基于实测数据的超限车辆荷载模型的建立  

The Establishment of the Load Model of the Oversized and Overweight Vehicles Based on the Measured Data

作　　者：周超[1] 陈飞[2] 

机构地区：[1]安徽工商职业学院,安徽合肥231131 [2]泛华建设集团有限公司南京设计分公司,江苏南京210019

出　　处：《山东农业大学学报（自然科学版）》2015年第5期753-760,共8页Journal of Shandong Agricultural University：Natural Science Edition

基　　金：2013安徽省级质量工程项目:工程造价特色专业省级质量工程(2013tszy091)

摘　　要：基于广西公路管理局提供的申请通行超限车辆数据表,采用双峰正态分布和对数正态分布建立了广西地区五轴和六轴超限车辆总重和轴距的概率分布模型;根据一元正态线性回归理论,建立了总重与轴重的线性回归模型;分析了超限车辆总重和轴距之间的相互关系。根据建立的超限车辆荷载模型,采用蒙特卡洛(Monte Carlo)法各随机生成了10000辆五轴、六轴超限车辆,通过对比随机生成的超限车辆与实际超限车辆对中小跨径简支梁桥产生的跨中最大弯矩效应,验证了按照本文方法建立的超限车辆荷载模型用以模拟实际超限车辆的可行性,同时也为广西地区五轴、六轴超限车辆过桥时,桥梁的安全评估研究提供了车辆荷载数据基础。According to the applications of overloaded vehicles pass data provided by Guangxi Highway Authority based on the probability and statistics theory, this paper used bimodal normal distribution and logical normal distribution to establish the probability distribution model of the total weight and axle base of the five-axle and six-axle vehicles in Guangxi.According to unitary normal linear regression theory, the linear regression model of the total weight and axle load were established to analyze the mutual relation between the total weight and axle base of overloaded vehicles. According to the established overloaded vehicle load model, we used Monte Carlo method to randomly generate 10,000 five-axle and six-axle overloaded vehicles and compared the maximum midspan bending moment effects generated from small and medium span simple supported girder bridge of randomly generated vehicles and the actual overloaded vehicles, verified the feasibility of the overloaded vehicles load model in accordance with the proposed method to simulate the actual overloaded vehicles, but also provided vehicle load data base for the bridge safety assessment study while the five-axle and six-axle overloaded vehicles in Guangxi passing the bridge.

关 键 词：超限车辆 车辆荷载模型 线性回归 

分 类 号：U4[交通运输工程—道路与铁道工程]