Performance Based Design of a Steel Frame Hotel

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Presentation transcript:

Performance Based Design of a Steel Frame Hotel

Performance based design of a steel frame hotel 3 structural elements Beam Column Wall 3 compartments Guest room Conference room Kitchen Performance Based Pyramid

Assumptions: Geometric design of the hotel 3 Stories 20X20X12 ft bays Design of compartments Room dimensions and windows Calculating the loads placed on each of the structural elements

Dimensions of the rooms Finding total area Finding total area of opening (windows) Finding the ventilation factor Find the maximum temperature

Hotel Guest Room 3 windows 20ft by 20ft Fuel load is 495 Fv=.04

Conference Room 4 windows 20ft by 20ft Fuel load is 760 Assuming the conference rooms to be the same as ‘Office’ Fv=.08

Hotel Kitchen 6 windows 20ft by 40ft Fuel load is 740 The mean value Fv=.08

Used Program Called Safir, to analyze the thermal and structural Analyzing a beam and column Protected and non-protected Limiting criteria 550 Celsius Beam Using thermal analysis No fire protection With fire protection (insulation)

With fire protection (insulation) Columns Fire protection and non protection No fire protection Both beams and columns are over the limiting temperature criteria of 550 degree Celsius Minimum of 30 mm of insulation is need

Beams Structural analysis No insulation Beam fails in 25 mins Required to have 90 mins or 1.5 mins With insulation Beam fails in 174 mins or 2.9 hrs Well over required performance

Column With insulation Column does not fail at 4 hours Well over the 2 hour performance criteria. No insulation Fails at 27 mins Below the performance criteria of 2 hours.

Gypsum wallboard rating The performance criteria is to have a one hour fire rating. Type X 5/8 inch Wall One layer 5/8 inch Type X Two layers 5/8 inch Type X on the side most likely to be exposed to fire.

Conclusion Beams and Columns Need to have fire protection (insulation) More then 30 mm 5/8” Type X gypsum wallboard One side with one layer Other side with two layers Facing the side most likely to have a fire

Questions??