brian s. lott the pennsylvania state university department ... · presentation outline brian s....

Brian S. LottBrian S. LottThe Pennsylvania State UniversityThe Pennsylvania State UniversityDepartment of Architectural EngineeringDepartment of Architectural EngineeringStructural EmphasisStructural Emphasis

Bucknell Recreation and Athletic CenterBucknell Recreation and Athletic Center

East Buffalo Township East Buffalo Township -- Lewisburg, PennsylvaniaLewisburg, Pennsylvania

Bucknell Athletic CenterBucknell Athletic CenterOwner :

Bucknell UniversityBucknell UniversityMoore AvenueMoore AvenueLewisburg, PA 17837Lewisburg, PA 17837

Project Players :Ewing Cole Cherry Ewing Cole Cherry BrottBrott -- A/E ServicesA/E ServicesOffice of Physical Plant Office of Physical Plant -- Project ManagingProject ManagingR.S. Mowery & Sons R.S. Mowery & Sons -- CM / Site SuperintendentCM / Site SuperintendentSteel Subcontractor Steel Subcontractor -- Stewart AmosStewart AmosConcrete Subcontractor Concrete Subcontractor -- ZartmanZartman ConstructionConstruction

Construction Dates :StartStart -- July 2001July 2001Target FinishTarget Finish -- March 2003March 2003Arena FinishArena Finish -- December 2002December 2002

Brian S. LottStructural

Presentation OutlinePresentation OutlineBrian S. Lott

Structural

Project Overview; Site, Existing Structures, & ConditionsSite, Existing Structures, & Conditions

Arena Structural Divisions; Levels, Roof, Lateral, Floors, & FoundationLevels, Roof, Lateral, Floors, & Foundation

Depth Study; StructuralStructural

Breadth Studies; Mechanical & ArchitectureMechanical & Architecture

Summary

Questions

Site Plan / Facility OverviewSite Plan / Facility OverviewBrian S. Lott

Structural

Existing ConditionsExisting ConditionsBrian S. Lott

Structural

Building Levels

Ground (1Ground (1stst) Level) Level

Concourse LevelConcourse Level

Mezzanine LevelMezzanine Level

Partial Mezzanine LevelsPartial Mezzanine Levels

Existing Conditions, Cont’d.Existing Conditions, Cont’d.Brian S. Lott

Structural

Roof System


Structural

Lateral System

N N


Structural

Floor SystemComposite Slab/DeckComposite Slab/Deck


Structural

Foundation


Structural

Project Overview; Site, Existing Structures, & Conditions.Site, Existing Structures, & Conditions.

Arena Structural Divisions; Levels, Roof, Lateral, Floors, & Foundation.Levels, Roof, Lateral, Floors, & Foundation.


Structural DepthStructural DepthBrian S. Lott

Structural

Roof FramingLong Span JoistsLong Span JoistsNorthNorth--South Truss ImplementationSouth Truss Implementation

Floor FramingOpen Web Steel Joist with Concrete SlabOpen Web Steel Joist with Concrete Slab

Structural Depth, Cont’d.Structural Depth, Cont’d.Brian S. Lott

Structural

Roof Framing

Truss Truss –– T1T1

Long SpanLong SpanRoof JoistsRoof Joists


Structural

EXISTING Roof Joists

Span = 158’Span = 158’--10”10”Tributary Width = 11’Tributary Width = 11’--0” (0” (TypTyp.).)

Dead Load = 10.5 Dead Load = 10.5 psfpsf + Self Weight+ Self WeightLive Load = 30 Live Load = 30 psfpsf

Vertical Distance:Vertical Distance:wrtwrt Top Chord Camber (Change in Height) = 2.03”Top Chord Camber (Change in Height) = 2.03”

Vertical Displacement:Vertical Displacement:@ Critical Node = 1.17”@ Critical Node = 1.17”


Structural

NEW Roof Joists

Span = 158’Span = 158’--10”10”Tributary Width = 14’Tributary Width = 14’--3 1/2” (3 1/2” (TypTyp.).)

Dead Load = 10.5 Dead Load = 10.5 psfpsf (SW included in (SW included in VulcraftVulcraft designation)designation)Live Load = 30 psf(14.29’) = 429 Live Load = 30 psf(14.29’) = 429 plfplf

Designation; 112SLH21, NucorDesignation; 112SLH21, Nucor--VulcraftVulcraftLL/ft = 516 LL/ft = 516 plfplfTotal (Safe) Capacity = 770 Total (Safe) Capacity = 770 plfplfApprox. Wt. = 91 Approx. Wt. = 91 plfplf


Structural

NEW Trusses – T2, East-West

Span = 171’Span = 171’--5 1/2”5 1/2”Tributary Width ≈ 97’Tributary Width ≈ 97’--0” 0”

Configuration:Configuration:Top Chord Pitch* = 3/8”/ft (No Bottom Chord Pitch)Top Chord Pitch* = 3/8”/ft (No Bottom Chord Pitch)# of Interior Panels = 11 (Reduced from 13)# of Interior Panels = 11 (Reduced from 13)

Member Sizes;Member Sizes;Top Chord: W30X108Top Chord: W30X108 Web: W18X35Web: W18X35 Bottom Chord: W12X16Bottom Chord: W12X16

Dead Load* = Self WeightDead Load* = Self WeightLive Load = 30 Live Load = 30 psfpsf

Supporting Wide Flange Column Layout: Discussed Later (Arch. BrSupporting Wide Flange Column Layout: Discussed Later (Arch. Breadth)eadth)


Structural

NEW Open Web Steel Joist (w/ Concrete Slab) Floor System

Layout:Layout:Long Direction = 39’Long Direction = 39’--0”0” (N(N--S)S)Short Direction = 33’Short Direction = 33’--6”6” (E(E--W)W)Slab Depth = 2.5”Slab Depth = 2.5”Deck Depth = 9/16” Deck Depth = 9/16” Form DeckForm Deck, USD, USDJoist Span = 33’Joist Span = 33’--6”6”

Designation; 18K5, NCJ/SJI (Designation; 18K5, NCJ/SJI (wrtwrt 34 ft. span)34 ft. span)LL/ft = 110 LL/ft = 110 plfplfApprox. Wt. = 34 Approx. Wt. = 34 plfplf


Structural

Project Overview; Site, Existing Structures, & Conditions.Site, Existing Structures, & Conditions.

Arena Structural Divisions; Levels, Roof, Lateral, Floors, & Foundation.Levels, Roof, Lateral, Floors, & Foundation.


Breadth Studies; Mechanical & ArchitectureMechanical & Architecture

Breadth StudyBreadth StudyBrian S. Lott

Structural

Mechanical

Existing Air Handling System: CAV & VAV UnitsExisting Air Handling System: CAV & VAV UnitsNeighboring (Natatorium) Air Handling System: CAV Neighboring (Natatorium) Air Handling System: CAV –– Direct Expansion UnitsDirect Expansion Units

Design Focus: DehumidificationDesign Focus: Dehumidification

Method: Outside Air AllMethod: Outside Air All--Season Pool Dehumidification UnitSeason Pool Dehumidification Unit

Wringer 2000 Wringer 2000 –– Des ChampsDes Champs

Breadth Study, Cont’d.Breadth Study, Cont’d.Brian S. Lott

Structural

Architecture

Existing Architectural Style: GeorgianExisting Architectural Style: GeorgianPoor Transportation: Narrow Corridors. Limited Entrance, EgresPoor Transportation: Narrow Corridors. Limited Entrance, Egress,s,

& Elevator Access& Elevator Access

Design Focus: Improve Interior TransportationDesign Focus: Improve Interior Transportation

Method: Elimination of Concourse/Event Level ColumnsMethod: Elimination of Concourse/Event Level Columns

Roof Design SummaryRoof Design SummaryBrian S. Lott

Structural

NewRoof Framing

EE--W TrussesW Trusses

SLH LongSLH LongSpan RoofSpan RoofJoistsJoists

SummarySummaryBrian S. Lott

Structural

ConclusionConclusionStructuralStructuralOverallOverall

RecommendationRecommendationTransportation / Column ReductionTransportation / Column ReductionHVACHVAC

ConstructabilityConstructabilityTruss SplicingTruss SplicingJoist Erection / SchedulingJoist Erection / Scheduling

Design Team RecognitionDesign Team RecognitionBrian S. Lott

Structural

Ewing Cole Cherry Ewing Cole Cherry BrottBrott::

Bill McCullough, Sports/Project ArchitectBill McCullough, Sports/Project Architect

Jared Jared LoosLoos, Head Structural Engineer, Head Structural Engineer

Peter Welsh, Structural EngineerPeter Welsh, Structural Engineer

Brian Brian PeaselyPeasely, Mechanical Engineer, Mechanical Engineer

Any Questions?Any Questions?Brian S. Lott

Structural

Thank You!Thank You!Brian S. Lott

Structural

Thanks!

Gracia

s MAHALODanke

Merci

GrazieShieh-shieh

Arigatou

SPASIBO

brian s. lott the pennsylvania state university department ... · presentation outline brian s....

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