151 First Side Pittsburgh, PA introduction introduction overview proposal structural depth acoustics breadth cm breadth William J. Buchko conclusions Structural Option Senior Thesis Senior Thesis April 14 th , 2008 Advisor: Kevin Parfitt 151 First Side William J. Buchko
Presentation Outline Presentation Outline � Overview � Overview introduction introduction � Proposal overview � Structural Depth � Structural Depth proposal � Acoustics Breadth structural depth � Construction Management Breadth acoustics breadth � Conclusions cm breadth � Acknowledgements conclusions � Questions Q 151 First Side William J. Buchko
Overview Overview � Location: introduction � Pittsburgh, PA overview overview � Significance: S g ca ce proposal � First condominium built downtown since 1968 structural depth � Architecture: acoustics breadth � 18 stories cm breadth � 82 units 82 it � Open floor plan conclusions � 233,000 SF 233,000 SF 151 First Side William J. Buchko
Overview Overview � Mechanical: introduction � 36.7 Ton roof top unit by AAON � Individual heat pumps overview overview � Electrical: proposal � 120/208 3 phase system structural depth � 1800a main switch acoustics breadth � Lighting: cm breadth � Incandescent downlights in units � Fluorescent downlights and wall conclusions washers in corridors and public areas p 151 First Side William J. Buchko
Overview Overview � Construction: � Construction: introduction � $24M construction cost overview overview � Owned by Zambrano Corp., Ralph A. Falbo, Inc., and EQA Landmark proposal Communities structural depth � Design-build construction � Design-build construction acoustics breadth � Structural: cm breadth � Hambro composite joist floor system Hambro composite joist floor system � Braced frame and moment conclusions connection lateral system y 151 First Side William J. Buchko
Proposal Proposal � Structural Depth p introduction � Decrease cost and increase performance by using typical structural overview systems systems proposal proposal � Acoustics Breadth structural depth � Analyze proposed systems and check � Analyze proposed systems and check existing systems for acoustical quality acoustics breadth � Construction Management Breadth � Construction Management Breadth cm breadth � Analyze and compare proposed conclusions systems to current systems 151 First Side William J. Buchko
Structural Depth Structural Depth � Floor System � Floor System introduction � Current Hambro MD2000 composite joist system compared to a typical overview composite beam system it b t proposal � Lateral System structural depth structural depth � Current combination braced frame acoustics breadth and moment connection system compared to concrete core, braced co pa ed o co c e e co e, b aced cm breadth frame, and moment connection conclusions systems 151 First Side William J. Buchko
Structural Depth Structural Depth � Current Hambro floor system � Current Hambro floor system introduction � 3¼” concrete on metal decking overview � Supported by joist with composite Supported by joist with composite proposal top chord structural depth structural depth acoustics breadth cm breadth conclusions 151 First Side William J. Buchko
Structural Depth Structural Depth � Proposed composite steel system � Proposed composite steel system introduction � 4” light weight concrete on B-LOK overview decking with 1 stud/ft g proposal � Beams placed at third points of bays structural depth structural depth acoustics breadth cm breadth conclusions 151 First Side William J. Buchko
Structural Depth Structural Depth introduction overview proposal structural depth structural depth acoustics breadth cm breadth conclusions Typical floor beam layout and design 151 First Side William J. Buchko
Structural Depth Structural Depth introduction overview proposal structural depth structural depth acoustics breadth cm breadth conclusions Column redesign 151 First Side William J. Buchko
Structural Depth Structural Depth � Current lateral system � Current lateral system introduction � Combination of braced frames and overview moment connections proposal structural depth structural depth acoustics breadth cm breadth conclusions 151 First Side William J. Buchko
Structural Depth Structural Depth introduction overview proposal structural depth structural depth acoustics breadth cm breadth conclusions Frames long grids 2, 3, and 4 in north-south direction 151 First Side William J. Buchko
Structural Depth Structural Depth introduction overview proposal structural depth structural depth acoustics breadth cm breadth conclusions Frames long grids E and F in east-west direction 151 First Side William J. Buchko
Structural Depth Structural Depth � Concrete core lateral system � Concrete core lateral system introduction � Utilizes concrete core to handle all overview lateral loading g proposal � Unacceptable due to interaction of trades structural depth structural depth acoustics breadth cm breadth conclusions 151 First Side William J. Buchko
Structural Depth Structural Depth � Braced frame lateral system � Braced frame lateral system introduction � Utilizes braced frames for all lateral overview loading g proposal � Quicker installation � Low torsion due to design g structural depth structural depth � Unacceptable due to diagonal acoustics breadth braces within floor plan cm breadth conclusions 151 First Side William J. Buchko
Structural Depth Structural Depth introduction overview proposal structural depth structural depth acoustics breadth cm breadth conclusions Proposed braced frame layout 151 First Side William J. Buchko
Structural Depth Structural Depth � Moment connection lateral system � Moment connection lateral system introduction � Utilizes moment connections for all overview lateral loading g proposal � Fully restrained connections recommended for greater than 10 structural depth structural depth stories acoustics breadth � Unacceptable due to cost and cm breadth scheduling of fully restrained scheduling of fully restrained connections conclusions 151 First Side William J. Buchko
Acoustics Breadth Acoustics Breadth � Floor system � Floor system introduction � Compare current Hambro system to overview p proposed composite beam system p p y proposal � Mechanical system structural depth � Analyze current issues and provide � Analyze current issues and provide alternative solutions acoustics breadth acoustics breadth cm breadth conclusions 151 First Side William J. Buchko
Acoustics Breadth Acoustics Breadth � Current Hambro floor system � Current Hambro floor system introduction � STC of 57 overview � IIC of 30 IIC of 30 proposal � Susceptible to structure born sound structural depth � Susceptible to “wave” phenomenon Susceptible to wave phenomenon acoustics breadth acoustics breadth cm breadth conclusions 151 First Side William J. Buchko
Acoustics Breadth Acoustics Breadth � Proposed beam floor system � Proposed beam floor system introduction � STC of 55 overview � IIC of 35 IIC of 35 proposal � Potential for better low end absorption structural depth � Not susceptible to “wave” acoustics breadth acoustics breadth phenomenon cm breadth conclusions 151 First Side William J. Buchko
Acoustics Breadth Acoustics Breadth � Mechanical system � Mechanical system introduction � Roof top unit in direct line of sight overview with penthouse terraces p proposal � Most common complaint from workers and potential tenants structural depth acoustics breadth acoustics breadth cm breadth conclusions 151 First Side William J. Buchko
Acoustics Breadth Acoustics Breadth � Existing sound levels � Existing sound levels introduction � AAON representative unable or overview unwilling to provide acoustical data g p proposal � Data obtained through IVIE IE-33 Pocket PC and similar unit structural depth � Values were confirmed by 3 rd party acoustics breadth acoustics breadth acoustician cm breadth conclusions 151 First Side William J. Buchko
Acoustics Breadth Acoustics Breadth introduction overview proposal structural depth acoustics breadth acoustics breadth cm breadth conclusions IVIE IE-33 Graph 151 First Side William J. Buchko
Acoustics Breadth Acoustics Breadth � Proposed solutions � Proposed solutions introduction � Acoustical barrier would only provide overview 6dB reduction proposal � System can be relocated to minimize sound levels on terraces structural depth acoustics breadth acoustics breadth cm breadth conclusions 151 First Side William J. Buchko
Acoustics Breadth Acoustics Breadth introduction overview proposal structural depth acoustics breadth acoustics breadth cm breadth conclusions Proposed roof top unit relocation 151 First Side William J. Buchko
Acoustics Breadth Acoustics Breadth � Relocation effects � Relocation effects introduction � 30ft gives 15dB reduction overview � Nosier supply intake now faces Nosier supply intake now faces proposal away from all occupied spaces � Two walls separate unit from structural depth terraces, adding approximately 20dB acoustics breadth acoustics breadth of reduction cm breadth conclusions 151 First Side William J. Buchko
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