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进行了布置筒芯的6m×6m现浇混凝土空心楼盖的试验研究,得到了竖向均布荷载作用下空心楼盖的裂缝发展规律、破坏形态、荷载-挠度关系和极限承载力。结果表明,单向布置筒芯的空心楼盖具有明显的双向受力性质,布置筒芯的现浇混凝土空心楼盖具有良好的变形性能和较高的承载能力。
The test of 6m × 6m cast - in - situ concrete hollow floor with the core arranged was carried out. The crack development law, failure mode, load - deflection relationship and ultimate bearing capacity of the hollow floor under vertical uniform loading were obtained. The results show that the hollow floor with one-way arrangement of core has obviously bi-directional stress. The cast-in-place concrete hollow core with the core has good deformation performance and high carrying capacity.