冰⁃混凝土相互作用及其对结构影响研究  

Research on ice⁃concrete interaction and effect concrete structure

作　　者：孙雪伟 唐雷 高培伟 张万磊 张俊 陈李峰 SUN Xuewei;TANG Lei;GAO Peiwei;ZHANG Wanlei;ZHANG Jun;CHEN Lifeng(The College of Civil Aviation,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China;Sinoroad Transportation Science and Technology Co.Ltd.,Nanjing 211808,China;CCCC Third Highway Engineering Co.Ltd.,Beijing 101300,China)

机构地区：[1]南京航空航天大学民航学院,江苏南京211106 [2]中路交科科技股份有限公司,江苏南京211808 [3]中交第三公路工程局有限公司,北京101300

出　　处：《现代交通与冶金材料》2022年第6期71-74,89,共5页Modern Transportation and Metallurgical Materials

摘　　要：在寒冷地区,冰荷载和冰与混凝土相互作用是海洋混凝土结构如桥梁和桥墩、大坝和码头重要影响因素。混凝土与冰的碰撞、摩擦等相互作用导致材料从混凝土表面流失,降低结构寿命,增加维护成本。本文阐述了冰⁃混凝土的相互作用机理,对接触面的磨损机制进行了总结。基于此分析了不同配合比混凝土在与冰的接触磨损过程中受到包括粘结力、接触压力、滑动速度等因素的影响程度。研究结果表明,混凝土损伤是由冰⁃混凝土界面之间的摩擦和粘结力控制的。粘结力越大,静摩擦损伤越明显。滑动损伤与接触面压力、滑动速度成正相关。In cold regions,ice loads and the interaction between ice and concrete are important influenc⁃ing factors for marine concrete structures such as bridges,piers,dams and wharves.Collisions,fric⁃tions and other interactions between concrete and ice lead to material loss from the concrete surface,re⁃duce structural life and increase maintenance costs.In this paper,the interaction mechanism of iceconcrete is studied,and the wear mechanism of contact surface is summarized.Based on this analysis,the influence of the factors including adhesion force,contact pressure,sliding speed and so on in the process of contact wear of concrete with different mix ratio and ice is analyzed.The results show that the damage of the concrete is controlled by the friction and bonding forces between ice-concrete inter⁃face.The greater the bonding force is,the more obvious the static friction damage will be.The sliding damage is positively correlated with the pressure and sliding speed of the contact surface.

关 键 词：冰⁃混凝土粘结 混凝土磨损 滑移 海洋混凝土 

分 类 号：TU755.7[建筑科学—建筑技术科学]