AEI Student Design Competition Team 2020-03 April 15, 2020 - - PDF document

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AEI Student Design Competition Team 2020-03 April 15, 2020 - - PDF document

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4/15/2020 AEI Student Design Competition Team 2020-03 April 15, 2020 Integration Structural Electrical Mechanical Challenge #2 : Building Envelope 1 4/15/2020 DR3 War Memorial Hall 3 Project Description Virginia Tech University

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SLIDE 1

4/15/2020 1

Integration Structural Electrical Mechanical Challenge #2 : Building Envelope

AEI Student Design Competition

Team 2020-03

April 15, 2020

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SLIDE 2

4/15/2020 2

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War Memorial Hall

Project Description

Virginia Tech University

  • 1924 Head House
  • 1972 addition
  • Over 200,000 sq. ft
  • $45 million

DR3

4

Presentation Overview

DR13

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SLIDE 3

Slide 3 DR3 Possibly make a better graphic for this slide like the Team Roster and Project Goals

Dalton Rabe, 3/8/2020

Slide 4 DR13 Background is made. Just needs to be inserted

Dalton Rabe, 3/10/2020

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SLIDE 4

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War Memorial Hall

Client's Requests Sandy Hall on Virginia Tech Campus

Natural Ventilation Strategies sDA 40% 30% Façade Energy Improvement Façade Design Integrates 1924 Head House LEED Silver

MB9

6

Project Goals

  • Overall Team Goals
  • Update the user

experience

  • Promote all forms of

wellness

  • Create a Heart of campus
  • Be sure to bring these

up throughout the presentation as often as possible

6

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SLIDE 5

Slide 5 MB9 mess with opacity or outline for callout boxes

Meredith Butler, 3/8/2020

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SLIDE 6

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Codes & Standards

General:

  • 2015 Virginia Construction Code

with Amendments

  • 2015 IECC – Virginia Revisions

Structural:

  • ASCE 7-10 – Minimum Design

Loads

  • AISE Steel Construction Manual

14th Edition

  • AIC 318-14

Electrical:

  • 2014 NFPA 70
  • IES Handbook 10th Edition

Mechanical:

  • 2015 International Swimming

Pool & Spa Code

  • Applicable ASHRAE Standards
  • Indoor Swimming Pools -

ASHRAE

  • Geothermal Heating & Cooling –

ASHRAE

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SLIDE 7

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Site Orientation

45° West of North

  • North façades have eastern and

western sun exposure.

  • Southern facades glare potential

due to low angles of the sun.

Not Provided at Site

District Chilled Water

10

Central Plant Utilities

https://www.facilities.vt.edu/energy-utilities/central-steam-plant.html

Provided at Site

High Pressure Steam 12.47 kV 3-Phase

Drillfield

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Hydrant Flow Test

Fire Protection System Demand Domestic Water System Demand Flow Hydrant Test Curve

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Electrical Site Plan

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SLIDE 9

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Electrical Site Plan

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Electrical Site Plan

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Retaining Wall Site Plan

East Elevation South Elevation

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Retaining Wall Site Plan

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  • 4 other vertical

bore projects on campus

  • Source: Rorrer Drilling

Geotechnical and Geothermal

45’-60’ Silt, clay, & sand 240’-255’ loose limestone

(2015) Department of Conservation and Economic Development

Geotechnical report

  • Soil composition:

disintegrated rock

  • Allowable soil bearing:

6,000 PSF

  • Frost depth: 2.5ft
  • Lateral earth

pressure: 42psf/ft

18

Rainwater Harvesting

  • Cistern
  • Capture 2.6M gallons per year
  • Savings of $23,035
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SLIDE 12

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Construction Considerations

  • Worker safety on site
  • Ease of installation
  • Minimize construction time

RediCor

MB8

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SLIDE 13

Slide 20 MB8 update title to "Building Envelope Challenge"

Meredith Butler, 3/8/2020

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SLIDE 14

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Lighting Concept

Virginia Tech invents the but does not forget the

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Façade

Original 1924 West Elevation Head House

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SLIDE 15

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Façade

West Elevation Head House Link Replacement

24

Façade

West Elevation

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Façade Lighting

Lantern effect

  • Façade preservation
  • Enhances windows
  • Draws people inwards

Uplighting

  • Enhance vertical elements

Coning of the West Elevation 26

Daylighting

Clerestory in the natatorium Glazing in exercise spaces Addition of Glazing Operable windows in office and classrooms

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SLIDE 17

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Daylighting

Skylight Layout Spinning Room Gymnasium Corridors Open Offices Collaboration Space

Addition of Skylights 28

Daylighting

Spatial daylight autonomy

  • sDA of existing building: 17%
  • sDA of the Goliath's Design: 48%

Level 1 Level 2 Level 3 Level 4 Level 5 Level 6

Analysis

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Honeycomb glass

  • Thin inserts to maximize view

to the outdoor

  • Reduces HVAC load

Automated shading

  • Classrooms and offices

Thick Honeycomb Inserts Thin Honeycomb Inserts

Glare Mitigation

Daylighting

30

Natural Ventilation

Strategically placed louvers Foehn Wind Capture

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SLIDE 19

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Natural Ventilation

Operable windows in office and classrooms Operable Windows 32

Natural Ventilation

Active green walls in Link and bouldering room Active Green Walls

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Natural Ventilation

Philodendron hederaceum Sparkling Sarah Cutlass Green Wall Supplemental Lighting

Plants selection

  • Upright growing habits
  • East entrance and bouldering

room requires 25 to 80 footcandles

  • West entrance requires 80 to

400 footcandle

  • Recommended illuminance

for 12 to 15 hours a day

34

Natural Ventilation

NorbBOTANIC White LED Grow Light CCT 5000K Juno Compatible PAR 38 Lamps

Green Wall Supplemental Lighting

Lamp beam angle

  • 30° beam angle is used

toward the top of the wall

  • 15° beam angle is used for

half of the wall

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Façade Intervention

Locations

  • 1972 replacement
  • In addition to normal insulation in

wall assembly

Benefits

  • Shifts peak times
  • Made from renewable sources

Phase Change Insulation 36

Façade Performance

  • WTWR: 0.07<0.26
  • Energy Savings of 33%
  • 22% from Phase

Change Insulation

DR5

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SLIDE 22

Slide 36 DR5 Why are the bullter points on this side?

Dalton Rabe, 3/8/2020

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Final Wall Section

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Roof Coordination

Cooling Tower 12.6 kips L: 8’, W:12’, H:15’

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Roof Coordination

Property line sound level goals:

  • Day – 60 dBA
  • Night – 50 dBA

Sound barrier walls not needed

  • Cost savings
  • Improved equipment performance
  • Reduced structural load

Total: <47 dBA

Mechanical Noise

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Storm Drainage Plan

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Natatorium

Electrical

  • PV modules

Lighting

  • Indirect

Structural

  • DLH joist depth

Acoustics

  • Ceiling baffles
  • Acoustical spray

Mechanical

  • Aluminum duct
  • Condensation

Daylighting

  • Clerestory
  • Frosted glazing

DR6

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SLIDE 26

Slide 42 DR6 Adjust to match the Client Goals slide or vice versa?

Dalton Rabe, 3/8/2020

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Natatorium

Natatorium unit

  • Designed to maintain 55% RH
  • 75-ton total cooling capacity
  • 500 MBH heat recovery/heat

rejection

Condensers

  • Air-cooled

To Heat Recovery HEX

A/C Connections

Natatorium Unit & Condensers 44

Natatorium

Pool pumps

  • Full redundancy
  • Sized for 6-hour circulation time
  • Section 407.2 2015 ISPSC

Steam heat exchanger

  • 120 GPM capacity
  • Sized at partial load because of

heat recovery

Natatorium Plumbing Equipment Room Isometric Natatorium Plumbing

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Natatorium

Considered Conditions 8" Reinforced slab

  • Minimize cracking

and leaking

  • Transfer the weight
  • f water to soil

Cantilevered retaining wall

Pool slab

Pool Foundations

Stem wall Wall footing Floor slab

MB11

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Natatorium

Indirect lighting

  • Minimize glare
  • Ease of maintenance

Class IV Illuminance

  • 300 Lux required
  • 392 Lux achieved

Ametrix Indirect

Natatorium Lighting

DR7

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SLIDE 29

Slide 45 MB11 update detail and revit image

Meredith Butler, 3/8/2020

Slide 46 DR7 Inconsistent Key Plan

Dalton Rabe, 3/8/2020

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Baffles

Natatorium

  • RT goal: 1.5 sec
  • Calculated RT: 1.35 sec

Wall panels Acoustical spray finish

Acoustics

MB12

48

Head House

Floor expansion joint Wall expansion joint

4" Floor Joints 4" Wall Joints Expansion Joints

DR9 MB13 AL1

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SLIDE 31

Slide 47 MB12 match large call out style (nat section & client needs)

Meredith Butler, 3/8/2020

Slide 48 DR9 Why is the blended picture frame only used here?

Dalton Rabe, 3/8/2020

MB13 update the images

Meredith Butler, 3/8/2020

AL1 DONE

Ali Mujtaba Mohamed Al Lawati, 3/8/2020

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Head House

Helical Piles 50

Head House

Historical Preservation - Foundation 2" FILL PORT

  • Optimizing

geothermal header location

  • Maintaining structural

integrity of Head House

1924 HISTORIC HEAD HOUSE 6" HDPE VALVED MAIN (TYP. 2)

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Head House

  • No conditioning prior
  • Underfloor air

Historical Preservation - Lobby 52

Head House

  • Keep chandeliers from 1924
  • LED replacement lamps

Historical Preservation - Lighting

DR10

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SLIDE 34

Slide 52 DR10 inconsistent key plan

Dalton Rabe, 3/8/2020

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Structural – Floor System

  • NW concrete slab on metal

deck

  • Composite beams at 9'-3"

O.C. maximum for floor system

  • Joist at 5'-0" O.C. for roof

system

SECTION AT IN SLAB CONDUIT SECTION AT COMPOSITE STEEL BEAM

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Structural – Example Columns

HSS6x6x1/4 W10x33 56

Structural

  • 91'-2" Span
  • Panel points

interior 9'-3" end span 8'-7"

Truss

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Structural

Benefits

  • Eliminates moment in chord
  • Axial load member analysis

Design

  • Span between floor beam where

columns bear

  • Carries column load to panel

points

Transfer Beams Above Truss 58

Structural – Lateral Locations

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Structural – Typical Lateral Braced Frames

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Footing Design

Typical sizes:

  • 4'x4'
  • 5'x5'
  • 6'x6'

Footing thickness:

  • 12 – 30"

Footing depth:

  • 16" below top of slab
  • n grade

DR11

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SLIDE 39

Slide 60 DR11 Why are bullet points on the right?

Dalton Rabe, 3/8/2020

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Main Electrical Room

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Emergency Electrical Room

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Normal Power One-Line

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Normal Power One-Line

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Normal Power One-Line

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Normal Power One-Line

  • 336 Photovoltaic modules
  • 110,880 Nameplate wattage
  • 15 Year payback

68

Normal Power One-Line

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Generator Power One-Line

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Generator Power One-Line

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Generator Power One-Line

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Emergency Branch Selective Coordination

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Lighting Controls

Layering lighting components

  • Ambient lighting
  • Task lighting
  • Accent lighting

Lighting controls

  • Occupancy sensors
  • Daylight responsive controls
  • Scene controls

Typical Classroom 74

Special Systems Overview

  • Communications
  • Fire Alarm
  • Access Control
  • Security
  • Audiovisual
  • Lightning Protection

Restriction Access Level 0 Restriction Access Level 1 Restriction Access Level 2 Restriction Access Level 3

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SLIDE 47

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Telecommunication Riser Diagram

Stacked telecommunication rooms 76

Telecommunication Riser Diagram

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Fire Alarm Riser Diagram

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Fire Alarm Riser Diagram

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HVAC Load Calculations

63 Tons 436 MBH 75 Tons 316 MBH 340 Tons 3477 MBH 57 Tons 661 MBH 355 SF/Tons 26 BTUH/SF Head House Natatorium Offices/Classrooms Gymnasiums Summaries

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Mechanical System Schematic

  • HVAC System Schematic

82

Geothermal

  • (218) ¾” bores
  • 300’ depth
  • 12 zones
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Cooling Tower

  • Sized for 26% of

cooling demand

  • Remaining heat

rejection is covered by the bore field

84

Energy Recovery Ventilators

  • Wheel type
  • Condenser

water connection for dehumidification at unit

  • Effectiveness of 84-92%
  • Instant to 2.5-year

simple payback

  • Provides +$34,000

energy savings per year

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Mechanical Noise

  • Silencers at intake and

discharge of ERVs

86

Secondary Systems

Water Source Heat Pumps Water Cooled VRF

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Energy Performance of the System

  • 33% “free energy”
  • 64% energy savings per year

88

Domestic Water Riser

Total Demand Size FUS 769 208 GPM 5" CW Entrance CWFU 688 177 GPM 4" CW HWFU 224 95.5 GPM 3" HW WFU 684

  • 6" SAN
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Domestic Hot Water

Semi-instant steam water heater

  • 84 GPM capacity

90

Acoustics

STC 50

Classrooms

STC 60

Mechanical

STC 55

Exercise

STC 40-45

Offices

Sound Transmission Class (STC)

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Acoustics

Gyms and exercise classrooms

  • Floating wood floor
  • IIC 64

Teaching weight room

  • Rubber athletic flooring

and underlayment

  • IIC 75

Open exercise

  • Rubber athletic flooring
  • IIC 58

Impact Insulation Class (IIC) 92

Acoustics Gym

Room Max Recommended RT (sec) Calculated RT (sec) Level 1 Gym 1.5 1.07 Level 2 Gym 1.5 1.10 Classrooms 0.6 0.26

Impact-resistant wall panels Acoustical spray finish Acoustical ceiling tile Wall panels Carpet

Classrooms

Reverberation Time

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Selected Systems

Structural

Gravity System Lateral System Foundation System

Non composite roof and composite floor systems supported by steel framing and steel columns. Lateral loads are supported using steel braced frames and a single moment frame. The design includes shallow foundations, helical piles, and composite foundations.

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  • 2500 A, 480/277V, 3ϕ, 4

w main

  • 200 kW generator

Selected Systems

Electrical

Power Lighting Systems

  • LED Fixtures were

selected for life, efficiency and

  • ccupants' comfort
  • 48% sDA was achieved
  • Lightning Protection

System

  • Speaker/Strobe Fire

Alarm System

96

Geothermal field + cooling tower + steam heat exchanger = Hybrid System

Selected Systems

Mechanical

Primary Systems Secondary Systems Rain Harvesting

  • Water Source Heat

Pumps

  • Water Cooled VRF
  • Cistern
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LEED Certification

55

Points

98

Cost Considerations

Cost Percentage of Total Cost Structural $7.95 million 18% Electrical $6.73 million 15% Mechanical $12.02 million 27% Architectural $18.00 million 40% Total $44.70 million

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Design Summary