STRUCTURAL ENGINEERING FORUM OF INDIA [SEFI]

Sir,
Previously Salem was in seismic zone II. Now as per IS1893 part 1-2016 it comes under seismic zone III. Since Mettur Dam is part of Salem district it is under zone III only. in TNEB, in all o ...

i herewith attached wind calculation for closed and open structure as per IS875 part3 for reference.
V.M.RAJAN

In beam design the shear has to be resisted by concrete and steel. After taking shear by concrete balance shear has to resisted by stirrups. To take some portion of shear say 50% of balance shear r ...

I herewith attached the details of choosing rcc size of column for a building for reference.
V. M. Rajan.

For bridge design across river course, circular column is provided to divert waterway suitably in the upstream and downstream. For bridges in city like metro you can see only square column. Circular c ...

I herewith attached one excell sheet for circular column for M20 mix and steel grade Fy415 for reference. We can generalised the design sheet for any grade of concrete and any grade of steel by progr ...

The area of square and circular are almost equal but moment of inertia for square column is 1/12 b^4 where as circular column is π/64 xb^4. You can compare which section have more moment of iner ...

The circular column have less buckling than square column because the centroid is symmetry about all the axis. More over by design itself circular requires minimum 6 bars whereas square column requir ...

I herewith attached the various types of truss using staad pro for reference.�V. M. Rajan

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From: Rajan v.m.

Design of toilet slab without folding beam at intermediate support is attached for reference.
V.M.RAJAN