What size mechanical holes or openings can I core in the hollow core slabs?
This is more a question for your precast supplier and we would advise you to check with them. We would suggest however, that no slots parallel to the D-Beam be any closer than 18″ to the center line of the D-Beam.11. I notice in your Design Guide you say that bay sizes of 20′ x 28′ are very efficient. The design tables from my local precast hollow core supplier say that 8″ plank can span around 33′. Why are you suggesting 28′ and they are saying 33′?Please discuss vibration, deflection, and differential camber ramifications with your local hollow core supplier.12. I am a structural engineer with previous experience using hollow-core planks on both masonry and steel structures. Typically the geometry of the building is rectangular with maybe a few skewed ends. How are curved and round areas best handled with Girder-Slab and hollow-core plank?Please discuss this with your local hollow-core plank suppliers. Various suppliers throughout the country will have different options. Generally sp
