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Hi, I've been trying to get a fixing to hollow brickwork to work for only 5kN shear force. It's for a mullion connecting to 140thk hollow concrete brickwork to prevent some lateral movement. I used HY270 chemanchor with sieve sleeve with 85mm length insert; setup with hollow normal weight concrete brick (200 x 200 x 500 as the minimum size) with 10MPa brick strength and M10-M20 joint strength as the max strength I can use. I end up using 4 anchors but HILTI PROFIS ENGINEERING is still failing for 170+% brick edge failure. From an old catalogue, an HY20 +M12 will provide 3kN capacity in shear, so I'd assume 2 HY270 anchors would work. But 4 anchors still couldn't work which was out of our expectation. I've spoke to Kanan just after lunch, but he's out of the office. It would be much appreciated if you would please help looking into this issue. Please feel free to call me on 0405 682 312 for further discussion. Thanks, Ola Yi Innovis

Pls advise the best way to fit 980 x 100mm M10 threaded rods to a flat roof to be used to hold bracketing for solar panel installation. The flat roof (26 floor 5 star hotel) has not yet been poured and I wanted to know if best to fit the bolts pre-pour or to post fit the bolts. There is a lot of concern over the waterproofing of the roof for a post drill. So need some good information to convince the builder to do it this way.

Does this program account for the concrete that the anchors are going into if its reinforced as I know there is a reinforcement tab under base material but when changing those inputs it does nothing to the results. Is there a way to untick a box to ignore cone pullout?