Leaderboard

Aoa. Naeem! I have done a little search on google regarding design examples for lifting hooks and devices, and found following links on the first page of search results. There will be a lot more on later search pages as well. (mostly the designs data is based on ASME BTH (Below The Hook) 1 code) : 1. spreader bar and lug caculations: http://www.pveng.com/ASME/ASME_Samples/ASME_SpreaderBar/ASME_SpreaderBar_Calcs.pdf 2. Lifting lug design: http://www.webcivil.com/stlug.aspx 3. Spreader bar design process: http://www.spartaengineering.com/spreader-bar-design-process/ 4. Below the hook equipment. Has several pdf files about lifting devices.: http://www.avonengineering.com/below-hook-lifting.php etc. etc. Try searching yourself. You may surely get much more relevant data than I have listed above.

The lifting lugs are available from 3rd party and their max capacities are listed. You just need to see that your lifting reaction at that point is less than lifting lug capacity. What you need to do is to weld a steel plate to reinforcement cage and lifting lug could be attached to the plate. This is a improvised solution. I have never done a rebar cage lifting but I do have done steel module lifting calculations. Weld specifications would depend upon your base metal strength. I am out of office. Can post somethinh when I return to Canada from Pak.

The geotechnical engineer has to provide you with soil improvement recommendations for liquefaction.

Aoa. asadishaq! The links are working fine, even now. Most probably, you might be having some problem with your web browser, or its settings. Sorry, for replying in place of Rana. However, it is as a third-party cross-check only.