Use of the cross-type dowels when connecting elements of timber bridges
The use of cross-type dowels that are battered down with a gunshot method makes it possible to reduce labor intensity and speed up the process of erection and reconstruction of timber bridges. Objective of this paper is to develop a methodology for estimation of the permissible distance between dowe...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2018-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | https://doi.org/10.1051/matecconf/201821601007 |
| Summary: | The use of cross-type dowels that are battered down with a gunshot method makes it possible to reduce labor intensity and speed up the process of erection and reconstruction of timber bridges. Objective of this paper is to develop a methodology for estimation of the permissible distance between dowels. For this purpose, the method of holographic interferometry in colliding beams was used. The resulting equations were obtained for the patterns of interference fringes observed in reflected light transmitted through the hologram. The investigations showed that the shear component of the strain tensor decreases exponentially with distance from the dowel. The concept of deformation attenuation constant was introduced, i.e. the distance at which the deformation decreases by e times. It is recommended to set dowels at a distance equal to eight attenuation constants. |
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| ISSN: | 2261-236X |