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  2. Seismic analysis - Wikipedia

    en.wikipedia.org/wiki/Seismic_analysis

    The response is read from a design response spectrum, given the natural frequency of the building (either calculated or defined by the building code). The applicability of this method is extended in many building codes by applying factors to account for higher buildings with some higher modes, and for low levels of twisting. To account for ...

  3. Endurance time method - Wikipedia

    en.wikipedia.org/wiki/Endurance_time_method

    Endurance time method is a time-history based dynamic analysis procedure. An estimate of the structural response at different equivalent seismic intensity levels is obtained in a single response history analysis. [2] This method has applications in seismic assessment of various structural types and in different areas of earthquake engineering ...

  4. Mathematical Q models - Wikipedia

    en.wikipedia.org/wiki/Mathematical_Q_models

    Mathematical Q models provide a model of the earth's response to seismic waves.In reflection seismology, the anelastic attenuation factor, often expressed as seismic quality factor or Q, which is inversely proportional to attenuation factor, quantifies the effects of anelastic attenuation on the seismic wavelet caused by fluid movement and grain boundary friction.

  5. Eurocode 8: Design of structures for earthquake resistance

    en.wikipedia.org/wiki/Eurocode_8:_Design_of...

    EN 1998-1 applies to the design of buildings and civil engineering works in seismic regions. It is subdivided in 10 Sections, some of which are specifically devoted to the design of buildings. Section 1 of EN 1998-1 contains the scope, normative references, assumptions, principles and application rules, terms and definitions, symbols and units.

  6. Earthquake engineering - Wikipedia

    en.wikipedia.org/wiki/Earthquake_engineering

    Seismic design requirements depend on the type of the structure, locality of the project and its authorities which stipulate applicable seismic design codes and criteria. [7] For instance, California Department of Transportation 's requirements called The Seismic Design Criteria (SDC) and aimed at the design of new bridges in California [ 37 ...

  7. Response spectrum - Wikipedia

    en.wikipedia.org/wiki/Response_spectrum

    The main limitation of response spectra is that they are only universally applicable for linear systems. Response spectra can be generated for non-linear systems, but are only applicable to systems with the same non-linearity, although attempts have been made to develop non-linear seismic design spectra with wider structural application. The ...

  8. Seismic inverse Q filtering - Wikipedia

    en.wikipedia.org/wiki/Seismic_inverse_Q_filtering

    The wavenumber k(w) is an important variable in the solution (1.2). To obtain a solution that can be applied to seismic k(w) must be connected to a function that represent the way U(r,w) propagates in the seismic media. This functions can be regarded as a Q-model. The Kolsky Model is used extensively in seismic inverse Q-filtering.

  9. Earthquake preparedness - Wikipedia

    en.wikipedia.org/wiki/Earthquake_preparedness

    Earthquake modification techniques and modern building codes are designed to prevent total destruction of buildings for earthquakes of no greater than 8.5 on the Richter Scale. [4] Although the Richter Scale is referenced, the localized shaking intensity is one of the largest factors to be considered in building resiliency.