| 桥梁施工控制中高程测点模型系统误差的消除 |
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| 引用本文： | 杨玉龙,张土乔. 桥梁施工控制中高程测点模型系统误差的消除[J]. 公路, 2004, 0(11): 60-62 |
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| 作者姓名： | 杨玉龙 张土乔 |
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| 作者单位： | 浙江大学建筑工程学院,杭州市,310027 |
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| 摘 要： | 为识别误差，将高程测量系统模型分为高程测量模型和高程测点模型。文中对预应力混凝土桥梁悬臂施工控制中主梁高程测点模型的系统误差进行详细分析．并通过采取合理措施进行消除。同时分析指出，施工规范中利用主梁顶面高程作为施工控制的质量标准。理论上可行。而实际获取的顶面高程结果可能无效。建议采用主梁底面高程作为施工控制的质量标准。
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| 关 键 词： | 桥梁施工 高程测点模型 施工控制 系统误差 施工质量 |
| 文章编号： | 0451-0712(2004)11-0060-03 |
Elimination of Elevation System Error of Observation-Point-Model in Bridge Construction Control |
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| YANG Yu long,ZHANG Tu qiao. Elimination of Elevation System Error of Observation-Point-Model in Bridge Construction Control[J]. Highway, 2004, 0(11): 60-62 |
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| Authors: | YANG Yu long ZHANG Tu qiao |
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| Abstract: | The elevation survey system model is divided into two: elevation survey model and elevation observation point model in order to identify error In the paper, the elevation observation point model is analyzed in detail in the prestressed concrete bridge construction control, and effective methods are taken to eliminate error In addition, the top plane elevation of girder is a quality criterion of construction control in Technical Specification for Construction of Highway Bridges and Culverts, the criterion is right in theory but is unavailable in fact The bottom elevation of girder as quality criterion is suggested |
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| Keywords: | construction control elevation observation point model system error |
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