| 用预应力处理连续结合梁中负弯矩区的探讨 |
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| 引用本文： | 张俭.用预应力处理连续结合梁中负弯矩区的探讨[J].工程质量,2009,27(10):65-68. |
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| 作者姓名： | 张俭 |
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| 作者单位： | 苏州市建设工程质量监督站,江苏,苏州,215002 |
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| 摘 要： | 连续结合梁中负弯矩区混凝土桥面板处理不当会导致开裂，从而影响结构的承载能力和耐久性。通过对连续结合梁的结构分析，介绍了其负弯矩区的处理方法，并结合工程实例，详细阐述了对连续结合梁施加预应力的处理措施。实践证明，采用张拉高强钢筋，必要时辅以支座标高调整法施加预应力处理连续结合梁中负弯矩区比较合理。
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| 关 键 词： | 连续结合梁 负弯矩 预应力 |
Discussion on Prestress Dealing with Negative Moment Area in the Continuous Combination Bearn |
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| ZHANG Jian.Discussion on Prestress Dealing with Negative Moment Area in the Continuous Combination Bearn[J].Quality of Civil Engineering and Construction,2009,27(10):65-68. |
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| Authors: | ZHANG Jian |
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| Affiliation: | ZHANG Jian (Suzhou Construction Quality Supervision Station, Suzhou, Jiangsu, 215002, China) |
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| Abstract: | Dealing with negative moment area in the continuous combination beam incorrectly will lead to cracking, and also affects bearing capacity and sustainability of the structure. Analyzing the structure of the continuous combination beam, treating process of the negative moment area is introduced. Based on project practice, treating process of the continuous combination beam bearing prestress. Practice shows that it is rational to adopt high strength stretched steel aided with method of adjusting bearing level and prestress dealing with negative moment area. |
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| Keywords: | continuous combination beam negative moment prestress |
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