| 铁路桥梁用高性能混凝土的力学性能试验研究 |
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| 引用本文： | 秦涛,韩方玉,光鉴淼,沙建芳,刘建忠,苏延文,曾永平.铁路桥梁用高性能混凝土的力学性能试验研究[J].混凝土,2021(3):134-136. |
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| 作者姓名： | 秦涛 韩方玉 光鉴淼 沙建芳 刘建忠 苏延文 曾永平 |
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| 作者单位： | 江苏苏博特新材料股份有限公司,江苏南京211103;高性能土木工程材料国家重点实验室,江苏南京211103;中铁二院工程集团有限责任公司,四川成都610031 |
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| 基金项目： | 国家自然科学面上基金(51578269);国家重点研发计划(2018YFC0705400);国家自然科学基金重点项目(51438003)。 |
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| 摘 要： | 作为重要桥型之一的拱桥,跨径的不断增长是其重要发展趋势,而高性能混凝土为拱桥跨径的飞跃提供了有效载体。研究了C80~C100高性能混凝土的制备和力学性能评价,形成了铁路桥梁用C80~C100高性能混凝土的配合比,并揭示了立方体抗压强度、轴心抗压强度、轴心抗拉强度、弹性模量、剪切变形模量及泊松比等力学性能指标,为铁路桥梁用C80~C100混凝土的结构设计提供了取值依据。
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| 关 键 词： | 铁路桥梁 高性能混凝土 配合比 力学性能 |
Experimental study on mechanical properties of high performance concrete for railway bridges |
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| QIN Tao,HAN Fangyu,GUANG Jianmiao,SHA Jianfang,LIU Jianzhong,SU Yanwen,ZENG Yongping.Experimental study on mechanical properties of high performance concrete for railway bridges[J].Concrete,2021(3):134-136. |
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| Authors: | QIN Tao HAN Fangyu GUANG Jianmiao SHA Jianfang LIU Jianzhong SU Yanwen ZENG Yongping |
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| Affiliation: | (Jiangsu Sobute New Materials Co.,Ltd.,Nanjing 211103,China;State Key Laboratory of High Performance Civil Engineering Materials,Nanjing 211103,China;China Railway Eryuan Engineering Group Co.,Ltd.,Chengdu 610031,China) |
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| Abstract: | High performance concrete occupies strengthened mechanical properties,which has received increasing interest in the arch bridges with large-span.Preparation and mechanical properties of C80~C100 high performance concrete was investigated.Mix proportion of C80~C100 high performance concrete for railway bridges is tailored carefully,and its overall mechanical properties,such as cubic compressive strength,axial compressive strength,axial tensile strength and so on,is revealed,aiming to provide the basis for structural design of railway arch bridges. |
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| Keywords: | railway bridge high performance concrete mix proportion mechanical properties |
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