不同强度混凝土梁柱节点承载性能研究

Experimental reseach on interior beam-column joints as the column and beam are constructed with different strength concrete

为了保证高层建筑混凝土梁柱节点核心区强度和承载性能,研究参考国内外经验数据,提出相应的方法,其中柱采用强度等级较高的混凝土,梁和节点区采用强度等级较低的混凝土,2个试件节点区采用角钢笼加强,并结合现行混凝土规范,论述了4个梁柱节点试件的试验结论,提出了梁柱节点的设计建议。

In order to make the beam-column joints in high-rise buildings have considerable strength and bearing capability,it is put farward that the strength of concrete in the beam-column joints shall be the same with that in the beams and slabs,and in the meantime,the joints shall be reinforced with the cage structure formed with angle bars and gusset plates. The test results of four specimens of reinforced concrete interior beam-column joints are described and analyzed. And the joints of two specimens are strengthened with the cage structure. The design recommendations of beam-column joints are given.