现浇圆管式空心楼板的正交各项异性研究
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（1东南大学土木工程学院，南京210096；2江苏省建筑设计研究院有限公司，南京210019；3东南大学建筑设计研究院有限公司，南京210096）[摘要] 本文主要研究现浇混凝土圆管式空心板的正交各向异性特性。通过ABAQUS有限元软件对不同管径和不同肋间距的圆管式空心楼板进行分析，得到了圆管式空心楼板顺管向和横管向两个方向的刚度及刚度比，给出了两个方向的弹性模量，剪切模量和泊松比的计算公式，为现浇混凝土空心板的理论研究和设计提供了依据。中图分类号：TU377 文献标识码：A 文章编号：1002-848X(2013)S1-0687-05Study on orthotropy of circle tubular hollow slabLiu Jie1, Zhu Qiang2, Liang Shuting1, Zhu Xiaojun3(1 School of Civil Engineering, Southeast University, Nanjing 210096, China; 2 Jiangsu Provincial Architectural D&R Institute LTD., Nanjing 210019 China; 3 Architects &Engineers, LTD of Southeast University, Nanjing 210096, China)Abstract: This paper studies the cast-in-situ concrete hollow round tube plate of the orthogonal anisotropy. By the finite element software ABAQUS, different pipe diameter and circular tubular hollow slabs in different rib spacing are analyzed, with circle tubular hollow slab along the pipe to the cross and to the two direction stiffness and stiffness ratio calculated, the two direction of the elastic modulus designed, as well as shear modulus and poisson's ratio calculation formula. It provides the basis for the theoretical study and design of the cast-in-place concrete hollow slab.Keywords: Circle tubular hollow slab; orthotropy; ratio of rigidity
