【摘要】 针对预制和现浇部分均采用普通混凝土的叠合板存在自重大、要求起吊能力高等缺点,提出了预制部分采用预应力轻骨料混凝土薄板、后浇部分采用普通混凝土现浇的预应力轻骨料混凝土叠合板.这种叠合板既可充分利用轻骨料混凝土自重轻的特点,也可充分利用后浇普通混凝土的抗压强度高的特点.为了研究改进后的叠合板正截面的力学性能,本文对其进行二阶段制造和二次受力试验研究,并对试验现象和结果进行了分析.研究表明:该板既具有自身的特点,又保留了普通叠合板的优良性能,这将为叠合结构在工程中的应用提供更广阔的前景.更多还原

【Abstract】 This paper proposes the composite slab which is combined with the pre-stress lightweight concrete prefab slab and post-cast common concrete.The composite slab makes full use of the light weight characteristic of lightweight concrete and high compressed strength characteristic of common concrete.The experiment was developed to analyze the mechanical properties of the normal section of the slab making and loading in two-stage,and the experimental phenomena and results were analyzed.The study manifests that the composite slab not only has own characteristic but also retains the good capacity of common concrete composite slab.Those beneficial conclusions are drawn to provide more extensive prospect for the practical application of the composite structure.更多还原