【摘要】 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。更多还原

【Abstract】 In order to improve the seismic behavior and deformation capacity of steel frame with reinforced concrete infill walls,the experimental study on partially-restrained steel frame with ductile fiber reinfoced-concrete( DFRC)infill wall( SDFRCW) was conducted to study failure mechanism,deformation and energy dissipation capacity capacity. Experimental results indicate that the composite action between steel frame and DFRC infill walls can effectively make use of the tensile strain-hardening behavior with multiple fine cracks,control shear oblique crack development and improve inter-story deformability; crack displacement,yield displacement and peak displacement of specimen obviously increase,which indicates that excellent tensile behavior of DFRC can improve elastic story drift of structure; when SDFRCW specimen fails,it could be made use of excellent energy dissipation capacity and damaged resistance capacity of DFRC shear wall to reduce the plastic deformation of steel frame and to realize the reparability function after strong earthquake.更多还原