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目前对现浇钢筋混凝土密肋空腔楼盖结构体系的受力特性、设计理论与方法研究较少,阻碍了其推广应用。通过对竖向均布荷载作用下,2×1空腔构件的楼盖模型试验研究,探索空腔构件、密肋梁两者协同作用的机理和受力特性,同时对该楼盖模型进行有限元计算。结果表明密肋空腔楼盖模型与普通密肋楼盖的破坏特征和受力特点相似,空腔构件与密肋梁有较强的协同工作能力,计算结果与试验结果基本一致。
At present, the research on the stress characteristics, design theory and method of the reinforced concrete multi-ribbed hollow slab floor system is less and hinders the popularization and application. Through the vertical uniform load under the load, 2 × 1 cavity floor model test study to explore the cavity components, the interaction between the girder and the mechanics of the stress characteristics, while the limited model of the floor Meta-calculation. The results show that the damage characteristics and stress characteristics of the multi-ribbed cavity floor model are similar to those of the common ribbed floor, and the cavity components and the multi-ribbed beam have a good ability to work together. The calculated results are in good agreement with the experimental results.