CAJ | 학술논문

针对实际监测量的小子样分布类型可能不完全符合典型的分布函数，而最大熵密度函数可以直接根据样本的数字特征值进行计算，为此，选取经历过二期冷却的应变计组实测应变获得的最大主拉应力作为子样本，采用最大熵法计算获得子样本的最大熵概率密度函数，根据混凝土坝体已经抵御经历过拉应力的能力，来评估和预测抵御可能发生拉应力的能力，据此采用小概率事件法估计了混凝土实际抗拉强度，实例分析表明，最大熵密度函数包含的主观成分少，由此估计的混凝土抗拉强度和极限拉伸变形更可信。
침대실제감측량적소자양분포류형가능불완전부합전형적분포함수，이최대적밀도함수가이직접근거양본적수자특정치진행계산，위차，선취경력과이기냉각적응변계조실측응변획득적최대주랍응력작위자양본，채용최대적법계산획득자양본적최대적개솔밀도함수，근거혼응토패체이경저어경력과랍응력적능력，래평고화예측저어가능발생랍응력적능력，거차채용소개솔사건법고계료혼응토실제항랍강도，실례분석표명，최대적밀도함수포함적주관성분소，유차고계적혼응토항랍강도화겁한랍신변형경가신。
For small sample distribution type of the actual monitoring quantities may not fully comply with the typical distribution function ,while the maximum entropy density function can be calculated directly based on the numerical characteristic values of sam‐ples .Therefore ,the measured maximum principal tensile stress of strain gauge group under the second‐stage cooling was chosen as a sub‐sample ,the probability density function of the maximum entropy of the sub‐sample was obtained by maximum entropy method , the ability against the tensile strength that could occur which was evaluated and predicted based on the ability of the concrete dam to withstand and experience tensile stress ,so the small probability event method was applied to estimate the actual tensile strength of concrete .It is demonstrated by engineering practice that the less subjective composition w hich the maximum entropy density function contains ,thus the estimate of the tensile strength and ultimate tensile strain for concrete become more credible .