| 考虑结构长期性能多梁式预应力混凝土斜梁桥合理施工方法研究 |
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| 引用本文： | 史梁,王积鑫,耿鑫.考虑结构长期性能多梁式预应力混凝土斜梁桥合理施工方法研究[J].北方交通,2008(6):138-140. |
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| 作者姓名： | 史梁 王积鑫 耿鑫 |
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| 作者单位： | 1. 黑龙江省公路勘察设计院,哈尔滨,150080
2. 辽宁乾成工程设计咨询有限公司,沈阳,110003 |
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| 摘 要： | 采用梁格法建立多梁式预应力混凝土斜梁桥空间有限元分析模型,通过模拟不同施工过程进行计算分析,发现采用不同施工方法实现的结构成桥后的内力和变形差异很大;支座反力的分布也有较大的差别.成桥后钢束二次效应对结构的内力和反力的影响也较大,因此在设计选择斜粱桥施工方法时应引起注意.
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| 关 键 词： | 长期性能 梁格法 斜梁桥 施工方法 |
Research on Rational Construction Methods for Prestressed Concrete Oblique Beam Bridge of Multi-Beam and Long-Term of Structure Performance |
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| Authors: | SHI Liang and otherss |
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| Institution: | SHI Liang and otherss |
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| Abstract: | The paper establishes by beam grillage the analytical model of space finite element for oblique beam bridge of multibeam prestressed concrete.Through calcuative analysis of simulating the different process of construction,it's found that structural bridges completed by different constructions,their differences in internal force and deformation are quite big,the distrubutions of end reactions have also bigger difference between them,the influence of reinforclment tendon's quadratic effect on internal force and reaction is larger too.Thereby,construction methods should be noticed when the oblique beam bridge is designed. |
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| Keywords: | Long-term performance of structure Beam grillage Oblique beam bridge construction methods |
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