000010279 001__ 10279
000010279 005__ 20141205155710.0
000010279 04107 $$aeng
000010279 046__ $$k2008-10-12
000010279 100__ $$aHuang, Henry
000010279 24500 $$aSeismic Consideration for High Rise Concrete Wind Turbine Towers

000010279 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010279 260__ $$b
000010279 506__ $$arestricted
000010279 520__ $$2eng$$aGlobally increasing demand and cost of energy motivate the Shanghai Science and Technology Development Committee wind energy research program to develop a large wind turbine (LWT) technology that will allow wind systems to compete in regions of low wind speed. Most of current wind turbine powers on world are less than 1.0 MW supported by tubular steel towers and their tower height less than 80 meter. Earthquake load may not be significance to the tower design due to following reasons; first, wind turbine towers often are placed in wide-open fields and high wind gust areas, the wind load from the turbine and direct wind pressure on the tower usually governs the design of the tower; second, steel tubular tower structures usually are lighter than concrete structures, thus, they have less seismic inertial force than that of concrete tower. For large wind turbine towers with the turbine head weight getting heavier, the seismic load very likely becomes governing loading case for a pre-stressed concrete tower, especially in region of the high seismic zones. As tower getting taller and support large turbines, pre-stressed concrete tower solution becomes more competitive in overall cost in the latest study. In this paper a series height of the pre-stressed concrete towers segmental stacked and post-tensioned by tendons are studied and compared with steel tubular towers under prescribed seismic load under different design code including China GB, US IBC 2003 and Euro-code. The tapered tower fundamental dynamic properties are estimated by the Raleigh-Ritz method and compared with FEM results.

000010279 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010279 653__ $$aHigh rise structural systems, Wind turbine tower, Seismic design, Prestressed concrete tower 

000010279 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010279 720__ $$aHuang, Henry$$iMa, Jim$$iXu, Rong$$iWu, Xiaowei
000010279 8560_ $$ffischerc@itam.cas.cz
000010279 8564_ $$s271005$$uhttps://invenio.itam.cas.cz/record/10279/files/05-06-0014.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-06-0014.
000010279 962__ $$r9324
000010279 980__ $$aPAPER