Structural Analysis of a High rise Building with different Plan Configurations using the ETABS software

Published on 16 Apr 2022. Written by Nidhi Tiwari

With the increase in population, the need for high-rise buildings has increased many folds. These multi-storied buildings have become very popular in metro cities. With an increase in the number such ultra-high rise buildings, there has also been an increase in the need to make these buildings resistant to the effect of earthquakes and other lateral loads that may cause the building to fail in completing its purpose much before the completion of its lifetime.

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SLNOTE


The structure of a high-rise building is dominated by lateral forces and these lateral forces are majorly the earthquake loads and the wind loads. Thus, to resist these lateral forces, the stiffness of the building is of prime importance.

In this project, you have to do the structural analysis of various multi-storied buildings with different plan configurations like C, L, and I shaped configurations. The main aim of structural analysis is to determine the general shape and the dimensions of various elements of a structure which will be most suitable for the purpose for which the building has to be designed and will help the building to serve for its entire estimated life period without any severe damage. In this project, the analysis will be done on models of buildings with different configurations and the models will be prepared using the ETABS software.

ETABS stands for Extended Three-dimensional Analysis of Building Systems and is one of the most popular software used for the analysis of buildings, bridges, steel structures, etc. ETABS enables both dynamic and static analysis of a structure for a wide range of loads. Here, you have to do the dynamic analysis f various structures of different plan shapes using the Response Spectrum or the Time History Method.

Project Implementation:

1. As the first step of this project, you have to design a 3D model of an RCC framed structure which consists of slabs, beams, columns and the foundation. These units are all joined with each other and together participate in transferring the loads to the ground. The load is transferred from the slabs to the beams, then to the columns and from columns to the foundation which ultimately transfers the load to the ground.

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Here, you have to design the same buildings with four different plan configurations which are:

• Rectangular Plan
• L shaped Plan
• I shaped Plan
• C shaped plan

For making the model, you have to specify the type of structure, number of storeys, height of the building, floor to floor height, dimensions of various structural elements like the slabs, columns, beams, etc.

2. Once your model is ready, you need to specify the loads acting on the structure. He primary loads are the live loads, dead loads (wall load, parapet load, floor load, etc.), seismic load, wind load, etc.
3. After this, you have to record the effect of the loads on different cases so that you can compare them. The results are recorded in the form of parameters like the maximum shear force, bending moment, maximum storey displacement, etc. These results should be preferably noted in tabular form so that you can easily compare the results of the different cases.

Conclusion:

After analysing the result obtained in different cases, you will get an idea as which type of structure is best in a particular condition and also that what will the effect of the various loads on an existing structure. Thus, you can design a structure with better resistance to loads and also predict the life and capacity of an existing structure.

SLDYK
Kit required to develop Structural Analysis of a High rise Building with different Plan Configurations using the ETABS software:

• No kit

Technologies you will learn by working on Structural Analysis of a High rise Building with different Plan Configurations using the ETABS software:

• ETABS
• Civil Engineering

Any Questions?