Steel-concrete composite structures have been widely used in the on-site constructions due to the benefit of composite actions provided by the steel and concrete. However, prefabricated steel–concrete composite constructions for building structures are not very popular in practice due to insufficient research studies and the lack of information on the connection systems, especially for the connection of prefabricated composite slabs. Prefabricated slabs are usually designed and constructed as simply supported and discontinuous elements. However, on-site composite slabs are continuous and connected to steel beams using shear connectors. Hence, the capacity of the composite slab constructed on-site is higher than that of conventional prefabricated slabs. Therefore, there is a significant need to develop a prefabricated continuous composite slab system to utilise the full benefit of the composite action. This study proposes interlocking connection systems for prefabricated steel–concrete composite slabs. The proposed prefabricated composite slabs with an interlocking system are analysed using finite element (FE) modelling and compared the results with the conventional slabs such as simply supported non-composite slabs, non-composite continuous slab and composite continuous slab. The ultimate load capacity of the proposed prefabricated composite slabs with the interlocking connection system has been found to be 40% higher than that of simply supported non-composite slabs and 10% lower than that of the continuous composite slab.

钢-混凝土组合结构由于具有钢和混凝土的复合作用，在现场施工中得到了广泛的应用。然而，由于研究不足和连接系统信息的缺乏，用于建筑结构的预制钢-混凝土组合结构在实践中并不是很流行，特别是对于预制复合板的连接。预制板通常被设计和建造为简单支撑和不连续的元件。然而，现场复合板是连续的，并使用剪切连接器连接到钢梁。因此，现场建造的复合板的承载力高于传统的预制板。所以，非常需要开发一种预制的连续复合板系统，以充分利用复合作用的优势。本研究提出了用于预制钢-混凝土复合板的互锁连接系统。使用有限元 (FE) 建模分析了所提出的具有联锁系统的预制复合板，并将结果与​​传统板如简支非复合板、非复合连续板和复合连续板进行了比较。已发现具有互锁连接系统的预制复合板的极限承载能力比简支非复合板高 40%，比连续复合板低 10%。本研究提出了用于预制钢-混凝土复合板的互锁连接系统。使用有限元 (FE) 建模分析了所提出的具有联锁系统的预制复合板，并将结果与​​传统板如简支非复合板、非复合连续板和复合连续板进行了比较。已发现具有互锁连接系统的预制复合板的极限承载能力比简支非复合板高 40%，比连续复合板低 10%。本研究提出了用于预制钢-混凝土复合板的互锁连接系统。使用有限元 (FE) 建模分析了所提出的具有联锁系统的预制复合板，并将结果与​​传统板如简支非复合板、非复合连续板和复合连续板进行了比较。已发现具有互锁连接系统的预制复合板的极限承载能力比简支非复合板高 40%，比连续复合板低 10%。使用有限元 (FE) 建模分析了所提出的具有联锁系统的预制复合板，并将结果与​​传统板如简支非复合板、非复合连续板和复合连续板进行了比较。已发现具有互锁连接系统的预制复合板的极限承载能力比简支非复合板高 40%，比连续复合板低 10%。使用有限元 (FE) 建模分析了所提出的具有联锁系统的预制复合板，并将结果与​​传统板如简支非复合板、非复合连续板和复合连续板进行了比较。已发现具有互锁连接系统的预制复合板的极限承载能力比简支非复合板高 40%，比连续复合板低 10%。