HOTEL LOUISIANA
Dinesha , German, Victor, Suganeya HOTEL LOUISIANA
Design ProcedureLoadsRisaSlabBeamsStrirrupColumnsDeflection and drift
Buildings Front Frame
Building overview
Buildings Side Frame
Building overview
Design AssumptionsFs = 2/3fyAll the floors behave the sameAnalyzed only B1, B2, B3, G2, G3, G5, and G6Wind load was assumed to be only in one directionColumns came to different size than assumed.
Load Calculations
Load Calculations
Design loads on Risa software
Calculations done by RISA Software
Slab Calculations
Our different calculations for slab were for:Top floor (Roof)Mid floorsThe following figure are the moment coefficients for service moment calculations for the slabs.
Slab Design
Beams and Stirrup
Moment Diagram
Reinforcement Bars Equations used 1.2D + 1.6L1.2D + 1W + 1L + 0.5S0.9D + 1W1.4D
Beams/GirdersSelected Moment (k.ft)ROOF5TH FLOORGROUND FLOORB-1225377428B-3374505583G-1291382385G-2261378376G-5498658568G-6429561560B-2562604604
Reinforcement Bars #8 and #10 bars are used in our design
Beams/GirdersSelected BarsROOF5TH FLOORGROUND FLOORB-15 #87 #88#8B-37 #86 #107 #10G-16 #87 #88 #8G-23 #107 #87 #8G-56 #108#107 #10G-69 #87 #107 #10B-27 #107#107 #10
Reinforcement Bars Depth of compression block < 7.5in
t > 0.005 = Tension controlled
Sactual < Smaximum = Minimized cracking
Shear forces
StirrupsBars used was either #3 or #4Spacing varied by beamShear forces obtained from RisaMath cad made it simple to find spacing
Stirrups spacing for HotelStirrups for G-5 and G-6MemberVu (kips)Vn requiredVn actualmax spacingSpacingStirrupstop floor51 (G5) 10th76101.333102.891110#4@10top floor52 (G6) 10th5978.66779.2951110#3@10mid floor71 (G5) 5th6282.66786.597118#3@8mid floor72 (G6) 5th6485.33386.597118#3@8bottom floor 91 (G5) 66.34188.45591.812117#3@7bottom floor 92 (G6)67.8590.46791.812117#3@7
Math Cad Calculation sample
An example of how stirrups were found.
Columns
Axial force
Moments
Columns Design
Drift and Deflections
Beam Deflection
We did not calculate deflection Because we meet ACI requirements for beams
If we plug our values in table 9.3.1.1 we are ok according to the code.
Maximum deflection limitation from ACI code : l/360 = 1.13 inch
Deflection of Hotel Louisiana = 0.36 inch
Drift
Same goes for drift, we found Maximum drift limitation from ACI code : h/400 = 3.795 inch
Max Drift of Hotel Louisiana = 1.1 inch
Maximum drift limitation from ACI code : h/400 = 3.795 inch
Max Drift of Hotel Louisiana = 1.1 inch
ConclussionHotel Louisiana meets ACI requirements.
Could have gone more cost effective design.
Thank you!
Questions?
