# Popular Articles

## What is Mass Source?

In Mass Source we define the mass of the structure along with additional dead and live load to be taken into account for the Earthquake analysis. As per Clause 7.3.1 of IS 1893:2016(Part 1), Seismic design force shall be estimated using full dead ...

## What are the Stability checks criteria for the High rise building?

The criteria for the stability checks for the tall buildings are as follows: - Inter storey drift ratio should be less than 0.004. (Clause 7.11.1.1 of IS 1893(Part 1): 2016 The maximum deflection against wind allowed is H/500. (Clause 5.4 of IS ...

## What is shear force and bending moment?

Shear force Shear force is the force acting on a substance in a direction perpendicular to the extension of the substance, acting in a direction to a planar cross-section of a body. Shear force is the summation of the effect of shear stress over a ...

## What are Difference between the thin shell, thick shell, membrane element and Layered. Uses and applications. Why?

Thin Shell Element Inplane & Out of plane stiffness shall be calculated by the program by performing analysis. Finite element meshing is compulsory for modeling such type of element Applications Normal RC Beam and slab structures. Irregular slabs, ...

## What is the difference between Time History and Response Spectrum?

Time History This method calculates the response of a structure subjected to earthquake excitation at every instant of time (hence the name Time History). Various seismic data are necessary to carry out the seismic analysis i.e. acceleration, ...