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1
STEEL BUILDINGEXTERIOR WALL
INTERFACE ISSUES
Rocky Mountain Steel Construction Association
Structural Engineers Association of Colorado
Structural Engineers Association of Colorado Steel Liaison Committee
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2
Past products from SEAC and RMSCA
1. AESS Guidelines – Prepared to assist in defining finishing and cost issues associated with AESS Steel
2. Input for the 2005 AISC Code of Standard Practice
3. Checklist for Structural Design Drawings
4. Pre-Detailing Meeting Agenda/Checklist
5. Current project: Improving the Shop Drawing Process
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3
STEEL BUILDINGEXTERIOR WALL
INTERFACE ISSUES
ENGINEERING
TOLERANCE
CONSTRUCTABILITY
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4STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
consulting structural engineer = EORconsulting structural engineer = EOR
architect = AORarchitect = AOR
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5STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
EOR’s primary role(s)EOR’s primary role(s)
•design team member•design team member
•assist the AOR with issues that involve engineering•assist the AOR with issues that involve engineering
•prime design team contact to the structural steel detailer•prime design team contact to the structural steel detailer
•insures the completed structure is safe and performs as expected•insures the completed structure is safe and performs as expected
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6STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
information gatheringinformation gathering
AOR to determine skin typeAOR to determine skin type
AOR to coordinate application with the EORAOR to coordinate application with the EOR
EOR to insure structural adequacy at exterior wall interfaceEOR to insure structural adequacy at exterior wall interface
EOR to define connection between exterior wall and structural frameEOR to define connection between exterior wall and structural frame
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7STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
what is the goal?what is the goal?
produce clear information on the design documentsproduce clear information on the design documentsassure all parties know who is responsible for what aspect of the design
assure all parties know who is responsible for what aspect of the design
meet with fabricators, erectors and exterior wall suppliersmeet with fabricators, erectors and exterior wall suppliers
insure that the GC understands the desired final expectationsinsure that the GC understands the desired final expectations
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8STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
illustrate the eccentricities for which the steel frame is designed and/or the eccentricities for which the exterior wall must be designed
illustrate the eccentricities for which the steel frame is designed and/or the eccentricities for which the exterior wall must be designed
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9STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
keeping the column line pushed out as far as possible could result in cost savings to the owner
keeping the column line pushed out as far as possible could result in cost savings to the owner
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10STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
check pointscheck points
if possible, move the column line outwardif possible, move the column line outwardunderstand the exterior wall system and the desired interface with the structural frame
understand the exterior wall system and the desired interface with the structural frame
meet with fabricators, erectors and exterior wall suppliersmeet with fabricators, erectors and exterior wall suppliers
understand the tolerances involved with the projectunderstand the tolerances involved with the project
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11STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
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12STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
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13STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
3 : the allowable deviation from a standard; especially : the range of variation permitted in maintaining a specified dimension
3 : the allowable deviation from a standard; especially : the range of variation permitted in maintaining a specified dimension
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14STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
the range of variation permitted in maintaining a specified dimension
the range of variation permitted in maintaining a specified dimension
3 : the allowable deviation from a standard; especially :
3 : the allowable deviation from a standard; especially :
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15STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
the range of variation permitted in maintaining a specified dimension
the range of variation permitted in maintaining a specified dimension
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16STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
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17STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
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18STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
design team
may not know WHO
design team
may not know WHO
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19STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
owner retains consultantsowner retains consultants
contract documents progress
contract documents progress
general contractor is retained
general contractor is retained
steel and exterior wall subs are secured
steel and exterior wall subs are secured
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20STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
design team issues DD contract
documents
design team issues DD contract
documents
general contractor releases DD docs
for bid
general contractor releases DD docs
for bid
design team issues CD’sdesign team issues CD’s
general contractor has steel sub under contractgeneral contractor has
steel sub under contract
design team issues 100%
CD’s
design team issues 100%
CD’s
general contractor releases steel sub to
proceed with detailing
general contractor releases steel sub to
proceed with detailing
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21STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
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22STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
general
contractor detailing
approval
ste
el s
ub
s
tart
s
project begins
steel to be purchased
steel framecritical
path
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23STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
steel framecritical
path??
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24STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
submittal schedulesubmittal schedule approval dwgsapproval dwgsshop dwgsshop dwgsSub’s RFI’sSub’s RFI’serection schederection sched
coordinationcoordinationofofdesigndesign
must happenmust happen
of
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25STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
clear
intent
predictable
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26STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
leveling the playing fieldleveling the playing field
preparationpreparation
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27STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
preparationpreparation
section 6.4section 6.4
“fabrication tolerance”
“fabrication tolerance”
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28STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
preparationpreparationsteel tolerancesteel tolerancesweepsweeprollrollcambercamber
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29STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
preparationpreparation
section 7.5section 7.5
“installation of anchor
rods foundation bolts and
other embedded
items”
“installation of anchor
rods foundation bolts and
other embedded
items”
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30STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
preparationpreparation
section 7.12section 7.12
“structural steel frame tolerance”
“structural steel frame tolerance”
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31STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
preparationpreparation
section 7.13section 7.13
“erection tolerances”“erection
tolerances”
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32STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
preparationpreparation
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33STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
preparationpreparation
section 7.13.2
section 7.13.2
“in the design of steel structures, the owners designated representative for design shallshall provide for the necessary clearance and adjustments for material furnished by other trades to accommodate the mill tolerance, fabrication tolerances and erection tolerance as accepted in this Code for the Structural Steel frame.”
“in the design of steel structures, the owners designated representative for design shallshall provide for the necessary clearance and adjustments for material furnished by other trades to accommodate the mill tolerance, fabrication tolerances and erection tolerance as accepted in this Code for the Structural Steel frame.”
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34STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
preparationpreparation
responsibilityresponsibilityresponsibilityresponsibility
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35STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
suggested detailssuggested detailsdimensionsdimensionsand usage of tolerancesand usage of tolerances
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36STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
•section 7.5 installation of anchor rods, foundation bolts and other embedded items
•section 7.5 installation of anchor rods, foundation bolts and other embedded items
-associated AISC tolerances--associated AISC tolerances-
•section 6.4 fabrication tolerance•section 6.4 fabrication tolerance
•section 7.13 erection tolerances•section 7.13 erection tolerances
•section 7.12 structural steel frame tolerances•section 7.12 structural steel frame tolerances
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37STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
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38STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
2005 AISC code of standard practice2005 AISC code of standard practice
-section 7.12--section 7.12-
“the accumulation of the mill tolerance and the fabrication tolerances shall not cause the erection tolerance to be exceeded”
“the accumulation of the mill tolerance and the fabrication tolerances shall not cause the erection tolerance to be exceeded”
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39STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
2005 AISC code of standard practice2005 AISC code of standard practice
-section 7.13--section 7.13-
“erection tolerances shall be defined relative to the member working points and working lines”
“erection tolerances shall be defined relative to the member working points and working lines”
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40STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
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41STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
the more understanding the
design team has of the interface of the
structural frame to the exterior wall system, tolerance will become a useful tool and not a
problem for the construction team
the more understanding the
design team has of the interface of the
structural frame to the exterior wall system, tolerance will become a useful tool and not a
problem for the construction team
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42STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
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46STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
has or das will need to be
field installed
has or das will need to be
field installed
appropriate flange widthappropriate flange width
fewer restrictions at
the roof
fewer restrictions at
the roof
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47STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
projectsuccessproject
success
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48STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
•good communications•good communications
•heroes are rewarded if proper attention is given•heroes are rewarded if proper attention is given•review and understand structural framing system to control cost•review and understand structural framing system to control cost•select edge materials that will perform with the exterior wall system
•select edge materials that will perform with the exterior wall system
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49STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
•edge materials that account for tolerance variations•edge materials that account for tolerance variations•clearly show all necessary offset dimensions on the design documents
•clearly show all necessary offset dimensions on the design documents•use the AISC code of standard practice, ASTM and experiences of the construction team
•use the AISC code of standard practice, ASTM and experiences of the construction team
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STEEL BUILDINGEXTERIOR WALL
INTERFACE ISSUES
ENGINEERING
TOLERANCE
CONSTRUCTABILITY
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51
STEEL BUILDINGEXTERIOR WALL
INTERFACE ISSUES
ENGINEERING
TOLERANCE
CONSTRUCTABILITY
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52STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
CONSTRUCTABILITYCONSTRUCTABILITY
•brief history of project evolution•brief history of project evolution
•EOR drawing process•EOR drawing process
•recommendations•recommendations
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53STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
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56STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
BRIEF HISTORY OF PROJECT EVOLUTION
BRIEF HISTORY OF PROJECT EVOLUTION
PRIOR TO 1950’SPRIOR TO 1950’S
1. ARCHITECT – MASTER BUILDER1. ARCHITECT – MASTER BUILDER
2. DRAWINGS – DRAWN IN INK ON LINEN & VERY DETAILED
2. DRAWINGS – DRAWN IN INK ON LINEN & VERY DETAILED
3. STRUCTURE INCLUDED IN ARCHITECTURAL DRAWINGS
3. STRUCTURE INCLUDED IN ARCHITECTURAL DRAWINGS
4. BUILDING SHAPES – RECTANGULAR, 1-3 STORIES
4. BUILDING SHAPES – RECTANGULAR, 1-3 STORIES
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BRIEF HISTORY OF PROJECT EVOLUTION
BRIEF HISTORY OF PROJECT EVOLUTION
PRIOR TO 1950’SPRIOR TO 1950’S
7. GC’S SELF PERFORMED ALL OF THE WORK7. GC’S SELF PERFORMED ALL OF THE WORK
5. EXTERIOR MATERIALS – LIMITED TO STONE, MASONRY, AND PUNCHED WOOD WINDOWS
5. EXTERIOR MATERIALS – LIMITED TO STONE, MASONRY, AND PUNCHED WOOD WINDOWS
6. FLOOR AND ROOF SYSTEMS – WOOD OR CONCRETE
6. FLOOR AND ROOF SYSTEMS – WOOD OR CONCRETE
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BRIEF HISTORY OF PROJECT EVOLUTION
BRIEF HISTORY OF PROJECT EVOLUTION
1950’S – 1960’S1950’S – 1960’S
1. STRUCTURAL SYSTEMS EXPANDED TO INCLUDE STRUCTURAL STEEL, STEEL JOISTS AND PRECAST CONCRETE
1. STRUCTURAL SYSTEMS EXPANDED TO INCLUDE STRUCTURAL STEEL, STEEL JOISTS AND PRECAST CONCRETE
2. STRUCTURAL DRAWINGS BECAME SEPARATE DOCUMENTS
2. STRUCTURAL DRAWINGS BECAME SEPARATE DOCUMENTS
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59STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
BRIEF HISTORY OF PROJECT EVOLUTION
BRIEF HISTORY OF PROJECT EVOLUTION
1950’S – 1960’S1950’S – 1960’S
3. GC’S STARTED BROKERING WORK OUT TO SUBCONTRACTORS
3. GC’S STARTED BROKERING WORK OUT TO SUBCONTRACTORS
4. STEEL SHOP DRAWING PREPARATION BY IN-HOUSE ENGINEERS
4. STEEL SHOP DRAWING PREPARATION BY IN-HOUSE ENGINEERS
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BRIEF HISTORY OF PROJECT EVOLUTION
BRIEF HISTORY OF PROJECT EVOLUTION
1970’S1970’S
1. BEGINNING OF MORE COMPLEX EXTERIOR WALL SYSTEMS
1. BEGINNING OF MORE COMPLEX EXTERIOR WALL SYSTEMS
2. DRAWINGS PREPARED ON MYLAR AND PIN-BAR SYSTEM
2. DRAWINGS PREPARED ON MYLAR AND PIN-BAR SYSTEM
3. COMBINATION OF STRUCTURAL AND EXTERIOR WALL SYSTEMS INCREASED
3. COMBINATION OF STRUCTURAL AND EXTERIOR WALL SYSTEMS INCREASED
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BRIEF HISTORY OF PROJECT EVOLUTION
BRIEF HISTORY OF PROJECT EVOLUTION
1980’S1980’S
1. ADVENT OF CAD1. ADVENT OF CAD
2. BUILDING COMPLEXITY SKYROCKETS2. BUILDING COMPLEXITY SKYROCKETS
3. MORE EXTERIOR WALL SYSTEM CHOICES3. MORE EXTERIOR WALL SYSTEM CHOICES
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BRIEF HISTORY OF PROJECT EVOLUTION
BRIEF HISTORY OF PROJECT EVOLUTION
1980’S1980’S
4. GC LOYALTY TO SUBCONTRACTORS STARTS TO DIMINISH
4. GC LOYALTY TO SUBCONTRACTORS STARTS TO DIMINISH
5. EOR SELECTION SHIFTS FROM QUALIFICATION TO FEE BASIS
5. EOR SELECTION SHIFTS FROM QUALIFICATION TO FEE BASIS
6. STEEL SUBCONTRACTORS START CUTBACK OF SHOP DRAWING STAFF AND BEGIN TO OUTSOURCE
6. STEEL SUBCONTRACTORS START CUTBACK OF SHOP DRAWING STAFF AND BEGIN TO OUTSOURCE
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BRIEF HISTORY OF PROJECT EVOLUTION
BRIEF HISTORY OF PROJECT EVOLUTION
1990’S1990’S
1. BUILDING SHAPES AND EXTERIOR SKINS FURTHER EVOLVE INTO UNTESTED CONSTRUCTION
1. BUILDING SHAPES AND EXTERIOR SKINS FURTHER EVOLVE INTO UNTESTED CONSTRUCTION
2. EOR & SUBCONTRACTOR SELECTION BASED ON LOW DOLLARS
2. EOR & SUBCONTRACTOR SELECTION BASED ON LOW DOLLARS
3. “GIVE & TAKE” ATMOSPHERE OF CONSTRUCTION BEGINS TO ERODE
3. “GIVE & TAKE” ATMOSPHERE OF CONSTRUCTION BEGINS TO ERODE
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BRIEF HISTORY OF PROJECT EVOLUTION
BRIEF HISTORY OF PROJECT EVOLUTION
1990’S1990’S
4. GC LOYALTY TO SUBCONTRACTORS IS RARELY SEEN
4. GC LOYALTY TO SUBCONTRACTORS IS RARELY SEEN
5. COMPETITION FOR LOWER COST FORCES LESSER QUALITY DOCUMENTS
5. COMPETITION FOR LOWER COST FORCES LESSER QUALITY DOCUMENTS
6. TECHNOLOGY EXPLOSION LEAVES EXPERIENCE ON THE SIDELINE
6. TECHNOLOGY EXPLOSION LEAVES EXPERIENCE ON THE SIDELINE
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BRIEF HISTORY OF PROJECT EVOLUTION
BRIEF HISTORY OF PROJECT EVOLUTION
1990’S1990’S
7. COORDINATION OF DOCUMENTS WITH OTHER TRADES WANES
7. COORDINATION OF DOCUMENTS WITH OTHER TRADES WANES
8. STEEL SUBCONTRACTORS OUTSOURCE MAJORITY OF SHOP DRAWING PREPARATION
8. STEEL SUBCONTRACTORS OUTSOURCE MAJORITY OF SHOP DRAWING PREPARATION
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BRIEF HISTORY OF PROJECT EVOLUTION
BRIEF HISTORY OF PROJECT EVOLUTION
2000’S2000’S
1. SUBCONTRACTOR COMPETITION IS INTENSE, SO REPEAT WORK IS DIFFICULT TO OBTAIN
1. SUBCONTRACTOR COMPETITION IS INTENSE, SO REPEAT WORK IS DIFFICULT TO OBTAIN
2. TIGHT MARGINS FORCE LESS “GIVE & TAKE”
2. TIGHT MARGINS FORCE LESS “GIVE & TAKE”
3. SHOP DRAWINGS ARE DIFFICULT TO PREPARE
3. SHOP DRAWINGS ARE DIFFICULT TO PREPARE
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67STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
BRIEF HISTORY OF PROJECT EVOLUTION
BRIEF HISTORY OF PROJECT EVOLUTION
2000’S2000’S
4. LOWER CONSULTANT FEES AND TIGHT SCHEDULES RESULT IN LESS COMPLETE DOCUMENTS
4. LOWER CONSULTANT FEES AND TIGHT SCHEDULES RESULT IN LESS COMPLETE DOCUMENTS
5. GC REACTION – CM, NEGOTIATE IN ORDER TO HELP CONTROL DESIGN & COST
5. GC REACTION – CM, NEGOTIATE IN ORDER TO HELP CONTROL DESIGN & COST
6. ARCHITECTURAL EXPERIENCE LEVEL IN PREPARING DOCUMENTS DROPS
6. ARCHITECTURAL EXPERIENCE LEVEL IN PREPARING DOCUMENTS DROPS
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BRIEF HISTORY OF PROJECT EVOLUTION
BRIEF HISTORY OF PROJECT EVOLUTION
2000’S2000’S7. TIMELY, BUILDABLE INPUT FROM
ARCHITECT TO SER DROPS OFF RESULTING IN INCOMPLETE COORDINATION OF DRAWINGS
7. TIMELY, BUILDABLE INPUT FROM ARCHITECT TO SER DROPS OFF RESULTING IN INCOMPLETE COORDINATION OF DRAWINGS
8. MIX OF EXTERIOR WALL SYSTEMS INCREASES
8. MIX OF EXTERIOR WALL SYSTEMS INCREASES
9. EFFECTIVE COMMUNICATION TRADED FOR EMAIL
9. EFFECTIVE COMMUNICATION TRADED FOR EMAIL
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70STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
EOR DRAWING PROCESSEOR DRAWING PROCESS
1. SCHEMATIC DRAWINGS PROVIDED BY ARCHITECT TO EOR
1. SCHEMATIC DRAWINGS PROVIDED BY ARCHITECT TO EOR
2. EOR FRAMES BUILDING2. EOR FRAMES BUILDING
3. TYPICAL EDGE CONDITIONS ARE DEVELOPED BY EOR BASED ON IDEAS BY ARCHITECT
3. TYPICAL EDGE CONDITIONS ARE DEVELOPED BY EOR BASED ON IDEAS BY ARCHITECT
4. AS ARCHITECTURAL DRAWINGS DEVELOP, EOR ADJUSTS STRUCTURAL DOCUMENTS
4. AS ARCHITECTURAL DRAWINGS DEVELOP, EOR ADJUSTS STRUCTURAL DOCUMENTS
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RECOMMENDATIONSRECOMMENDATIONS1. EOR MUST ASSIST ARCHITECT WITH
CONSTRUCTABILITY ISSUES AS DOCUMENTS ARE DEVELOPED
1. EOR MUST ASSIST ARCHITECT WITH CONSTRUCTABILITY ISSUES AS DOCUMENTS ARE DEVELOPED
2. EOR SHOULD SEEK CONSTRUCTABILITY INPUT FROM AFFECTED TRADES AS DOCUMENTS ARE PREPARED
2. EOR SHOULD SEEK CONSTRUCTABILITY INPUT FROM AFFECTED TRADES AS DOCUMENTS ARE PREPARED
3. FABRICATOR SHOULD IDENTIFY CONSTRUCTABILITY ISSUES UPFRONT
3. FABRICATOR SHOULD IDENTIFY CONSTRUCTABILITY ISSUES UPFRONT
4. THE GC MUST COORDINATE CONSTRUCTABILITY ISSUES BETWEEN TRADES
4. THE GC MUST COORDINATE CONSTRUCTABILITY ISSUES BETWEEN TRADES
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75STEEL BUILDING EXTERIOR WALL INTERFACE ISSUESSTEEL BUILDING EXTERIOR WALL INTERFACE ISSUES
RECOMMENDATIONSRECOMMENDATIONS1. EOR MUST ASSIST ARCHITECT WITH
CONSTRUCTABILITY ISSUES AS DOCUMENTS ARE DEVELOPED
1. EOR MUST ASSIST ARCHITECT WITH CONSTRUCTABILITY ISSUES AS DOCUMENTS ARE DEVELOPED
2. EOR SHOULD SEEK CONSTRUCTABILITY INPUT FROM AFFECTED TRADES AS DOCUMENTS ARE PREPARED
2. EOR SHOULD SEEK CONSTRUCTABILITY INPUT FROM AFFECTED TRADES AS DOCUMENTS ARE PREPARED
3. FABRICATOR SHOULD IDENTIFY CONSTRUCTABILITY ISSUES UPFRONT
3. FABRICATOR SHOULD IDENTIFY CONSTRUCTABILITY ISSUES UPFRONT
4. THE GC MUST COORDINATE CONSTRUCTABILITY ISSUES BETWEEN TRADES
4. THE GC MUST COORDINATE CONSTRUCTABILITY ISSUES BETWEEN TRADES
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RECOMMENDATIONSRECOMMENDATIONS
5. FABRICATOR MUST PARTICIPATE IN COORDINATION OF AFFECTED TRADES
5. FABRICATOR MUST PARTICIPATE IN COORDINATION OF AFFECTED TRADES
6. EOR & ARCHITECT NEED TO ACCOMMODATE CONSTRUCABILITY ISSUES THAT ARISE DURING CONSTRUCTION
6. EOR & ARCHITECT NEED TO ACCOMMODATE CONSTRUCABILITY ISSUES THAT ARISE DURING CONSTRUCTION
7. TIMELY PRE-CONSTRUCTION MEETINGS ARE ESSENTIAL
7. TIMELY PRE-CONSTRUCTION MEETINGS ARE ESSENTIAL
8. CONSULTANTS MUST GET FIELD EXPERIENCE
8. CONSULTANTS MUST GET FIELD EXPERIENCE
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ENGINEERING
TOLLERANCE
CONSTRUCTABILITY
STEEL BUILDINGEXTERIOR WALL
INTERFACE ISSUES
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STEEL BUILDINGEXTERIOR WALL
INTERFACE ISSUES
ENGINEERING
TOLLERANCE
CONSTRUCTABILITY
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STEEL BUILDINGEXTERIOR WALL
INTERFACE ISSUES
ENGINEERING
TOLERANCE
CONSTRUCTABILITY
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