PC管桩钢筋镦头开裂原因分析  

CRACKING ANALYSIS OF THE HEAD OF PC STEEL BARS

作　　者：贾丽君[1] 袁利民[1] 于海民[1] 

机构地区：[1]邯郸钢铁集团有限责任公司科技环保部,邯郸056015

出　　处：《理化检验（物理分册）》2004年第10期522-524,共3页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：PC管桩钢筋镦头时常发生开裂。对开裂的镦头进行了化学成分、夹杂物及金相组织等检验。结果表明,镦头内部存在的大颗粒夹杂物和较严重的条形夹杂物是导致PC管桩钢筋镦头开裂的主要原因。提出了改进措施。The head of PC Steel Bars were analyzed by means of chemical composition analysis, inclusions and microstructures examination. The results show that there were relatively high inclusions and many stripe inclusions in samples.　These factors caused the crack initiation. The preventive method were also proposed to avoid similar events.

关 键 词：PC管桩钢筋 镦头 开裂 夹杂 组织 

分 类 号：TU511[建筑科学—建筑技术科学]