预应力混凝土四边简支双向叠合板的设计方法  

Design Method of Prestressed Concrete Simply Supported on Four Sides of Two-Way Composite Slab

作　　者：周绪红[1] 张微伟[2] 吴方伯[2] 李定乾[2] 

机构地区：[1]兰州大学土木工程与力学学院,甘肃兰州730000 [2]湖南大学土木工程学院,湖南长沙410082

出　　处：《建筑科学与工程学报》2006年第4期54-57,94,共5页Journal of Architecture and Civil Engineering

摘　　要：对预应力混凝土双向叠合板进行了抗弯刚度分析,基于弹性薄板原理,按照正交各向异性板推导四边简支单向预应力矩形板的相应计算公式,通过自编程序求解出双向叠合板在四边简支边界条件下的计算系数,并编制成与普通钢筋混凝土双向板相对应的表格,为其进一步推广应用奠定基础。通过与现浇四边简支双向板弹性计算系数的比较可知,在预应力双向叠合板的设计中,应将预制构件沿短跨方向布置才能更好地发挥其节省钢材的优势。The flexural rigidity of prestressed concrete two-way composite slab was analyzed. Based on the theory of elastic thin plates, according to the orthotropic plate＇s perpendicularity, the corresponding calculation formulas of rectangular unidirectional prestressed slab simply supported on four sides were deduced. Moreover, with the program written by authors, the coefficients of two-way composite slab under border simply supported on four sides were obtained, authors made a form correspondence to the composition slab. Thus, this established a stable condition for the further appliance of such composition slab. Comparing with the elastic coefficient of cast-inLsite two-way slab simply supported on four sides, it shows that in the design of prestressed two-way composite slab, prefabricated components along step short should be fixed up, which can make full use of its advantages of saving steel products.

关 键 词：预应力 双向叠合板 四边简支 弹性薄板理论 

分 类 号：TU378.5[建筑科学—结构工程]