| 20m简支T梁后张有粘结预应力加固计算分析 |
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| 引用本文： | 张璞.20m简支T梁后张有粘结预应力加固计算分析[J].交通标准化,2010(1):68-71. |
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| 作者姓名： | 张璞 |
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| 作者单位： | 河北远洲工程咨询有限公司,河北,石家庄,050021 |
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| 摘 要： | 针对沙河大桥病害机理，对其加固设计方案加以介绍，认为有粘结预应力桥梁的加固方式既能起到增大截面尺寸的加固效果，又具有一般体外预应力提高承载能力的作用。同时，使用最新颁布的《桥梁加固设计规范》（JTG/T J22—2008）对该加固方式进行的理论计算，可为桥梁的加固设计与计算提供有益的技术资料。
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| 关 键 词： | T梁桥 后张有粘结 预应力 裂缝宽度 |
20m Simple-supported T Beam Post-tensioning Prestress Concrete with Bond Reinforcement Calculation Analysis |
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| ZHANG Pu.20m Simple-supported T Beam Post-tensioning Prestress Concrete with Bond Reinforcement Calculation Analysis[J].Communications Standardization,2010(1):68-71. |
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| Authors: | ZHANG Pu |
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| Institution: | Hebei Yuanzhou Engineering Consulting Co./a>;Ltd./a>;Shijiazhuang 050021/a>;China |
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| Abstract: | In allusion to Shahe Bridge disease mechanism,the reinforcement scheme is introduced. The bridge with bonding prestress can not only widen the cross-section dimension,but also increase bearing capacity like external prestress. Meanwhile,the newly promulgated Bridge Reinforcement and Design Norm (JTG/T J22-2008) is referred to calculate this method. It can provide technical material for reinforcement and calculation of bridges. |
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| Keywords: | T beam bridge post-tesnsioning with bond prestress crack width |
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