文章摘要

文章信息/Info

作者:: 王永志¹; 王体强¹; 王海²; 汤兆光¹; (1.中国地震局工程力学研究所地震工程与工程振动重点实验室,黑龙江哈尔滨 150080; 2.济南大学水利与环境学院,山东济南 250022)

Author(s):: WANG Yongzhi¹; WANG Tiqiang¹; WANG Hai²; TANG Zhaoguang¹; (1.Key Laboratory of Earthquake Engineering and Engineering Vibration,Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,Heilongjiang,China)(2.School of Water Conservancy and Environment,University of Jinan,Jinan 250022,Shandong,China)

摘要:: 回顾并总结我国土工离心机的发展历程、现状及趋势,概括了现役设备的性能指标和功能特点。以中国地震局工程力学研究所DCIME-40-300土工离心机为例,阐述了针对地震韧性工程研制土工离心机的关键技术,包括土工离心机、离心振动台、主机室冷却系统、降雨模拟系统、冻融循环系统等,给出了解决关键难题的基本思路与总体设计方案。针对离心振动台性能评价需求,提出了离心振动台性能测试方法与评价指标,并给出了若干性能测试结果。结果显示:正弦波输入时,平均波形失真度约为10.7%; 地震波输入时,平均幅值误差约为4.44%,平均频谱面积误差约为5.89%,均优于相关行业标准规定的技术指标。

Abstract:: The development history and construction status of China's geotechnical centrifuges are reviewed,and the performance indicators and functional characteristics of existing equipment are summarized.Taking the DCIME-40-300 power centrifuge of the Institute of Engineering Mechanics of the China Earthquake Administration as an example,the key technologies for developing geotechnical centrifuges for seismic toughness are described,including geotechnical centrifuge,centrifugal shaking table,cooling system of main engine room,rainfall simulation system,freeze-thaw cycle system,etc.The basic design plan or main points to solve the key problems are given.Aiming at the performance evaluation requirements of centrifugal shaking table,a performance testing scheme and evaluation index of centrifugal shaking Tab.are proposed,and several test results are given.The results show that when the sine waves load,the average waveform distortion is about 10.7%.When seismic waves load,the average amplitude error is about 4.44%,and the average spectral area error is about 5.89%.All are superior to the technical indicators stipulated by relevant industry standards.