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本文是对我院3m×4m地震模拟振动台的台面参数和系统技术指标进行的测试分析。测得了台面的摇摆频率、前4阶弯曲频率及振型。系统测试中的各项指标和允许偏差均参照国内有关专家草拟的国标《液压振动台技术条件》(初稿)。测试分析结果表明各项指标满足使用的要求。
This article is a test analysis of the bench parameters and system technical indicators of the 3m×4m earthquake shaking table in our institute. Measured the table swing frequency, the first four-order bending frequency and vibration mode. The indicators and allowable deviations in the system test are based on the national standard “Technical conditions of hydraulic vibrator” drafted by relevant domestic experts (first draft). Test analysis results show that the indicators meet the requirements for use.