| 安全壳极限承载力中预应力的数值模拟 |
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| 引用本文： | 孟剑,杨景龙.安全壳极限承载力中预应力的数值模拟[J].工业建筑,2011(Z1):127-131. |
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| 作者姓名： | 孟剑 杨景龙 |
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| 作者单位： | 中国核电工程有限公司建筑所; |
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| 摘 要： | 某核电厂的安全壳采用了预应力混凝土结构,其中预应力钢束布置形式比较复杂。结合安全壳结构极限承载力项目,根据安全壳预应力钢束的特殊布置形式,对钢束的几何形状进行研究,推导出了钢束的空间几何曲线方程,采用MATLAB对预应力钢束进行了数值计算,完成了ABAQUS有限元模型中钢束的定位和建模工作,计算每根钢束各个位置的预应力值,并完成了加载工作。通过已有的数据可以验证,钢束定位和预应力计算结果具有较高的精度。所述的方法对于安全壳的预应力设计和施工也有较大的指导意义。
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| 关 键 词： | 安全壳 极限承载力 预应力数值模拟 张拉伸长值计算 |
THT PRESTRESS NUMERICAL SIMULATION IN THE RESEARCH OF THE ULTIMATE BEARING CAPABILITY OF CONTAINMENT OF NUCLEAR POWER PLANT |
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| Meng Jian Yang Jinglong.THT PRESTRESS NUMERICAL SIMULATION IN THE RESEARCH OF THE ULTIMATE BEARING CAPABILITY OF CONTAINMENT OF NUCLEAR POWER PLANT[J].Industrial Construction,2011(Z1):127-131. |
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| Authors: | Meng Jian Yang Jinglong |
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| Affiliation: | Meng Jian Yang Jinglong(China Nuclear Power Engineering Co.,Ltd.Beijing 100840,China) |
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| Abstract: | The prestressed concretes structures have been used in the containment of some nuclear power plants.And the location of prestressed tendon is very complicated.In the research on the ultimate bearing capability of containment,the special location of prestressed tendon is studied,and the geometry curve equation of prestressed tendon is deduced.The location and prestress data of prestressed tendon is calculated by MATLAB.Then,the model of prestressed tendon is built and the prestress load is applied to the ABA... |
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| Keywords: | containment ultimate bearing capacity mumerical sinulation of prestress calculation of elongation value due to tension |
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