| 改善预应力闸墩施工程序的有限元分析 |
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| 引用本文： | 孙志恒,高延伟,聂林妹.改善预应力闸墩施工程序的有限元分析[J].现代电力,1993(4). |
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| 作者姓名： | 孙志恒 高延伟 聂林妹 |
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| 作者单位： | 北京动力经济学院，建设部，华北水电学院北京研究生部 |
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| 摘 要： | 分析了预应力闸墩在主要荷载(弧门水推力和锚束预应力)作用下应力分布的基础上,从改善传统的施工程序入手,提出了在浇筑混凝土锚块时于锚块中间预留施工缝,待锚束张拉完毕后,再将施工缝回填,以便增加锚束在闸墩表面产生的预压应力。文章采用有限元计算手段对该方案进行了分析研究。结果表明,预应力闸墩采用预留施工缝后,预应力锚束的预压效果显著提高。
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| 关 键 词： | 预应力闸墩 预留缝 有限元计算 |
A STUDY ON IMPROVING THE CONSTRUCTION PROCEDURE OF A PRESTRESSED PIER BY USING THE FINITE ELEMENT ANALYSIS |
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| Sun Zhiheng Gao Yanwei Nie Linmei.A STUDY ON IMPROVING THE CONSTRUCTION PROCEDURE OF A PRESTRESSED PIER BY USING THE FINITE ELEMENT ANALYSIS[J].Modern Electric Power,1993(4). |
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| Authors: | Sun Zhiheng Gao Yanwei Nie Linmei |
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| Affiliation: | Sun Zhiheng Gao Yanwei Nie Linmei |
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| Abstract: | Based on the analyzing the stress distribution on the prestressed pier,and caused by the maid loads,the paper put forward a method to present a construction joint in middle of the concret anchor block during its casting.In order to have the precompress stress on the pier surface increased,the finite element analysis is employed.It is proved by the re- sult of calculation that the precompressing effect on the anchor cable is obviously increased when preleaving the joint.The method is worth to further study and to spread its applica- tion. |
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| Keywords: | prestressed pier preleaving joint finite element calcutation |
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