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土木专业英语翻译作业

桂林理工大学土木与建筑工程学院土木工程专业英语外文翻译,中文翻译姓名:马凤志专业:土木应用班级:10级9班学号:3100510939原文中文翻译The Influence of Concrete Compaction on the Strength of Concrete Filled Steel Tubes压实混凝土对混凝土强度的影响Lin-Hai HanSchool of Civil Engineering, Harbin University of Civil Engineering and Architecture, Haihe Road 202, PO Box 689, Harbin 150090, P.R. China韩林海,哈尔滨建筑大学,土木与建筑工程学院,海河路202号,邮政信箱,689,哈尔滨,150090 中国ABSTRACT: Tests on twenty-one concrete filled steel tubes to investigate the influence of compaction methods on the strength of concrete filled steel tubular members are reported.摘要:测试二十一钢管混凝土试验,研究了钢管对混凝土构件强度压实方法的影响报告。

Two parameters were investigated, including slenderness ratio and load eccentricity.对两个参数进行研究,包括长细比和荷载偏心。

It was found that better compaction of concrete resulted in higher values of the ultimate strength of concrete filled steeltubular members结果发现更好的压实混凝土,能够使钢管混凝土有更高的极限强度值。

The tests show the importance of good concrete compaction for concrete filled steel tubes测试显示良好的混凝土重要性压实的重要性为方钢管混凝土管。

Keywords: concretefilled steel tube, column, strength, deflection, concrete compaction关键字; 钢管混凝土,柱,强度,挠度,混凝土压实1. INTRODUCTION 引言Concrete filled steel tubular columns have been used extensively in Europe, Japan, Australia, China, as well as other countries.在欧洲,日本,澳大利亚,中国,以及其他国家钢管混凝土柱已广泛被使用。

They have proved to be economical in themselves as well as leading to rapid construction and thus additional cost savings.1他们已经是被证明是经济实惠的,同时也能促进快速建设和增加消费储蓄In the past, much progress has been made in studying the bond strength between the steel tube and its core concrete, studiesof how the concrete compaction method influences the strength of concrete filled steel tubular members have been seldom made.2–8在过去的研究中,钢管与核心混凝土之间的粘结强度有了很大进展,但对混凝土的压实方法对钢管混凝土构件强度的研究已经很少了。

2–8These and earlier results show that perhaps the most significant factor influencing the ultimate bond strength might be compaction and the consequent better keying of the concrete with the surface irregularities in the steel.这些和早期的结果表明,也许最重要的因素可能影响最终粘结强度压实以及更好地键控,因而混凝土与钢管中的表面成不规则性In Reference (2), specimens have been tested for different conditions likely to arise in the manufacture of concrete as follows:在参考(2)中,在制造混凝土过程中针对不同的条件下的标本已经过测试,如下所示:1.Aggregate/cement ratio 5.0, dry cured, well compacted witha poker vibrator;1,聚合/水泥比为5.0,干燥固化, 以及压实与插入式振捣器2.Aggregate/cement ratio 5.0, wet cured, well compacted witha poker vibrator;2,骨料/水泥比为5,湿固化,以及压实与插入式振捣器;3.Aggregate/cement ratio 5.5, wet cured, well compacted witha poker vibrator;3,总/水泥比为5.5,湿固化,以及压实与插入式振捣器4.Aggregate/cement ratio5.5, wet cured, lightly compactedwith a poker vibrator4,聚合/水泥比为5.5,湿固化,轻轻压实与插入式振捣器5.Aggregate/cement ratio 5.5, wet cured, well compacted byhand (3 layers with 40 strokes each);5,总/水泥比为5.5,湿固化,用手压实(3层,每组40次)6. Aggregate/cement ratio 5.5, wet cured, lightly compacted by hand (3 layers with 20 strokes each).6,粒料/水泥比5.5,湿固化,轻轻用手压实(3层,每组20次)The test results in Reference (2) show that specimens compacted by mechanical vibration developed higher bond strength than those compacted by hand.参考(2)显示,由机械振动碾压的标本中的测试结果比用手开发粘结强度更高也比那些压实的更高。

The aim of this paper is to investigate if the concrete compaction method influences the strength of concrete filled steel tubular members. Tests on several concrete filled steel tubes for establishing the relationship between strength andcompaction method are reported.本文件的目的是调查如果混凝土压实方法影响钢管混凝土构件的强度。

根据几个混凝土试验根据报告,钢管为建立强度和压实的方法之间的关系。

Several parameters, such as the slenderness ratio l (= 4L/D,L and D are the calculated length and the diameter of the member respectively), as well as the load eccentricity e were investigated.几个参数,如长细比 l (= 4 L/D、 L 和 D 分别计算的长度和直径的成员),以及负载偏心 e 进行了调查。

The tests show the importance of concrete compaction method on the strength of concrete filled steel tubular members. 试验表明,混凝土的压实方法对钢管混凝土构件强度的重要性。

2. EXPERIMENTAL PROGRAM2.实验程序The aim of the experimental study was to determine not only the maximum load capacity of the specimens, but also to investigate the behavorial pattern up to and beyond ultimate load.本实验研究的目的是确定不仅试样的最大负载能力,但也观察到的行为模式超越极限荷载。

The steel had a specified yield strength (f y) as shown in Table 1.该钢具有指定的屈服强度(FY),如表所示 1The concrete mix was designed for a compressive cube strength (f cu) at 28 days of approximately 46.7 MPa。

混凝土配合比设计为一个立方体抗压强度(FCU)在28天约46.7 MPa For each concrete mix batch used, three 100 mm cubes were also cast and cured in conditions similar to the related specimens. 每个使用的混凝土配合比批处理,三个 100 毫米的立方体也强制转换,并固化在条件类似的相关标本。

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