【作者】 秦亮；

【导师】 张季超；

【作者基本信息】 广州大学 ， 结构工程， 2006， 硕士

【摘要】 与传统现浇混凝土结构相比，装配整体式混凝土结构是一种适于建筑工业化的结构体系。作为该结构广泛采用的一种楼板形式，装配整体式混凝土叠合楼板具有施工机械化程度高、结构整体性能好等优点，满足工厂化生产的要求。深入研究其受力性能，对优化装配整体式结构的设计与施工方法、推动建筑工业化的发展有着重要意义。本论文结合万科企业股份有限公司建造的国内首栋预制装配整体式混凝土试验楼，对装配整体式叠合楼板做了以下几个方面的研究：1．对国内首栋预制装配式混凝土试验楼进行现场加载试验，分析了装配整体式叠合连续楼板在单调荷载作用下的受力性能、变形特征及内力分布特点。试验结果表明：装配整体式叠合连续楼板具有较大的整体刚度和良好的整体工作性能，变形值较小；“预制板单向配筋，后浇层整体浇筑、双向配筋”的装配整体式叠合连续楼板，除具有单向叠合连续板的内力重分布特征外，还具有沿整体后浇层向周边板块内力调整的特点，表现出一定的双向板受力特性，按照单向连续板理论进行设计计算，偏于保守。2．采用有限元分析软件ANSYS建立装配整体式混凝土叠合楼板的三维有限元模型，分析了其在试验工况下的受力性能及变形特征，并与试验结果进行了比较分析。3．基于塑性铰实际转动能力不小于所需转动能力的原则，初步探讨了二次受力叠合连续结构按现浇连续结构计算弯矩调幅系数的计算公式。综合考虑弯矩调幅系数的各项控制因素，建议装配整体式叠合连续楼板支座弯矩设计值的调幅范围宜控制在30％左右。更多还原

【Abstract】 Assemble-monolithic concrete structure is the kind of structure system fitsconstruction industrialization by comparison with the traditional cast-in-situ concretestructure. Being a style of floor slab applied widely by this structure, assemble-monolithic concrete composite slab has many advantages, such as highly constructionmechanizing, nice monolithic performance and so on. So it is can adapt to the request ofconstruction industrialization. In order to optimize the structural design and constructionmethod, and promote the development of construction industrialization, It is necessaryto research the floor slab on working performance.Relating to the first precast assemble-monolithic concrete test building constructedby Vanke Co.,Ltd, the assemble- monolithic concrete composite slab will be studied infollowing parts.Firstly, by loading test on the first assemble concrete structure, the assemble-monolithic concrete composite slab’s working performance, deformation characteristicand internal force distributing specialty have been analyzed.The test result indicates: Assemble- monolithic concrete composite slab has largeoverall stiffness, good whole working performance and small deflection; Assemble-monolithic concrete composite slab with "single-reinforced in precast slab,bidirectional-reinforced in cast-in-situ slab" doesn’t only has the internal forceredistribution characteristic belongs to unidirectional slab, but also has certainbidirectional board stress characteristic.Secondly, the 3D finite element model of assemble- monolithic concrete compositeslab was established by ANSYS. Then, this paper analyzed the working performanceand deformation of slab under the testing state and compared the simulating result withthe testing result.Thirdly, referenced the correlativity between the section ductility and the relativeheight of pressed part, the coefficient of amplitude modulation of secondary loadingcomposite structure was deduced. Based on the consideration about each effect factoron coefficient of amplitude modulation, the paper suggests that the moment amplitudemodulation coefficient of assemble-monolithic composite slab should be 30%.更多还原