🏛️ IBC Chapter A1 / ASCE 41 (URM Parapet Diagonal Steel Bracing & Floor Anchors)

URM Seismic Parapet Retrofit Calculator

Model mandatory seismic hazard retrofits for historic unreinforced brick masonry (URM) parapets under IBC Existing Building Code Appendix A1 & ASCE 41: calculate cantilever overturning seismic demand forces (Fp), diagonal structural steel tube diagonal bracing spacing (every 6-8 feet to roof joists), and historic masonry restoration profits.

1. Project & Operating Inputs

URM Roof Parapet Perimeter Length (Linear Feet e.g. 650 Linear Feet)

Parapet Height Above Roof Deck (Feet e.g. 4.5 ft Tall Parapet)

Customer Bid Price for Supplied & Braced Parapet ($ / Lin Ft)

Steel Angle Braces, Through-Bolts with Bearing Plates, Masons ($ / Ft)

2. Financial Breakdown & Yield

ASCE 41 URM PARAPET SEISMIC

Turnkey URM Seismic Retrofit Profit

Masonry Restoration Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost