A Study on the Impact Coefficient of Traffic Flows on a Large Cable-Stayed Bridge in a Windy Environment
By developing a wind-vehicle-bridge coupling dynamic analysis system, the impact coefficient of traffic flows on a cable-stayed bridge and its probabilistic distribution are studied in the paper. Some important influence factors of the impact coefficient, such as the vehicle-bridge coupling effect,...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2014/124536 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849467828725350400 |
|---|---|
| author | L. Ma D. J. Zhou W. S. Han |
| author_facet | L. Ma D. J. Zhou W. S. Han |
| author_sort | L. Ma |
| collection | DOAJ |
| description | By developing a wind-vehicle-bridge coupling dynamic analysis system, the impact coefficient of traffic flows on a cable-stayed bridge and its probabilistic distribution are studied in the paper. Some important influence factors of the impact coefficient, such as the vehicle-bridge coupling effect, traveling velocity, and traffic density, are analyzed. The influence of the coupling effect between a bridge deck’s buffeting and vehicles’ vibration on the impact coefficient of traffic flows on a cable-stayed bridge is paid due attention to. The results show that vehicle-bridge coupling effect and surface roughness exert important influence on the impact effect of a cable-stayed bridge. Considering that impact coefficient of traffic flows on a bridge bears the characteristics of randomness, the paper, on the basis of a large number of samples, interprets the influence of traveling velocity and traffic density in view of its probabilistic distribution. In view of results derived from the coupling dynamic analysis, it is suggested that the impact coefficient be 25% for all spans of a long cable-stayed bridge like the Sutong Yangtze Bridge. |
| format | Article |
| id | doaj-art-e69b184d75ce48be9b18653efd108141 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-e69b184d75ce48be9b18653efd1081412025-08-20T03:26:03ZengWileyShock and Vibration1070-96221875-92032014-01-01201410.1155/2014/124536124536A Study on the Impact Coefficient of Traffic Flows on a Large Cable-Stayed Bridge in a Windy EnvironmentL. Ma0D. J. Zhou1W. S. Han2Department of Civil Engineering, University of Hohai, No.1 Xikang Road, Nanjing, Jiangsu 210098, ChinaDepartment of Civil Engineering, University of Hohai, No.1 Xikang Road, Nanjing, Jiangsu 210098, ChinaDepartment of Bridge Engineering, University of Chang’an, Middle of S. 2nd Ring Road, Xi’an, Shaanxi 710064, ChinaBy developing a wind-vehicle-bridge coupling dynamic analysis system, the impact coefficient of traffic flows on a cable-stayed bridge and its probabilistic distribution are studied in the paper. Some important influence factors of the impact coefficient, such as the vehicle-bridge coupling effect, traveling velocity, and traffic density, are analyzed. The influence of the coupling effect between a bridge deck’s buffeting and vehicles’ vibration on the impact coefficient of traffic flows on a cable-stayed bridge is paid due attention to. The results show that vehicle-bridge coupling effect and surface roughness exert important influence on the impact effect of a cable-stayed bridge. Considering that impact coefficient of traffic flows on a bridge bears the characteristics of randomness, the paper, on the basis of a large number of samples, interprets the influence of traveling velocity and traffic density in view of its probabilistic distribution. In view of results derived from the coupling dynamic analysis, it is suggested that the impact coefficient be 25% for all spans of a long cable-stayed bridge like the Sutong Yangtze Bridge.http://dx.doi.org/10.1155/2014/124536 |
| spellingShingle | L. Ma D. J. Zhou W. S. Han A Study on the Impact Coefficient of Traffic Flows on a Large Cable-Stayed Bridge in a Windy Environment Shock and Vibration |
| title | A Study on the Impact Coefficient of Traffic Flows on a Large Cable-Stayed Bridge in a Windy Environment |
| title_full | A Study on the Impact Coefficient of Traffic Flows on a Large Cable-Stayed Bridge in a Windy Environment |
| title_fullStr | A Study on the Impact Coefficient of Traffic Flows on a Large Cable-Stayed Bridge in a Windy Environment |
| title_full_unstemmed | A Study on the Impact Coefficient of Traffic Flows on a Large Cable-Stayed Bridge in a Windy Environment |
| title_short | A Study on the Impact Coefficient of Traffic Flows on a Large Cable-Stayed Bridge in a Windy Environment |
| title_sort | study on the impact coefficient of traffic flows on a large cable stayed bridge in a windy environment |
| url | http://dx.doi.org/10.1155/2014/124536 |
| work_keys_str_mv | AT lma astudyontheimpactcoefficientoftrafficflowsonalargecablestayedbridgeinawindyenvironment AT djzhou astudyontheimpactcoefficientoftrafficflowsonalargecablestayedbridgeinawindyenvironment AT wshan astudyontheimpactcoefficientoftrafficflowsonalargecablestayedbridgeinawindyenvironment AT lma studyontheimpactcoefficientoftrafficflowsonalargecablestayedbridgeinawindyenvironment AT djzhou studyontheimpactcoefficientoftrafficflowsonalargecablestayedbridgeinawindyenvironment AT wshan studyontheimpactcoefficientoftrafficflowsonalargecablestayedbridgeinawindyenvironment |