Fatigue Behavior of Prestressed Concrete Beam for Straddle-Type Monorail Tracks
Source abstract
Abstract
Monorail transportation systems are widely built in medium and small cities, as well as hilly cities, because of their excellent performance. A prestressed concrete track beam is a key load-carrying structural component and guideway subjected to repeated traffic load. The fatigue behavior of the prestressed concrete beam is critical for the safety of the transportation system. This paper presents the results of an experimental study on the fatigue behavior of a prestressed concrete beam in terms of stiffness degradation and strain change. The displacement and rotation of the beam of concrete and reinforcement were examined, respectively. A three-dimensional finite element model was established to help understand the development of the mechanical behavior. No crack was observed throughout the test. Both concrete and bars behaved in their linear-elastic stage throughout the test, and the bond between them performed well.
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Research context
OpenAlex topics: Structural Behavior of Reinforced Concrete · Railway Engineering and Dynamics · Geotechnical Engineering and Underground Structures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Bridge Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China
Key Laboratory of High-speed Railway Engineering of the Ministry of Education, Southwest Jiaotong University, 111 Section of the Northbound 1, Second Ring Rd., Chengdu 610031, China
Department of Civil and Environmental Engineering, University of Michigan, 500 S State St, Ann Arbor, MI 48109, USA
Sichuan Jiaoda Inspection and Consulting Engineering Company Limited, Chengdu 610031, China
Funding
the Sichuan Science and Technology Program · National Natural Science Foundation of China
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