新型钢筋桁架混凝土叠合双向板刚度和挠度计算方法研究*
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汤磊1,2，郭正兴2，丁桂平2（1 东南大学基本建设处， 南京 210096； 2 东南大学土木工程学院， 南京 210096）［摘要］根据已完成的新型钢筋桁架混凝土叠合双向板和现浇双向板对比试验成果，针对新型叠合双向板受力特性介于一次受力与二次受力之间的特点，结合我国规范以及相关理论与设计方法，引入相关折减系数对既有等效刚度计算方法的结果进行适当修正，最终提出新型叠合双向板的刚度和挠度计算方法。将计算结果与实测结果比较可知，计算值与试验值基本接近，误差在15%以内，验证了方法的准确性。最后提出了相关设计建议。［关键词］叠合双向板； 钢筋桁架； 刚度； 挠度中图分类号：TU398.2 文献标识码：A 文章编号：1002-848X(2013)19-0030-03Research on calculation method for stiffness and deflection of the new steel bar truss concrete superimposed two-way slabTang Lei1,2, Guo Zhengxing2, Ding Guiping2（1 Infrastructure Management Department, Southeast University, Nanjing 210096, China；2 School of Civil Engineering, Southeast University, Nanjing 210096, China）Abstract: According to results of the contrast test on new steel bar truss concrete superimposed two-way slab and cast-in-situ two-way slab, in view of the mechanical characteristics of the new superimposed two-way slab between primary loads and secondary loads, its stiffness and deflection calculation methods were put forward based on Chinese code and correlation theory and design method. Related reduction coefficient to improve existing formula for equivalent stiffness was introduced. Its accuracy was validated by comparison of calculation and test results that the error between them was controlled within 15%. At last, some suggestions were proposed.Keywords: superimposed two-way slab; steel bar truss; stiffness; deflection*“十二五”国家科技支撑计划课题（2011BAJ10B03）。通讯作者：郭正兴，教授，博士生导师，Email:guozx195608@126.com。参考文献［1］预应力混凝土叠合梁科研组. 预应力混凝土矩形截面叠合梁挠度试验研究及计算方法［R］. 武汉: 武汉水电学院, 1981.［2］吴学辉. 预应力混凝土叠合板刚度非线性有限元分析及挠度计算［D］. 天津: 天津大学, 2007.［3］SZILARD R. 板的理论和分析［M］. 北京: 中国铁路出版社, 1984.［4］徐芝纶. 弹性力学（下）［M］. 北京: 高等教育出版社，1990.［5］吴晓莉. 装配整体式双向板的设计理论和试验研究［D］.南京: 东南大学, 2011.［6］周旺华. 现代混凝土叠合结构［M］. 北京: 中国建筑工业出版社, 1998.［7］秦亮. 装配整体式叠合连续楼板足尺加载试验研究［D］. 广州: 广州大学, 2006.
