吊杆在桥梁工程中的应用研究

Research on Application of Suspender in Bridge Engineering

吊杆是中、下承式拱桥的主要受力与传力构件,起到承上启下的作用。吊杆拱桥通过吊杆将梁和拱两种基本构件组合来共同受力,使梁和桥面板的受力通过吊杆传递到拱肋,再通过拱肋传递到下部结构,兼具梁桥对地基的强适应能力和拱桥的较大跨越能力。对吊杆在桥梁中的分类及其特点进行了详细的分析,研究了吊杆在不同桥型中的应用情况以及所存在的问题,并针对存在的问题提出了建议,对今后类似的桥梁加固设计及施工提供参考。

The suspender is the main force bearing and force transmitting component of top-bear and half-through arch bridge,which plays a part of a connecting link between the preceding and the following.The suspender arch bridge combines two basic components like beam and arch to bear the force together,so as to realize that the force of the beam and bridge deck is transferred to the arch rib through the suspender and then to the lower structure through the arch rib,with strong adaptability of the beam bridge to the foundation and large crossing ability of the arch bridge.The detailed analysis on the classification and characteristics of suspenders in bridges is made,the application of suspenders in different types of bridges and the existing problems are studied,and some suggestions for the existing problems are put forward,so as to provide reference for the reinforcement design and construction of similar bridges in the future.