一种新型先张法预应力混凝土板梁设计及精细化分析

Design & Delicate Analysis of A New Type of Prestressed Concrete Slab Beam by Pretensioning Method

针对现行预制空心板梁存在的主要缺陷,在保留先张法工艺和低结构高度等优点的前提下,对其截面构造和横向连接构造等进行改进和优化,提出一种新型先张法预应力混凝土板梁。采用ABAQUS有限元软件对其进行线弹性分析和非线性分析,全面了解新型板梁单板和横向连接构造的受力,从而验证新型板梁具有良好的受力性能。

Aiming at the major defects of current precast cored slab beam, a new type of pretensioned prestressed concrete slab beam by pretensioning method is proposed, which can improve & optimize the cross-section & the cross connection structures on the basis of retaining pretensioning method technique & low-structure height. The finite element software ABAQUS is adopted at analyzing linear elastic & nonlinear mechanical performances of this new type slab beam. Results in stress performances of the new type slab beam single plate and the cross connection structure may verify that new type slab beam is of good mechanical performances.