A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Interlaminar thermal effect analysis of steel bridge deck pavement during gussasphalt mixture paving
In this research, the effect of high-temperature asphalt concrete paving on the interlaminar shear behaviour between the steel bridge deck pavement (SBDP) and the orthotropic steel bridge deck (OSBD) is the main objective. A thermal field model of steel box-girder was established based on the transient thermal field theory, and the element deletion method was used to simulate the dynamic paving process of gussasphalt mixture (GAM). The thermal field model was validated by the field monitoring data of Taizhou Yangtze River Highway Bridge in China, and the temperature variations in OSBD during the paving was summarised. Applying the most unfavourable temperature load during GAM paving to the steel box-girder mechanical model, the interlaminar shear stress distribution was calculated, and combined with the shear strength variation of waterproof bonding material during GAM paving, the interlaminar thermal effect of SBDP was evaluated. Results show that the thermal field of steel bridge presents temporal and spatial variation characteristic. The interlaminar shear stress during GAM paving in the low-temperature season is much larger than that in the high-temperature season, but the interlaminar thermal effect is more severe in the high-temperature construction season due to the more inferior shear performance of waterproof bonding material.
Interlaminar thermal effect analysis of steel bridge deck pavement during gussasphalt mixture paving
In this research, the effect of high-temperature asphalt concrete paving on the interlaminar shear behaviour between the steel bridge deck pavement (SBDP) and the orthotropic steel bridge deck (OSBD) is the main objective. A thermal field model of steel box-girder was established based on the transient thermal field theory, and the element deletion method was used to simulate the dynamic paving process of gussasphalt mixture (GAM). The thermal field model was validated by the field monitoring data of Taizhou Yangtze River Highway Bridge in China, and the temperature variations in OSBD during the paving was summarised. Applying the most unfavourable temperature load during GAM paving to the steel box-girder mechanical model, the interlaminar shear stress distribution was calculated, and combined with the shear strength variation of waterproof bonding material during GAM paving, the interlaminar thermal effect of SBDP was evaluated. Results show that the thermal field of steel bridge presents temporal and spatial variation characteristic. The interlaminar shear stress during GAM paving in the low-temperature season is much larger than that in the high-temperature season, but the interlaminar thermal effect is more severe in the high-temperature construction season due to the more inferior shear performance of waterproof bonding material.
Interlaminar thermal effect analysis of steel bridge deck pavement during gussasphalt mixture paving
Liu, Yang (author) / Qian, Zhendong (author) / Zheng, Dong (author) / Zhang, Meng (author)
International Journal of Pavement Engineering ; 20 ; 1323-1335
2019-11-02
13 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2018
Heat conduction effect of steel bridge deck with conductive gussasphalt concrete pavement
| British Library Online Contents | 2018