大跨度橋梁風荷載模擬及程序編制.pdf

大跨度橋梁風荷載模擬及程序編制

提出了一種有效而實用的風荷載模擬方法。
利用工程實際中普遍采用的風速譜，采用多維自
回歸模型AR，并應用BIC法則確定多維自回歸模型的階數(shù)，使模型與功率譜的擬合更具相合性。
用VB
語言模擬了一座跨度為1000m的懸索橋的主梁隨機風場，驗證了該方法的有效性。

An efficient and practical method of wind load simulation. Commonly used in engineering practice using the wind speed spectrum, the use of multi-dimensional self-
 Regression model AR, and apply the BIC multi-dimensional self-rule to determine the order of regression model, the model is fitted with the power spectrum more consistency. With VB
 Language to simulate a 1000m span suspension bridge in the main beam random wind field to verify the validity of the method.