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The static and fatigue behavior of low profile precast concrete sleepers
Low Profile precast concrete sleepers have the same vertical dimension as traditional wooden sleepers and thus offer a promising alternative to replace wooden sleepers on tracks where maintaining vertical alignment is necessary. The structural response of Low Profile precast concrete sleepers was st...
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Department of Civil Engineering
2020
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| _version_ | 1867613332749418496 |
|---|---|
| access_status_str | Open Access |
| author | Goodhead, Andrew H |
| author2 | Moyo, Pilate |
| author_browse | Goodhead, Andrew H Moyo, Pilate |
| author_facet | Moyo, Pilate Goodhead, Andrew H |
| author_sort | Goodhead, Andrew H |
| collection | Thesis |
| description | Low Profile precast concrete sleepers have the same vertical dimension as traditional wooden sleepers and thus offer a promising alternative to replace wooden sleepers on tracks where maintaining vertical alignment is necessary. The structural response of Low Profile precast concrete sleepers was studied under static and fatigue loading regimes using a tuned finite element model and four point flexure laboratory tests. The fatigue tests were conducted by following the procedure specified in the Australian railway code (AS 1084.14-2012). The usefulness of the Australian code fatigue test was brought into question as the fatigue life of Low Profile sleepers far exceeded the 3 million load cycle specified by the code. This study concluded that Low Profile concrete sleepers have excessive fatigue resistance however the limiting design criteria for Low Profile sleepers should be governed by a serviceability approach in order to limit cracking and thus ensure an adequate durability life span. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/31512 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:34:27.383Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Department of Civil Engineering |
| publisherStr | Department of Civil Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/31512 The static and fatigue behavior of low profile precast concrete sleepers Goodhead, Andrew H Moyo, Pilate Civil Engineering Low Profile precast concrete sleepers have the same vertical dimension as traditional wooden sleepers and thus offer a promising alternative to replace wooden sleepers on tracks where maintaining vertical alignment is necessary. The structural response of Low Profile precast concrete sleepers was studied under static and fatigue loading regimes using a tuned finite element model and four point flexure laboratory tests. The fatigue tests were conducted by following the procedure specified in the Australian railway code (AS 1084.14-2012). The usefulness of the Australian code fatigue test was brought into question as the fatigue life of Low Profile sleepers far exceeded the 3 million load cycle specified by the code. This study concluded that Low Profile concrete sleepers have excessive fatigue resistance however the limiting design criteria for Low Profile sleepers should be governed by a serviceability approach in order to limit cracking and thus ensure an adequate durability life span. 2020-03-09T09:42:40Z 2020-03-09T09:42:40Z 2019 2020-03-09T09:14:14Z Master Thesis Masters MSc http://hdl.handle.net/11427/31512 eng application/pdf Department of Civil Engineering Faculty of Engineering and the Built Environment |
| spellingShingle | Civil Engineering Goodhead, Andrew H The static and fatigue behavior of low profile precast concrete sleepers |
| thesis_degree_str | Master's |
| title | The static and fatigue behavior of low profile precast concrete sleepers |
| title_full | The static and fatigue behavior of low profile precast concrete sleepers |
| title_fullStr | The static and fatigue behavior of low profile precast concrete sleepers |
| title_full_unstemmed | The static and fatigue behavior of low profile precast concrete sleepers |
| title_short | The static and fatigue behavior of low profile precast concrete sleepers |
| title_sort | static and fatigue behavior of low profile precast concrete sleepers |
| topic | Civil Engineering |
| url | http://hdl.handle.net/11427/31512 |
| work_keys_str_mv | AT goodheadandrewh thestaticandfatiguebehavioroflowprofileprecastconcretesleepers AT goodheadandrewh staticandfatiguebehavioroflowprofileprecastconcretesleepers |