Checks - I

Checks for preparation of modal

Summary (see details for further information)

A)  Units KN-m Change the unit to KN-m and the far right bottom dialog box.

B)  Concrete Frame

Design

Go to Options>Preferences>Concrete Frame Design and select the design

code as IS 450-200

C)  Define material property

Define the proper material as required e.g. M 20, 25, 30 etc.

D)  Defining framesections &Reinforcement

details

Define frame sections as required and carefully put in the reinforcementdetails like cover, no of bars in each direction and size of steel bars.

While defining frame sections,-  Column C3045 shall mean depth = 0.30 & width = 0.45-  Beam B2330 shall mean depth = 0.30 & width = 0.23

E)  Earthquake loadwith eccentricity

A total of four earthquake load cases i.e. two in each direction with 0.05eccentricities in each direction are to be made. Earthquake loads are to bedefined as per the given area’s seismic zones as defined by IS 1893.

The sequence of earthquake loads should be as follows :1. EQXP2. EQYP3 .EQXN4. EQYN

F)  Column base point Change column’s base points to rigid. 

G)  Beam continuity Turn on the beam sections to check if beam is broken at correct points

H)  Slab Meshing Turn on auto area mesh and then toggle shrink to check meshing ofmembrane slabs

I)  End releases All non-continuous secondary ends of beams are to be released of M 3-3.Cantilever ends are not to be released.

J)  Output stations After creating/drawing all the lines elements select all the beams and assignthem 13 output stations.

K)  Wall loads Wall load on beam is to be calculated for the height H –  0.3 where H is theheight till next beam above it.

L)  Reference planes Change them accordingly if height is changed.

M)  Load Combination Add default design combos

 N)  Check modal AnalyzeCheck ModelTick all boxes & tolerance for checks should be

0.1m / 100 mm