If column is fixed both the ends what is actual length and effective length
Answers
Step-by-step explanation:
The shortest distance between the top and bottom most points of the column at the point of bending is termed as length which effectively resists against the buckling.
Effective length for a compression member depends upon the support conditions which are provided to it. The boundary condition of a column is considered in the following manner as below.
• Both the ends pin jointed,
• Both ends fixed,
• One end fixed and the other end is pinned, and
• One end fixed and the other end free.
In order to compute the effective length factor of reinforced concrete column, the facts taken in to account are inelastic column behavior under cracking, buckling and the member yielding.
Both the ends pin jointed:
The effective length in the case of pin joint is Le=L.
Here, Le is the effective length of column, and L is the length between end points. The effective length factor is equal to 1.
Both end fixed:
The effective length when both the ends are fixed is equal to . The effective length factor is equal to 0.5.
When one end is fixed and another end is pinned for a column, the effective length is equal to . The effective length factor is equal to 0.707.
When one end is fixed, with the other end let free in a column, the effective length is equal to Le=2L. The effective length factor is equal to 2.
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