A sea-crossing bridge dynamic response calculation method based on wind wave load combination
A technology of load combination and dynamic response, applied in calculation, computer-aided design, special data processing applications, etc., can solve problems such as increased project cost, small overall stiffness, no bridge wind-wave-flow, etc., to reduce project cost, The effect of simple method
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[0109] Below as figure 2 The shown sea-crossing bridge is taken as an example to illustrate the present invention
[0110] Step 1: Joint distribution function F via the Gumbel logistic model XY (x, y) to establish the coupling relationship between wind and waves, that is, the 10-minute average wind speed U 10 and significant wave height H s For different return periods, such as once in 10 years, once in 20 years, once in 30 years, once in 50 years and once in 100 years, the coupling relationship between the 10-minute average wind speed and significant wave height is as follows image 3 shown. image 3 The abscissa is the 10-minute average wind speed, the ordinate is the significant wave height, the upper colored line segment is the return period contour line, a total of 5 return periods, and the lower dotted line is the joint probability density. When the two lines intersect, at this time The probability of wind and waves is the highest. This graph can quickly estimate t...
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