[1]李晓波.铁路混凝土桥梁耐久性设计研究[J].高速铁路技术,2022,13(05):49-52.[doi:10.12098/j.issn.1674-8247.2022.05.010]
LI Xiaobo.Study on Durability Design of Concrete Bridge of the Railway[J].HIGH SPEED RAILWAY TECHNOLOGY,2022,13(05):49-52.[doi:10.12098/j.issn.1674-8247.2022.05.010]
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铁路混凝土桥梁耐久性设计研究()
《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]
- 卷:
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13卷
- 期数:
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2022年05期
- 页码:
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49-52
- 栏目:
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研究创新
- 出版日期:
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2022-10-01
文章信息/Info
- Title:
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Study on Durability Design of Concrete Bridge of the Railway
- 文章编号:
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1674-8247(2022)05-0049-04
- 作者:
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李晓波
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(中国铁路设计集团有限公司, 天津300308)
- Author(s):
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LI Xiaobo
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(China Railway Design Corporation , Tianjin 300308 , China)
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- 关键词:
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钢筋混凝土桥梁; 耐久性; 环境类别; 腐蚀机理
- Keywords:
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reinforced concrete bridge; durability; environmental category; corrosion mechanism
- 分类号:
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U448.33
- DOI:
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10.12098/j.issn.1674-8247.2022.05.010
- 文献标志码:
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A
- 摘要:
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随着服役年限的增加,铁路钢筋混凝土桥梁面临的耐久性问题日益突出。本文基于现场调研并结合
国内外研究成果,分别论述了6 种不同环境类别下钢筋混凝土结构的腐蚀机理,研究了水灰比、矿物掺合料
等影响因素对混凝土结构耐久性能的作用机理和影响效果,提出了不同环境类别作用下混凝土桥梁的耐久
性设计要求及强化措施,并对耦合环境作用给出了具体的设计建议。研究成果可为设计者开展桥梁混凝土
结构耐久性设计提供借鉴。
- Abstract:
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With the increase in service life,reinforced concrete bridges of railway show increasingly prominent problems
with durability. Based on the field investigation and the research results at home and abroad,this paper discusses the
corrosion mechanism of reinforced concrete structures under 6different environmental categories,studies the action
mechanism and impact effect of impact factors such as water-cement ratio and mineral admixtures on the durability of
concrete structures,and puts forward the durability design requirements and strengthening measures of concrete bridges
under different environmental categories. It also gives specific design suggestions for the environment coupling action. The
research results can provide a reference for the designers to carry out the durability design of bridge concrete structures.
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备注/Memo
- 备注/Memo:
-
收稿日期:2021 -11 -24
作者简介:李晓波(1992 -),男,工程师。
更新日期/Last Update:
2022-10-01