Mountain Ridge Project

frizzflowerUrban and Civil

Nov 29, 2013 (3 years and 19 days ago)

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Mountain Ridge Project

-

winter presentation
-

A
EC

AEC

The making of

Ridge University Engineering Building

E
ngineer


Martha Del Campo
, Stanford, CA

A
rchitect


Katrin Wender
,

Weimar, Germany

O
wner


Regina Pau
, Sunnyvale, CA

C
onstruction Manager

Kris
Grotelueschen
, Stanford, CA

APP
rentice


Grace Yamamoto
, Stanford, CA

Site conditions

A
EC

AEC

Functional spaces and relationship

A
EC

A
EC


Dead Loads


Lightweight Concrete
Slab: 55 psf


Steel Deck: 5 psf


Partition Walls: 20 psf


Finishes, Lights: 10 psf


Ducts, Pipes: 5 psf


Roofing System: 25 psf


Live Loads


Offices: 50 psf


Classrooms: 40 psf


Auditorium: 50 psf


Corridors: 100 psf


Snow: 50 psf
(Altitude
~
2500 ft.)

A
E
C

Gravity Loads

Sample Gravity Load Path

A
E
C


Wind


Exposure B


V
33

= 70 mph


Earthquake


Zone 3


Type B Fault Zone

Lateral Loads

A
E
C

Sample Lateral Load Path

A
E
C


Soil


Stiff Sand


Bearing Capacity: 5 ksf


Low settlement


Frost Depth: 4 ft.


Foundation


Wall footings at
perimeter


Column footings under
interior columns


Slab on Grade

Foundation Considerations

A
E
C

Construction

AE
C

$5,500,000
$3,105,703
$2,733,019
$0
$1,000,000
$2,000,000
$3,000,000
$4,000,000
$5,000,000
$6,000,000
Budget in 2001
Budget in 2015 Assuming 4%
Inflation
Final Buget Assuming12% for
Overhead and Profit

Budget is reduced for 4% inflation over the next
14 years.


(2015 Budget = 2001 Budget x0.96
14)


The money
available for
the building
is further
reduced by
overhead
and profit.

Redesign
-

design concept

A
EC

“soft fluid among stones


water among stones“

A
EC

Redesign
-

schematic layout

Redesign
-

schematic layout

A
EC

Redesign
-

schematic layout

A
EC

A
EC

Redesign
-

circulation

A
E
C

Redesign
-

Structure

A
E
C

Redesign
-

Structure

Original Design

Redesign

Perimeter frame with
staggered truss

Retain

Exterior bracing

Retain

King
-
post truss over
Auditorium

Retain

Shear Wall core

Propose braced frame
core

Add basement for
gymnasium


Eccentrically Braced
Frame


Efficient, ductile
system


Eliminates need to
coordinate concrete
and steel workers


Shear Wall


Ductile in combination
with frame system


Traditional, widely
used


Less expensive in
general

A
E
C

Redesign
-

Structure

Redesign
-

Construction

AE
C

Foundations
Complete 7/1/15

Superstructure
Complete
10/14/15

Building
Closed In
1/6/16

Finishes Complete
5/25/16

Redesign
-

Construction

AE
C

Electrical
13.3%
Mechanical
22.4%
Conveying
1.4%
Superstructure
32.6%
Roofing
0.9%
Interior
Construction
15.3%
Exterior Closure
5.8%
Substructure
1.1%
Foundations
4.3%
Special
Construction
2.9%
Total Budget: $2,842,260

Breakdown of Costs:

Redesign
-

Construction

AE
C


Largest crane pick is a 3 kip column



Hydraulic excavator for basement


Concrete will be placed with a pump

Construction Equipment

Redesign
-

Construction

AE
C

Material Laydown

Site Office

Sub Trailers

Site Parking

Additional
Material Area

Site Entrance

Moving
Crane

Direction of
Progression

Alternative 2
-

design concept

A
EC

“water among stone


water on the mountain”

A
EC

2

1

3

Alternative 2


schematic layout

Alternative 2
-

circulation

A
EC

1

2

3

A
EC

Alternative 2


exterior and interior

A
E
C

Alternative 2
-

Structure

A
E
C


Concept


Maximize floor
-
to
-
ceiling height


Thin slab on columns


Eliminate internal
beams


Reduce finishing costs


Allow large windows


APP

E

C

Alternative 2
-

Structure

Drop panel

Slab

Column

A
E
C


Gravity System


Flat Slab System


Minimum allowable depth:


7 in
. (probably greater)


Post
-
tensioned slab


Approximate depth:


8 in
.


Waffle slab over Auditorium


Approximate total depth:


24.5 in
. (4.5 in. top slab)


30” x 30” voids, 6”ribs @
36”


Alternative 2
-

Structure

A
E
C


Lateral Load Systems


Concrete Cast in Place SMRF


Precast Concrete SMRF


Shear Wall for redundancy

Typical Member Sizes:

Ext. Beam: 18x24 in.

Ext. Column: 18x18 in.

Int. Column: 12x12 in.

Alternative 2
-

Structure

A
E
C


Sample Connection Details


Cast in Place SMRF


Precast sMRF

(from pankow.com)

Alternative 2
-

Structure

mild steel bars

post
-
tensioning


Exterior Cladding


Finished concrete (CIP or Precast)


Saves material cost


Concrete must be designed for thermal effects


Precast stone cladding


Adds cost for material and installation


Lightweight materials


Lower life
-
cycle costs (i.e. insulation)

A
E
C

Alternative 2
-

Structure


Roofing System and Skylight


A
E
C

Alternative 2
-

Structure

Wood truss with steel
tension members

Alternative 2
-

Construction

AE
C

Foundations
Complete 6/24/15

Superstructure
Complete 9/23/15

Finishes Complete
6/1/16

Building Closed in
12/16/15

Alternative 2
-

Construction

AE
C

Electrical
13.3%
Mechanical
22.4%
Conveying
1.4%
Superstructure
32.6%
Roofing
0.9%
Interior
Construction
15.3%
Exterior Closure
5.8%
Substructure
1.1%
Foundations
4.3%
Special
Construction
2.9%
Total Budget: $2,732,912

Breakdown of Costs:

Alternative 2
-

Construction

AE
C


Largest crane pick for bucket of concrete


Hydraulic excavator for foundations


Concrete will be placed with a bucket

Construction Equipment

Alternative 2
-

Construction

AE
C

Material Laydown

Site Office

Sub Trailers

Site Parking

Additional
Material Area

Site Entrance

Moving
Crane

Direction of Progress

Alternative 3
-

design concept

A
EC

“water among stones


waterfall and rocks“

A
EC

Alternative 3


schematic layout

A
EC

Alternative 3


schematic layout

A
EC

Alternative 3


schematic layout

Alternative 3
-

circulation

A
EC

A
E
C

Alternative 3
-

Structure











































A
E
C


A/E Interaction

Alternative 3

-

Interaction

E Change Concept

A Proposal

E Proposal

A Feedback

Design

A
E
C


Lateral Load Systems


Steel EBF Core


Concrete Shear Wall Core


Gravity Load Systems


Concrete Frame


Steel Frame


Composite floor slab


Steel
:

Typical
Column:


W14 x 74

Worst
-
Case
Beam:


W18 x 60

Concrete
:

Typical
Column:


18” x 18”

Worst
-
Case
Beam:


18” x 30”

Alternative 3
-

Structure


Details

A
E
C

Alternative 3
-

Structure

Steel:

Concrete:

Alternative 3
-

Construction

AE
C

Foundations
Complete 6/18/15

Superstructure
Complete 9/11/15

Building Closed In
12/10/15

Finishes Complete
5/12/16

Alternative 3
-

Construction

AE
C

Electrical
13.3%
Mechanical
22.4%
Conveying
1.4%
Superstructure
32.6%
Roofing
0.9%
Interior
Construction
15.3%
Exterior Closure
5.8%
Substructure
1.1%
Foundations
4.3%
Special
Construction
2.9%
Total Budget: $3,447,825

Breakdown of Costs:

Alternative 3
-

Construction

AE
C


Largest crane pick for 3.5 kip steel column


Hydraulic excavator for foundations


Concrete will be placed with a pump at the
foundations, and shotcrete for the shear walls

Construction Equipment

Alternative 3
-

Construction

AE
C

Material Laydown

Site Office

Sub Trailers

Site Parking

Additional
Material Area

Site Entrance

Moving
Crane

Direction of
Progress

Construction

AE
C

$3,447,825
$2,732,912
$2,842,260
$2,733,019
$3,105,703
$5,500,000
$0
$1,000,000
$2,000,000
$3,000,000
$4,000,000
$5,000,000
$6,000,000
Budget in 2001
Budget in 2015
Assuming 4%
Inflation
Final Buget
Assuming12% for
Overhead and
Profit
Alternate #1
Alternate #2
Alternate #3
Final Decision Matrix

A

E

C

Benefits

Draw
-

backs


Design like last years


Public space areas


Lack of daylight


Only one entrance


Owner’s choice


2 Entrances


Privacy/security req. good


Concrete system


Straightforward structure


No extended footprint


Efficient structural


Concrete shear core


Fun spiral stairs


Concrete frame & slab


better MEP & floor depth


Not risky for A


Roof truss & MEP intake


Stream threats


Skylight leaking


Extended footprint


Deep floor beams & MEP


Lack of vertical

mechanical path space

$2.8 Million

5/25/16

$2.7 Million

6/01/16

$3.4 Million

5/12/16

Design Process


timeline


Week 1
-
3

Week 4
-
6

Week 7
-
8

Week 9
-
10

A

Understand
program,
discussion

Redesign,
consult
E

Initial Alt3
concepts,
form idea

Completion
A proposal

E

Collecting
general
information

Redesign &
A

Alt2,
consulting
mentors &
C

Alt3 &
talking with
A

C

Collecting
general
information
& mentors

Quantities &
materials

Quantities,
materials
(
A
E
),
schedule &
mentors

Schedule &
Equipment
& mentors

APP

confusion

Decide on
Alt2 Archit.

Consult
A

Design
basics and
consult
A
E
C

Asking and
adjusting

Team Interaction
-

Clerestory Windows

A
EC

AEC

Narrow
Hallways

E
C

APP

E

C

$$$

A

APP

A

C

E

OK

Concept!

Lessons Learned/

Future Improvements

AEC

Lessons:

Improvements:


Clarified discipline goals
and roles in design, how
disciplines respond to
information


Skill recognition


Clear, straightforward,
proactive synchronous and
asynchronous communication


Organizing information for
documentation (i.e., web site)


Working with technology


More thorough use of
communication resources
(i.e, Recall)


More efficient presentation
of ideas


Better online documentation
of information and process

Final choice

-

challenges

A
EC

AEC

architecture:


some interesting
questions still
open

-

facades ?

-

roof garden ?

-

spiral stairs

engineer:

Concrete system

Atrium skylight

MEP space

construction
manager:

Reduce budget
through continued
value engineering

Integration of
mechanical systems
into current
architecture

Use of shotcrete for
shear walls

System for glass
roof area

team interaction:

Value enginering for
budget