东南大学学报（自然科学版）
東南大學學報（自然科學版）
동남대학학보（자연과학판）
JOURNAL OF SOUTHEAST UNIVERSITY
2014年
4期
826-831
,共6页
装配式混凝土双板剪力墙%低周反复荷载%剪跨比%边缘构件
裝配式混凝土雙闆剪力牆%低週反複荷載%剪跨比%邊緣構件
장배식혼응토쌍판전력장%저주반복하재%전과비%변연구건
double-wall precast concrete shear wall%low-cyclic reversed loading%shear span ratio%boundary element
为了研究装配式混凝土双板（ DWPC）剪力墙的抗震性能，在轴压比为0．1的条件下，对3组具有不同剪跨比和边缘构件配筋率的6个DWPC剪力墙和3个现浇剪力墙的足尺比例试件进行低周反复荷载试验．结果表明，DWPC剪力墙具有良好的整体工作性能；在边缘构件上设置连续复合螺旋箍能改善DWPC剪力墙的承载力、刚度及耗能能力，减缓其刚度退化；随着边缘构件配筋率的增加，DWPC剪力墙的承载力和刚度增大；经过构造改进的DWPC剪力墙具有良好的弹塑性变形能力和耗能能力；DWPC剪力墙的等效黏滞阻尼系数在试件屈服前与现浇剪力墙相近，在屈服后略低于现浇试件；DWPC剪力墙剪跨比越大，其耗能能力越接近同类现浇试件．
為瞭研究裝配式混凝土雙闆（ DWPC）剪力牆的抗震性能，在軸壓比為0．1的條件下，對3組具有不同剪跨比和邊緣構件配觔率的6箇DWPC剪力牆和3箇現澆剪力牆的足呎比例試件進行低週反複荷載試驗．結果錶明，DWPC剪力牆具有良好的整體工作性能；在邊緣構件上設置連續複閤螺鏇箍能改善DWPC剪力牆的承載力、剛度及耗能能力，減緩其剛度退化；隨著邊緣構件配觔率的增加，DWPC剪力牆的承載力和剛度增大；經過構造改進的DWPC剪力牆具有良好的彈塑性變形能力和耗能能力；DWPC剪力牆的等效黏滯阻尼繫數在試件屈服前與現澆剪力牆相近，在屈服後略低于現澆試件；DWPC剪力牆剪跨比越大，其耗能能力越接近同類現澆試件．
위료연구장배식혼응토쌍판（ DWPC）전력장적항진성능，재축압비위0．1적조건하，대3조구유불동전과비화변연구건배근솔적6개DWPC전력장화3개현요전력장적족척비례시건진행저주반복하재시험．결과표명，DWPC전력장구유량호적정체공작성능；재변연구건상설치련속복합라선고능개선DWPC전력장적승재력、강도급모능능력，감완기강도퇴화；수착변연구건배근솔적증가，DWPC전력장적승재력화강도증대；경과구조개진적DWPC전력장구유량호적탄소성변형능력화모능능력；DWPC전력장적등효점체조니계수재시건굴복전여현요전력장상근，재굴복후략저우현요시건；DWPC전력장전과비월대，기모능능력월접근동류현요시건．
To study the seismic behavior of double-wall precast concrete ( DWPC) shear walls, three kinds of full scale specimens with different shear span ratios and vertical reinforcing bar ratios of boundary elements, including six DWPC shear walls and three normal cast-in-situ shear walls, are tested under low-cyclic reversed loading with axial compression ratio of 0.1.The test results show that the DWPC shear walls can work together well.Installation of continuous compound spiral stir-rups in the boundary element can improve the bearing capacity, stiffness, seismic energy dissipation of the DWPC shear walls and weaken the stiffness degradation.With the increase of the vertical rein-forcing bar ratio of the boundary element, both the bearing capacity and the stiffness increase.The improved DWPC shear walls have satisfactory elastic-plastic deformation capacity and energy dissipa-tion capacity.The equivalent viscous damping coefficients of DWPC specimens are almost the same as those of cast-in-situ specimens within the elastic range while being a little lower beyond the elastic range.Moreover, the seismic energy dissipation capacities of the DWPC specimens approach to those of cast-in-situ specimens with the increase of the shear span ratio.
