Senior Thesis Structural Option Ryan Friis Spring 2003 111 Morgan St. Chicago, IL 111 Morgan St....
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Transcript of Senior Thesis Structural Option Ryan Friis Spring 2003 111 Morgan St. Chicago, IL 111 Morgan St....
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
111 Morgan St.Chicago, IL
Ryan FriisStructural Option
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Presentation Outline
Existing ConditionsExisting Conditions
Structural RedesignStructural Redesign
Cost AnalysisCost Analysis
Fire Protection RequirementsFire Protection Requirements
Acoustics Acoustics
Construction ConsiderationsConstruction Considerations
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Project TeamOwner:Owner:
Architect:Architect:
Engineers:Engineers:
GC:GC:
Winthrop Properties, LLC.Winthrop Properties, LLC.
Fitzgerald Associates ArchitectsFitzgerald Associates Architects
Samartano & Co. (Structural)Samartano & Co. (Structural)
Ketchmark & Assoc. (Mechanical)Ketchmark & Assoc. (Mechanical)
Ketchmark & Associates (Electrical)Ketchmark & Associates (Electrical)
McClier Engineers (Civil)McClier Engineers (Civil)
Walsh Construction of IllinoisWalsh Construction of Illinois
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Location
Downtown ChicagoDowntown Chicago
Corner of Adams & Corner of Adams & Morgan St.Morgan St.
5 blocks west of the 5 blocks west of the Sears Tower Sears Tower
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Building Info
9 Story Condominium Building9 Story Condominium Building
Total Building Height - 98’-0”Total Building Height - 98’-0”
166 Units Located on 7 Floors166 Units Located on 7 Floors
180,000 Sq. ft. of residential space180,000 Sq. ft. of residential space
Prices range from $200,000 – $450,000Prices range from $200,000 – $450,000
184 Parking Spaces on 3 Floors184 Parking Spaces on 3 Floors
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Building Info
1, 2 or 3 Bedroom 1, 2 or 3 Bedroom unitsunitsOak hardwood Oak hardwood floorsfloorsGranite countertopsGranite countertopsGas fireplaces in Gas fireplaces in every unitevery unitWalk-out balconiesWalk-out balconies
Luxury Condominiums
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Residential Floor Plan
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Existing Conditions
StructuralStructural 2-way Concrete slab gravity system2-way Concrete slab gravity system
Typical bay size of 22’-0” x 25’-8”Typical bay size of 22’-0” x 25’-8”
20” diameter columns of varying strength20” diameter columns of varying strength Floor to floor height of 10’-9”Floor to floor height of 10’-9” 8 in. shear walls located in cores8 in. shear walls located in cores
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Existing Conditions
Structural Floor PlanStructural Floor Plan
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Existing Conditions
Structural Structural Original Design - Chicago Building Code 1999Original Design - Chicago Building Code 1999
Seismic Design not requiredSeismic Design not required
Redesign - IBC 2000Redesign - IBC 2000 Assume wind loads controlAssume wind loads control
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Existing ConditionsArchitecturalArchitectural Exposed concrete Exposed concrete
structurestructure Unpainted mechanical Unpainted mechanical
ductwork and sprinkler ductwork and sprinkler pipingpiping
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Redesign Goals
Provide finished ceiling at 9’-6” minimumProvide finished ceiling at 9’-6” minimum
Add 2 floors of residential units & 1 Add 2 floors of residential units & 1 parking floorparking floor
Reduce column footprintReduce column footprint
Keep existing floor plan intactKeep existing floor plan intact
Avoid major cost increasesAvoid major cost increases
Use existing concrete parking garageUse existing concrete parking garage
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Structural Redesign
Gravity systems consideredGravity systems considered
Steel JoistsSteel Joists
Standard W shapesStandard W shapes
Composite W shapesComposite W shapes
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Structural Redesign
Composite Steel Design best choiceComposite Steel Design best choiceSaves 113 tons versus non-composite designSaves 113 tons versus non-composite design
Allows for greater spacing than steel joist systemAllows for greater spacing than steel joist system
Easier to frame balconies with W shapes opposed Easier to frame balconies with W shapes opposed to joiststo joists
Does not require a fire rated ceilingDoes not require a fire rated ceiling
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Structural RedesignFraming planFraming plan Beams span E-WBeams span E-W Span length 14’ to 30’Span length 14’ to 30’ Space 12’-9” o. c.Space 12’-9” o. c. Beams cantilever over girder to create balcony framingBeams cantilever over girder to create balcony framing
Typical Framing Plan
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Composite Steel Design
Typical beam sizeTypical beam size W12x19 [10] with ¾” camber & W14x30 [12]W12x19 [10] with ¾” camber & W14x30 [12]
6.25” lightweight concrete deck on 3” decking6.25” lightweight concrete deck on 3” decking
Beams cambered to account for wet concrete Beams cambered to account for wet concrete loadload
Live load member deflection limited to L/360Live load member deflection limited to L/360
Typical connection uses 1/4” shear tab with 3 - Typical connection uses 1/4” shear tab with 3 - A325 N bolts and 3/16” weldA325 N bolts and 3/16” weld
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Composite Steel Design
Floor to floor height increased to 12’-6”Floor to floor height increased to 12’-6” Maintains 9’-6”’ ceilingsMaintains 9’-6”’ ceilings Leaves room for mechanical systems and Leaves room for mechanical systems and
provides space for finished drywall ceilingprovides space for finished drywall ceiling
Typical columns are W8 and W10Typical columns are W8 and W10 Maximum column size 15”x13” when framedMaximum column size 15”x13” when framed
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Structural Redesign
Floor vibrations of 0.43%g maximumFloor vibrations of 0.43%g maximum
Overall building is lighter by 30%Overall building is lighter by 30%
Permits use of 6,000 psi concrete in parking Permits use of 6,000 psi concrete in parking garagegarage Down from 8000 psi in existing systemDown from 8000 psi in existing system
Existing caisson foundation can be used Existing caisson foundation can be used
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Structural RedesignLateral Force Resisting System OptionsLateral Force Resisting System Options
Column layout prevents use of braced framesColumn layout prevents use of braced frames
Consider moment framesConsider moment frames
Modify existing shear wall systemModify existing shear wall system
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Revised Lateral Design
Existing shear wall layout maintainedExisting shear wall layout maintainedShear walls increased in size from 8” to 12” in E-W directionShear walls increased in size from 8” to 12” in E-W directionWalls remain 8” in N-S directionWalls remain 8” in N-S directionTotal drift limited to H/600Total drift limited to H/600Actual drift of 2.5” in E-W directionActual drift of 2.5” in E-W directionAll walls use 4,000 psi concreteAll walls use 4,000 psi concrete
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Cost Analysis
Cost analysis for structural systemCost analysis for structural system All costs calculated using R.S. Means and All costs calculated using R.S. Means and
adjusted to 2001 dollars in Chicago, ILadjusted to 2001 dollars in Chicago, IL Costs include material, labor, equipment, and Costs include material, labor, equipment, and
overhead and profitoverhead and profit
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Cost Analysis
Concrete cost per floorConcrete cost per floor $384,312$384,312
Composite steel cost per floorComposite steel cost per floor $476,190 $476,190 ($390,700 excluding ceiling)($390,700 excluding ceiling)
Includes:Includes: extra building façadeextra building façade $27,429$27,429
fireproofingfireproofing $27,731$27,731
additional partition heightadditional partition height$8,450$8,450
finished ceilingfinished ceiling $85,500$85,500
Cost ReductionsCost Reductions 6,000 psi concrete in garage and 4,000 psi 6,000 psi concrete in garage and 4,000 psi
concrete in remaining shear walls concrete in remaining shear walls $38,000$38,000
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Fire Protection
2 Hr. fire rating required between floors and units2 Hr. fire rating required between floors and units As builtAs built
8.5” two-way slab achieves fire rating8.5” two-way slab achieves fire rating Steel systemSteel system
6.25” Slab on 3” USD Lok-Floor provides a 2 hr 6.25” Slab on 3” USD Lok-Floor provides a 2 hr rating without fire proofingrating without fire proofing
1 1/8”+ Spray-on Fire resistive material required on 1 1/8”+ Spray-on Fire resistive material required on beams and columns (vermiculite based)beams and columns (vermiculite based)
Walls between units need to extend slab to slabWalls between units need to extend slab to slab Fireproofing in gaps created by corrugated deckFireproofing in gaps created by corrugated deck
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Acoustics
Only minor changes between units on same Only minor changes between units on same floorfloor
Transmission between floors is a concernTransmission between floors is a concern
STCSTC IICIIC
Acceptable:Acceptable: 60 60 5454
Concrete:Concrete: 65 65 6060
Steel:Steel: 62 62 6060
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Construction Considerations
Use same erection sequence as original systemUse same erection sequence as original system Shear walls in North first then steelShear walls in North first then steel Shear walls in South during steel erection in North Shear walls in South during steel erection in North
ScheduleSchedule Erection of first steel floor will take an additional weekErection of first steel floor will take an additional week Additional 6 weeks overall for 3 additional floorsAdditional 6 weeks overall for 3 additional floors
Site managementSite management Just in time delivery of steel for daily erectionJust in time delivery of steel for daily erection Use alley on building’s east side to stage trucksUse alley on building’s east side to stage trucks
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Conclusions
Composite steel systemComposite steel system Accommodated 2 additional floorsAccommodated 2 additional floors Provided easy installation of ceilingProvided easy installation of ceiling Reduced column sizeReduced column size Improved overall appearance of condo unitsImproved overall appearance of condo units Structural system costs equivalent to existingStructural system costs equivalent to existing
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Recommendation
Maximum luxury appearance is gained Maximum luxury appearance is gained with the steel systemwith the steel system Due to the exposed columns in the existing Due to the exposed columns in the existing
system it is not worth adding the ceilingsystem it is not worth adding the ceiling If additional floors were added to the concrete If additional floors were added to the concrete
system the columns could become largersystem the columns could become larger
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Thank You
Dave Heselbarth & Dave Heselbarth & Walsh ConstructionWalsh Construction
AE FacultyAE Faculty
55thth Year Students Year Students
Senior ThesisSenior ThesisStructural OptionStructural Option
Ryan FriisRyan FriisSpring 2003Spring 2003
111 Morgan St.111 Morgan St.Chicago, ILChicago, IL
Questions