CAJ | 학술논문

随着中国汽车工业的发展,大量废旧轮胎带来的“黑色污染”问题日益显著。提出一种采用废旧轮胎柱(Scrap tire columns,STC)的加筋土结构,并初步探究其作为基础减隔振材料的可行性。通过室内水平循环剪切试验和竖向激振试验研究 STC 加筋砂(STCRS)的水平循环剪切和竖向激振特性。结果表明,最大剪应变为1%时 STCRS 的等效阻尼比未加筋前增加约10%,等效动剪切模量减小20%~25%,水平向减振性能得以提高；STCRS 的竖向加速度衰减呈现出速度快、幅值大的特点,竖向减振效果较未加筋砂显著提高。STC 加筋砂作为基础减振材料是可行的,且为原形废旧轮胎的资源化利用提供新思路。
수착중국기차공업적발전,대량폐구륜태대래적“흑색오염”문제일익현저。제출일충채용폐구륜태주(Scrap tire columns,STC)적가근토결구,병초보탐구기작위기출감격진재료적가행성。통과실내수평순배전절시험화수향격진시험연구 STC 가근사(STCRS)적수평순배전절화수향격진특성。결과표명,최대전응변위1%시 STCRS 적등효조니비미가근전증가약10%,등효동전절모량감소20%~25%,수평향감진성능득이제고；STCRS 적수향가속도쇠감정현출속도쾌、폭치대적특점,수향감진효과교미가근사현저제고。STC 가근사작위기출감진재료시가행적,차위원형폐구륜태적자원화이용제공신사로。
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.