【作者】 王根艳；

【导师】 王佶；

【作者基本信息】 武汉理工大学 ， 结构工程， 2007， 硕士

【摘要】 现浇密肋空腔楼盖是一种新型的结构形式，其构思巧妙，使楼盖结构能真正的实现双向受力，同时又能克服其它空心楼盖施工麻烦的缺点，所以得到了广泛的应用。但是它的设计计算方法还不成熟，本文结合密肋空腔构件的试验，进行了如下的主要研究工作：1、通过对3个空腔构件的试验，研究密肋空腔构件在竖向荷载作用下的工作性能，包括空腔构件的抗拔、局部抗压和均布荷载作用下的内力和变形情况，及其极限承载力；2、借助大型有限元分析程序ANSYS，对竖向均布荷载作用下3×2空腔构件模型进行非线性分析，模拟竖向荷载作用下空腔构件各阶段的发展变化情况，验证试验结果的正确性；3、运用等刚度原则，将现浇密肋空腔楼盖板等效成上下表皮层和中间夹心层组成的正交各向同性的夹心平板，采用考虑横向剪切变形的拟夹层板法对现浇密肋空腔楼盖板进行连续化分析；4、对影响现浇密肋空心楼盖内力和变形的边梁宽度、肋宽、上下盖板厚等因素进行了分析，讨论了单一参数对该楼盖受力性能的影响规律，提出这些参数适宜取值范围，为对这种楼盖进行设计时提供参考；更多还原

【Abstract】 The cast-in-place hollow floor with dense rid is ingenious in forms, a kind of new structural style, which can make floor structure realize bidirectional stress truly as well as overcome construction’s shortcoming of other hollow floor and has been applied wide spread. But its design method is not still very mature. Combined with some experimentations of the cast-in-place hollow floor with dense rid, some studies on this floor have been carried out in this thesis. The valuable results achieved are outlined as follows:1. Some studies about the hollow floor’s working performance under vertical load have been done by three hollow floor’s components including withdrawal resistance, local resist compression, inner force and deformation and their limit bearing capacity under uniformly distributed load.2. The nonlinear analysis of 3×2 hollow floor’s component has been done under vertical uniformly distributed load by the soft ANSYS. To checkout the test’s correctness the developed situation in different stage has been simulated.3. The cast-in-place hollow floor with dense rid is simulated by the normal isotropic sandwich plate which is made by the upper and nether epidermal and mid layer. The continuously analysis of the floor is considered by the transverse shear deformation of the simulating plate.4. The elementary analysis about the geometrical parameter influences of plate thickness and breadth of rib beam on mechanical properties of the thin-wall core box cast-in-site concrete hollow floor is also made. A single geometrical parameter on mechanical properties of such floor system is set forth and the fitting scale for these parameters is determined to provide the reference when designing.更多还原