HomeMy WebLinkAbout2006-26274 Reso
RESOLUTION NO. 2006-26274
A RESOLUTION OF THE MAYOR AND CITY COMMISSION
OF THE CITY OF MIAMI BEACH, FLORIDA, RATIFYING A
CONTRACT TO NATIONAL CONCRETE PRESERVATION,
INC., IN THE TOTAL AMOUNT OF $1,911,095, TO
PROVIDE FOR THE REMOVAL OF THE EXTERIOR
STUCCO AND REPLACEMENT WITH FIBER REINFORCED
STUCCO; THE REMOVAL OF ALL WINDOWS AND
REPLACEMENT WITH HURRICANE RESISTANT IMPACT
RESISTANT WINDOWS AND FRAMES; AND THE REPAIR
OR REPLACEMENT OF ALL DAMAGED EXTERIOR
DECORATIVE MOLDINGS, CORNICES, AND BALUSTERS
AT THE HISTORIC CITY HALL BUILDING;
APPROPRIATING $1,900,000 FROM THE CAPITAL
RESERVE FUND FOR UNFORESEEN STRUCTURAL
REPAIRS AND PROJECT CONTINGENCY; AND FURTHER
RATIFYING A CONTRACT CHANGE ORDER, IN THE
TOTAL AMOUNT OF $1,758,504, TO THE AFORESTATED
NATIONAL CONCRETE PRESERVATION, INC.
CONTRACT, TO PROVIDE FOR THE COSTS OF
ADDITIONAL STRUCTURAL REPAIRS.
WHEREAS, a structural survey determined that large portions of the
exterior plaster surfaces of the Historic City Hall building had delaminated from
the substrate surface, and that decorative concrete moldings had severe spalling
due to water intrusion that had deteriorated the structural steel reinforcement that
held the moldings in place, and the need to replace the deteriorated windows in
the building; and
WHEREAS, to provide a means of hurricane protection to the building, it
was also determined that the replacement of the windows would be made with
impact resistant windows and frames; and
WHEREAS, the Mayor and City Commission, at its April 20, 2005
Commission meeting, adopted Resolution No. 2005-25857, which authorized the
Property Management Director to serve as the Certified General Contractor of
Record for all of the Fiscal Year (FY) 04/05 Capital Renewal and Replacement
Projects, which included the required renovation/restoration work on the Historic
City Hall Building (the Project); and
WHEREAS, the Property Management Director exercised his authority
and developed the plans and specifications required to perform the different
scopes of work on the Project; and
WHEREAS, following the receipt of a Certificate of Appropriateness by the
Historic Preservation Board at its November 9, 2004 meeting, and following the
obtaining of all necessary regulatory approvals of the plans, the Property
Management Director obtained the master building permit for the entire Project
on June 13, 2005; and
Agenda Item
Date
R7M
7-{;J.-Oro
WHEREAS, a Request for Quotations No VA-QT12-005 was issued, and
five (5) contractors that specialized in concrete fayade restoration with
experience in historic building restoration were contacted to provide quotes for
the Project, which resulted in two (2) responsive quotes; and
WHEREAS, after receiving the quotes, and because of the historic
significance of the building, the Property Management Director assembled a
review team, which included Planning and Historic Preservation personnel, to
review the quotes and to determine if the contractors had the ability, background,
and team necessary to successfully complete the Project; and
WHEREAS, the review team invited the low bid contractor, National
Concrete Preservation, Inc., to present its qualifications, understanding of
occupied building requirements, product review requirements, and the
methodology they would use in performing the work of the Project; and
WHEREAS, the review team concurred that National Concrete
Preservation, Inc., had the experience, qualifications, and ability to perform the
work on the restoration of the Historic City Hall Building; and
WHEREAS, accordingly, the Property Management Director issued a
contract to National Concrete Preservation, Inc., in the total amount of $1 ,911,095,
to provide for the removal of the exterior stucco and replacement with fiber
reinforced stucco; the removal of all windows and replacement with hurricane
resistant impact resistant windows and frames; and the repair or replacement of all
damaged exterior decorative moldings, cornices, and balusters at the Historic City
Hall Building; and
WHEREAS, after the start of the demolition portion of the Project, major
structural defects were found in the structural concrete columns and beams that
support the structure of the building, and in the non-loading bearing envelope
materials used in the exterior wall substrate; and
WHEREAS, the Property Management Director ordered a structural
inspection/evaluation of the structural elements of the building, and the
development of plans and specifications from BEA International, Inc., to address
the structural deficiencies in the building; and
WHEREAS, after the structural repair plans and specifications were
complete, a construction cost estimate of $2,500,000 was provided by BEA
International, Inc., for the additional structural repair work required for the Project;
and
WHEREAS, the structural repair plans and specifications were submitted
to the Building Department, and received an approval for an addendum to the
master building permit on June 9, 2006 for the required additional structural
repair work; and
WHEREAS, following receipt of the addendum to the master building
permit, the Property Management Director negotiated the additional structural
construction costs with National Concrete Preservation, Inc., and arrived at a
final cost of $1 ,758,504; and
WHEREAS, as required by Resolution No.2005-25857, the Administration
hereby requests that the Mayor and City Commission ratify the Property
Management Director's original contract with National Concrete Preservation,
Inc., in the total amount of $1,911,095, to provide for the removal of the exterior
stucco and replacement with fiber reinforced stucco, the removal of all windows
and replacement with hurricane resistant impact resistant windows and frames,
and the repair or replacement of all damaged exterior decorative moldings,
cornices, and balusters at the Historic City Hall building, and further ratify a
contract change order, in the total amount of $1,758,504, to National Concrete
Preservation, Inc., to provide for the additional structural repair needs deemed
necessary to successfully complete the Project; and
WHEREAS, the Property Management Director also requests a Project
contingency of $141,495, for collateral Project needs, for a total additional
structural repair Project cost of $1 ,900,000; and
WHEREAS, accordingly, it is hereby requested that the Mayor and City
Commission appropriate $1,900,000 from the Capital Reserve Fund, to provide
for the additional structural repairs and Project contingencies.
NOW, THEREFORE, BE IT DULY RESOLVED BY THE MAYOR AND
CITY COMMISSION OF THE CITY OF MIAMI BEACH, FLORIDA, that the
Mayor and City Commission hereby ratify a contract with National Concrete
Preservation, Inc., in the total amount of $1 ,911 ,095, to provide for the removal of
the exterior stucco and replacement with fiber reinforced stucco; the removal of
all windows and replacement with hurricane resistant impact resistant windows
and frames; and the repair or replacement of all damaged exterior decorative
moldings, cornices, and balusters at the Historic City Hall building; and further
appropriate $1,900,000 from the Capital Reserve Fund; and further ratify a
change order to the National Concrete Preservation, Inc. contract, in the total
amount of $1,758,504, for the additional structural repair requirements at the
Historic City Hall Building.
PASSED and ADOPTED THIS 12th
day of
2006.
ATTEST:
~' 2..~
)r/ CITY CLERK
D Robert Parcher
MAYOR
Condensed Title:
A Resolution of the Mayor and City Commission of the City of Miami Beach, Florida, ratifying a contract to
National Concrete Preservation, Inc., in the amount of $1,911,095 for stucco fac;ade restoration and
replacement of all windows; and the appropriation of $1,900,000 for unforeseen structural repairs and
project contingency for the Historic City Hall Building, and further ratifying a change order in the total
amount of $1 ,758,504.
Ke Intended Outcome Su orted:
Well Maintained Facilities
Issue:
I Shall the Commission ratify the resolution?
Item Summary/Recommendation:
Structural surveys have revealed severe delamination and spalling of exterior surfacing materials of the
Historic City Hall Building and the need to replace the windows in the building with impact resistant glass
and frames to provide the building a means of protection from hurricanes. The Mayor and City
Commission, at the April 20, 2005 Commission meeting, adopted Resolution No. 2005-25857, which
authorized the Property Management Director to serve as the Certified General Contractor for the
renovation/restoration of the building. After developing approved plans and specifications, five (5)
contractors, that specialized in concrete facade restorations, were contacted to provide quotes on the
project that resulted in two (2) responsive/responsible quotes. An evaluation committee unanimously
agreed that the low bid contractor had the qualifications, background, and capacity to perform the work.
The Property Management Director issued a contract to National Concrete Preservation, Inc., in the total
amount of $1,911,095 for the required work.
After the demolition work of the project had begun, severe structural deficiencies were found under the
stucco fac;ade and in the structural elements of the building. Plans and specifications for the additional
structural repair requirements were ordered and the structural repair cost was negotiated with National
Concrete Preservation, Inc. As required by Resolution No.2005-25857, the Administration requests that the
Mayor and City Commission appropriate a total of $1 ,900,000 from the Capital Reserve Fund and ratify a
change order to the existing contract with National Concrete Preservation, Inc., in the total amount of
$1,758,504, as is deemed necessary to complete the additional structural repair work on the Historic City
Hall Building.
County Courts and Clerks' office and City offices are being temporarily relocated for approximately six
months to perform the structural repairs. Total project completion is estimated to be August 2007.
Adopt the Resolution.
Adviso Board Recommendation:
Historic Preservation Board a
Financial Information:
Source of
Funds:
Amount
$ 1,911,095
ACcount
$2,000,000 Miami-Dade
Count GO Bond Pro ram
$ 500,000 FY 04/05 Capital
Renewal and Replacement
Pro ram # 390.2086.061357
# 390.2086.069357
Capital Reserve Fund
Approved
OBPI
$ 1,900,000
$ 3,811,095
Financial Impact Summary:
Ci Clerk's Office Le islative Trackin
Brad A. Judd; Property Management Director
Si n-Offs:
Department 0'.. .ctor
m
.....
MIAMI BEACH
AGENDA ITEM
DATE
P.1M
1-1.2.. --() "
lD
MIAMI BEACH
City of Miami Beach, 1700 Convention Center Drive, Miami Beach, Florida 33139, www.miamibeachfl.gov
TO:
FROM:
DATE:
SUBJECT:
COMMISSION MEMORANDUM
Mayor David Dermer and Members of the City Commission
Jorge M. Gonzalez, City Manager ~ ~M G:.~
July 12, 2006
A RESOLUTION OF THE MAYOR AND CITY COMMISSION OF THE CITY
OF MIAMI BEACH, FLORIDA, RATIFYING A CONTRACT TO NATIONAL
CONCRETE PRESERVATION, INC., IN THE TOTAL AMOUNT OF
$1,911,095, TO PROVIDE FOR THE REMOVAL OF THE EXTERIOR
STUCCO AND REPLACEMENT WITH FIBER REINFORCED STUCCO, THE
REMOVAL OF ALL WINDOWS AND REPLACEMENT WITH HURRICANE
RESISTANT IMPACT RESISTANT WINDOWS AND FRAMES, AND THE
REPAIR OR REPLACEMENT OF ALL DAMAGED EXTERIOR DECORATIVE
MOLDINGS, CORNICES, AND BALUSTERS AT THE HISTORIC CITY HALL
BUILDING AND FURTHER APPROPRIATING $1,900,000 FROM THE
CAPITAL RESERVE FOR UNFORESEEN STRUCTURAL REPAIRS AND
PROJECT CONTINGENCY AND RATIFYING A CONTRACT CHANGE
ORDER IN THE TOTAL AMOUNT OF $1,758,504, TO NATIONAL
CONCRETE PRESERVATION, INC., TO PROVIDE FOR THE STRUCTURAL
REPAIR.
ADMINISTRATION RECOMMENDATION
Adopt the Resolution.
ANAL YSIS
Exterior renovations were completed on the Historic City Hall Building in 1987, 1993 and
2001. However, large sections of the concrete decorative moldings continued to fall from
the upper floors of the building to the street below. A safety net was installed to prevent
any injury to persons below and a structural evaluation of the condition of the building was
ordered from BEA International. Because of the previous projects completion on the
building that were intended to address the building's substrate issues, the structural
evaluation survey consisted of a "Ping" test to determine if there were any loose materials
that were in danger of falling from the building. In March of 2002, the report from BEA
International was received that found that at least 40% of the exterior plaster surfaces of
the building had delaminated from the substrate surface. Additionally, the decorative
concrete moldings had severe spalling due to water intrusion that had deteriorated the
structural steel reinforcement that held them in place.
In February 2004 funding was approve by the Finance and Citywide Projects Committee
for the development of structural plans and specification for the removal and replacement
of all exterior plaster surfaces of the building and replacement of all damaged decorative
moldings on the building and the replacement of all windows in the building with hurricane
resistant impact resistant glass and frames. A notice to proceed was issued to BEA
International for the development of the construction documents required for the project on
March 9, 2004.
Historic Old City Hall Restoration
Public Works Department
July 12. 2006
When the completed plans were received by the City, the Property Management Director
filed an application for the Historic Preservation Board to review the project on September
16, 2004 for the October 12, 2004 meeting. With minor revision requests completed, the
plans were again reviewed by the Historic Preservation Board at their November 9, 2004
meeting and a Certificate of Appropriateness was issued on November 9, 2004 for
approval of the project. A construction cost estimate of $2,500,000 was provided for the
required exterior work, window replacements, repairs to the building's interior from water
intrusion damage, the replacement of the historic entrance doors on each side of the
building, engineering fees, required work to protect IT and telecommunication equipment,
and project contingencies. Funding to support the project was' obtained in the amount of
$500,000 from the City's GO Bond program and $2,000,000 from the Miami Dade County
GO Bond program. The Property Management Director submitted the plans and
specification to the Building Department on February 28, 2005 for review of all disciplines.
The Mayor and City Commission, at the April 20, 2005 Commission meeting, adopted
Resolution No. 2005-25857, which authorized the Property Management Director to serve
as the Certified General Contractor of Record for all of the FY 04/05 Capital Renewal and
Replacement projects which included the required renovation/restoration work on the
Historic City Hall Building. With the approval, the Property Management Director exercised
his authority and obtained the master building permit for the entire project on June 13,
2005.
After developing specifications specific to the exterior work, a Request for Quotations #
VA-QT12-005 was prepared and a pre-bid meeting was scheduled for August 9, 2005 with
a bid opening date set for September 6, 2005.
The scope of work for this portion of the project included the following:
1) The removal of all existing stucco and the replacement with fiber reinforced stucco,
painted.
2) The removal of concrete copings, ornamental bands, and cornices only where
shown on the permit drawings. Where removed, replace with either EPS shapes or
pre-cast concrete shapes to match the existing shapes as specified in the drawings
and specifications.
3) Removal of the existing balusters and replacement with cast concrete balusters as
per plans and specifications.
4) Removal of windows and frames and replacement with Miami Dade County
product approved impact resistant windows and frames.
Because of the historic significance of the building, five (5) contractors that specialized in
concrete and ornamental decorative molding restoration and historic building restoration
were contacted to provide quotes for the project that resulted in two (2)
responsive/responsible quotes. After receiving the quotes, and again because of the
historic significance of the building, the Property Management Director put together an
evaluation committee to review the quotes and to determine if the contractors had the
ability, background, and team necessary to successfully complete the project. The
evaluation committee consisted of the following:
1) Brad A. Judd, Property Management Director, Contractor of Record, (State
Certified General Contractor)
2) Viviana Alemany, Property Management Capital Projects Coordinator, (Structural
Engineer, Project Manager)
Historic Old City Hall Restoration
Public Works Department
July 12. 2006
3) William Cary, Planning Department Assistant Planning Director (Historic
Preservation)
4) Thomas Mooney, Planning Department Preservation and Design Manager,
(Historic Preservation)
The evaluation committee unanimously agreed that National Concrete Preservation, Inc.
had the experience, qualifications, and ability to perform the work on the restoration of the
Historic City Hall Building. A contract was prepared in the total amount of $1,911,095 to
National Concrete Preservation, Inc. for the work. After a review by the Legal Department
and execution by the Mayor and City Clerk, the contract was issued to National Concrete
Preservation, Inc. for the project on November 4, 2005. After an asbestos survey was
performed as required by the Department of Environmental Resource Management
(DERM), and a structural engineer was retained to provide for the special threshold
inspections required for the project, the Property Management Director issued a Notice to
Proceed on January 6, 2006.
Serious structural deficiencies were revealed during the initial removal of the unforeseen
exterior stucco. These deficiencies include, but are not limited to, concrete loss,
reinforcement corrosion including structural steel beams and columns, brick wall damage,
and window anchoring systems that are missing. In addition, the previous renovations to
the building had applied stucco over the existing stucco rather than removing the old
stucco and applying the new stucco directly to the substrate. In essence, the building
requires major structural repairs in conjunction with the previously funded and awarded
fayade restoration project. The Property Management Director contacted BEA
International, Inc., (Engineer of Record) to determine the extent of the structural damages
and to develop a structural repair plan. The findings of the structural repair needs include
the following:
Skirt BuildinQ
Beam:
. The joints between beams and columns exhibited large, concentrated, vertical
cracks (shear cracks). The joint discontinuity will cause further corrosion
damage and might result in structural failure.
. Reinforcement misplacement is observed.
. Poor quality in initial concrete construction was also observed.
Column:
. The columns are subjected to severe corrosion damages, with multiple
continuous cracks along longitudinal reinforcement (coincident cracks), loss of
concrete surface, extensive loss of longitudinal steel reinforcement (25%-75%),
and extensive loss of hoop steel reinforcement (25%-100%).
. Poor quality in initial concrete construction is also observed.
Window:
. No support system was found for the window frames. Therefore, the window
frame has no anchoring mechanism against wind load.
. The connection between window frame and brick wall revealed poor
construction quality.
Historic Old City Hall Restoration
Public Works Department
July 12. 2006
. Severe damage is common around the perimeter of the existing window frames
and wall joints.
Wall:
. No connection was found between brick wall and reinforced concrete structural
elements. Separation between wall and column was discovered at various
locations.
. Moderate to severe damage to the wall brick surface was discovered.
. Severe damage was found at the wall-column interface.
Tower BuildinQ
Beam and Column:
. Previous drawings indicated structural deficiencies and repair plans.
. Spalling of concrete chunks was observed, posing great hazards to human
safety.
· Investigation was performed at a distance, limited by the accessibility of the
spall locations.
Window:
· Severe damage to the exterior surface due to corrosion of steel wire meshes.
· The investigation was limited to a typical window frame with external stucco
removed.
Wall:
· Spalling of exterior wall chunks was observed, posing great hazards to human
safety.
· Investigation was performed at a distance, limited by the accessibility of the
spall locations.
The cause and effect of the findings include the following:
Vertical Cracks Cause and Effect:
The coincident cracks in the column member, defined as Category M in Concrete Society
Technical Report No. 22, are caused by corrosion of steel reinforcement for the following
reasons:
· Weathering-introduced corrosion was deemed to be the main drive force for the
system deficiency.
· The observed poor quality in initial concrete construction facilitated the corrosion of
internal reinforcement.
Corrosion in longitudinal steel and ties is a major defect in the column and could
eventually lead to failure of a column member. Considering the importance of the columns
among the overall structural system, the consequence can be catastrophic.
Brick Wall DamaQe Cause and Effect:
Brick wall damage is caused mainly by stress concentration. Stress concentration comes
from a variety of sources including poor quality in initial concrete construction such as
mishandling of bricks, the interaction between brick wall and the main structural system,
and impact load during the stucco removal process.
Historic Old City Hall Restoration
Public Works Department
July 12. 2006
The damaged wall units and connections caused corrosion damage and, if not properly
resolved, will cause further corrosion damage at the inner surface of the building. The
damage will also compromise the connection between wall and concrete member posing
potential wall failure under hurricane-imposed wind load.
Other Concerns Raised DurinQ InvestiQation:
Unintentional structural damage revealed during the investigation compounds system
uncertainty. Corrosion prone material, such as wire mesh, used in the last rehabilitation
effort, failed to protect the building and potentially contributed to further deterioration of the
condition of the building.
After reviewing the findings, and multiple meeting with their structural engineers, the
Property Management Director authorized BEA International, Inc., to prepare structural
repair plans and specifications, in accordance with Florida Building Code, to address the
structural conditions of the Historic City Hall building and to provide a construction cost
estimate of the required work. The scope of work included the following:
· To provide specialized cover and concrete materials that will be used to ensure a
durable controlled environment for internal reinforcement.
· Supplemental reinforcement is to be installed as needed to reinstate system
integrity.
· Repair external wrapping with layers of non-corrosive, composite material to
provide a solution with minimum disruption of the system, quick and simple
construction, significant system integrity and capacity improvement, and extensive
service life, all while maintaining original system geometry.
· For the non-structural element, preliminary examination revealed severe damage
of the wall and structural deficiency between window frames and main structural
frame. It is recommended to demolish the damaged brick wall and replace it with
concrete masonry unit (CMU) wall, while replacing the window frames and
installing window support systems.
· A concrete mix with low water permeability shall be selected. Certain reinforcement
shall be selected to replace or reinforce the corroded reinforcement. Proper
external wrapping material and bonding agencies shall be selected to facilitate
simple construction as well as prolonged protection to the core structure. The
selection of construction methods and materials, with consideration of the City's
objective and contractor's capability, shall be optimized to achieve a cost-effective
plan.
· Configurations of the repair material shall be designed to restore system capacities
and maintain robustness in the future service life. The design will establish several
rehabilitation scenarios, with respective configurations, for different categories of
structural deficiencies. The deficiency categories will be defined by key parameters
stated in the ACI concrete repair specifications.
Historic Old City Hall Restoration
Public Works Department
July 12. 2006
. Construction documents shall include guidelines for:
a. Removal of concrete material and surface preparations;
b. Reinforcement treatment and replacement;
c. Concrete restoration;
d. External wrapping material handling and construction;
e. Quality inspection during construction, and future monitoring;
The rehabilitation proposal details are based on the structural components in the follow
sections of the Florida Building Code.
· Article 407.1.2, "Wind design of existing buildings shall be in accordance with
the building codes that were in effect when the building was permitted."
· Article 1003.1, 'The historic preservation goal of this code shall be to minimize
damage to and loss of historic structures ......"
· Article 1 004.1, "Nothing in this code shall be intended to prevent the use of
systems, methods or devices of equivalent or superior quality, strength......"
The Administration recommends that the Mayor and Members of the City Commission
ratify the Property Management Director's contract to National Concrete Preservation,
Inc., in the total amount of $1,911,095, to provide for the removal of the exterior stucco
and replacement with fiber reinforced stucco, the removal of all windows and replacement
with hurricane resistant impact resistant windows and frames, and the repair or
replacement of all damaged exterior decorative moldings, cornices, and balusters. The
Administration also recommends appropriating $1,900,000 from the Capital Reserve
account for project costs and contingencies and ratification of the Property Management
Director's change order to National Concrete Preservation, Inc., in the amount of
$1,759,504, to provide for the structural repair needs at the Historic City Hall Building.
JMG\RCM\FHB\RTH\BAJ
T:\AGENDA\2006VuI1206\RegularlRatify National Concrete Preservation MEMO(update).doc
Miami Beach Old City Hall. Structural Condition oO:.:nvelolJe
Figure 1. Longitudinal Reinforcement Corrosion and Concrete loss
Figure 2. Total loss of Steel Ties
Miami Beach old City Hall. Structural Condition oU:,:'nvelQj2g
Figure 3. Separation Between Brick Wall and Column
Figure 4. Connection Between Window Frame and Column
Miami Beach Old City Hall, Structural Condition of f;'nvelope
Figure 5. Column Longitudinal Cracks
Figure 6. Misplacement of Concrete Beam Reinforcement
Miami Beach Old City Hall, Structural Conditiun oUi!ll.'.dope
Figure 7. Shear Cracks Between Concrete Beam and Column
Figure 8. Damaged Brick Wall
Miami Beach Old Citv Hall. Structural Condition olEnveloTJe
Figure 9. Cracks Between Original Concrete and Repaired Concrete
Figure 10. Total Loss of Wire Mesh for External Stuccos
Miami Beach Old City Hall. Structural Condition of Envelop!!.
Figure 11. Man-Made Anomalies in Concrete Beam
Figure 12. Poor Concrete Quality