国防公路梁式桥快速加固新技术的军事适用性分析

目前，我国为数众多的国防公路梁式桥不能满足军用重装备的通过要求，且现有的加固技术往往不能满足快速性等军事适用条件。鉴于此，分析了我国国防公路梁式桥快速加固存在时效性、操作性、可靠性、安全性四项军事需求。介绍了三种梁式桥快速加固技术：基于摩擦一胶接机理的混杂锚固系统（HB—FRP）、截面转换加固钢筋混凝土T（或П）形梁桥技术和钢结构拱形桁架技术，并简要分析了三种技术的军事适用性，对于国防公路梁式桥抢修加固具有一定的借鉴意义。最后简要阐述了对国防公路梁式桥快速加固的几点思考，对国防公路梁式桥抢修加固技术的发展起到一定的参考作用。

Analysis of the Adaptability of the New Techniques for Fast Reinforcing RC Beam, Bridges of National Defense Highways

At present, a large number of RC beam bridges of our national defense highways are not up to the requirements for the passage of heavy-duty military equipments. Besides,the currently-used reinforcing techniques can＇t meet the requirements of military adaptability such as rapidity, etc. Owing to the above-mentioned, analyzed in the paper are four military requirements in fast reinforcing RC beam bridges of national defense highways： timeliness, operability, reliability, and security. Meanwhile, introduced in the paper are three fast reinforcing techniques for RC beam bridges： the HB-FRP anchoring system, the cross-section-converting technique for reinforcing reinforced concrete T-beam （or П-shaped beam） bridges, and the steel arch truss technique,with the military adaptability of the three techniques briefly analyzed. The result of the study may serve as a useful reference for the rush-repair of beam bridges of our national defence highways. At the end of the paper,dealt with are some points of our reflection on fast reinforcing RC beam bridges of our national defense highways,which may be of certain value in promoting the development of the rush-repair and reinforcing techniques for RC beam bridges of national defense highways.