Study on Progressive Collapse Resistance of Castellated Beam-Column Substructure
In order to study the progress collapse resistance of castellated beam-column substructure and provide design basis for engineering application,the finite element analysis software ABAQUS was used to carry out static loading on the castellated beam-column substructure and the solid beam-column substructure based on the alternate path method.The progress collapse resistance of the castellated beam-column substructure under the column loss and the influence of different parameters on the progress collapse resistance of the castellated beam-column substructure were studied.The peak load of castellated beam-column substructure increases by 64.26％and the corresponding displacement increases by 73.57％compared with that of solid beam-column substructure.The catenary effect develops more fully.The failure mode,peak load and catenary effect are affected by the opening type,opening rate and first hole distance.Castellated beam-column substructure has good progress collapse resistance ability.In order to ensure its good progress collapse resistance performance,circular hole and hexagonal hole should be selected as the opening type,the opening rate should be 40％-60％,and the first hole distance should be 0.75-1.0 times the beam section height.
万方数据
维普
