Response Spectrum

Glossary Term

A response spectrum is a term from dynamics. It is a diagram describing which describes the response of a single-mass oscillator or several single-mass oscillators to vibration excitation.

A structural system is damped and the excitation occurs on a support node. An answer or a reaction to this vibration can be acceleration, a velocity or displacement.

Response spectra are used in seismic design, for example, according to EN 1998‑1, and are derived and simplified records of the occurred earthquakes. It is then possible to analyse the reaction of the structure to such a response spectrum by means of the modal analysis, for example.

Keywords

Responses spectrum Earthquake Equivalent loads Vibration Single-mass oscillator Oscillator Damping

Links

RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

Price of First License
3,540.00 USD
RSTAB Main Program
RSTAB 8.xx

Main Program

The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions

Price of First License
2,550.00 USD
RFEM Dynamic Analysis
RF-DYNAM Pro - Equivalent Loads 5.xx

Add-on Module

Seismic and static load analysis using the multi-modal response spectrum analysis

Price of First License
760.00 USD
RSTAB Dynamic Analysis
DYNAM Pro - Equivalent Loads 8.xx

Add-on Module

Seismic and static load analysis using the multi-modal response spectrum analysis

Price of First License
580.00 USD