钢管混凝土拱桥桥面平整度评价

吴庆雄; 陈宝春

doi:10.19818/j.cnki.1671-1637.2010.04.004

钢管混凝土拱桥桥面平整度评价

doi: 10.19818/j.cnki.1671-1637.2010.04.004

福州大学土木工程学院, 福建福州 350108

基金项目:

国家自然科学基金项目 50808047

福建省高等学校新世纪优秀人才支持计划项目 XSJRC2007-12

详细信息

作者简介:
吴庆雄(1973-), 男, 福建南靖人, 福州大学副研究员, 工学博士, 博士后, 从事桥梁与结构工程研究

中图分类号: U448.34
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- 被引次数: 0
出版历程
- 收稿日期: 2009-02-13
- 刊出日期: 2010-08-25

Deck roughness evaluation of concrete-filled steel tubular arch bridge

School of Civil Engineering, Fuzhou University, Fuzhou 350108, Fujian, China

More Information

Author Bio:
WU Qing-xiong (1973-), male, associate researcher, PhD, +86-591-87892620, wuqingx@fzu.edu.cn

摘要

摘要: 分别采用激光连续式路面平整度仪与水准仪对福鼎桐山大桥的桥面平整度进行了测量, 采用最大熵谱法进行桥面平整度的频谱分析, 获知了使用激光连续式路面平整度仪测量的优势。对福建省内多座钢管混凝土拱桥的桥面平整度进行了采集和分析, 进一步验证了桥面平整度功率谱法与国际平整度指数法的关系方程式的正确性; 从主梁型式、主拱跨径、使用年数等方面对钢管混凝土拱桥桥面平整度进行了分析。发现桥面平整度指数随使用年数的递增呈指数形式增大, 据此提出了桥面状况与使用年数的关系式, 可简便地进行钢管混凝土拱桥桥面状况的预估。
- 桥梁工程 /
- 钢管混凝土拱桥 /
- 桥面平整度 /
- 频、时域分析
Abstract: The deck roughness of Tongshan Bridge in Fuding was measured by using leveler and laser continuous pavement profilometer respectively.Maximum entropy method(MEM)for the spectrum analysis of deck roughness was adopted, and the advantage of laser continuous pavement profilometer was obtained.The deck roughnesses of several concrete-filled steel tubular(CFST)arch bridges were collected and analyzed, and the presented relationship between two main methods, which are power spectral density(PSD)method and international roughness index(IRI)method, was configured.The deck roughnesses were evaluated from main beam type, main span of arch and service years.It is found that IRI value with exponential form increases following service years.Therefore, the relationship between deck roughness and service years is presented, which can simply predict the deck condition of CFST arch bridge.
- bridge engineering /
- CFST arch bridge /
- deck roughness /
- frequency and time domain analysis

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图 1 激光连续式路面平整度仪

Figure 1. Laser continuous pavement profilometer

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图 2 桥面平整度曲线

Figure 2. Roughness curve of deck

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图 3 桥面功率谱

Figure 3. PSD curves of deck

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图 4 桥面平整度功率谱的回归曲线

Figure 4. Regression curves of deck roughness PSD

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图 5 桥面平整度测量曲线

Figure 5. Roughness measure curves of deck

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图 6 桥面功率谱测量曲线

Figure 6. PSD measure curves of deck

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图 7 S_q(n₀)和I的关系

Figure 7. Relationship between S_q(n₀) and I

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图 8 桥面状况与主拱跨径的关系

Figure 8. Relationship between deck roughness and arch span

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图 9 桥面状况与使用年数的关系

Figure 9. Relationship between deck roughness and service years

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表 1 桥梁参数

Table 1. Parameters of bridges

桥名	建成年份	跨径/m	结构型式	拱肋截面形式	桥宽(行车道宽)/m
福安群益大桥	1998	46	中承式	单圆管	18.0(12.0)
仙游兰溪大桥	1997	64	中承式	哑铃形	27.7(14.5)
福鼎桐山大桥	2003	75	下承式刚架系杆拱	哑铃形	21.0(15.0)
福清玉融大桥	1995	76	中承式	哑铃形	28.4(14.0)
福鼎山前大桥	2000	80	下承式刚架系杆拱	单圆管	14.0(12.0)
安溪兰溪大桥	1999	80	下承式刚架系杆拱	哑铃形	15.0(12.0)
福州解放大桥	1996	80	中承式	哑铃形	14.0(9.0)
安溪铭选大桥	1995	90	中承式	哑铃形	14.0(9.0)
闽清石潭溪大桥	1997	136	中承式	四管桁式	13.1(9.0)

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表 2 实测桥面平整度评价结果

Table 2. Evaluation result of measured deck roughnesses

桥名	I/(m·km^-1)	S_q(n₀)/(mm²·m)	评价
福安群益大桥	6.038	103	D(中)
仙游兰溪大桥	5.473	85	C(良)
福鼎桐山大桥	5.143	74	C(良)
福清玉融大桥	7.669	162	D(中)
福鼎山前大桥	5.685	95	C(良)
安溪兰溪大桥	5.228	77	C(良)
福州解放大桥	7.445	159	D(中)
安溪铭选大桥	9.496	246	E(次)
闽清石潭溪大桥	8.185	192	E(次)

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