LF-BJMB
What should be paid attention to in winter steel structure construction

What should be paid attention to in winter steel structure construction


1. Steel structure manufacturing and installation Winter construction is strictly performed in accordance with relevant winter construction regulations for steel structures.

2. For steel components with positive temperature and negative temperature installation, the shrinkage of components should be considered according to the difference in ambient temperature, and technical measures for adjusting deviations should be taken during construction.

3. Welders participating in the construction of negative temperature steel structures should be trained in negative temperature welding process, pass the exam, and obtain the corresponding certificate.

4. The steel and related connection materials used at negative temperature must be accompanied by a quality book, whose performance meets the requirements of design and product standards.

5. The electrode used under negative temperature should not be exposed for more than 2 hours, and re-baked for more than 2 hours, and the electrode should not be baked more than 3 times.

6. The flux should be baked according to regulations before use so that its water content does not exceed 0.1%.

7. The high-strength bolts used at negative temperature must have a product certificate, and the torque coefficient and axial force should be re-inspected at negative temperature.

8. Do not use water coatings for coatings used on steel structures at negative temperatures.

Related News
  • Trump unites steel-exporting countries against the US

    Trump unites steel-exporting countries against the US

    May 17, 2018Opposition to the steel and aluminum tariffs that U.S. President Donald Trump put into effect in March is mounting.India, the world's 10th largest steel exporter in value terms, is considering counter...view
  • Chengdu International Tianfu Airport Terminal Control Center main project structure capping

    Chengdu International Tianfu Airport Terminal Control Center main project structure capping

    May 27, 2019At 3:13 am on May 10, after 43 hours of hard work, the main structure of the terminal control hall of the air traffic control project of Chengdu Tianfu International Airport was successfully capped.Th...view
  • Steel for Life

    Steel for Life

    April 26, 2018Steel for Life is a new market development programme designed to ensure that steel maintains and develops its leading position as the preferred supplier of framing solutions for key sectors of the mar...view
  • Different structure of coal storage sheds in power plant

    Different structure of coal storage sheds in power plant

    January 22, 2020Common closed coal storage sheds structures are: dome coal storage shed, coal storage silo, barrel grid-frame closed strip coal storage shed, and spherical coal sheds. Dome storage shed is non-fully e...view
  • What is a reverse repurchase?

    What is a reverse repurchase?

    April 16, 2020In order to maintain the epidemic prevention and control of the special period of the banking system liquidity reasonable and abundant, the currency market can run smoothly, China's central bank carry...view
  • Coal Storage Takes Toll on People Living, Working Nearby

    Coal Storage Takes Toll on People Living, Working Nearby

    July 13, 2019Carnegie Mellon University researchers have found unburned coal increases air pollution and can affect the communities where it is transported and stored. The results are the first to quantify the imp...view
  • TEL:+86 516 8595 0258
  • FAX:+86 516 8595 0278
  • Email:marketing01@cnxzlf.com
  • ADDRESS:222, Block B, Diamond International, Guozhuang Road, Xuzhou, Jiangsu, China

[QUERYS RESOURCE ID #57]

Total quantity:788, Total process time:0.24772596 ms

[FILES LOADED]

Total quantity:22

Use Memory: 11.9MB

Time-consuming: 0.40757 ms