I'd like to install a trellis / pergola wall like the photo here with 4' x 4' or larger posts attached to concrete. The concrete appears to be 6" thick and is about 60+ years old. It's in good condition. What do you recommend to attach these wood posts to the cement? This wall will go up between the house and garage about 16' in lengthand also be support for a future pergola extending over this area. Thanks for your help, I appreciate it!