Anchorage and bracing calculations for the Division 26 and Division 23 seismic sections on data center and mission-critical projects, prepared for the trade contractor and stamped by a California-licensed civil engineer.
Scope is listed item by item in the written scope, so the package matches the submittal register.
Switchgear and switchboards, dry-type and pad-mounted transformers, panelboards, UPS modules and battery cabinets or racks, and PDUs, anchored to slabs, pads, and walls.
Trapeze hangers, rod bracing, cable and strut braces, and attachments for busway, cable tray, and conduit racks, including checks of the attachment points.
Cooling units, coolant distribution units, chillers, pumps, and rooftop units on curbs or dunnage frames, with piping support and bracing where in scope.
Strut frames for wall-mounted gear, floor stands, equipment platforms, and dunnage frames designed as equipment supports.
Each package is organized so a plan reviewer or engineer of record can follow it without a call.
Code edition, site seismic parameters, Risk Category, component importance factor, and the component factors used, stated on page one.
Component forces per ASCE 7-22 Chapter 13 and anchor design per ACI 318-19 Chapter 17 with ICC-ES evaluated anchors.
Anchorage and bracing details cross-referenced to the equipment schedule, with an anchor schedule giving embedment, edge distance, spacing, and installation notes.
Responses to engineer-of-record and reviewer comments, resubmittals, and field questions during installation.
Calculations are prepared and stamped by Hamed Hasani, PhD, PE, a California-licensed civil engineer. He previously worked as a research and development engineer at Simpson Strong-Tie, and his doctoral research was in the seismic behavior of structures.
He also brings field experience from public infrastructure construction, which shapes how details are drawn: anchors that can be installed with the rebar and conduit actually in the pad, brace points that exist in the field, and details an inspector can verify.
Yes. Where a bracing manufacturer provides layouts and calculations for its own hardware, we review them against the project criteria and design what they exclude: the attachments to structure, the equipment anchorage, and any supplemental framing.
Yes. We prepare packages to the submittal requirements of UFGS 26 05 48 and 23 05 48, including the design calculation and drawing submittals those sections call for. Read each project’s signer clause: some federal sections require a structural engineer’s stamp, and we flag that at scoping.
Not for active equipment that must remain operable. That certification comes from the manufacturer by shake-table testing (ICC-ES AC156) or experience data. We design the anchorage and supports to match it.
The equipment schedule with weights and center-of-gravity data, cut sheets with mounting details, the seismic specification section, structural drawings for the supporting structure, your anchor and bracing hardware preference, and any manufacturer seismic certificates.
Free 15-minute consultation, no obligation. You’ll get a written scope and fee estimate from a licensed California PE within one business day.
