松花江斜拉大桥Q390E/Q420E钢梁焊接预热温度的确定  

DETERMINATION OF PREHEAT TEMPERATURE FOR WELDING Q390E/Q420E GIRDER OF SONGHUA RIVER BRIDGE

作　　者：李志波 刘绍云 葛忠权 陈彦君[2] 赵喜强[2] 常明华[2] 张显辉[3] 孙维峰[3] 张静[3] 

机构地区：[1]哈尔滨绕城高速公路工程建设指挥部,150070 [2]龙建路桥股份有限公司,哈尔滨市150070 [3]哈尔滨焊接研究所,150080

出　　处：《焊接》2003年第8期21-23,共3页Welding & Joining

摘　　要：采用“WELDCALCULATION”专用软件对Q390E、Q4 2 0E两种钢材的最低预热温度进行了计算 ,并采用插销试验和小铁研试验对计算结果进行了验证 ,在此基础上确定了松花江斜拉大桥钢梁不同厚度Q390E、Q4 2 0E钢板的焊接预热温度 。In this paper, the necessary preheat temperature was calculated by using “WELD CALCULATION” software, and the calculated results were verified by Implant and Tekken test. The preheat temperature for welding Q390E/Q420E girder of Songhua River Bridge was determined on the basis of above works. The results were applied to the girder welding successfully.

关 键 词：斜拉桥 钢梁 焊接 预热温度 插销试验 小铁研试验 

分 类 号：U448.27[建筑科学—桥梁与隧道工程] TG457.11[交通运输工程—道路与铁道工程]