Determination of an Equivalent Loading Circle Which May Represent the Loading of the Dual Wheels

• 作者: Adama Dione Baye Birane Thiam Fatou Samb
• 来源期刊: 土木工程期刊(英文)
• 学科: 医学
• 关键词: DUAL WHEELS Circular Surface EQUIVALENT LOADING Circle Single AXLE with DUAL WHEELS Lateritic Gravelly Cast3M
• 年，卷（期）: 2018,（2）
• 页码范围: 234-244
• 页数: 11页
• 分类号: R73

摘要

This work aims to look for a simplifying surface that can represent the effect of the dual wheels on the variation of the stress and deformation state prevailing during the passage of traffic loads. This was facilitated by the results of Thiam (2016) [4] obtained on the distribution of the vertical contact stress in the space described by the dual wheels. The analysis of the results of this study, on all the loading circles considered, shows that the radius loading circle equal to 0.181 m makes it possible to most probably represent the effect of the dual wheels. With this new surface, the effect of the dual wheels can be determined in 2D. The choice of this load is confirmed by a study in case of overload. Thus, the single axle with dual wheels is represented by a simplified diagram equipped on each side by a disk of radius 0.181 m. These results are obtained using a numerical simulation under Cast3M with a gravelly lateritic pavement.