Study Of Bridge Reinforcement Methods Based On Large-Scale Equipment Transportation

Large-scale transport has long, wide, ultra-high, overweight features, so that therequirements standards are very strict on the transportation routes. Throat as road transport,the bridge also plays an integral role in the process of a large-scale equipment transportation,and large transport’s truck features led to the carrying capacity of the bridge become animportant factor affecting line accessibility.Design standards of the early construction bridge are generally low, coupled with the useof the previous years, the carrying capacity already cannot meet the demand of the large-scaleequipment transportation. In this type of bridge, simple-supported beam bridge accounted forthe vast majority. Therefore, this thesis under the technology project of the Ministry ofTransport-"Western Region Road Heavy transport regulatory system and channel adaptive",considered from simple-supported beam bridge structure characteristics, using the bridgedeformation and deflection theory, proposed dangerous section deflection method forchecking bridges capacity, and verified by bridges Dr. Software, providing a new method forthe large transport bridge carrying capacity judgment.Bridge which cannot meet the requirement need to implement measures to reinforce,through analyzing simple-supported beam bridge force characteristics and common diseases,introduced the basic principles and the advantages and disadvantages of several reinforcementmethods. And based on the principle of security, economy and timeliness in large-scaleequipment transportation, conducted a comparative evaluation of several methods with DEA,the pros and cons of each method are sorted. Combining with the different classification ofsimple-supported beam bridge, conducted applicability analysis of each method, establishedreinforcement method selection system, providing a reliable basis for reinforcement methodselection.