30MnSi管桩钢筋镦头开裂原因浅析  

PRELIMINARY CAUSE ANALYSIS ON CRACKING OF THE REINFORCING BAR TIP IN 30MnSi PIPE PILE

作　　者：罗一鸣[1] 范敬国[2] 

机构地区：[1]武钢质检中心,湖北武汉430083 [2]武钢技术质量部,湖北武汉430083

出　　处：《武钢技术》2002年第4期18-20,24,共4页Wisco Technology

摘　　要：从盘条和管桩生产工艺等方面 ,分析 30MnSi管桩钢筋镦头开裂的原因 ,认为除传统上的钢筋热处理和盘条钢质两类影响因素外 ,表面划伤和折叠等线状缺陷也会造成镦头开裂 ,对比作重点分析。Proceeding from a review on the production process of the wire rod and the reinforcing bar of the pipe pile the causes to the cracking of the reinforcing bar tip of 30MnSi pipe pile are carefully analyzed.Results indicate that the linear defects such as the surface scratching and folding may probably lead to the damage of the bar tip besides two traditional influencing factors,heat treatment of the reinforcing bar and the quality of the wire rod steel.

关 键 词：30MnSi 管桩钢筋 镦头 开裂 

分 类 号：TU511.32[建筑科学—建筑技术科学]