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Investigation of the Effect of Reinforcement Type on the Flexural Performance of Slab Tracks
| 题名： | Investigation of the Effect of Reinforcement Type on the Flexural Performance of Slab Tracks |
| 正文语种： | eng |
| 作者： | Yavuz Durgun;Ahmet Gullu;Furkan Qahm;Bayezid Ozden;Ali Ozcan;Beyazit Olger;Erkan Senol;Fatih Sahin;Hakan Saruhan;Ercan Yuksel |
| 作者单位： | Faculty of Civil Engineering Istanbul Technical Univ. Istanbul 34469 Tuerkiye;Ingram School of Engineering Texas State Univ. San Marcos TX 78666;Graduate School Istanbul Technical Univ. Istanbul 34469 Turkiye;Yapiray Railway Construction Systems Industry and Trade Inc. Uskudar Istanbul 34692 Turkiye;Yapiray Railway Construction Systems Industry and Trade Inc. Uskudar Istanbul 34692 Turkiye;Yapiray Railway Construction Systems Industry and Trade Inc. Uskudar Istanbul 34692 Tiirkiye;Dept. of Civil Engineering Beykent Univ. Maslak Istanbul 34398 Turkiye;Faculty of Civil Engineering Istanbul Technical Univ. Istanbul 34469 Turkiye;Faculty of Civil Engineering Istanbul Technical Univ. Istanbul 34469 Turkiye;Faculty of Civil Engineering Istanbul Technical Univ. Istanbul 34469 Turkiye |
| 关键词： | Ballastless slab track; Post-tensioning (PT); Flexural test; Performance evaluation |
| 摘要： | This paper presents the results of a comprehensive experimental study on the flexural performance of ballastless discrete precast slab tracks with two alternative reinforcement types. These are the precast slab tracks produced using ordinary reinforcement [nonpost-tensioned (NPT)] and the precast slab tracks produced using post-tensioned (PT) reinforcement. The study aims to compare the flexural performances of NPT- and PT-type slab tracks using three-point bending tests, even though they continuously sit on the ground with different rigidities in real-life applications. The tests performed on four full-scale slab tracks in the longitudinal and transversal directions resulted in the first cracking and the ultimate loads were greater in PT specimens. Also, the maximum crack widths and residual displacements of PT specimens were smaller. Although the aforementioned performance parameters of NPT-type slab tracks are relatively behind those of PT-type slab tracks, their overall response is still acceptable, with the advantages of easier production and lower cost. |
| 出版年： | 2023 |
| 期刊名称： | Journal of Transportation Engineering |
| 卷： | 149 |
| 期： | 6 |
| 页码： | 04023039.1-04023039.9 |
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