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预应力加固技术是一种主动的加固方法,它能通过合适的预应力值来改善原结构的应力变形状态,并增加结构的承载能力。特别是近年来,随着预应力技术的发展,预应力加固技术更趋完善,目前已经广泛应用于旧桥加固方面。主要结合工程实例,详细介绍了预应力施工技术在风陵渡黄河公路大桥加固工程中的应用。
Prestressed reinforcement technology is a kind of active reinforcement method, which can improve the stress-deformation state of the original structure and increase the bearing capacity of the structure through appropriate pre-stress value. Especially in recent years, with the development of prestressed technology, prestressed reinforcement technology has become more perfect, and has been widely used in the reinforcement of the old bridge. Mainly combined with engineering examples, the application of prestressed construction technology in the consolidation of Fenglingdu Yellow River Highway Bridge is introduced in detail.