摘要
广州珠江新城西塔工程采用筒中筒结构,钢结构用钢量很大。钢管在卷制、压制和焊接过程中会产生残余应力。消除残余应力对结构质量控制尤为重要,介绍了构件VSR消应工艺和直管振动时效工艺,以及对被处理构件提出的技术要求。叙述了钢管和节点采用VSR时效振动法的技术参数以及局部控制加热法的具体实施过程及其效果。提高了结构的整体承载力,增强了结构的安全性。
Guangzhou Pear River New Town West-tower is a tube-in-tube structure,whose steel structures need lots of steel.During the reeling,pressing and welding of steel pipes,residual stress is generated,so eliminating residual stress is important for structure quality.The eliminating residual stress method of vibratory stress relief and straight pipe vibratory stress relief are introduced,technology requirement of treated components is also described.The technical parameters of steel pipes and nodes vibratory stress relief,the implementation process and effect of local control heat treatment method are put forward.The eliminationg method can imporve structures total bearing capacity,and also enhance safety of the structure.
出处
《施工技术》
CAS
北大核心
2010年第11期11-13,共3页
Construction Technology
关键词
残余应力
消除方法
VSR
局部控制加热法
residual stress
eliminating method
vibratory stress relief
local control heat treatment
