预应力技术在高速公路桥梁加固中的应用分析

Analysis of Application of Prestressing Technology in Highway Bridge Strengthening

高速公路桥梁由于单板受力会导致其承载力降低,当桥梁车流量增多时,就容易导致坍塌时间,所以需要及时的对其进行加固处理,一般情况下,加固方式有粘接钢板、增大截面、粘接碳纤维布、体外预应力技术等。每种方式都有其各自的优缺点。文章使用预应力技术对桥梁进行加固处理,分析该技术的优缺点,然后将其运用于实体的高速公路桥梁加固中,最后得出使用该方法能够增加桥板的强度和刚度,使其处于弹性工作状态。

Due to the stress of the veneer on the highway bridge,its bearing capacity will be reduced.When the traffic volume of the bridge increases,it will easily lead to the collapse time.Therefore,it is necessary to reinforce it in time.Generally,the reinforcement method is bonded steel plates,increasing the cross section,bonding carbon fiber cloth,external prestressing technology,etc.Each method has its own advantages and disadvantages.The paper uses prestressing technology to strengthen the bridge,analyzes the advantages and disadvantages of the technology,and then applies it to the reinforcement of solid highway bridges.Finally,it is concluded that using this method can increase the strength and stiffness of the bridge slab and make it elastic working status.