Earticle

초록

영어

With respect to fatigue damage of heavy traffic on the bridge structure, this paper studied on load spectrum and fatigue simulation. The author used manual recording, live cameras, vehicle dynamic weighing system (WIM) to conduct traffic investigation in a continuous 24-hour period. Basing on these data in Hebei province, we established typical vehicle load spectrum using probabilistic and statistical methods, and deduced a standard fatigue vehicle model on this basis. Then we prepared random load spectrum by MATLAB and realized loading it on a finite element model (FEM). Next, the paper assessed the fatigue life of in-service highway bridges that in Hebei by comparing typical vehicle load and random vehicle load. Results showed that vehicle speed has significant influence on fatigue damage under typical vehicle load. Equivalent stress amplitude is small in two operational states under random vehicle load, the general operation state and intensive operation state. Fatigue damage to bridge under general operation is obvious. After verified the applicability of the standard fatigue vehicle model, we can believe that this model developed in this article can be further used as a reference to check highway fatigue damage in the entire Hebei province. Moreover, all the results showed that the bridges wouldn’t get fatigue failure under a normal operation state when there is no impact of environmental factors.

목차

Abstract
 1. Introduction
 2. Modeling
  2.1 Typical Vehicle Modeling
  2.2 Compiling Random Load Spectrum
 3. Fem Establishment
 4. Fatigue Damage Analysis
  4.1 Typical Vehicle Modeling
  4.2 Fatigue Damage under Random Vehicle Load
  4.3 Fatigue Damage under Effect of Standard Fatigue Vehicle Models
 5. Conclusion
 References

키워드

저자

• Xin Qin [ School of Civil Engineering, Hebei University of Technology, No. 5340 Xi-ping Street, Beichen District, Tianjin, China, Civil Engineering Technology Research Center of Hebei Province, No.5340 Xi-ping Street, Beichen District, Tianjin, China, 300401 ]
• Dou Yuanming [ School of Civil Engineering, Hebei University of Technology, No. 5340 Xi-ping Street, Beichen District, Tianjin, China, Civil Engineering Technology Research Center of Hebei Province, No.5340 Xi-ping Street, Beichen District, Tianjin, China, 300401 ]
• Chen Wan [ School of Civil Engineering, Hebei University of Technology, No. 5340 Xi-ping Street, Beichen District, Tianjin, China, Civil Engineering Technology Research Center of Hebei Province, No.5340 Xi-ping Street, Beichen District, Tianjin, China, 300401 ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Security and Its Applications

• 간기

  격월간

• pISSN

  1738-9976

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605