【作者】 徐仲杰； 王柏生；

【Author】 XU Zhong-jie, WANG Bai-sheng (College of Civil Engineering And Architecture, Zhejiang University, Hangzhou 310027, China)

【机构】 浙江大学建筑工程学院；

【摘要】 现场实测列车引起地面振动加速度时程记录。借助单源模糊数学,以连续测得的20次数据,经变换后的加速度有效值作为统计,得到地面振动的隶属函数。建立拟建建筑物三维有限元模型,以最大有效值和最小有效值对应的加速度功率谱曲线作为基底输入,求得楼层振动的加速度功率谱。最后得到加速度振级,利用《城市区域环境振动标准》(GBI0070-88)对列车引起建筑物振动做预测。更多还原

【Abstract】 The train-induced ground vibrations in the site are recorded. Membership function of ground vibration is obtained from root-mean-square quantity of ground vibrations in virtue of mono-source fuzzy number. There-dimensional finite element model is developed, using acceleration power spectrum corresponding maximal and minimal root-mean-square quantity as input excitations, the floor vibration acceleration power spectrum can be obtained. At last the vibration acceleration level is gained. The quantitative of the vibration levels in proposed buildings is made based on the Chinese national standard (GBI0070-88).更多还原