CAJ | 학술논문

设计制作了内填充榫卯砌块墙体的钢框架,对体系施加低周水平往复荷载.在往复荷载的作用下,在榫卯节点连接处产生了应力集中,榫头的上部边缘发生剪切破坏,使得插孔处混凝土被压碎,最终导致墙体与连接件发生脱离而体系破坏.开裂后,滞回曲线由梭形向弓形、反S形变化,开裂荷载约为极限荷载的48%,大于同类钢框架填充墙体的比值.说明榫卯结构改善了墙体的变形能力,在墙体达到极限荷载后,可保持裂而不倒.体系的能量耗散系数、等效粘滞阻尼比和延性优于普通填充墙体,说明榫卯结构提高了墙体的耗能能力进而提高了抗震能力.
설계제작료내전충순묘체괴장체적강광가,대체계시가저주수평왕복하재.재왕복하재적작용하,재순묘절점련접처산생료응력집중,순두적상부변연발생전절파배,사득삽공처혼응토피압쇄,최종도치장체여련접건발생탈리이체계파배.개렬후,체회곡선유사형향궁형、반S형변화,개렬하재약위겁한하재적48%,대우동류강광가전충장체적비치.설명순묘결구개선료장체적변형능력,재장체체도겁한하재후,가보지렬이불도.체계적능량모산계수、등효점체조니비화연성우우보통전충장체,설명순묘결구제고료장체적모능능력진이제고료항진능력.
A steel frame infilled with mortice-tenon wall is designed and made. Reciprocal horizontal loads are applied to the frame-wall system. Stress concentration occurs at the connection of mortice and tenon under the reciprocal loads. The top edge of tenon is cracked by shear force, in which the concrete is crushed. The system failed because the wall broken away from connector. After cracking, hysteretic curve has changed from shuttle shape to arc or reversed S shape. Cracking load is 48 percentage of ultimate load, which is more than the ratio of other walls. It means the mortice-tenon improves the deformation behavior. The infill wall is cracked but not collapsed under the ultimate load. Energy dissipation coefficient, equivalent viscous damping ratio and ductility are excelled those of current infill walls. It is shown that the mortice-tenon enhances the energy absorption and shock-resistant ability of the infill wall.