Ground Anchors
This open access book introduces a non-destructive vibration analysis method for calculating the internal tension force of tested tie rods. This method was formalized in 2003 and patented after two years of investigation, with the patent expiring in 2005. The objective of the book is to present this...
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| Formaat: | Online |
| Taal: | Engels |
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Springer Nature
2024
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| Online toegang: | ONIX_20240813_9789819744145_54 |
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| _version_ | 1869514223609970688 |
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| author | Rincent, Jean-Jacques Henri |
| author_browse | Rincent, Jean-Jacques Henri |
| author_facet | Rincent, Jean-Jacques Henri |
| author_sort | Rincent, Jean-Jacques Henri |
| collection | Directory of Open Access Books |
| description | This open access book introduces a non-destructive vibration analysis method for calculating the internal tension force of tested tie rods. This method was formalized in 2003 and patented after two years of investigation, with the patent expiring in 2005. The objective of the book is to present this method through numerous concrete examples. It covers the theory and principles of instrumentation, explaining how vibratory responses are analyzed to calculate the free and total lengths of the tie rod, as well as its diameter, which includes the reinforcement and its grout. The data obtained from this method can be utilized to: Verify that tie rods adhere to drawings Resize tie rods A notable strength of this book lies in demonstrating the relationship between dynamic stiffness and the tension force of the tie rod, along with the calibration method using static tensile tests. However, performing static tensile tests at heights poses difficulties due to equipment weight, and there is a genuine risk of failure, especially for older tie rods. The book addresses important aspects such as the uncertainty of results and sampling. The examples provided in the book primarily stem from tests conducted in Brazil, where more than 2,000 tie rods were tested over a two-year period on motorway and railway retaining walls. In practical terms, this amounts to 16,000 non-destructive tests as each tie rod is tested eight times. These aging structures, in existence for several decades, exhibit load losses ranging from 1% to 5.5% per year during these periods. The book acknowledges the observation of cyclic load effects on these reinforcements, which warrant further investigation. In one of the tested walls, a limited number of tie rods were re-tensioned. Retaining wall managers increasingly employ this method for maintenance diagnostics. It allows for a representative sample to be taken, providing insight into the existing conditions. |
| format | Online |
| id | doab-20.500.12854ir-142839 |
| institution | Directory of Open Access Books |
| language | eng |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Springer Nature |
| publisherStr | Springer Nature |
| record_format | ojs |
| spelling | doab-20.500.12854ir-1428392024-08-14T04:03:49Z Ground Anchors Rincent, Jean-Jacques Henri tierods tension force dynamic stiffness ND tests tierods tension stiffness ND tests tierods tension stiffness tierods tension tierods retaining walls stiffness thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TN Civil engineering, surveying and building::TNK Building construction and materials thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials::TGB Mechanical engineering thema EDItEUR::P Mathematics and Science::PH Physics::PHD Classical mechanics This open access book introduces a non-destructive vibration analysis method for calculating the internal tension force of tested tie rods. This method was formalized in 2003 and patented after two years of investigation, with the patent expiring in 2005. The objective of the book is to present this method through numerous concrete examples. It covers the theory and principles of instrumentation, explaining how vibratory responses are analyzed to calculate the free and total lengths of the tie rod, as well as its diameter, which includes the reinforcement and its grout. The data obtained from this method can be utilized to: Verify that tie rods adhere to drawings Resize tie rods A notable strength of this book lies in demonstrating the relationship between dynamic stiffness and the tension force of the tie rod, along with the calibration method using static tensile tests. However, performing static tensile tests at heights poses difficulties due to equipment weight, and there is a genuine risk of failure, especially for older tie rods. The book addresses important aspects such as the uncertainty of results and sampling. The examples provided in the book primarily stem from tests conducted in Brazil, where more than 2,000 tie rods were tested over a two-year period on motorway and railway retaining walls. In practical terms, this amounts to 16,000 non-destructive tests as each tie rod is tested eight times. These aging structures, in existence for several decades, exhibit load losses ranging from 1% to 5.5% per year during these periods. The book acknowledges the observation of cyclic load effects on these reinforcements, which warrant further investigation. In one of the tested walls, a limited number of tie rods were re-tensioned. Retaining wall managers increasingly employ this method for maintenance diagnostics. It allows for a representative sample to be taken, providing insight into the existing conditions. 2024-08-14T04:03:48Z 2024-08-14T04:03:48Z 2024-08-13T07:39:07Z 2024 book ONIX_20240813_9789819744145_54 https://library.oapen.org/handle/20.500.12657/92740 9789819744145 9789819744138 https://directory.doabooks.org/handle/20.500.12854/142839 eng open access image/jpeg n/a https://library.oapen.org/bitstream/20.500.12657/92740/1/978-981-97-4414-5.pdf Springer Nature Springer Nature Singapore 10.1007/978-981-97-4414-5 10.1007/978-981-97-4414-5 9fa3421d-f917-4153-b9ab-fc337c396b5a 9789819744145 9789819744138 Springer Nature Singapore 159 Singapore open access |
| spellingShingle | tierods tension force dynamic stiffness ND tests tierods tension stiffness ND tests tierods tension stiffness tierods tension tierods retaining walls stiffness thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TN Civil engineering, surveying and building::TNK Building construction and materials thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials::TGB Mechanical engineering thema EDItEUR::P Mathematics and Science::PH Physics::PHD Classical mechanics Rincent, Jean-Jacques Henri Ground Anchors |
| title | Ground Anchors |
| title_full | Ground Anchors |
| title_fullStr | Ground Anchors |
| title_full_unstemmed | Ground Anchors |
| title_short | Ground Anchors |
| title_sort | ground anchors |
| topic | tierods tension force dynamic stiffness ND tests tierods tension stiffness ND tests tierods tension stiffness tierods tension tierods retaining walls stiffness thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TN Civil engineering, surveying and building::TNK Building construction and materials thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials::TGB Mechanical engineering thema EDItEUR::P Mathematics and Science::PH Physics::PHD Classical mechanics |
| topic_facet | tierods tension force dynamic stiffness ND tests tierods tension stiffness ND tests tierods tension stiffness tierods tension tierods retaining walls stiffness thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TN Civil engineering, surveying and building::TNK Building construction and materials thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials::TGB Mechanical engineering thema EDItEUR::P Mathematics and Science::PH Physics::PHD Classical mechanics |
| url | ONIX_20240813_9789819744145_54 |
| work_keys_str_mv | AT rincentjeanjacqueshenri groundanchors |