seismic analysis overview:equivalent:pushover:response spectrum:time history analysis:base shear

in this video i have explained all the different seismic analysis procedures. also i have given the details where to use which methods ie applicability of methods. i have given codals provision with reference. base shear concept and lateral load concept i have explained in detail.
how to calculate base shear . what is the importance of base shear. effect on roof displacement.
In order to perform the seismic analysis and design of a structure to be built at a particular location, the actual time history record is required. However, it is not possible to have such records at each and every location. Further, the seismic analysis of structures cannot be carried out simply based on the peak value of the ground acceleration as the response of the structure depend upon the frequency content of ground motion and its own dynamic properties. To overcome the above difficulties, earthquake response spectrum is the most popular tool in the seismic analysis of structures. There are computational advantages in using the response spectrum method of seismic analysis for prediction of displacements and member forces in structural systems. The method involves the calculation of only the maximum values of the displacements and member forces in each mode of vibration using smooth design spectra that are the average of several earthquake motions.
This chapter deals with response spectrum method and its application to various types of the structures. The codal provisions as per IS:1893 (Part 1)-2002 code for response spectrum analysis of multi-story building is also summarized.
Response spectra are curves plotted between maximum response of SDOF system subjected to specified earthquake ground motion and its time period (or frequency). Response spectrum can be interpreted as the locus of maximum response of a SDOF system for given damping ratio. Response spectra thus helps in obtaining the peak structural responses under linear range, which can be used for obtaining lateral forces developed in structure due to earthquake thus facilitates in earthquake-resistant design of structures.
Pushover Analysis
Amongst the natural hazards, earthquakes have the potential for causing the greatest damages. Since earthquake forces are random in nature & unpredictable, the engineering tools need to be sharpened for analyzing structures under the action of these forces. Earthquake loads are to be carefully modeled so as to assess the real behavior of structure with a clear understanding that damage is expected but it should be regulated. In this context pushover analysis which is an iterative procedure is looked upon as an alternative for the conventional analysis procedures. Pushover analysis of multi-story RCC framed buildings subjected to increasing lateral forces is carried out until the preset performance level (target displacement) is reached. The promise of performance-based seismic engineering (PBSE) is to produce structures with predictable seismic performance.
The recent advent of performance based design has brought the non linear static push over analysis procedure to the forefront. Pushover analysis is a static non linear procedure in which the magnitude of the structural loading along the lateral direction of the structure is incrementally increased in accordance with a certain pre-defined pattern. It is generally assumed that the behavior of the structure is controlled by its fundamental mode and the predefined pattern is expressed either in terms of story shear or in terms of fundamental mode shape.
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[@ahsanhabib8171]

nice presentation............more informative

[@Realcivil]

Thank you

[@mrinalsarthi6321]

Very well explained. please elaborate more on earthquake engineering dynamic analysis.

[@Realcivil]

Thank you mrinal ....And I will make video on dynamic analysis

[@AVVHacks]

Thank you so much sir my doubts got cleared.... Plz make a detailed vedio on response spectrum method

[@Realcivil]

Yes i will make soon. Thanks for watching

[@rajendramagare4757]

What is difference between linear and nonlinear time history analysis....

[@AVVHacks]

Sir one more doubt when to go for time history analysis

[@Realcivil]

Generally it is carried out important structure like nuclear power plant, etc

[@AVVHacks]

@@Realcivil thank you sir

[@amit95gupta]

Thanks

[@nitinsharma228]

Sir make video on finite element method

[@Realcivil]

Yes I will make one presentation video on fem

[@laxmikantpavale8299]

Thank u sir

[@Realcivil]

Welcome bhushan

[@kumarshantveerayya5114]

you are presenting the old code book not the new code. So pls update it

[@Realcivil]

Yes we will make updated video

[@aniketmahalankar495]

👌 Good.. Please Tell more about Response spectrum method in upcoming videos. Mode shapes and behavior of structure on different Mode shapes.

[@Realcivil]

Thank you ....Yes I will prepare one presentation on response spectrum method and it's details

[@ankushpawar8826]

I want these ppt

[@Realcivil]

I have to check in pc if I get it i will share it

[@civilideas1925]

👍🏻