Probabilistic model of bridge vehicle loads in port area based on in-situ load testing

2017 3rd International Conference on Energy, Environment and Materials Science

能源学;生态环境科学;材料科学

Deng, Ming^1,2 ; Wang, Lei^1 ; Zhang, Jianren^1 ; Wang, Rei^2 ; Yan, Yanhong^2

School of Civil Engineering and Architecture, Changsha University of Science and Technology, Changsha Hunan

410114, China^1

Tianjin Transportation Research Institute, Tianjin

300300, China^2

关键词: Calculated values;    Calculation results;    Probabilistic modeling;    Standard values;    Tianjin ports;    Vehicle load;    Vehicle load effect;    Weigh-in-motion systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/94/1/012205/pdf
DOI  :  10.1088/1755-1315/94/1/012205

来源: IOP

【 摘 要 】

Vehicle load is an important factor affecting the safety and usability of bridges. An statistical analysis is carried out in this paper to investigate the vehicle load data of Tianjin Haibin highway in Tianjin port of China, which are collected by the Weigh-in- Motion (WIM) system. Following this, the effect of the vehicle load on test bridge is calculated, and then compared with the calculation result according to HL-93(AASHTO LRFD). Results show that the overall vehicle load follows a distribution with a weighted sum of four normal distributions. The maximum vehicle load during the design reference period follows a type I extremum distribution. The vehicle load effect also follows a weighted sum of four normal distributions, and the standard value of the vehicle load is recommended as 1.8 times that of the calculated value according to HL-93.