对于不同强度等级的梁、柱接头处的混凝土在浇筑时。应先浇筑高强度等级的梁

For the concrete at the joints of beams and columns of different strength levels during pouring. The joints of high-strength beams and columns should be poured first, and the beams and slabs with low grades should be poured after the initial condensation for 1.5 hours. The beam and slab concrete should be poured at the same time, the primary and secondary beams should be poured in the direction of the secondary beam, and the unidirectional slab should be poured along the long side of the slab.

When pouring concrete at beams and column joints of different strength levels. High-strength grade beams and column joints should be poured first, and after stopping 1.5h initial condensation, then pouring low-grade beams and plates. The concrete of the girder should be poured at the same time, the main secondary beam should be poured in the direction of the secondary beam, and the one-way slab should start pouring along the long side direction of the plate.

When pouring the concrete at the joints of beams and columns with different strength grades. The high-strength beam and column joints shall be poured first, and the low-grade beam and slab shall be poured after 1.5h initial setting. The beam slab concrete should be poured at the same time, the main and secondary beams should be poured along the direction of the secondary beam, and the one-way slab should be poured along the long side of the slab.<br>