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进入21世纪以来,社会经济迅猛发展,道路交通运输业已经成为了国家基础建设的重点行业,关系到道路运输的有序性和稳定、安全性。过去的桥梁施工技术不够完善,交通运输水平有限,当大规模车辆运载的时候,很容易造成桥梁损坏,甚至坍塌的问题,影响交通的运力和安全运输,造成不必要的经济损失。随着施工建设技术的进一步完善,传统的桥梁施工技术已经不能满足交通运输的实际需求,车辆运输不够平稳,可靠性得不到保证。预应力现浇桥梁施工技术,采用混凝土进行施工,能够有效提高桥梁的承重力,增加运输载重,保证道路运输的安全性。但是由于预应力现浇桥梁施工具有一定的复杂性,对技术要求较高,就使得桥梁施工面临着很多问题。针对这样的现象,本文就结合我国预应力现浇桥梁施工的现状,简单阐述一下采取怎样的方式完善相关技术,发挥出技术优势,从而保证道路运输的安全通畅性。
Since the beginning of the 21st century, with the rapid social and economic development, the road transport industry has become a key industry in the state’s infrastructure construction and has a bearing on the orderliness, stability and safety of road transport. In the past, the bridge construction technology was not perfect and the transportation level was limited. When a large-scale vehicle was carried, it was easy to cause the bridge to be damaged or even collapsed, affecting the transport capacity and safe transportation, resulting in unnecessary economic losses. With the further improvement of construction technology, the traditional bridge construction technology has been unable to meet the actual needs of transport, vehicle transport is not stable enough, reliability can not be guaranteed. Prestressed cast-in-place bridge construction technology, the use of concrete construction, can effectively improve the bearing capacity of the bridge, increase transport load and ensure the safety of road transport. However, due to the complexity of the prestressed cast-in-place bridge construction and the high technical requirements, the bridge construction faces many problems. In view of this phenomenon, this article combined with the status quo of the construction of prestressed cast-in-place bridges in China briefly described how to improve the relevant technologies and give play to the technical advantages so as to ensure the safe and unobstructed road transport.