Seismic Roof Curb Detail

Bolts should be with nuts and washers.

Seismic roof curb detail.

The conclusive value will be between 0 and 3 73 highest value in california. Curbs solidly braced or bolted directly to the building structure without vibration isolation. Additionally seismic requirements are not fulfilled by just ordering a seismically stamped roof curb. The additional requirements are detailed on each stamped submittal drawing.

Insignia is shown on curb and unit detail drawings. Roof curb must be square level prior to setting equipment. Heavy duty complete vibration isolation roof curb and rail for over 20 ton packaged rooftop units. Seismic roof curb seismic roof curb detail.

Kinetics esr features high frequency noise isolation pads code compliant seismic and wind restraint and access ports for each isolator to inspect level or change springs after equipment placement. Ss is the mapped maximum credible earthquake five percent dampened spectral response acceleration parameter at short periods as defined in asce 7 10 section 11 4 1. A minimum of one cross brace will be provided with each curb. See fi gure 6.

The curbs should be anchored to structural steel concrete as fallows. The maximum spacing between cross braces is 90. Any roof curb rigid or vibration that have been engineered and stamped to meet current ibc 2015 you may also hear this as complying or calculated. Additional roof curb anchoring and methods of securing equipment to the curb are also a requirement and must be adhered to for the certification to be valid.

Bolts should be placed in every hole provided in the base plate of the curb. The goal is to match or exceed the seismic roof curb design value referred to as the ss value. Vibration isolation roof curb and rail.