In 1999 we did repairs to about 200 each anchor bolts to a 120' high chimney stack that was under construction where the anchor bolts pulled out at less than 10% of required capacity. Approx 5' long x 1.5" dia, straight-shaft bolts that were paint finished - hence the failure after co...
on to the concrete foundation and the machine lowered on to the shims however unless the shims are removed after grouting, they will (like the bolt and 2 nuts) bear most of the weight; post tensioning is not possible unless It is common practice for anchor bolt / holding down bolts to ...
Anchor Bolts - The Forgotten Connection Reinforcing Deep Epoxy Grout Pours Expansion Joints Grouting Problems - Machinery Foundations Proper Job Planning Foundations - Curing, Inspection and Preparation For over 67 years we have solved problems for the oil and gas, petrochemical, chemical process, refini...
Our technical support staff each have decades of field and technical support experience. In most cases we have done something like, or very similar to what you are doing. So it makes it easy for us to understand your situation, and help your installation go as smoothly as possible. The Ult...
Anchor bolts must be grouted in before filling the gap between the foundation and machine baseplate. Proper surface preparation achieving a minimum ¼” amplitude surface profile by chipping or aggressive abrasive grit blasting and removing any primer or coating from the base plate prior to the ...