10 Story Concrete Building
Types of Analysis
- Response Spectrum Method
- Equivalent lateral force Method
- Time History Analysis
What Is Response Spectrum Analysis?
Response spectrum analysis is a method to estimate the structural response to short, nondeterministic, transient dynamic events. Examples of such events are earthquakes and shocks. Since the exact time history of the load is not known, it is difficult to perform a time-dependent analysis. Due to the short length of the event, it cannot be considered as an ergodic (“stationary”) process, so a random response approach is not applicable either.
What Is Equivalent Static Lateral force method?
The equivalent static lateral force method is a simplified technique to substitute the effect of dynamic loading of an expected earthquake by a static force distributed laterally on a structure for design purposes. The total applied seismic force V is generally evaluated in two horizontal directions parallel to the main axes of the building (Fig. 1). It assumes that the building responds in its fundamental lateral mode. For this to be true, the building must be low rise and must be fairly symmetric to avoid torsional movement under ground motions. The structure must be able to resist effects caused by seismic forces in either direction, but not in both directions simultaneously.
What Is Time history analysis method?
Time-history analysis provides for linear or nonlinear evaluation of dynamic structural response under loading which may vary according to the specified time function. Dynamic equilibrium equations, given by K u(t) + C d/dt u(t) + M d2/dt u(t) = r(t), are solved using either modal or direct-integration methods. Initial conditions may be set by continuing the structural state from the end of the previous analysis.
Seismic Analysis & Design of 10 Story RC Building (Equivalent Lateral Force) Seismic Analysis & Design of 10 Story RC Building (Modal Response Spectra Analysis) Seismic Analysis & Design of 10 Story RC Building (Time History Analysis)