Seismic Boutique

Seismic Boutique is a professional seismic engineering toolkit designed for structural engineers, civil engineers, engineering students, and seismic design professionals. The app brings several practical seismic engineering tools together in one clean and easy-to-use mobile application, based primarily on Eurocode 8 (EN 1998-1) and ASCE 7 provisions. KEY ENGINEERING TOOLS **1. Seismic Response Spectrum — Eurocode 8** Generate and evaluate seismic response spectra based on EC8 parameters, including: • Elastic response spectrum • Design response spectrum • Vertical response spectrum • Ground type and soil parameters • Seismic zone and ground acceleration parameters • Structural behaviour factor • Damping and other seismic parameters • Clear spectrum curves and calculated results **2. Equivalent Static Method — Eurocode 8** Perform key calculations for the EC8 equivalent static seismic method, including: • Fundamental period • Seismic base shear • Distribution of lateral seismic forces over the building height • Story shear forces • Overturning moments • Floor-by-floor calculation results **3. Seismic Design Coefficients — ASCE 7** A practical reference and calculation tool for seismic design coefficients according to ASCE 7, including: • R factor • Ω₀ (Omega 0) • Cd coefficient • Concrete and steel structural systems • Equivalent lateral force base shear calculation **4. Seismic Resonance Phenomenon** Evaluate the relationship between the structural period and the site/soil period to provide a practical screening of potential seismic resonance risk. The tool compares the relevant periods and provides a clear indication of the resonance risk level. **5. Earthquake Magnitude Converter — FREE** Convert between commonly used earthquake magnitude scales and explore earthquake severity: • Moment magnitude (Mw) • Local magnitude (ML) • Body-wave magnitude (mb) • Surface-wave magnitude (Ms) • Earthquake severity classification • Estimated Modified Mercalli intensity • Estimated energy released This tool is available free of charge. BUILT FOR ENGINEERING WORKFLOWS Seismic Boutique is designed to help engineers perform common seismic calculations and checks quickly without relying on spreadsheets or manual formula lookups. Key benefits include: • Eurocode 8 and ASCE 7 based tools • Multiple seismic engineering calculations in one application • Fast and organized input and results • Clear engineering graphs and tables • Professional and intuitive interface • Save and reuse project calculation data locally • Generate PDF calculation reports • One-time purchase for premium tools • No subscription or recurring fees • No advertising in the current version More engineering tools may be added in future updates. WHO IS IT FOR? Seismic Boutique is designed for: • Structural engineers • Civil engineers • Seismic design engineers • Engineering consultants • Engineering students • Researchers and academics • Professionals working with seismic analysis and design ### IMPORTANT NOTICE Seismic Boutique is an engineering calculation and reference tool intended to assist qualified professionals in seismic analysis and preliminary design checks. Results should be independently reviewed by a qualified engineer and should not replace professional engineering judgment, project-specific requirements, or the applicable design codes and standards. The developer does not guarantee that the results are suitable for every project or jurisdiction. Users are responsible for verifying the input data, assumptions, applicable code provisions, and final engineering decisions.