Investigation Research On Traffic Ability Of Over-Loading Vehicles In Girder Bridge

Xuanhua-Datong speedway is a over loading traffic mountainous highway in Hebei and an important routeway for carrying coal from Shanxi. To exert benefits of Xuanhua-Datong speedway sufficiently, measuring traffic ability of bridges is important.The standard in bridges' designing load in Xuanhua-Datong speedway is auto-super 20,trailer-120. Because of transiting carrying coal vehicle mostly, investigating and measuring all vehicles carrying coal in 109 and analyzing and checking strength and intension of new bridges .In this way, ensuring to advance loading measure of over load and assuring safely operation in bridges according to the standard in bridges' designing load.