In slab column-shear wall structures,both the whole structure′s seismic behavior and failure mode are greatly influenced by the distribution of horizontal seismic forces between slab-column and shear wall.In this pap...In slab column-shear wall structures,both the whole structure′s seismic behavior and failure mode are greatly influenced by the distribution of horizontal seismic forces between slab-column and shear wall.In this paper,a pushover analysis of topical slab column-shear wall structure was carried out,the seismic shear force that the slab-column and shear wall should undertake was worked out,the influences of plastic internal force redistribution and structure stiffness characteristic value on horizontal seismic distribution were studied and the calculation formula was given.The analysis results showed that with the yield of the shear walls,the story shear force was undertaken by slab-columns correspondingly increased while with the decrease of characteristic value of stiffness of a structure,and the horizontal seismic force was undertaken by slab-columns correspondingly decreased.According to the code,the design of horizontal force distribution may be cause insecurity problems,so it is necessary to give the distribution law of horizontal seismic forces in slab-column shear wall structures as the supplement to the corresponding regulation of the Code.展开更多
加钢筋体复合锚杆在土遗址载体锚固得到了较为成功的应用,但研究该类型锚杆机制刚刚起步。选择交河故城开展了夹Ф22 mm钢筋复合体锚杆现场锚固测试,包括锚固性能测试和锚杆各界面层应变监测。锚固性能试验表明,3m长复合锚杆极限锚固力...加钢筋体复合锚杆在土遗址载体锚固得到了较为成功的应用,但研究该类型锚杆机制刚刚起步。选择交河故城开展了夹Ф22 mm钢筋复合体锚杆现场锚固测试,包括锚固性能测试和锚杆各界面层应变监测。锚固性能试验表明,3m长复合锚杆极限锚固力可达190 k N,而且杆体表现出较强塑性变形。锚杆各界面层应变监测结果表明,钢筋-复合材料界面层轴向应变远大于其他界面层,锚固失效在该层;由于杆体的非均直性,楠竹-复合材料界面表现出轴向应变的非规律性,局部出现受压状态;楠竹-浆体界面剪应变与荷载变化一致,在较高荷载下出现剪应变向锚固末端的传递特征;鉴于杆体的多圈层构造,受力过程中出现明显的横向传递和剪胀特征。其研究成果可为复合锚杆的优化与工艺完善奠定基础。展开更多
文摘In slab column-shear wall structures,both the whole structure′s seismic behavior and failure mode are greatly influenced by the distribution of horizontal seismic forces between slab-column and shear wall.In this paper,a pushover analysis of topical slab column-shear wall structure was carried out,the seismic shear force that the slab-column and shear wall should undertake was worked out,the influences of plastic internal force redistribution and structure stiffness characteristic value on horizontal seismic distribution were studied and the calculation formula was given.The analysis results showed that with the yield of the shear walls,the story shear force was undertaken by slab-columns correspondingly increased while with the decrease of characteristic value of stiffness of a structure,and the horizontal seismic force was undertaken by slab-columns correspondingly decreased.According to the code,the design of horizontal force distribution may be cause insecurity problems,so it is necessary to give the distribution law of horizontal seismic forces in slab-column shear wall structures as the supplement to the corresponding regulation of the Code.
文摘加钢筋体复合锚杆在土遗址载体锚固得到了较为成功的应用,但研究该类型锚杆机制刚刚起步。选择交河故城开展了夹Ф22 mm钢筋复合体锚杆现场锚固测试,包括锚固性能测试和锚杆各界面层应变监测。锚固性能试验表明,3m长复合锚杆极限锚固力可达190 k N,而且杆体表现出较强塑性变形。锚杆各界面层应变监测结果表明,钢筋-复合材料界面层轴向应变远大于其他界面层,锚固失效在该层;由于杆体的非均直性,楠竹-复合材料界面表现出轴向应变的非规律性,局部出现受压状态;楠竹-浆体界面剪应变与荷载变化一致,在较高荷载下出现剪应变向锚固末端的传递特征;鉴于杆体的多圈层构造,受力过程中出现明显的横向传递和剪胀特征。其研究成果可为复合锚杆的优化与工艺完善奠定基础。
