Soft Storey Check As per IS1893-2016 in STAAD Pro Connect Edition
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- čas přidán 9. 09. 2024
- Understand the fundamentals of soft storey as per IS 1893-2016 and old code IS 1893-2002,Understand logic behind the calculation of soft storey in STAAD Pro Connect Edition and few tips to avoid soft storey.
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Thanks a lot for sharing with us.... one clarification I need for the option Floor height we don't need input R-mass or any other spec?
Sir thanks alot 🙏
Why do you take minus values of floors in seismic definition?
Bcs my foundation supports are considered below 0.0 level
that's why it is with - ve sign please watch whole video carefully I have already explained about that in session
Joint loads/weight should be considered in mass reference for better design
It's not only about joint weight what ever weights we have considered in DL /LL
in terms of udl or point load it will be considered as per seismic definition
I have two doubts, 1) I have applied 1st method to apply soft storey in which masterslave is not to be given ,and I did not give the master slave or rigid diaphragm option , but staad shows warning that ," Rigid Diphragm are not defined" , so does that mean I have to define reigid diaphragm in both methods?
2) How to check storey shear applied by staad at each storey by IS 1893 definition ?
To print the shears at each level, use the command PRINT LOAD DATA
with the analysis command as shown next
PERFORM ANALYSIS PRINT LOAD DATA
The analysis output file will list the shears at each node and also by floor.
Good day sir,
How can Access Floor Height command and Soft Storey check in STAAD grapghical input
you can watch the video again i have specified that it should be added in staad editior only
If i used floor height option,,,, warning comes like wall command need to be added like .
Soft storey results also not available
There have been a few changes in soft storey checking in recent versions of STAAD.Pro. In order to perform soft storey checking, one of the following is needed in the model:
1. The FLOOR HEIGHT command
2. Rigid Floor Diaphragms
On finding those commands, STAAD.Pro identifies the position (Y coordinate) of the floors in your model.
Soft Storey checks are done only if the CHECK SOFT STOREY command is included in the model. Also, the PRINT STOREY DRIFT command is needed to instruct STAAD to check for storey drift.
The FLOOR HEIGHT option is needed if there are no clearly identifiable floor levels in the model, or, if you want to define floor levels on your own instead of having the program scan for them on its own. These commands have to be specified before the IS:1893 seismic definition in the following format.
FLOOR HEIGHT
H1; H2; H3; ……….Hn so on
In case of supports that are scattered at different Y levels, use the Y value of the one that has the lowest Y coordinate. FLOOR HEIGHT commands should be specified before the DEFINE 1893 command block as well as before the primary Response Spectrum load cases.
Iike this following commands have been provided before the IS:1893 seismic definition.
FLOOR HEIGHT
0; 1.125; 2.25; 3.375; 4.5; 5.625; 6.75; 7.875; 9; 10.5; 12
How can we download this PDF sir...national information centre of earthquake engineering..
www.nicee.org/EQTips.php checkout this link below i have explained in vide as well
Sir can u please share your staad pro file