| 1. | Nonlinear fem analysis of rc staggered joint by using apdl language 语言实现钢筋混凝土错层节点非线性分析 |
| 2. | Staggered joints failure is lighter than ordinary joints when the area of beam bars is same in the two types of joints 在梁筋配筋相同的情况下,错层节点的破坏程度较普通节点的轻微。 |
| 3. | 4 . axial compressive ratio is advantageous to seismic behavior of staggered joints . it can improve joints first crashing loads , shear resistance capacity and reduce the sliding displacement of beam bars 轴压比对节点的抗震性能有利,它可以提高节点的初裂荷载、抗剪承载力、减小节点中梁筋的粘结滑移量。 |
| 4. | Sliding displacement of beam longitudinal bars in staggered joints is smaller than in ordinary joints , and the beam bar " overstrength in staggered joints is more serious than in ordinary joints when shear force is equal in the two types of joints 2在节点所受剪力相同的情况下,错层节点中梁纵筋的粘结滑移比普通节点的要小,梁筋的超强更严重。 |
| 5. | 5 . the formulae that the lately issued code for design of concrete structures gb50010 - 2002 offered are applicable for design of staggered joints , considering joints failure not serous and the difference very little between calculative values and experimental values of staggered joints 考虑到梁中纵筋配筋偏低,节点破坏轻微,节点抗剪承载力计算值与实验值相差很小,故可认为新颁布的《混凝土结构设计规范gb50010 - 2002 》给出的公式仍可用于错层节点的计算。 |
| 6. | 3 . the performance of staggered joints is similar to ordinary joints ' , not only about the plump of hysteresis curves , energy dissipation , but also the time , the rapidity of shear resistance decrease and the degree of joints stiffness degradation . only the displacement ductility coefficient in staggered joints is little smaller than in ordinary joints 错层节点的抗震性能比普通节点的抗震性能基本差不多,不管是从梁端滞回曲线的饱满程度、耗能系数,还是从节点承载力降低的早晚、快慢、节点刚度退化的程度上来说,都是这样,唯有错层节点的位移延性系数,要比普通节点的稍差一些。 |
| 7. | With the diversification of people ' s esthetic sentiment to upholstery , the staggered reinforced concrete frames are used more and more widely . specifications for staggered joint are n ' t contained in code for design of concrete structures gb50010 - 2002 , so , the research on shear transfer mechanisms ; seismic behavior and shear resistance of staggered joints is urgent 随着人们建筑室内审美情趣的日益多样化,错层框架结构在国内应用越来越广泛,目前的《混凝土结构设计规范gb50010 - 2002 》中还没有针对错层节点的专门规定,因此,对钢筋混凝土错层节点的传力机理、抗震性能和抗剪承载力的研究就显得尤为迫切。 |