同济大学学报（自然科学版）2025，Vol.53Issue(10)：1499-1507,9.DOI:10.11908/j.issn.0253-374x.24183
层间粘结废旧轮胎隔震垫水平力学性能设计值取值
Design Values for Horizontal Mechanical Properties of Layer-Bonded Scrap Tire Rubber Pads
摘要
Abstract
In this paper,based on the proposed scrap tire pads,the horizontal mechanical properties tests and finite element analysis are conducted under the design compressive stresses of P=3 MPa,P=4 MPa,and P=5 MPa,to analyze the laws of the changes of the horizontal equivalent stiffness,post-yield stiffness and the equivalent damping ratio with the design compressive stresses and the second shape coefficients,and to determine the specific methods of the values of the three.Horizontal mechanical properties test results show that:the horizontal equivalent stiffness and post-yield stiffness of layer-bonded scrap tire rubber pads(LBSTP)increase with the increase of the design compressive stress and the second shape coefficient,and the existence of the lower limit values of the two can be determined to be 0.5 kN·mm-1 and 0.37 kN·mm-1,respectively.Meanwhile,the values of the two show the law of fan distribution.The variation of the equivalent damping ratio has no obvious relationship with the design compressive stress and the second shape factor,but its value can be determined as between 0.09 and 0.15.According to the value law of horizontal equivalent stiffness and post-yield stiffness of LBSTP,the finite element model of LBSTP is developed using ABAQUS,and the calculation formula for the sector of value taken by horizontal equivalent stiffness and post-yield stiffness is established for the LBSTP.关键词
层间粘接废旧轮胎隔震垫(LBSTP)/水平等效刚度/屈服后刚度/等效阻尼比/设计压应力/第二形状系数Key words
layer-bonded scrap tire rubber pads(LBSTP)/horizontal equivalent stiffness/post-yield stiffness/equivalent damping ratio/compressive design stress/second shape factor分类
建筑与水利引用本文复制引用
张广泰,陈锐,张军福,赵建新,盛瑞..层间粘结废旧轮胎隔震垫水平力学性能设计值取值[J].同济大学学报（自然科学版）,2025,53(10):1499-1507,9.基金项目
新疆维吾尔自治区科技厅重点项目(2021D01D07) （2021D01D07）
国家自然科学基金(52268035) （52268035）
