孟文清,高小婷,王二成,等. 小剪跨比低层装配墙体破坏模式试验研究[J]. 科学技术与工程, 2020, 20(35): 14556-14561.
mengwenqing,gaoxiaoting,et al.Experimental Study on Failure Mode of Low-rise Assembled Wall with Small Shear-span Ratio[J].Science Technology and Engineering,2020,20(35):14556-14561. |
| 小剪跨比低层装配墙体破坏模式试验研究 |
| Experimental Study on Failure Mode of Low-rise Assembled Wall with Small Shear-span Ratio |
| 投稿时间：2019-11-26 修订日期：2020-08-29 |
| DOI： |
| 中文关键词: 小剪跨比 装配墙体 坐浆连接 破坏模式 抗震性能 |
| 英文关键词:small shear span ratio assembled wall slurry connection failure mode seismic performance |
| 基金项目:基于数字图像技术的煤矸石混合料细观水损机理研究 |
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| 中文摘要: |
| 摘要：为了研究小剪跨比低层坐浆连接装配墙体在地震作用下承载力性能、破坏模式及抗震性能，设计制作了三组剪跨比不同的全尺寸试件，并进行了低周反复荷载试验。通过分析三组试件的破坏过程、滞回曲线、钢筋应变、特征荷载等因素，确定三组试件的破坏模式。对比研究三组试件耗能、延性等性能，得到不同剪跨比试件的抗震性能差异。试验结果表明：随着剪跨比减小，三组小剪跨比试件破坏模式由弯曲破坏变为剪切破坏，刚度增大，延性变差，耗能能力降低。研究结果揭示了小剪跨比低层装配墙体的破坏模式及抗震性能，为此类墙体通过坐浆连接应用在低层建筑中提供了依据。 |
| 英文摘要: |
| [Abstract] In order to study the bearing capacity, failure mode and seismic performance of the low-rise masonry wall with small shear span ratio, three groups of full-scale specimens with different shear span ratio were designed and manufactured, and the low cycle repeated load test was carried out. By analyzing the failure process, hysteresis curve, reinforcement strain, characteristic load and other factors of the three groups of specimens, the failure mode of the three groups of specimens is determined. By comparing the energy consumption and ductility of three groups of specimens, the differences of seismic performance of specimens with different shear span ratio are obtained. The test results show that with the decrease of shear span ratio, the failure mode of three groups of small shear span ratio specimens changes from bending failure to shear failure, with the increase of stiffness, ductility and energy consumption capacity. The research results reveal the failure mode and seismic performance of low-rise assembled wall with small shear span ratio, which provides a basis for the application of such wall in low-rise buildings through slurry sitting connection. |
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