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  • Posts

    • CE marking comes down to design according to eurocodes and fabrication according too EN1090. Design shouldn't be a problem. You're looking at the right codes. For fabrication, you'll need a FPC certified company.
    • Hallo.   From what I understand it seems just that Hilti mortar has different bond properties than concrete and it dissipates stresses sooner (in less bond length), that is why there is the maximum effective anchorage length, because after that there is no gain in maximum force that can be anchored. I would speculate that it is because the mortar has lower plasticity than concrete and it cannot withstand stress at the start of the anchorage, so until stresses can distribute further into the anchorage length, the first part of the anchorage already gets overloaded. I hope I've made my self clear enough. Anyhow we have come to a conclusion that with Hilti HIT-HY 200 we can anchor only 100MPa with either rebar providing maximum effective anchorage length (calculated by simplified Hilti methods provided in the book/pdf).   P.S. Hope that there will be someone who really knows whats up with this and what is the mechanics behind anchorage with Hilti mortars.   Best of luck.
    • This (screenshots below) is not for pad eye design but for pinned connections, mind that only some of the principles apply. BTH is a much better standard, and much more detailed (and suitable) for padeye design.    
    • EN 1090 is directly linked to the execution of steel structures calculated according to the eurocodes, and table 24 gives provisions with regards to NDT. crane structures do not fall under EXC1, but rather 2 or higher, depending on the environment and socio-economical consequences if structural failure should occur.
    • Hi everyone, Have to solve a problem on site. I have to use Hilti mortar and rebars to connect my foundation to existing rc underground structure. I have to use 20mm rods. It is said in hilti manual that min anchorage depth is 90mm, normal is about 200-240 and maximum is 400mm. If I need to anchor simple 20mm rod in simple C30/37 conrete then base anchorage length is about 36*d=36*20=720mm. Does it mean, that anchorage depth in existing concrete with hilti mortar is 400mm (for max capacity) and in concrete about 2 times more?
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