CAJ | 학술논문

将柱端弯矩增大系数、轴压比和梁剪跨比作为设计参数设计了9个1/2比例的钢筋混凝土框架节点，进行了低周反复荷载试验，研究了构件的破坏形式、各种构件的局部变形对层间位移的贡献。研究表明，结构的层间变形与构件局部变形的关系与试件的破坏形式有关。对于发生梁端弯曲破坏的试件，节点剪切变形引起的层间变形很小，在进行框架结构的弹塑性地震反应分析时，可近似忽略节点区的剪切变形；对于发生梁端弯曲破坏-节点剪切破坏或柱端弯曲破坏-节点剪切破坏的试件，在构件进入屈服状态后，节点的剪切变形引起的层间位移较大，在进行框架结构的弹塑性地震反应分析时，不能忽略节点剪切变形的影响。
장주단만구증대계수、축압비화량전과비작위설계삼수설계료9개1/2비례적강근혼응토광가절점，진행료저주반복하재시험，연구료구건적파배형식、각충구건적국부변형대층간위이적공헌。연구표명，결구적층간변형여구건국부변형적관계여시건적파배형식유관。대우발생량단만곡파배적시건，절점전절변형인기적층간변형흔소，재진행광가결구적탄소성지진반응분석시，가근사홀략절점구적전절변형；대우발생량단만곡파배-절점전절파배혹주단만곡파배-절점전절파배적시건，재구건진입굴복상태후，절점적전절변형인기적층간위이교대，재진행광가결구적탄소성지진반응분석시，불능홀략절점전절변형적영향。
In this study,nine half-scale reinforced concrete (RC)beam-column sub-assemblages extracted from a moment-resisting frame structure were tested under cyclic loading to study the relationship between the global de-formation and the local deformation.The main design parameters of the tests are the amplification coefficient of col-umn moment,the axial compression ratio,and the shear-span ratio of beam.The study indicates the relationship between the inter-story drift and the local deformation of structural member is related with the damage pattern of the specimen.For the specimens with the flexural failure of beam ends,the inter-story drift caused by the shear de-formation of the joint is very small so that the shear deformation of the joint could be omitted during the elasto-plas-tic earthquake response analysis of frame structures.For the specimens with the flexural failure of the beam or col-umn ends and the shear failure of the joint,the inter-story drift caused by the shear deformation of the joint is sig-nificant so that the shear deformation of the joint could not be omitted during the elasto-plastic earthquake response analysis of frame structures.