Skip to main content

DDSS - Compression Members

Design of Compression Member:

Common hot rolled and build-up steel members used for carrying axial compression, usually fail by flexural buckling. So here we will see how to calculate the design compressive strength comparing to the factored load.

The design compressive strength Pd of a member is given as 
P<Pd
where, Pd is design compressive strength of member.

# Design of Compressive Strength (Pd):

The design compressive stress, fcd of axially loaded compression members shall be calculated using the following equations:
Design and Drawing of Steel Structure
The above is written in short from the IS 800 - 2007, Page 34.
For other terms you can refer the IS 800 - 2007, from Cl 7.1.2 which gives the Imperfection Factor,  Effective length of Prismatic Compression Member, Effective Length of Strut, Maximum Value of Slenderness Ratios which are required for the calculation of design of compression members.
Design and Drawing of Steel Structure
This written by me in the shortest form possible.

Comments

Popular Post

Timber Buildings !?

Timber Buildings !?  Why do we need a timber building? Yes, timber buildings. As on earth human population is on an exponential rise, many and many people are trying to get home in a city where they have easy excess for the workplace for their own living. In the near future, as the population gets more concentrated in cities more and more structures I mean Tall Structures need to be built. Loading Bearing and Comparison So now architects and builders have opted for old Technic of using timber as a building material eliminating concrete and steel. Yes, it is very hard to find this amount of trees but not impossible. It can be grown and regrown as needed. Many projects have been in progress of this idea and it reduces about 75% of carbon emission as compared to concrete and steel structure.



Using timber coming directly from the forest doesn't have the appropriate strength required for a high rise building. So designers came up with the new idea of CLT i.e. Cross Laminate Timber which …