Project 1_Comparative study of different storey buildings for Seismic forces

Criteria	Model	Analysis result	Conclusion
Effect of stiffness on Time period	Building-E ( 10 storey with varying column size)	1.731 s
	Building-F( 10 storey with varying column size)	1.735 s
Effects of stiffness on time period	Building-G( 25 storey with varying column size)	1.716
	Building-H( 25 storey with uniform column size)	4.17 s
Effect of mass on time period	Building-H( 25 storey with 3kN/sq.m imposed load)	4.17 s
	Building-J( 25 storey with 3.3kN/sq.m imposed load)	4.416 s
	Building-K( 25 storey with 3.6kN/sq.m imposed load)	4.435 s
Effect of building height on time period	Building-A( 2 storey)	0.5 s
	Building-B( 5 storey)	1.052 s
	Building-F( 10 storey)	1.735 s
	Building-H( 25 storey)	4.17 s
Effect of column orientation on time period	Buiding-B (All floor column sizes 400x400)	1.052 s
	Buiding-C (All floor column sizes 550x300) oriented in X -direction	1.168 s
	Buiding-D (All floor column sizes 300x550) oriented in Y -direction	1.143 s
Effect of flexural stiffness of structural elements on mode shapes	Building-B Flexural stiffness of beams close to nil( zero inertia)	2.62 s
	Full Flexural stiffness of beam( regular)	1.03 s
Effect of Axial stiffness of vertical members on mode shapes	Building-H Axial cross section for column is close to nil ( zero axial area)	5.46 s
	Full Axial cross section for column is ( regular)	4.17 s
Effect of degree of fixity at column base on mode shape	Building -B column support pinned( regular)	1.03 s
	column support fixed	0.958 s

(its k)

• open a new model , create new model as per settings
• custom grids spacing, custom story data as per given question
• go to define dialogue box, material properties create concrete(m30), rebars(HYSD fe415)
• go for section properties, frame settings create new properties for beams and columns assign it to level as given in problem
• go for section properties , slab definition select it
• go to define dialogue box, check load patterns as required
• go to define dialogue box,mass source data set select it and set values
• go to define dialogue box,check load cases are correct
• load combination for concrete design with user define as required
• go to quick draw columns,sketch frame assign to all levels
• go to quick draw beams , draw beams on grid lines by clicking
• go to select , properties , slab definition select it
• Go to select menu bar , properties, frame settings select all beams ex-(B 300x400) give assign frame loads ,distributed set values for each levels
• Go to select menu bar , properties, slab sections assign select it.Go to assign menu bar shell loads , uniform set values
• Go to select menu bar , properties, slab sections select it .Go to assign menu bar , shell, then check in diaphrams apply .( center of mass, lateral loads are calculated)
• Then run analysis and save the model
• In model explorer , go to tables ,analysis results , structural output then model information - table model check as per given criteria problem.
• check the analysis as performed for particular columns, beams, section under given condition specified.