.. _R4.05.01:

**r4.05.01** Seismic response by transient analysis
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**Summary**

The most frequently used methods for the seismic analysis of structures are spectral methods and transient methods.

Transient methods (direct linear or not, by modal synthesis) make it possible to calculate the response of structures under the effect of imposed earthquakes: single excitation (identical at each of the anchor points of the structure) or multiple and to take into account their possible non-linear behavior.

As far as spectral methods are concerned, the maximum response, for each vibration mode, of each anchor point is calculated. The maximum response of the whole structure, on average, in a statistical sense, is then determined by combining the maximum responses of the modes. This type of analysis is explained in the reference documentation [:external:ref:`R4.05.03 <R4.05.03>`].

**Table of Contents**




.. toctree::
    :hidden:

    self

.. toctree::
    :maxdepth: 2
    :numbered:

    Comportement_sismique_d_une_structure
    R_ponse_sismique_d_un_syst_me___un_degr__de_libert_
    R_ponse_sismique_d_un_syst_me___plusieurs_degr_s_de_libert_
    R_ponse_sismique_transitoire_par_synth_se_modale
    R_ponse_sismique_transitoire_directe
    Interaction_sol-structure
    Bibliographie
    Description_des_versions_du_document