目前制约钢结构住宅推广的一个重要因素是钢梁外露，钢梁外露加大了楼层高度、增加了包覆成本，同时影响室内观瞻，增加了推广难度。因此，借鉴混凝土板-柱结构特点，研究钢-混凝土组合扁梁楼盖具有重要的理论意义和实用价值。国内外针对不等翼缘H型钢组合扁梁的静力性能和抗火性能进行了较为系统的研究，但对节点抗震性能研究较少，且节点构造复杂、可靠性较差，尚需改进。新型不等翼缘蜂窝梁组合扁梁及其梁柱节点就是针对上述问题提出的一种具有自主知识产权的新型组合扁梁形式，兼具前述组合扁梁和蜂窝梁的优点，同时受力性能更好，且节点构造简单，解决了组合扁梁节点复杂的难题，应用前景广阔。目前相关研究尚未见报道。本项目将通过试验研究、理论分析和有限元模拟相结合的方法研究新型不等翼缘蜂窝梁组合扁梁及其梁柱节点的静力与抗震性能，得到正常使用和承载能力极限状态时新型扁梁的承载力和刚度计算方法；提出可供工程实用的节点抗震设计方法。

Currently, exposed steel beams are an important constraint in the promotion of steel residential buildings. With exposed beams, floor height increases, coating costs increases, indoor visual effect decreases, and thus, promotion difficulty greatly increases. Therefore, learning from concrete slab-column structure, studying steel concrete composite slim floor has an important theoretical and practical value. From home and abroad, the asymmetric H-type composite slim floor’s static performance and fire resistance performance has a more systematic study, yet its joints’ seismic behavior is studied less. Besides, the common joint is complicated, less reliable, and still need improvement. A new type asymmetric castellated slim floor beams and beam-column connections is a patented new type steel concrete composite slim floor proposed to solve the above problems. It not only combines advantages of both the aforementioned flat beam and cellular beams, but also performs better. It greatly simplifies the connection, solving the composite slim floor connection difficulty and showing a broad application prospect, and currently related research has not been reported. This project will study the static and seismic behavior of the new type asymmetric castellated slim floor beams and beam-column connections with experiments, theoretical analysis and finite element simulations, and try to obtain the bearing capacity and stiffness of the asymmetric castellated slim floor beams at service and ultimate strength limit state and also propose seismic design methods of the connections.