钢板笼混凝土短柱轴压性能试验研究

EXPERIMENTAL RESEARCH ON CONCRETE COLUMNS REINFORCED WITH PREFABRICATED CAGE SYSTEM UNDER AXIAL COMPRESSION

钢板笼混凝土(Prefabricated Cage System,PCS)是一种新型的混凝土结构,有着施工速度快、施工质量容易控制、延性好和耗能能力强等优点,可以广泛应用于混凝土结构的各种构件中,是混凝土结构体系的一个重要补充。通过对4根不同特征值的钢板笼混凝土短柱和1根钢筋混凝土短柱进行轴压试验研究,得出:钢板笼混凝土柱的轴压破坏特征与钢筋混凝土柱基本相同;钢板笼混凝土柱的延性要优于钢筋混凝土柱,在箍筋断裂时延性提高最大可达49.2%;钢板笼混凝土柱的耗能比钢筋混凝土柱好,耗能可以提高73.5%;钢板笼混凝土中纵筋受力与其配置位置有关。

The steel cage concrete （ Prefabricated Cage System , PCS） is a new concrete structure .Having advantages of faster construction , high degree of quality control , better ductility and absorbing higher energy , which can be used in many members of a concrete structure , which is an important additional part of reinforced concrete system .The tests were carried out for four concrete columns reinforced with prefabricated cage system and one reinforced concrete column.The main conclusions are：the failure features of concrete columns reinforced with prefabricated cage system are basically similar to rebar reinforced system; the ductility of prefabricated cage system is better than rebar cage system, which improve up to 49.2%; the capacity of absorbing energy can be improved by 73.5% using prefabricated cage system than rebar cage system;the stress of longitudinal steel relates to its position .