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張 勁1 王慶揚1,2 胡守營1 王傳甲2
(1 中國石油大學 北京 102249; 2 中國電子工程設計院深圳市電子院設計有限公司 深圳 581031)[摘要] 為了統(tǒng)一ABAQUS混凝土損傷塑性模型與規(guī)范提供的混凝土本構模型,在規(guī)范提供的混凝土本構關系的基礎上引入損傷因子的概念,對混凝土損傷塑性模型本構關系參數的確定方法進行了研究。用各等級混凝土本構關系參數模擬結果與規(guī)范曲線的對比,驗證CDP模型參數的正確性:用一混凝土剪力墻試驗的模擬分析,驗證本構關系參數用于結構分析情況下的可靠性。兩種驗證結果證明,給出的CDP模型參數確定方法是正確的,用該方法確定的參數進行結構模擬分析所得結果是可靠的,并指出了CDP模型的不足。
[關鍵詞] ABAQUS;混凝土損傷塑性模型;剪力墻試驗Parameters Verification of Concrete Damaged Plastic Model of ABAQUS
Zhang Jin1, Wang Qingyangl'2, Hu Shouying1, Wang Chuanjia2
(1 China Univ. of Petroleum, Beijing 102249, China; 2 Shenzhen Electronics Design Inst. Co., Ltd., Shenzhen 518031, China)Abstract: To uniform the concrete damaged plastic model provided by ABAQUS and the concrete constitutive relatiouships provided by the code for concrete structure design, the damaged factors was introduced into the constitutive relationship provided by criterion, and then the method used to determine the parameters of CDP model was studied. To verify the correctness of the parameters of CDP model, the method of contrasting the results extracted from simulation and the criterion curves is used; and to verify the reliability applied to structure simulation, the method of contrasting simulation results and experimental results is chosen. It is approved that the determined method of CDP model parameters is correct and the simulation results of structures using the paramleters determined by the ruethod is reliable.The shortage of CDP model was indicated.
Keywords: ABAQUS;concrete damaged plastic model;shear wall test