随着社会发展，交通量不断增加，公路桥梁使用时间的不断累积，公路桥梁逐渐出现各种病害，导致很多桥梁因承载能力和耐久性下降而成为“旧桥”。旧桥维修和加固逐步得到国家有关部门的重视。通过植筋、粘贴碳纤维布、体外预应力等加固方法可以显著延长桥梁的使用寿命，创造较高的经济效益和社会效益。本文简要介绍植筋技术的原理及特点；植筋工艺的施工控制要点以及该技术在桥梁维修加固中的应用。%〔Abstract〕 With the development of society and traffic volume, Highway Bridge will appear the various diseases upon the using time accumulation, which lead to many bridge turned to old bridge because of bearing capacity and durability decreased. The maintenance and reinforcement of old bridge were gradually emphasized by the national departments concerned. The service life of bridge can be significantly prolonged by the reinforcement methods of bar-embedding, affixing carbon fabric, external prestress, and etc. And the higher economic and social benefits were created. The article briefly introduced the principle and character-istics of bar-embedding technique. The construction control points of bar-embedding technique and appli-cation of the technique in the maintenance and reinforcement of bridge were introduced as well.
展开▼
