同条件下现浇和新型装配式混凝土框架边节点的受力性能分析

ANALYSIS OF MECHANICAL BEHAVIOR OF SIDE JOINTS OF CAST-IN-PLACE AND NEW-TYPE PREFABRICATED CONCRETE FRAME UNDER THE SAME CONDITION

通过同条件下现浇和新型装配式混凝土框架边节点的静载试验分析,并与有限元计算结果进行对比,得出该新型装配式混凝土框架边节点的承载力略低于现浇边节点,但延性优于现浇节点。此外,在新型装配式混凝土框架梁、柱连接处应采取措施抵抗受力时产生的局部压应力,避免接触位置过早发生压碎现象。

Through static load test analysis of cast-in-place and new-type precast concrete frame side joints under the same condition, and comparison with the results of finite element analysis, it is concluded that the bearing capacity of the new-type precast concrete frame side joints is slightly lower than that of cast-in-place side joints, but the ductility is better than that of cast-in-place joints. In addition, measures should be taken to resist the local compressive stress at the connection of the new-type prefabricated concrete frame beam and column and to avoid premature crushing at the contact position.