Thông tin chung
  English
  Đề tài NC khoa học
  Bài báo, báo cáo khoa học
  Hướng dẫn Sau đại học
  Sách và giáo trình
  Các học phần và môn giảng dạy
  Giải thưởng khoa học, Phát minh, sáng chế
  Khen thưởng
  Thông tin khác
  Tài liệu tham khảo
  Hiệu chỉnh
 
Số người truy cập: 106,673,561

 Effects of Random Road Roughness on Dynamic Impact Factor of multi-span Super T Girder Bridge with Link Slab due to Moving Vehicles
Tác giả hoặc Nhóm tác giả: Xuan-Toan Nguyen, Duy-Thao Nguyen
Nơi đăng: Lecture Notes in Civil Engineering (Index by Scopus); Số: Volume 54;Từ->đến trang: 99-104;Năm: 2019
Lĩnh vực: Kỹ thuật; Loại: Bài báo khoa học; Thể loại: Quốc tế
TÓM TẮT
The purpose of paper analyzes influence of random road roughness on dynamic impact factor of Bridge subjected to a moving vehicle. The road roughness is assumed by a stationary random process. The bridge has three spans which is modeled by FEM. The moving vehicle has three axles and is idealized by 6-DOFs. Monte-Carlo method is used to create the random road roughness input. The governing equation of dynamic vehicle-bridge interaction is established by means of d’Alembert’s principle. Galerkin method and Green theory are applied to discrete the governing equation in the space domain. In this paper, Runge-Kutta methodology was used to solve the governing equation in the time domain. After analyzing with a series profile of road roughness input, it is going to obtain the response of bridge output which is also the random process. The FEM analysis totally agrees with the test results of KhueDong Bridge. Furthermore, the road roughness also was investigated to clarify the effects on dynamic impact factor.Finally, when road roughness condition changes from the type A to type E, dynamic impact factor has risen considerably.
ABSTRACT
The purpose of paper analyzes influence of random road roughness on dynamic impact factor of Bridge subjected to a moving vehicle. The road roughness is assumed by a stationary random process. The bridge has three spans which is modeled by FEM. The moving vehicle has three axles and is idealized by 6-DOFs. Monte-Carlo method is used to create the random road roughness input. The governing equation of dynamic vehicle-bridge interaction is established by means of d’Alembert’s principle. Galerkin method and Green theory are applied to discrete the governing equation in the space domain. In this paper, Runge-Kutta methodology was used to solve the governing equation in the time domain. After analyzing with a series profile of road roughness input, it is going to obtain the response of bridge output which is also the random process. The FEM analysis totally agrees with the test results of KhueDong Bridge. Furthermore, the road roughness also was investigated to clarify the effects on dynamic impact factor. Finally, when road roughness condition changes from the type A to type E, dynamic impact factor has risen considerably.
[ 2019\2019m010d023_8_36_15FULL_SCOPUS_Effects_of_Random_Road_Unevenness_on_Dynami.pdf ]
© Đại học Đà Nẵng
 
 
Địa chỉ: 41 Lê Duẩn Thành phố Đà Nẵng
Điện thoại: (84) 0236 3822 041 ; Email: dhdn@ac.udn.vn