| 大型预制箱梁节段3层堆存安全性及堆存规则研究 |
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| 引用本文： | 刘亚东.大型预制箱梁节段3层堆存安全性及堆存规则研究[J].公路交通技术,2014(1):102-106. |
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| 作者姓名： | 刘亚东 |
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| 作者单位： | [1]重庆交通大学土木建筑学院,重庆400074 [2]中交二航局第二工程有限公司,重庆401121 |
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| 摘 要： | 以苏通长江公路大桥引桥75m跨径预应力混凝土箱梁节段施工为依托，参照JTG／TF50—2011《公路桥涵施工技术规范》建议的预制拼装桥梁节段堆存规则，应用Ansys软件建立大型预制箱梁节段有限元模型，计算并分析预制节段在3层堆存条件下的应力分布和抗裂安全性，提出大型预制箱梁节段3层堆存的合理规则，可供今后类似工程施工参考。
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| 关 键 词： | 大型预制箱梁节段 3层堆存 应力分布 安全性 堆存规则 |
Research on Safety of 3-layer Stockpiling and Stockpiling Rules of Large-scale Prefabricated Box-girder Segments |
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| LIU Yadong.Research on Safety of 3-layer Stockpiling and Stockpiling Rules of Large-scale Prefabricated Box-girder Segments[J].Technology of Highway and Transport,2014(1):102-106. |
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| Authors: | LIU Yadong |
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| Abstract: | Based on construction of 75m span prestressed concrete box-girder segments of approach bridge of Sutong Yangtze River Highway Bridge and by reference to the stockpiling rules of prefabricated assembly bridge segments recommended in JTG/T F50-2011 “Technical Specifications for Construction of Highway Bridges and Culverts”, this paper applies Ansys software to establish the finite element model of large-scale prefabricated box-girder segments, calculates and analyzes stress distribution and anti- crack safety of prefabricated segments under 3-layer stockpiling condition, and proposes reasonable rules for 3-layer stockpiling of large-scale prefabricated box-girder segments to provide a reference for similar projects in the future. |
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| Keywords: | large - scale prefabricated box - girder segments 3 - layer stockpiling stress distribution safety stockpiling rules |
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