摘要
针对新研制的多功能共振柱讕验机常规土类试验,发展此类仪器的试验可靠性分析理论,建立一套检验自身可靠性的分析方法傌技术,包括试验误差分析、试验定量考核、土工试验等多种技术手段。首先建立了共振柱仪动剪切模量误差、应叐误差和阻尼比误差的分析公式,得到了几种主要影响因素及其对试验误差影响程度的新认识。同时,通过若干已知动剪切模量且频率和土频率相接近的钢杆和铝杆试件的自振和共振试验,定量上验证该仪器常规试验结果的可靠性;通过砂土和原状粘土常规试验,定性上检验土工试验结果的合理性。通过对新研制的多功能共振柱试验机的常规试验功能进行可靠性的自身检验,所有试验结果是令人满意和可靠的,结果符合现有规律的认识。
The reliability theory of routine tests for the fixed-free resonant column device is developed and the analytical method and technique of reliability is presented, including the experimental error, experimental quantitative assess and soil test. First, the error equations of dynamic shear modulus, strain and damping ratio are obtained by the root mean square method and the affecting factors and affecting degree of error are analyzed. Then, the reliability of the resonant column device is quantitatively analyzed by resonant and free tests of steel sample and aluminum sample of which the dynamic shear modulus is known and the frequency is near to soil~. The rationality of soil test results is qualitatively analyzed by routine tests of sand and clay. Then the reliability of routine tests for a new multi-purpose resonant column device is successfully investigated according to the method and technique. The tests indicate that the results are agreeable and reliable.
出处
《地震工程与工程振动》
CSCD
北大核心
2006年第5期258-263,共6页
Earthquake Engineering and Engineering Dynamics
基金
地震科学联合基金项目(102033)
关键词
多功能共振柱试验机
常规试验
可靠性
误差分析
动剪切模量
multi-purpose resonant column device
routine tests
reliability
error analysis
dynamic shear modulus
