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现浇预应力混凝土空腔楼盖综合了现浇混凝土空腔楼盖和无粘结预应力技术的优点,为实现建筑大跨度设计和发展提供了一个重要方向。本文利用新型有限元分析软件STRAT,结合具体工程实例建立现浇预应力混凝土空腔楼盖的有限元模型,通过改变预应力筋布置方案得出其受力特征和挠度变形特征。
The cast-in-place prestressed concrete cavity floor integrates the advantages of the cast-in-place concrete cavity floor and the non-bonded prestressed technology, which provides an important direction for the realization of the large-span design and development of the building. In this paper, finite element model of cast-in-situ prestressed concrete cavity floor is established with new finite element analysis software STRAT and concrete engineering examples. The stress characteristics and deflection deformation characteristics of tendons are obtained by changing the layout of prestressed tendons.