000004795 001__ 4795
000004795 005__ 20141119144554.0
000004795 04107 $$aeng
000004795 046__ $$k2002-06-02
000004795 100__ $$aGioffre, Massimiliano
000004795 24500 $$aSTOCHASTIC SIMULATION OF CORRELATED WIND PRESSURE FIELDS ON LOW-RISE GABLE ROOF STRUCTURES

000004795 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004795 260__ $$bColumbia University in the City of New York
000004795 506__ $$arestricted
000004795 520__ $$2eng$$aThis paper presents the preliminary results of an ongoing study to quantify the effects of wind loads on the roof of a low-rise building. Wind tunnel data is used to establish a statistical characterization of the pressure coefficients sampled at 14 points in a region of separated flow over a single sheathing panel. The overall fluctuating uplift on the sheathing panel is a function of the statistical properties at the individual taps on that panel. Of particular interest for design is the most likely peak value of the aggregate load in extreme wind conditions, which is dependent on the probability density function at each tap as well as the degree of correlation between taps. A simulation methodology is applied to generate realizations of wind loads that duplicate the measured characteristics over the sheathing panel. Both the cross-spectral and highly non-Gaussian characteristics of the data at 14 pressure taps are maintained through the use of a recently developed multi-variate non-Gaussian simulation algorithm. The level of correlation between taps is varied in the simulations to investigate the effects of assuming cases from no correlation to full correlation on the panel. The ASCE 7-98 wind loads are calculated for comparison with these generated aggregate loads. Experimentally determined maximum uplift capacities of sheathing panels are also compared with the simulated loads. Two different wind directions are considered. One direction leads to Gaussian loads over the panel, and another produces non-Gaussian loads that results in increased peak loads.

000004795 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004795 653__ $$aStochastic simulation, wind loads, low rise buildings

000004795 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004795 720__ $$aGioffre, Massimiliano$$iGurley, Kurt$$iCope, Anne
000004795 8560_ $$ffischerc@itam.cas.cz
000004795 8564_ $$s338572$$uhttps://invenio.itam.cas.cz/record/4795/files/347.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004795 962__ $$r4594
000004795 980__ $$aPAPER