桥梁超重荷载与限载标准的确定  

Vehicle's overload and limiting load standard for bridge safety

作　　者：宗雪梅[1] 胡大琳[1] 高军 

机构地区：[1]长安大学桥梁与隧道陕西省重点实验室 [2]榆林市交通局,陕西榆林719110

出　　处：《长安大学学报（自然科学版）》2008年第1期60-65,共6页Journal of Chang’an University(Natural Science Edition)

基　　金：科技部中国-南非科技交流基金项目(01-503J);陕西省交通科技项目(03-23K)

摘　　要：为了分析公路运营中超重荷载对桥梁的影响,以陕西省府谷—店塔公路上运煤超载车辆为调查对象,根据车辆装载特点和轴型分布特征,将超载车辆分为9种类型,分析了9种车型的超载、超限情况;利用线性回归,得出超载与超限的函数关系。利用等代荷载方法,与公路-Ⅰ级荷载相比较,确定出9种车型的限载系数和限载标准,评价了限载后车辆荷载特性,认为车辆限载后宜使用多轮、多轴运营车型。In order to find out the influence of vehicle＇s overload on bridge safety, the vehicles with overload of coals on the highway from Fugu-Dianta in Shaanxi Province are investigated, the vehicles are divided into 9 kinds according to their loading feature and axle types, the datum about overloads and overlimits of each kind of vehicles are analyzed, and their functional relation is drawn out by linear regression. The equivalent loads of vehicles are compared with the ones of highway-I load standard. The coefficients and standard of limiting loads for each kind of vehicles are determined, the load features of each kind of vehicles are studied after limiting loads. It is pointed out that the multi-wheels and multi-axles vehicles should be used in transportation after limiting loads. 7 tabs, 1 fig, 9 refs.

关 键 词：桥梁工程 超载车辆 超限 线性回归 限载标准 

分 类 号：U441.2[建筑科学—桥梁与隧道工程]