| 客专大跨预应力混凝土连续梁悬臂施工控制 |
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| 引用本文： | 张宁军.客专大跨预应力混凝土连续梁悬臂施工控制[J].城市道桥与防洪,2011(3):80-83,162. |
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| 作者姓名： | 张宁军 |
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| 作者单位： | 中铁二十一局集团第四工程有限公司,青海西宁,810000 |
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| 摘 要： | 该文介绍了高速铁路客运专线大跨度预应力混凝土连续梁挂篮悬臂浇筑法施工时梁体的线形控制.利用数值模拟的方法,分别计算出了桥梁在恒载作用下的累积位移、活载位移,以及预拱度的设置.通过误差分析和施工状态预测对计算模型进行修正,使梁体的线形控制结果达到设计要求.
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| 关 键 词： | 客专大跨连续梁 施工监控 线性 应力监测 |
Control of Long-span Pre-stressed Concrete Continuous Beam Cantilever Construction of Passenger Transportation Special Railway |
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| Zhang Ningjun.Control of Long-span Pre-stressed Concrete Continuous Beam Cantilever Construction of Passenger Transportation Special Railway[J].Urban Roads Bridges & Flood Control,2011(3):80-83,162. |
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| Authors: | Zhang Ningjun |
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| Institution: | Zhang Ningjun |
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| Abstract: | This paper introduces the linear control of the beam in the construction of long-span pre-stressed concrete continuous beam of the high-speed railway passenger transportation special line by the travelling form cantilever pouring method. The method of numerical simulation to be used separately calculates the cumulative displacement and live-load displacement under the constant loads of bridge as well as the settings of camber. The error analysis and the construction status forecast can amend the calculation... |
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| Keywords: | long-span continuous beam of passenger transportation special railway construction monitoring control linearity stress monitoring |
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