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为改善钢框架内填钢筋混凝土剪力墙结构的抗震性能和变形能力,设计了一榀半刚接钢框架内填高延性纤维混凝土剪力墙试件,并进行了拟静力试验,研究其破坏机理、变形能力及耗能能力。试验结果表明:钢框架与内填高延性纤维混凝土剪力墙形成组合作用,能充分发挥高延性纤维混凝土良好的受拉应变硬化和多裂缝开展性能,有效控制剪切斜裂缝的开展,提高结构的层间变形能力;试件的开裂位移、屈服位移和峰值位移明显增大,表明高延性纤维混凝土良好的拉伸性能可提高结构的弹性层间位移;试件破坏时,能充分发挥高延性纤维混凝土剪力墙良好的耗能能力和耐损伤能力,减小钢框架的塑性变形,实现结构的可修复功能。
In order to improve the seismic performance and deformation capacity of reinforced concrete shear wall structure with steel frame, a semi-rigid steel frame with high ductility fiber reinforced concrete shear wall was designed and tested by pseudo-static test Damage mechanism, deformation capacity and energy consumption. The experimental results show that the combination of steel frame and high-ductility fiber reinforced concrete shear walls can fully exert good tensile strain hardening and multi-fracture performance of high ductility fiber reinforced concrete, effectively control the development of oblique shear cracks and improve the structure Of the deformation of the specimen; specimen cracking displacement, yield displacement and peak displacement increased significantly, indicating that the good tensile properties of high ductility fiber reinforced concrete structure can increase the elastic layer displacement; specimen failure, can give full play to the high ductility The fiber concrete shear wall has good energy dissipation capacity and resistance to damage, reduces the plastic deformation of the steel frame and realizes the repairable function of the structure.