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| 污水沉淀池无粘结预应力技术研究与应用 | |
| 引用本文： | 孔祥荣,席江,赵顺波.污水沉淀池无粘结预应力技术研究与应用[J].华北水利水电学院学报,2000,21(2):27-30,45. |
| 作者姓名： | 孔祥荣 席江 赵顺波 |
| 作者单位： | 1. 郑州市污水净化有限公司,技术处,河南,郑州,450016 2. 广东省肇庆市水利水电勘测设计院,基建室,广东肇庆,526060 3. 华北水利水电学院,土木工程系,河南,郑州,450045 |
| 基金项目： | 水利部水利科技基金，SZ9422， |
| 摘 要： | 环形无粘结预应力技术是近 1 0a逐步发展并加以推广应用的新技术 .结合日处理污水能力 4× 1 0 5 t的大型污水处理工程中污水初沉池和二沉池的预应力混凝土施工 ,通过三维混凝土有限元分析确定了池壁环向预应力钢绞线的张拉方法 .开展了环形无粘结预应力钢绞线孔道摩擦系数和偏差系数的现场试验研究 ,对钢绞线的张拉理论伸长值与实测值进行了对比分析 .同时对沉淀池池壁孔口预应力钢绞线的布置及钢绞线的锚固防腐等工程经验进行了分析总结 .对同类结构的理论研究和工程实践具有重要的参考价值 |
| 关 键 词： | 预应力混凝土 环形 无粘结 沉淀池 有限元分析 |
Research and application of unbonded prestress technology in sewage sedimentation tank |
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| KONG Xiang-rong,Xi Jiang,Zhao Shun-bo.Research and application of unbonded prestress technology in sewage sedimentation tank[J].Journal of North China Institute of Water Conservancy and Hydroelectric Power,2000,21(2):27-30,45. | |
| Authors: | KONG Xiang-rong Xi Jiang Zhao Shun-bo |
| Abstract: | It is a new technology of the ringlike unbonded prestress gradually developed and applied in recent 10 years. In this paper, combined with the prestressed concrete construction of the sedimentation tank in large sewage treatment plant with capacity of 400 thousand tons one day, the tension method of the ringlike unbonded strands was determined by three-dimensional concrete finite element analysis. The in-situ test was carried out to study the coefficients related to the friction of strand duct, and the theoretical values of strand elongation contrasted to the tested are analyzed. Meanwhile, the strands arrangement near the hole on the tank wall and the protection method of anchorage are also summarized. There are important values to the practices of similar construction and to the developments of ringlike prestress technology. |
| Keywords: | prestressed concrete ringlike unbonded sewage sedimentation tank finit element analysis |
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