地震工程学报Issue(2)：494-499,6.DOI:10.3969/j.issn.1000-0844.2015.01.0494
STC 加筋砂水平循环剪切与竖向激振特性试验研究
Experimental Study on Horizontal Cyclic Shear and Vertical Excitation Behavior of STC Reinforced Sand
摘要
Abstract
With the rapid development of the automotive industry in China,“black pollution”caused by scrap tires has become increasingly significant.A reinforcing earth structure using scrap tire columns (STC)is presented in the current research.Horizontal cyclic shear tests and vertical excitation tests were conducted to validate the effectiveness of scrap tire columns reinforced sand (STCRS)on horizontal and vertical damping.The results of the horizontal shear tests show that when the maximum shear strain is 1%,the equivalent damping ratio of STCRS increased by about 10% more than the sand itself,and the shear modulus decreased by 20%~25%,improving the horizontal damping performance.In the vertical vibration tests,the acceleration attenuation showed characteristics of fast speed and large amplitude,indicating that STCRS had a significant damping effect compared to unreinforced sand.STC reinforced sand as a material for seismic isola-tion is feasible,and is also a new use for scrap tire resources.关键词
废旧轮胎/砂/水平循环剪切/竖向激振/减隔振/环境岩土Key words
scrap tires/sand/horizontal cyclic shear/vertical excitation/vibration absorption and isolation/environmental geotechnology分类
建筑与水利引用本文复制引用
鲁洋,刘斯宏,张雨灼,徐小东..STC 加筋砂水平循环剪切与竖向激振特性试验研究[J].地震工程学报,2015,(2):494-499,6.基金项目
中央高校基本科研业务费专项资金(2014B36614) （2014B36614）
江苏省普通高校研究生科研创新计划项目(KYLX_0472) （KYLX_0472）
国家自然科学基金面上项目(51379066) （51379066）
