Amendment No. 7 to the Agreement with Fentress Architects in the amount of $117,200 av it(—ag53-8
AMENDMENT NO. 7
TO THE AGREEMENT BETWEEN
THE CITY OF MIAMI BEACH, FLORIDA
AND
FENTRESS ARCHITECTS,
DATED MAY 14, 2014,
FOR DESIGN CRITERIA PROFESSIONAL SERVICES FOR THE MIAMI BEACH
CONVENTION CENTER RENOVATION PROJECT,
IN THE AMOUNT OF $117,200
This Amendment No. 7 to the Agreement made and entered this 28' day of May, 2015, by and
between the CITY OF MIAMI BEACH, a municipal corporation existing under the laws of the
State of Florida (hereinafter referred to as City), having its principal offices at 1700 Convention
Center Drive, Miami Beach, Florida 33139, and FENTRESS ARCHITECTS, a Colorado
corporation, having its offices at 421 Broadway, Denver, Colorado (hereinafter referred to as
"Consultant" or"Architect-Engineer").
RECITALS
WHEREAS, pursuant to Request for Qualifications (RFQ) No. 2014-142ME, the Mayor and
City Commission adopted Resolution No. 2014-28538 on April 9, 2014, approving and authorizing
the Mayor and City Clerk to execute an Agreement with Fentress Architects for Design Criteria
Professional Services for the Miami Beach Convention Center Renovation Project (the
Agreement); and
WHEREAS, the Agreement was executed for a lump sum amount of $10,967,200
including reimbursable expenses; and
WHEREAS, on December 8, 2014, Amendment No. 1 was executed for correction to Task
3 — Design Development and Design Criteria Package Services, requiring 30% completion level
for low voltage systems in lieu of 90% completion; and
WHEREAS, on December 8, 2014, Amendment No. 2 was executed for supplemental civil
engineering services, in the amount of$41,079; and
WHEREAS, on December 8, 2014, Amendment No. 3 was executed for additional
services to revise the quantity, sizes and configurations of the main ballroom, junior ballrooms,
and meeting rooms, in the amount of$179,982; and
WHEREAS, on January 21, 2015, Amendment No. 4 was executed for a regional
stormwater pump station location analysis, and for the development of a 3D animation and
custom website for the Project, in the amount of$76,605; and
WHEREAS, on February 11, 2015, the City Commission authorized Resolution No. 2015-
28925, authorizing an additional lump sum amount of $14,469,500, for the purpose of retaining
Fentress to complete all design and construction administration services for the Project; and
WHEREAS, on March 31, 2015, Amendment No. 5 was executed for the completion of
design development documents and preparation of Bid Package 1, in the amount of $2,442,400;
and
WHEREAS, on May_, 2015, Amendment No. 6 was executed for a deductive adjustment
to the Agreement in the total amount of $3,129,259, to delete the remaining Tasks 4, 5 and 6 of
the Scope of Services set forth in Schedule A of the Agreement, as such tasks are no longer
applicable and shall be superseded by a subsequent amendment with regard to the construction
documentation and administration services required for the Project; and
WHEREAS, this Amendment 7 is for certain Additional Services relating to a roof survey,
wind loading and micro-climate services in the total amount of$117,200.
NOW, THEREFORE, the parties hereto, and in consideration of the mutual promises,
covenants, agreements, terms, and conditions herein contained, and other good and valuable
consideration, the respect and adequacy are hereby acknowledged, do agree as follows:
1. ABOVE RECITALS
The above recitals are true and correct and are incorporated as a part of this Amendment
No. 7.
2. MODIFICATIONS
a. The Agreement is amended as defined in Schedule "A-7", attached herein.
3. OTHER PROVISIONS.
All other provisions of the Agreement, as amended, are unchanged and in full force and
effect.
4. RATIFICATION.
The City and Consultant ratify the terms of the Agreement, as amended by this
Amendment No. 7.
[signature page to follow]
I��
IN WITNESS WHEREOF, the parties hereto have caused this Amendment No. 7 to be
executed in their names by their duly authorized officials as of the date first set forth above.
ATTEST: CITY OF MIAMI BEACH _..
AW( 6 z r j= „,mm\Mi 11 1
1
Rafael Granado .. 01 14� Philip Levine //,
'
City Clerk _ °N.\; ...”' '.—/... Cl\ ayor ,,;
.INCORP ORATED' g -
ATTEST : r. •N` LTAN./,
f`,. � '• 'D 7ENTRESS .'CHITECTS
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_,Y k.41kle Aded■IIia . '' L '07.,7\-'.- __-..rill60116.6.111C1.-...... ..- _
Signature Signature
i r, itififov Cvekis U•VC-42-Arq5,5 i PasithAA ct- CCO
Print Name/ jitle Mo nte- Print Name/Title
APPROVED AS TO
FORM & LANGUAGE
& FOR EXECUTION
3,..t_nt„�`' 3- i ,- (5
City Attorney (Of Date
SCHEDULE A-7
1. SCOPE OF SERVICES
A-7.1: Roof Survey
Refer to Exhibit "1" attached herein for detailed scope of work.
Lump sum fee: $24,200
A-7.2: Wind Loading and Microclimate Services
Refer to Exhibit "2" attached herein for detailed scope of work.
Lump Sum fee: $93,000
2. TIME OF COMPLETION
Ten (10) weeks.
3. PAYMENT AND COMPENSATION
The total lump sum fee proposed for this Scope of Work is $117,200. Payment will be
deducted from the Owner's Contingency Allowance.
Original Contingency Amount $ 1,096,720
Amendment No. 1 $ -
Amendment No. 2 $ (41,079)
Amendment No. 3 $ (179,982)
Amendment No. 4 $ (76,605)
Amendment No. 5 $ -
Amendment No. 6 $ 0
Amendment No. 7 $ (117,200)
Contingency Balance $ 681,854
FENTRESS
tentressarchitects.com
April 24,2015
Mr.Jimmy Morales,City Manager
City Manager's Office
City of Miami Beach
1700 Convention Center Drive
4th Floor
Miami Beach,FL 33039
Re: Miami Beach Convention Center Renovation Resolution No.2014-28538
Proposal 09—Roof Survey
Project 20140021.001 A08
Dear Mr.Morales:
The City has requested that a roof survey be provided by the Fentress Architects' Design Team. This work is in
addition to the scope outlined on our base contract. Below is listed our understanding of the scope of this work:
The City asked that the Design Team to provide a roof survey incorporating the following tasks:
1. Survey roof with a roof impedance reader at 10' intervals;
2. Take 33 roof cores determining roof construction and moisture content of samples;
3. Provide report of testing indicating compliance or variation form the Florida Building Code.
Fees for this Task will be a lump sum of Twenty-four Thousand Two Hundred Dollars($24,200),and paid based
on percentage complete of the task. Reimbursable costs for printing, telephone, delivery and travel are included in
this fee. All other terms and conditions of the base contract dated May 14,2014 remain in effect.
All billings for this service will be invoiced under the heading#20140021.001 A08.
If the foregoing correctly states your understanding,please execute in the place and manner provided below and
return to this office whereupon this letter shall become a binding agreement between us.
Sincerely,
Fentress Architects
John Kudrycki,AIA, EED )B +C
Associate Principal
C: Maria Hernandez,Thais Vieira,City of Miami Beach
Jeff Sachs, Strategic Advisory Group
Holly Carson,Neil Suhr,Anne McNeely Fentress Architects
DEN DC LA SJ SF LON SH I 421 Broadway I Denver CO 80203 I 303.722.5000
• h
Mr.Jimmy Morales,City Manager
City Manager's Office
City of Miami Beach
Proposal 09—Roof Survey
April 24,2015
Page 2
Encl: Roof Survey Fee Summary dated April 23,2015
Turnkey Roof Consulting,Inc. Proposal dated March 11,2015
Approved and Authorized:
City of Miami Beach
By: Date: - -
Mr.Jimmy Morales
Project: Roof Survey
Miami Beach Convention Center
4/23/15
Discipline Firm Name Firm Fee
Number
Project Management Fentress Architects 1 $2,240.00
Architecture Fentress Architects 1 $0.00
Architecture Arquitectonica 4 $0.00
Interior Design Fentress Architects 1 $0.00
Fire/Life Safety/Code Consulting Rolf Jensen 13 $0.00
Civil/Utility Engineering Kimley-Horn 6 $0.00 ,
Landscape West 8 7 $0.00
Structural Engineering Martin/Martin 8 $0.00
Vertical Transportation Lerch Bates 12 $0.00
Fire Protection Rolf Jensen 13 $0.00
Plumbing Engineering ME Engineers 14 $0.00
Mechanical Engineering ME Engineers 15 $0.00
Electrical Engineering ME Engineers 16 $0.00
Lighting Design ME Engineers Illume 18 $0.00
Info Technology DL Adams 19 $0.00
Security Systems DL Adams 20 $0.00
AV Systems DL Adams 21 $0.00.
Acoustics DL Adams 22 $0.00
Food Service Caruso 25 $0.00
Traffic Corradino 27 $0.00
Graphics and Signage TKD 28 $0.00
Parking Consultation Walker Parking 29 $0.00.
Cost Estimate RLB 35 $0.00
Hardware Consultation Allegion 37 $0.00
Wind Engineer RWDI $0.00
Roof Specialist Turnkey Roof Consulting, Inc. $21,960.00
Subconsultants Subtotal $21,960.00
Expenses $0.00
Fentress Fees Subtotal $2,240.00
Design Consultant Fees Total $24,200.00
Roof Survey
Fentress Project No. 20140021
04/23/15
. , ,
04affrialcm Roof
% fCcrniiItirig Iric_
METRO DADE COUNTY FLORIDA CERTIFICATE OF
NOA#13-1113.08 SURPASSING EXPECTATIONS AUTHORIZATION#29976
March 11,2015
Mr.Randy Sampaio
TectaAmerica
1333 NW 155'Drive
Miami Gardens,FL 33169
RE: Miami Beach Convention Center
1901 Convention Center Drive
Miami Beach,FL 33139
Dear Randy:
We appreciate the opportunity to provide you with the following quote for testing services at the above referenced
site.The below listed prices are based on 12 roof areas with an approximate area of 617,523 sq ft.
(TESTING INFORMATION)
Quantity Test Description Price per Sample Total
1. 6175 TAS-126 Moisture Survey $ 3.20/sq $19,760.00
2. 11 Additional Roof Area Set Up $ 95.00 $ 1,045.00
3. 33 Extra Cores for Gravimetric Analysis $ 35.00 $ 1,155.00
TOTAL $21,960.00
Please sign where indicated and return via email.
Turnkey Roof Consulting, Inc.
C;247 .. Z. e-4-44.---
I
Y 9
Date:March 11,2015 Date:
John E.Kuchler Sr.,RRO Print:
President/Senior Consultant Title:
PO#:
*Prices subject to change if the scope of this proposal changes*
*Payment is net 30 days;interest to be accrued after 30 days at the rate of 18%annually,or 1.5%monthly*
2280 N.W. 16"'Street Pompano Beach, Florida 33069 Ph. (954)978-9330 Fax(954)978-9339
iohn(c�tumkeyroofconsulting.com
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FENTRESS
fentressarchitects.com
April 2,2015
Mr.Jimmy Morales,City Manager
City Manager's Office
City of Miami Beach
1700 Convention Center Drive
4th Floor
Miami Beach,FL 33039
Re: Miami Beach Convention Center Renovation Resolution No.2014-28538
Proposal 08—Wind Loading and Microclimate Services
Project 20140021.001 A08
Dear Mr.Morales:
This proposal is for the Design Team to provide wind loading and microclimate services for the above referenced
project. This work is in addition to the scope outlined on our base contract and will include the following services:
Wind Climate Analysis:
Long-term meteorological data for the Miami area will be obtained for the analysis of the wind tunnel results.
This information, along with information on the topography surrounding the wind instrument will be used to
establish wind speeds for the area and to develop a mathematical model of the joint probability of wind speed and
direction including the influence of hurricanes. This mathematical model of the wind climate will be used to
analyze the wind tunnel test data.
Proximity and Physical Model Construction of Surroundings:
A scale model of the proposed Convention Center, surrounding buildings and topography will be constructed at
a scale of 1:200 approximately on an 8-foot diameter disk. The proximity model will replicate the existing
conditions adjacent to the project site.This model will be constructed to allow testing both with and without the
proposed Convention Center hotel located on 17th and Convention Center Drive.
Wind Load Study for Structural Design:
This study is to provide wind induced loads for structural design of the roof system, lateral framing system and
canopies. This study provides load cases that can be used by the structural engineer to design each structural
member in detail,in order to take advantage of any structural savings on a wind sensitive structure.
Cladding Wind Load Study:
A summary of the expected peak positive and negative wind pressures acting on the exterior envelope of the
building with the objective of determining design wind loads for cladding design will be provided.In addition to
the exterior envelope, wind loads will also be provided for elements which are exposed to the wind such as the
horizontal trellises,vertical fins and canopies.
Interactive Wind Tunnel Test Virtual Visit:
Design Team will provide the opportunity to attend a "virtual visit"to the test facility to witness testing(e.g.,
smoke visualization testing can be completed to help visualize air flow patterns around the site), review results
with team members or conduct workshops through the use of an online conference/meeting tool and video
cameras which provide real time video feed and interactive capabilities.These interactive capabilities allows the
Design Team the flexibility to remotely participate in a design process that can include everyone regardless of
location in order to include input from all team members.
DEN DC LA SJ Sr LON SH I 421 Broadway I Denver CO 80203 I 303. 722.5000
'e
Mr.Jimmy Morales,City Manager
City Manager's Office
City of Miami Beach
Proposal 08—Wind Loading and Microclimate Services
April 2,2015
Page 2
Fees for this service will be a lump sum of Ninety-Three Thousand Dollars($93,000),and paid based on percentage
complete of the task. Reimbursable costs for printing, telephone, delivery and travel are included in this fee. All
billings for these services will be invoiced under the heading#20140021.001 A08.
If the foregoing correctly states your understanding,please prepare a contract amendment for our execution.We are
very happy to be of service to the City and continue our successful relationship.
Sincerely,
Fentress Architects ipeyd
ohn Kudry cki,AlZ AP BD+C
Associate Principal
encl: Fee Summary
RWDI Proposal dated April 1,2015
c: Maria Hernandez,Thais Vieira,City of Miami Beach
Jeff Sachs,Strategic Advisory Group
Neil Suhr,Anne McNeely Fentress Architects
1�
Project: Wind Tunnel Study
Miami Beach Convention Center
4/1/15
Discipline Firm Name Number
r Fee
u
Project Management Fentress Architects 1 $1,500.00
Architecture Fentress Architects 1 $7,000.00
Architecture Arquitectonica 4 $0.00
Interior Design Fentress Architects 1 $0.00
Fire/Life Safety/Code Consulting Rolf Jensen 13 $0.00
Civil/Utility Engineering Kimley-Horn 6 $0.00
Landscape West 8 7 $0.00
Structural Engineering Martin/Martin 8 $0.00
Vertical Transportation Lerch Bates 12 $0.00
Fire Protection Rolf Jensen 13 $0.00
Plumbing Engineering ME Engineers 14 $0.00
Mechanical Engineering ME Engineers 15 $0.00
Electrical Engineering ME Engineers 16 $0.00
Lighting Design ME Engineers Illume 18 $0.00
Info Technology DL Adams 19 - $0.00
Security Systems DL Adams 20 $0.00
AV Systems DL Adams 21 $0.00
Acoustics _ DL Adams 22 $0.00.
Food Se rvice Caruso 25 $0:00
Traffic Corradino 27 $0.00
Graphics and Signage TKD 28 $0.00
Parking Consultation Walker Parking 29 $0.00
Cost Estimate RLB 35 $0.00
Hardware Consultation Allegion 37 $0.00
Wind Engineer RWDI $84,500.00
Subconsultants Subtotal $84,500.00
Expenses $0.00
Fentress Fees Subtotal $8,500.00
Design Consultant Fees Total $93,000.00
Wind Tunnel Study
Fentress Project No. 20140021
04/01/15
Tel: 519.823.1311
Fax: 519.823.1316
RVV BEST
Rowan Williams Davies&Irwin Inc. �
650 Woodlawn Road West MANAGED
Guelph,Ontario,Canada 5 COMPANIES
-.f-:_: N1 K 1B8 Platinum member
(0N JL1If G EN6rft;sfttS
&SCIEk Mil
Miami Beach Convention Centre
Miami Beach, FL
Proposal
Wind and Microclimate Engineering Services
RWDI # 1501796P2
April 1, 2015
SUBMITTED TO SUBMITTED BY
John Kudrycki AIA LEED AP BD+C Leticia M. Martin, P.E.
Associate Principal Project Manager
Fentress Architects 2000 Ponce De Leon Blvd. Suite 516A
421 Broadway Coral Gables, FL 33134
Denver, CO 80203 Tel: 519.823.1311 x 3038
Direct: 303.282.6099 Phone: 305.421.6312
Mobile: 303.378 4450 leticia.martin(&rwdi.com
Tel: 303.722.5000
fentressarchitects.com Ray Sinclair, Ph.D.
Principal/Project Director
Rowan Williams Davies & Irwin Inc.
650 Woodlawn Road West
Guelph, ON N 1 K 1B8
Tel: 519.823.1311 x 2243
ray.sinclairrwdi.com
This document is intended for the sole use of the party to whom it is addressed and may contain information that is
privileged and/or confidential.If you have received this in error,please notify us immediately.
®RWDI name and logo are registered trademarks in Canada and the United States of America
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Fentress Architects
Y Proposal#1501796P2
April 1,2015
Page 1
CUNSUUING ENGNIERS
&SCIE.tiltsrs
INTRODUCTION
1
Rowan Williams Davies & Irwin Inc. (RWDI) is pleased to submit our proposal to Fentress Architects for
wind and microclimate engineering services for the Miami Beach Convention Center renovation and
expansion project. For detailed information on our experience, and terms and conditions of contract,
invite you to review the appendices supporting this document.
RWDI looks forward to working with Fentress Architects and team on this project. We have completed a
number of similar studies that will make RWDI a natural fit for your team. RWDI has been providing these
services to the design community since 1972 and we believe the following key points make us proficient
to work on this project:
• Substantial technical resources required to achieve the quality and efficiency to satisfy the design
requirements.
• Our local office in Miami for easy support/communication with the team
• Our extensive work experience in the Miami area and with similar projects
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R ���,�j Proposal#1501796P2
1 ,,i April 1,2015
Page 2
LON1Ji`INZ Erkti_%i-EfiS
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Project Description
on
We understand that the project consists of the renovation and expansion of the existing Miami Beach
Convention Center. The new building will feature a unique façade design that includes external sun
shading of horizontal trellis and exterior fins.
This proposal has been prepared based on the information received. Should the design of the
development change significantly at the time of approval, the scope, schedule and fees provided herein
may be subject to change.
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Fentress Architects
•RWDI Proposal#1501796P2
April 1,2015
Page 3
CUNSuU It G E.sG N
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YOUR RWDI TEAM
RWDI enjoys a trusted 43-year reputation for our deep knowledge and sophisticated technology solutions
for wind engineering and environmental projects. From offices in Canada, United States of America,
England, China, and India, our consultants meet the world's most complex design challenges with
experience, knowledge and superior service. Related project profiles of our past experience are provided
in Appendix A.
Our staff is the best in the field, using advanced engineering tools and carefully defined consulting
processes to deliver focused and proven results. Some of your team members would include:
Project Director Ray Sinclair, Ph.D., Principal/Specialist: Ray will serve as the Project
Director, providing overall technical direction and leadership for the project
services. Dr. Sinclair provides specializes in a wide range of projects
involving building & tunnel ventilation, air pollution, fire safety, wind
engineering and sustainable design.
Project Manager Leticia Martin, P.Eng., will be your primary contact and will ensure that the
scope and quality of the services provided are consistent with the proposed
objectives and schedule.
Other Services
Following is a list of other services provided by RWDI that may add value to this project. A detailed
proposal can be provided upon request.
WIND NOISE
Pedestrian Comfort Environnemental Noise Modelling
Wind Energy Environmental Noise Monitoring
Natural Ventilation > Interior Acoustical Design
Cladding Loads Interior Mechanical Noise
Structural Loads
AIR QUALITY VIBRATION
Exhaust Dispersion and Re-Entrainment Interior Mechanical Vibration
Risk Assessment Structural Motion
Regulatory Permitting Environmental Impacts
Air Quality Monitoring
/ u_ SUN SNOW/SAND
�~ .. Solar Loads Ground Level Drifting
Shade Dust Impacts
Glare Roof Snow Loads
Pedestrian Thermal Comfort Falling Ice&Snow
/3[) VENTILATION ENERGY
Natural Ventilation Solar Energy
Stack Effect Building Energy Modelling
Atrium Smoke Management Energy Conservation Measures
LEED/Estidama Services
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Fentress Architects
Proposal#1501796P2
�' April 1,2015
, Page 4
,. 7,
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SCOPE OF WORK
We are pleased to provide you with a scope of work and cost estimate for wind loading and microclimate
services for the proposed Miami Beach Convention project.
Base Services
Wind Climate Analysis—No Charge
Long-term meteorological data for the Miami area will be obtained for the analysis of the wind tunnel
results. This information, along with information on the topography surrounding the wind instrument will
be used to establish wind speeds for the area and to develop a mathematical model of the joint probability
of wind speed and direction including the influence of hurricanes. This mathematical model of the wind
climate will be used to analyse the wind tunnel test data.
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Fentress Architects
Proposal#1501796P2
April 1,2015
Page 5
CONSthJI?4C,ENGM EfiS
&SCIELiiSr,
Proximity and Physical Model Construction — Required for all Wind Tunnel
Studies
A scale model of the proposed Convention Center, surrounding buildings and topography will be
constructed at a scale of 1:200 approximately on an 8 ft diameter disk. Regularly we test our
buildings in 1:300 or 1:400 scale models as a standard method; in this particular case we consider
that the right approach is to use a larger scale model of 1:200 that allows us to reflect the
complexity of the building and to capture the interaction of the wind with all the exterior features.
The proximity model will replicate the existing conditions adjacent to the project site. If
required/authorized, additional surrounding buildings will be created for a second configuration of studies
representing the addition of the future surrounding buildings. Surroundings beyond the limits of the model
will be simulated by appropriate spires and roughness elements on the wind tunnel floor, to provide an
accurate simulation of the wind speed profile and turbulence of the approaching wind. In this way,
consideration can be made for wind profiles on a direction-by-direction basis.
Shop drawings and images of the proximity model(s) will be sent to the project team for review and
comment prior to testing. Surroundings beyond the limits of the model will be simulated by appropriate
spires and roughness elements on the wind tunnel floor, to provide an accurate simulation of the wind
speed profile and turbulence of the approaching wind. In this way, consideration can be made for wind
profiles on a direction-by-direction basis.
Wind Loads Study for Structural Design
Objective: The objective of this study is to provide,wind induced loads for structural design of the roof
system, lateral framing system and canopies. This study provides load cases that can be used by the
structural engineer to design each structural member in detail, in order to take advantage of any structural
savings on a wind sensitive structure.
Wind Tunnel Testing: The data collected from the testing of rigid cladding model and surroundings
described above will be used for this study.
Test Configuration: Two configurations of the study site will be tested for our base studies:
1) Configuration 1 — Representing the building in the presence of all existing and in-
construction surroundings.
2) Non-sheltering Configuration — Chapter 31 of ASCE-7-10 suggests that wind loads
determined by the wind tunnel method should not be less than 80% of the wind loads
determined by the analytical method unless specific testing is performed to show that it is
the aerodynamic coefficient of the building, rather than shielding from nearby structures,
that is responsible for the lower values. To assess this typically requires an assessment of
the potential sheltering effect. Accordingly, an additional test configuration where
significant adjacent structures are removed will be conducted. The results of this test may
be used to determine a more appropriate lower limit of wind loading as dictated by building
shape and site conditions.
Data Analysis: Static equivalent structural loads on the main structural system (roof and lateral framing
system) will be determined for the required return period from the mean and dynamic pressure
coefficients measured in.the wind tunnel and the wind climate for the proposed convention center. This
information will be combined with the structural design team's dynamic modelling information in order to
arrive at recommendations for design wind loads in the form equivalent static pressure distributions (that
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c.
Fentress Architects
-RWD1 Proposal#1501796P2
April 1,2015
Page 6
CONSULING EP GP iE S
&soemisr3
can be readily compared with code provisions). We will also recommend appropriate combinations of
design loads in the two principal directions and in torsion. Wind loading will be provided for vertical uplift,
downforce and unbalanced load cases for the roof structure
Deflections: If requested, another set of structural wind loads will be provided, for the required return
period specified by the structural engineer that can be used to check the deflections for serviceability
criteria.
Report: Interim reports will be presented as they are completed, throughout the analysis phase of this
study. They will be presented to the design team in electronic format. The interim reports will contain
initial data analysis, structural load distributions of the wind loading on the main structural system. The
wind loading information is tailored to the structural engineers design process so that the wind load
information is easily and smoothly integrated into their design process. A final report will be prepared
upon completion of the study. The final report will contain a complete discussion of test procedures,
results and recommendations.
Cladding Wind Load Study
A summary of the expected peak positive and negative wind pressures acting on the exterior envelope of
the building with the objective of determining design wind loads for cladding design will be provided. In
addition to the exterior envelope, wind loads will also be provided for elements which are exposed to the
wind such as the horizontal trellises, vertical fins and canopies.
Study Building Test Model: To conduct the pressure tests, a scale model of the building will be
constructed to include all surface details measuring greater than 1 ft at full scale. To begin this process,
RWDI will produce a three-dimensional solid model from surface geometry(i.e., elevations, sections, and
roof plans) provided by the project team. For its three-dimensional modeling, RWDI currently uses
software by SolidWorks and Rhinoceros.
Taps that measure wind pressure on the surface of the building will be installed. The distribution of taps
on the model will take into consideration possible regions of high wind loads ("Hot Spots"). Taps will also
be located on the fins, trellises and canopies.
Wind Tunnel Testing: The pressure model of the
proposed building will be tested in our boundary layer wind
tunnel where the natural wind and turbulence levels will be
simulated. During the tests, the instantaneous wind
pressures at each pressure tap will be measured for 36
P P P
wind azimuths in 10° increments. The mean, root-mean-
square (RMS) and the peak maximum and minimum .
pressure coefficients, based on the gradient wind pressure,
will then be derived from the wind tunnel data. ` "
Test Configuration: One configuration of the study site
will be tested for our base studies representing the
Convention center in the presence of all existing and in- ,ti` °,, •
construction surroundings. Additional configurations of
study representing the addition of future surroundings are
proposed as optional studies. Example of tap installation on a scale model
Cladding Design Loads: The test data will be combined with the statistical model of the local wind
climate, which includes the strength and directionality of severe winds. The results of this analysis are the
predicted peak exterior pressures for the appropriate return period. The potential for breakage, or an
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CONSULTh 5 ENGINEENS
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opening occurring and the internal compartmentalization of the building will be accounted for with an
internal pressure allowance. To determine the peak cladding loads, the interior pressure will be
estimated and added to the exterior pressure where applicable. The estimated design loads for the
appropriate return period will be presented in the form of block diagrams (in 10 psf increments)
superimposed on the building's elevations and roof plans. The block diagram presentation will allow the
building designers to better estimate the design loads for the wall and roof systems of the proposed
development.
Report& Deliverables: Prior to testing, a map of proposed pressure tap locations can be provided to the
project team for review and comment. Interim information on the initial cladding loads will be sent once
the analysis has been conducted. A final report will be prepared upon completion of the study, which will
contain a complete discussion of the test procedure, results and the recommended design loads for all
the elements on the facade. Contained within the final report, pressure block diagrams will be provided
for building elevations and roof for both peak positive and negative combined pressures.
in terms of pedestrian comfort and safety. The report will also include model photos, a description of
the test procedure, and suggested solution concepts, if required
Interactive Wind Tunnel Test Virtual Visit:
RWDI offers design team members the opportunity to attend a "virtual _ -------
visit" to our test facility to witness testing (e.g., smoke visualization s 7
testing can be completed to help visualize air flow patterns around the t22 r
site) review results with our team members or conduct workshopsr
through the use of an online conference/meeting tool and video
cameras which provide real time video feed and interactive E r �.1 ?
capabilities. If requested, RWDI will share a secured path to access f �, i r '10
the video feed. Our interactive capabilities allow design teams to have N �'
the flexibility to remotely participate in a design process that can include
everyone regardless of location in order to include input from all team ,,; ;
i tbriaar use— : LLY:17.a3�AMC:
members. L,,, L-1 CI
OPTIONAL STUDIES
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Pedestrian Wind Tunnel Study
Model Construction: The 1:200 model used for the Cladding Wind Pressure Study will be used for this
study. Wind speed sensors which are used to measure the mean and gust wind velocities at a full-scale
pedestrian level above ground, will be installed on the model taking into consideration outdoor pedestrian-
use areas around the proposed development. Attention will be paid to wind sensitive areas such as the
plazas, outdoor terraces, street level, the various entranceways, public areas and selected street
locations around the project. These locations will be mutually agreed with the design team prior to testing.
Wind Tunnel Testing: The test model together with the surrounding model will be tested in our
boundary layer wind tunnel where the natural wind speed and turbulence levels will be simulated. During
the tests, wind speed data will be collected for 36 equally spaced wind directions.
Test Configuration: One configuration of surrounding buildings has been proposed representing all
existing, in-construction surroundings in the vicinity of the Convention Center.
Data Analysis: The wind tunnel data will be analyzed together with the area's long term meteorological
statistics to predict how often selected wind speed ranges will occur at each location. The data can then
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CONSWING E"sG':fc1S
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be evaluated to determine the level of pedestrian comfort based on the wind force impact on the
pedestrian.
Results will be reviewed with comfort criteria to determine the types of pedestrian activities suitable for the
predicted wind conditions (e.g., Walking, Sitting or Standing). The test results will be discussed with the
design team via an interim email memo as soon as they become available. In the event that
undesirable conditions are found, we will use our experience and best engineering judgment to
suggest design concepts to minimize uncomfortable winds. If conditions are particularly severe in critical
areas, we may recommend additional testing to develop specific solutions. However, additional testing
in connection with detailed solution development is not included within the scope of this proposal.
Report: A final report will be submitted at the conclusion of the project. This report will contain a
discussion of the wind activity around the proposed development
Wind-Induced Vibration, Noise and Aero-elastic Instability (Aero-acoustic)
Assessment
As wind blows around the proposed building, wind will interact with the architectural features (e.g. vertical
fins, horizontal sunshades, canopy, etc.). and may produce wind-induced vibration, noise and aeroelastic
instability.
The slender façade members, the high degree of exposure of these elements to prevailing winds, the fact
that the elements are arranged in a repeating array and the overall aerodynamic complexity of the system
are risk factors that could create flow-induced vibration and aeroelastic instability. This can sometimes be
exacerbated by a combination of the mechanisms mentioned above, working together to significantly
amplify the vibration and noise. Flow-induced vibration phenomena can often result in unanticipated
dynamic loading conditions on the facade members, supporting framing and the building itself
The objective of the Wind-Induced Vibration and Noise Assessment is to determine whether the geometry
of the proposed vertical aluminum panels and horizontal trellises, when combined with varying wind
conditions, will vibrate in the wind, create aeroelastic instability and have the potential for unusual wind-
induced noise. -
E{
3,9e Cann D¢ilcrAkb cc ilOt tarn
Review of Architectural Features
We will review the design of the vertical fins, horizontal �, �--` 'v Lam.
trellises and canopy to identify the potential for vibration ; i6--- `;=
and noise caused by typical mechanisms. The design ` ' C6:6iDU. sut u'ertco oc�s
:vaap,:-he vte :►
review will reference basic calculations for details that
are identified as having potential for producing wind-
induced vibration and noise, combined with statistics of a s•.:..-�. s:;rtLR:'.vt1; Wilali.;zd
the local wind climate. Based on expected wind speeds a -- . " 4.47 :r�
through the plaza and entrance area based on wind S 79
t;est RI
data for the Miami Beach area, we will provide `='0`" , ""`iR7 fluor°FS VLnOCT/
estimates of the probability of wind-induced vibration F x ,
and noise problems, including the anticipated -Trz- �; fsa
occurrence frequency. General recommendations will ,
be provided where needed to reduce or eliminate the � :►�a I
potential for wind induced noise. `' = ----
Potential Architectural Features Supporting
The expected noise/vibration levels will not be Aeroacoustics Phenomena(Rockwell and
estimated. The noise/vibration mechanism will be Naudascher, 1978)
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C0NSti3lMG.ENG Nt
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assessed in terms of low, medium and high risk.
Should we conclude that there is a high probability of
wind-induced vibration, aeroelastic instability and noise, it
may be desirable to conduct physical tests on portions on _
the exterior elements that may be problematic. The costs t
of these tests would depend on the approach required
and are not included as part of this proposal. �! eel),
.,air ar.-, '`;, ,X3 _
- ! ems,
9 �
Meetings scUitot
Representatives from RWDI will be able to attend it P-
meetings held in Miami Beach as required. Example of a model testing in one of
RWDI's wind Tunnels
For project coordination related scope, schedule, budget
and information flow I (Leticia Martin, project manager)
would be available as required for meetings in the Miami. For detailed technical discussions it is likely
that other RWDI consultants will be called upon to attend meetings in person over in conference calls.
From a cost perspective, the local meetings will be included at no additional cost. However, face-to-face
attendance by RWDI project consultants or senior representatives would be charged extra as noted in the
cost table provided herein.
It should be noted that all of our services allow for interaction with the design team to present results,
answer questions and provide consultation at no extra charge. .
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t_0Ns1Ji';±NG E!tiGINSEd
Sterebrs
BUDGET & SCHEDULE
All professional fees involved in these services (as per the scope of work defined in this proposal) are
included in our firm price offer in US$dollars. A detailed breakdown of our charges is provided below.
Project schedule is initiated upon receipt of written authorization, the required payment and all necessary
information. Project delivery will be confirmed at time of authorization, depending upon updated
availability of resources. Please understand that the overall study schedule will also depend greatly on
timely feedback from the design team and transfer of information between the design team and RWDI.
RWDI Consultation Pricing Schedule
(USD)
Wind Engineering Studies
Base Services Week Week Week Week Week Week Week Week
1 2 3 4 5 6 7 8
Wind Climate Analysis 1 No Charge
Proximity Model Construction of $ 4,500
surroundings
Physical Model Construction of the $ 18,500
study building
Wind Load Study for Structural $23,500
Design3'4'5
Cladding Wind Load Study2'5 $25,000
Interactive Wind Tunnel Test Virtual No Charge
Visit
Wind-Induced Vibration, Noise
and Aero-elastic Instability(Aero- $9,500
acoustic)Assessment
Coordination Meetings in Miami' No Charge As required
Technical Meetings in Miami and $3,500 As required
Presentations6
Total $84,500
Optional Services
Pedestrian Wind Study $ 13,500
Pricing Notes:
1. Wind Climate Analysis and Model Construction are required for any of the wind tunnel studies.
2. One configuration of the study site will be tested for our base studies representing the study building in the
presence of all existing and in-construction surroundings. Additional configurations of the site representing
the addition of future surroundings are proposed as optional studies.
3. RWDI will include one new analysis of wind-induced structural responses to consider new dynamic
properties due to building optimization within the scope of the Base Study Fee, provided the new properties
are forwarded to RWDI shortly following the first analysis of wind tunnel results. Thereafter, additional
analysis to consider new building properties will be charged$2,500 per iteration.
4. An additional, non-sheltering test configuration will be conducted for the wind-induced structural responses
study in which significant adjacent structures are removed as part of the Base Study Fee.
5. In case future building constructions are encountered in the surroundings of the project a new configuration
of the surroundings including the addition of these buildings will need to be included, an additional fee of
$2500 per study per configuration will be added to the total fee.
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CONSULII aG ENG litERS
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6. This fee is per meeting and includes time and all travel expenses. Please provide 7 to 10 business days'
notice prior to meetings to arrange key technical meetings to mutually agreeably times
Delivery Notes:
7. Please note studies authorized at the same time are conducted concurrently; therefore the total schedule
would span approximately 6-8 weeks depending on the receipt of all required information
8. Studies to commence upon receipt of final architectural information, and receipt of initial payment
9. Once preliminary reports have been reviewed, final reports may be prepared within 2 weeks of approval to
proceed.
10. If no comments on the interim reports are received within 4 weeks of submission to the project team, RWDI
will assume that the project team has accepted them and will proceed with generation of the final reports.
CLOSING
Thank you for your interest in working with RWDI Consulting Engineers and Scientists on this project. We
appreciate the opportunity to provide this proposal and look forward to working with you. Please note that
this proposal is effective for 30 days, at which time RWDI reserves the right to revise the proposal.
Should you have any questions, please feel free to contact me.
Respectfully submitted by:
ROWAN WILLIAMS DAVIES &IRWIN INC.
G
Leticia Martin, P.Eng.
Project Manager
LM/kpk
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