小尺寸断面护栏混凝土裂缝产生的原因及控制措施  

The cause and control measures of concrete cracks in small size section guardrail

作　　者：李挺 任永强 Li ting;ren yong-qiang(China Communications Construction Fourth Highway Engineering Co.,Ltd.,100123,Beijing,China;China Communications Construction Fourth Engineering Co.,Ltd.,100123,Beijing,China)

机构地区：[1]中交第四公路工程局有限公司,北京100123

出　　处：《建筑技术》2025年第5期541-544,共4页Architecture Technology

摘　　要：某市政特大桥项目地处内蒙古东部地区,春季风沙较严重,因现浇桥梁混凝土护栏属于小尺寸断面结构,护栏表面出现纵向裂缝频率较高且较难控制。本研究通过理论分析与实际案例相结合,分析了小尺寸断面护栏混凝土裂缝的成因及相关控制措施。The municipal special bridge project is located in the eastern part of Inner Mongolia,where the wind and sand are relatively serious in spring.Since the concreterail of the cast-in-place bridge belongs to the small section structure,the frequency of longitudinal cracks on the surface of the guardrail is relatively high and difficult to control This study analyzes the causes of concrete cracks in small section guardrails and related control measures through the combination of theoretical analysis and practical cases.

关 键 词：桥梁 护栏 小尺寸断面 裂缝预防 

分 类 号：U445[建筑科学—桥梁与隧道工程]