Mass irregularity check in etabs tutorial
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- เผยแพร่เมื่อ 4 ก.ค. 2019
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Mass irregularity check in etabs tutorial
How to check mass irregularity in etabs
How to calculate mass irregularity using etabs
Compute mass irregularity
What is mass irregularity
What is weight irregularity
What is meant by mass irregularity
mass irregularity in structure
Mass irregularity meaning
Irregular building definition
How to avoid mass irregularity
Types of horizontal irregularities
How to check mass irregularity in building using etabs
Weight (Mass) Irregularity: Weight (mass) irregularity is defined to exist where the effective mass of any story is more than 150% of the effective mass of an adjacent story. A roof that is lighter than the floor below need not be considered.
Mass irregularity check in etabs
Check for mass limit in etabs
Check for overturning in etabs
How to check overturning in etabs Provision shall be made for the increased forces induced on resisting elements of the structural system resulting from mass due to eccentricity between the center of application of the lateral forces and the center of rigidity of the lateral-force-resisting system. For accidental mass requirements for seismic design Stability against overturning.
Every structure shall be designed to resist the overturning effects caused by the lateral forces . Horizontal Mass distorsions
Provisions shall be made for the increased shears resulting from horizontal mass where diaphragms are not flexible. The most severe load combination for each element shall be considered for design. The mass design moment at a given story shall be the moment resulting from eccentricities between applied design lateral forces at levels above that story and the vertical-resisting elements in that story plus an accidental mass.
The accidental mass moment shall be determined by assuming the mass is displaced . Where mass irregularity exists, the effects shall be accounted for by increasing the accidental mass at each level by an amplification factor
Mass irregularity to be considered when diaphragms are not flexible Mass irregularity shall be considered to exist when the maximum story drift, computed including accidental mass, at one end of the structure transverse to an axis is more than 1.2 times the average of the story drifts of the two ends of the structure. How to fix overturning in building Fix mass irregularity
How to resolve mass irregularity in building design
Calculate weight irregularity
#etabs #engineering #design
bro plz upload a tutorial on safe and also grade beam and thnx for this tutorial very informative
Sure
thank you so much,a question..do we need to consider the story above and below or only below story..?? for checking mass irregularity
Above .
@@EngineeringLearningPlatform Only above story you mean..??
yes
that's good to know mass irregularity but what about creating mass irregularity means how can we create mass irregularity in any selected floors to know the effect of mass irregularity on structures ,example increasing of mass by 200%,300% & 400 % please ?
Watch "Mass irregularity check in etabs tutorial"
why educational excel files are not free?
Dear, it's a very minim charge for the hardwork and idea .
What to do if mass irregularities exists
Usually it is used to meet criteria for performing response spectrum analysis
How to resolve mass irregularity sir?
It doesn't need to be resolved. It's just a classification
should we avoid this or work on it to pass?
This is a common thing found in most of buildings, we cannot avoid this in most cases however this is to classify building as regular or irregular to apply further dynamic scaling or other checks. For details you can check link in description for our udemy course
@@EngineeringLearningPlatform in which cases we can avoid this?
@@ishworsinghsaud6378 none