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Time-domain buffeting analysis of the tower of long-span bridges on the basis of mixed programming(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2009年03期
Page:
68-72
Research Field:
Publishing date:
2009-06-20

Info

Title:
Time-domain buffeting analysis of the tower of long-span bridges on the basis of mixed programming
Author(s):
WANG Tong-ning1; MA Lin2; LIU Jian-xin1; LI Jia-wu1
1.School of Highway,Chang’an University,Xi’an 710064,Shaanxi,China;2.School of Mechanics & Civil Engineering & Architecture,Northwestern Polytechnical University,Xi’an 710072,Shaanxi,China
Keywords:
bridge engineering;  timedomain buffeting analysis;  mixed programming;  improved WAWS;  wind effect of tower
PACS:
U441.3
DOI:
-
Abstract:
According to analysis for buffeting response of the tower of longspan bridges in time domain, program is realized by mixed programming with Matlab and ANSYS parametric design language(APDL) for analyzing buffeting response of longspan bridges in this paper. The method for the turbulent wind field simulation on the basis of improved WAWS and buffeting analysis on the basis of mixed programming are adopted. Turbulent wind fields in Matlab environment were simulated, and buffeting timedomain analysis with transient dynamic analysis in ANSYS environment were finished, and the north tower of the Edong Yangtse River in Hubei Province is analyzed. The results show that method of wind field simulation and buffeting analysis is feasible and correct, and spectral representation method of simulating wind field is improved with Lagrange interpolation, the number of matrixs Cholesky decomposition is largely decreased, and calculating efficiency is markedly advanced. 1 tab, 9 figs, 11 refs.

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Last Update: 2009-06-20