pressure design of monosloped roof structures and the Chinese local wind pressure provisions for sawtooth roofs may underestimate the critical wind suction on high corner regions of monosloped roofs. Generally, the area-average pressures heavily depend on the size of tributary area and the region concerned, and higher roof slope led to faster reduction.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Wind Tunnel Tests on Wind Pressure Characteristics of Sawtooth Roofs


    Contributors:
    Li, Chunguang (author) / Han, Yan (author) / Zhang, Ji (author) / Liu, Shuqian (author) / Cai, C. S. (author)

    Published in:

    Publication date :

    2018-08-30




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown



    Water Leak Tests of Tiled Roofs under Vibration and Scattering by Wind Tunnel

    Okamoto, S. / American Society of Civil Engineers | British Library Conference Proceedings | 2010


    Wind Tunnel Force and Pressure Tests

    W. H. Wentz | NTIS | 1981


    Wind tunnel force and pressure tests

    Wentz, W. H., Jr. | NTRS | 1981


    Wind tunnel tests

    Online Contents | 1993