中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 石梅湾大桥32m箱梁预应力孔道摩阻试验研究 中南林业科技大学学报 2010,30 (1) 69-72+94
Position: Home > Articles > Frictional test research of pre-stressed tube in 32-meter simply supported girder of Shimeiwan Bridge Journal of Central South University of Forestry & Technology 2010,30 (1) 69-72+94

石梅湾大桥32m箱梁预应力孔道摩阻试验研究

作  者：
贺国京;邹永旺;易锦
单  位：
中南林业科技大学土木工程与力学学院
关键词：
桥梁;管道摩阻;简支箱梁;预应力管道;摩阻系数;偏差系数
摘  要：
通过海南东环铁路——石梅湾大桥预应力管道摩阻损失的现场试验,测试了简支箱梁的预应力孔道应变值。基于后张法预应力管道摩阻损失的计算理论,利用应变实测值,得出了箱梁两端压力值的关系曲线。应用最小二乘法原理,导出了μ、k值的计算公式,获得了可靠的μ、k值。通过μ、k实测值与设计值的比较μ、k分析,结果表明,关于μ、k值计算公式的推导合理,实测数据可靠。进一步,根据实测值与设计值的互相验证,表明管道成孔质量较好,施工质量达到设计要求。
译  名：
Frictional test research of pre-stressed tube in 32-meter simply supported girder of Shimeiwan Bridge
作  者：
HE Guo-jing,ZOU Yong-wang,YI Jin(School of Civil Engineering,Architecture and Mechanics,Central South University of Forestry and Technology,Changsha 410004,Hunan,China)
关键词：
bridge;tube frictional resistance;simply supported girder;pre-stressed tube; frictional coefficient;coefficient of deviation
摘  要：
The strains of pre-stressed tube in test span have been measured in the situ test for Shimeiwan Bridge on the Eastern railway in Hainan Province.Based on the calculation method of frictional resistance loss in the post-tensioned pre-stressed tube,the relevant curves of stress of the girder are obtained by the tested data of strains.Reliable actual data μ and k have been obtained by the calculation formulas are derived by least square technique.Compared with the design,it is showed that the calculation formulas are logical and the test data is reliable.Furthermore,mutual verify of the test data and the design data indicate the tubes are in a good status and the quality satisfied the design requirement.

相似文章

导出引用
计量
文章访问数: 7
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46