Abstract：
Full and deep study is made on the low-temperature weld technology of building steel structure in respects of impact analysis of low-temperature on the weld and countermeasures, protection and adaptability training of welders, after-warm-up requirement, windproof and weld workmanship and etc. A complete set of low-temperature welding technology is summarized which may be beneficial to the revision of relevant codes and engineering practice in the future.
