Transcript Mountain Ridge Project The making of Ridge University Engineering Building E

Mountain Ridge Project
- final presentation -
The making of
Ridge University Engineering Building
Owner
Architect
Regina Pau,
Engineer
Construction Manager
APPrentice
Martha DelCampo,
Sunnyvale
Katrin Wender,
Weimar
Stanford
Kris Grotelueschen,
Grace Yamamoto,
Stanford
Stanford
AEC
AEC
Site conditions
AEC
Winter Decision Matrix
A
E
C
$2.7 Million
6/01/16
$3.4 Million
5/12/16
•Owner’s choice
•2 Entrances
Benefits •Spiral stairs
•Privacy/security good
•Concrete frame & slab
•Better MEP & floor depth •Concrete system
•Straightforward structure
•Not risky for A
•Extended footprint
Draw- •Roof truss & MEP intake •Deep floor beams & MEP
•Lack of vertical mech. path
backs •Stream threats
•Skylight leaking
space
Functional spaces and relationship
AEC
3d view – design concept
...water is flowing
among stones...
...sunlight collected like rain
in a lake in the
mountains...
AEC
Key elements of design
instr. labs
student
offices, large
meeting
space
normal
student
offices
seminar
rooms
•layout floor #2
auditorium
entrance hall
•south-north section with sunlight study
AEC
Layouts (schematic view)
basement
floor #1
mechanical
computer
storage
restrooms
auditorium
large classr.
small classr.
instr. labs
student
- offices
seminar r.
faculty off.
floor #2
secretaries
floor #3
chair‘s off.
senior admin
AEC
Entrance
the fly brake box builds
a relationship between
the road and the
building
AEC
Sight lines
floor #1
•line:
road – entrance –
auditorium
 leads people
into the building
•sight lines to
stairs
•circulation
AEC
Floor #1
entrance hall with fly
brake box (1.1, 1.0)
auditorium (1.5)
large classrooms (1.4, 1.6)
small classrooms (1.7, 1.8)
restrooms (1.2, 1.3)
AEC
Floor #2
pbl spaces with seminar rooms,
student offices, round table
space (2.7-2.22)
greenhouse space (2.23)
instructional labs (2.6, 2.24)
small classrooms (2.28, 2.30)
faculty offices (2.4, 2.5, 2.26,
2.27)
storage (2.25)
restrooms (2.2, 2.3)
AEC
Floor #3
administration (3.23-3.29)
faculty offices(3.4-3.21)
storage (3.18)
gallery (3.10)
faculty lounge (3.6)
restrooms(3.2, 3.3)
hallway (3.1, 3.22)
AEC
Facades
east / north
west / south
south / east
east / north
AEC
Performance – architecture
storage
te chnical support
compute r machine s
instructional labs
se minar rooms
small classrooms
large classrooms
auditorium
stude nt's office s
faculty lounge
se cre tarie s
se nior admin's office
chair's office
faculty office s
accomplished space
required space
0
1000
2000
3000
4000
AEC
Structural system
AEC
Structural system elements
•Concrete columns
•Concrete shear walls – bearing and lateral
•Post-tensioned slab
•Steel and glass roof truss system
AEC
Structural system – gravity loads
•Dead Loads
–Lightweight Concrete Slab:
Avg. 100 psf
•Live Loads
–Offices: 50 psf
–Classrooms: 40 psf
–Partition Walls: 10 psf
–Auditorium: 50 psf
–Ducts, Lights, etc.: 5 psf
–Corridors: 100 psf
–Cladding: 10 psf
–Snow: 50 psf
–Avg. LL (by area):
62.5 psf
AEC
Structural system – load path
Gravity:
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Structural system – lateral loads
Response Spectrum
•Wind
–V33 = 70 mph
•Earthquake
–Zone 3
–V = 638 kips
Acceleration (g)
–Exposure B
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
1
2
3
4
5
Period (sec)
AEC
Structural system – load path
Lateral:
V
V
AEC
Structural system by floor
B
1
2
3
AEC
Structural details
Column and Column Footing Detail:
#3 ties
@18"
16"
8 #6
16"
23"
Splice
Length
Dowels to match
vertical col. rebar
8 #7
2'
3" cover
8'6"
AEC
Structural details
Column at Slab:
#3 ties
@18"
16"
8 #6
16"
23"
Lap
Splice
Distributed
PT steel
Banded
PT steel
Dowels to match
vertical col. rebar
AEC
Structural details
Wall Detail:
Distributed
PT steel
Banded
PT steel
1" cover
Ah = #8 @
s1 = 12"
#5 @
12"
Av = #4 @
s2 = 18"
30"
splice
length
Dowels to match
vertical wall rebar
3" cover
12"
3.5'
AEC
Slab design
Post-Tensioning cable layout, Floor 1
16
banded
10
banded
11” deep
center span
9” deep
side span
5
distributed,
10 over
column
lines
AEC
Slab design
Post-Tensioning cable layout, Floor 2
16
banded
10
banded
5
distributed,
10 over
column
lines
AEC
Slab design
Post-Tensioning cable layout, Floor 3
16
banded
10
banded
5
distributed,
10 over
column
lines
AEC
Slab design
Post-Tensioning cable layout, Roof
10
banded
10
banded
5
distributed,
10 over
column
lines
AEC
Slab deflections
1
3
2
R
Thanks to KL&A for use of Floor software
AEC
Structural system – foundation
•Soil
–Stiff Sand
–Bearing Capacity: 5 ksf
–Low settlement
–Frost Depth: 4 ft.
•Foundation
–Wall footings under
shear and foundation
walls: 3.5’w x 12”d
–Column footings under
columns: 8.5 ft2 x 2’d
–Slab on Grade
AEC
Structural model
SAP 2000 Model:
AEC
Structural model
Mode 1:
T = 0.0952 sec.
Δmax = 1.65 in.
Mode 2:
T = 0.092 sec.
Δmax = 2.18 in.
AEC
HVAC system
3rd floor
2nd floor
Air Intake
1st floor
Vertical Shafts
Air Exhuast
Basement/Mechanical
AEC
HVAC diagram
AEC
Construction site layout
Site Parking
Sub Trailers
Site Office
88t Hydraulic
Mobile Crane
Site Entrance
Material
Laydown
AEC
Construction sequence
AEC
Construction budget
$6,000,000
$5,000,000
$4,000,000
$3,000,000
$5,500,000
$3,590,600
$2,000,000
$3,159,728
$3,296,932
$1,000,000
$0
Budget in 2001
Budget in 2015
Assuming 3%
Inflation
Final Buget
Estimated Project
Assuming12% for
Cost
Overhead and
Profit
AEC
Construction budget
Special
Construction
3%
Foundations
7%
Electrical
10%
Substructures
2%
Superstructures
21%
Mechanical
23%
Conveying
Systems
2%
Interior
Construction
17%
Foundations
$245K
Substructures
$63K
Superstructures
$690K
Exterior Closure
$467K
$48K
Exterior Closure Roofing
Interior Construction $554K
14%
Conveying Systems
$52K
Mechanical
$749K
Roofing
1%
Electrical
$330K
Special Construction
$99K
Total
$3,297K
AEC
Atrium-Architecture Basis
•sunlight through the atrium is
collected like rain in a lake in
the mountains
•sunlight flows through the
trusses into rooms
•atrium trusses are like trees
on the mountain
AEC
Atrium-Truss System
AEC
Atrium-Truss Selection
Three-Hinged Arch Truss
•Problems
•deflection
•complex connections
AEC
Atrium-Truss Constraints
•Architectural height constraints
•Repeated glass panel size, 4‘x5‘
•Stability of half-truss
2.3’
8’ span
4’ span
height
30’
elev
20’ span
between trusses
40’ base
AEC
Atrium-Truss Details
•Anchor connection to slab •Bolt connection •Purlin detail
•Column connection, no slab
AEC
Atrium-Member Sizes
•Truss members
2L 4x4x1/4
•Bolts
A325N ¾“ diameter
•Purlins
2L 3x5x1/2
•Columns
W 10x100
AEC
Learning Experience-What did we learn here
•Computer
•Necessity
•Communication
•New
hardware
& software
•Be
Clear
& Listen
•Collaboration
•Meltdown
flexibility
•Asynchronous
vs. Synchronous
•1
GoalDown
•Breaking
Discipline
Lines
•Create
clearTeam
sketches
•Act
as one
AEC
Thanks
Thanks to mentors:
•Robert Alvarado
•Helmut Krawinkler
•Greg Luth
•Eric Horn
•Alfred Koelliker
•Chuck Madewell
•Bob Tatum
•James Bartone
•Boyd Paulson
•Scott Dennis
...and Questions?
AEC