体外预应力张弦混凝土梁施工技术研究

Research on Construction Technology of External Prestressed Tensile Concrete Beams

随着我国科技创新的发展,弦支混凝土结构体系得到了广泛的应用和研究,弦支混凝土梁结构作为一种新型结构体系,其刚度比普通混凝土梁刚度高。由于体外预应力的作用,减少了混凝土梁的脆性破坏程度,提高了结构的强度与刚度。本项目通过采用钢筋混凝土结构与体外预应力相结合的弦支混凝土梁结构体系,可以克服混凝土梁的自重,增加结构空间,从而研究施工技术。

With the development of scientific and technological innovation in China,the chord-supported concrete structure system has been widely used and studied.As a new type of structural system,the chord-supported concrete beam structure has higher stiffness than ordinary concrete beams.Due to the effect of external prestress,the degree of brittle failure of concrete beams is reduced,and the strength and rigidity of the structure are improved.By adopting a string-supported concrete beam structure system combining reinforced concrete structure and external prestress,this project can overcome the self-weight of concrete beams and increase the structural space,so as to study the construction technology.