| 先张预应力空心板反拱度的计算及影响反拱度变化的因素分析 |
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| 引用本文： | 陈杰.先张预应力空心板反拱度的计算及影响反拱度变化的因素分析[J].黑龙江交通科技,2008,31(1):74-76. |
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| 作者姓名： | 陈杰 |
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| 作者单位： | 河北省交通规划设计院 |
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| 摘 要： | 通过对青银高速公路“308国道跨线桥”24 m先张法预应力混凝土空心板的反拱度的计算与实际测量,分析了反拱度理论计算值与实测测量值之间产生差异的因素,为空心板梁施工中的反拱度控制提供科学依据。
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| 关 键 词： | 先张板 反拱度 控制应力 龄期 |
| 文章编号： | 1008-3383(2008)01-0074-03 |
| 修稿时间： | 2007年11月25 |
The Calculation of the Inverted Camber of the Pretensioned Prestress Voided Slab and the Analysis of the Factorsthat Influent on the Change of the Inverted Camber |
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| CHEN Jie.The Calculation of the Inverted Camber of the Pretensioned Prestress Voided Slab and the Analysis of the Factorsthat Influent on the Change of the Inverted Camber[J].Communications Science and Technology Heilongjiang,2008,31(1):74-76. |
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| Authors: | CHEN Jie |
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| Institution: | CHEN Jie (Transportation Planning and Design Institute of Hebei Province) |
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| Abstract: | In this paper,the calculation and the actual measurement of the inverted camber on the 24m pretensioned prestress voided slab of the overpass bridge in 308 national highway of Qingyin speedway was carried.The factors that influent on the discrepancy between the measured values and the values in theory are analysed.This paper offers scientific basis for the inverted camber control in the hollow slab bridge construction. |
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| Keywords: | the pretensioned prestress voided slab inverted camber control stress age |
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