B.08.02.05_Section_011010_Satement_of_Work_Zagreb_Heliport.pdf

US Army Corps of Engineers Europe District

APO AE 09049

Co13a

Statement of Work Project Number:

P2: 476450 Zagreb Hospital Heliport

Zagreb, Croatia

Prepared by:

Design Section

Engineering Branch 16 May 2019

01 10 10 Statement of Work Zagreb Hospital Heliport, Zagreb, Croatia

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SECTION 01 10 10

STATEMENT OF WORK

SECTION TABLE OF CONTENTS:

1 GENERAL

2 CIVIL AND GEOTECHNICAL

3 ARCHITECTURAL (Not applicable)

4 STRUCTURAL

5 ELECTRICAL & COMMUNICATIONS

ATTACHMENTS

Att. # 1 Location Map Att. # 2 Demolition Plan and Conceptual Site Plan Att. # 3 As-builts Att. # 4 Dedication Plaque Att. # 5 Structural Calculations Guideline Att. # 6 Fence Detail Att. # 7 Windrose

1.0 GENERAL

1.1 PROJECT DESCRIPTION

The Request for Proposal (RFP) provides parameters for a design-build project for construction of a Helicopter Heliport facility in Zagreb, Croatia (See Att#1- Location Map). The project includes the following general items of work, detailed requirements are contained elsewhere in this Statement of Work:

a. Demolish existing helipad

b. Install helipad and appurtenances with night landing capability.

c. Install access road

1.2 GENERAL REQUIREMENTS

The Contractor must deliver fully functional, turnkey type facilities (without furniture) as described in this document. The work includes - but is not limited to - design, demolition, fabrication, delivery, installation, construction, and site work. The facility and the installed equipment must be permanent construction.

The facility in this project must be complete and usable to meet codes and technical and functional requirements per this Statement of Work (SOW). The proposal price must include all design, calculations, approvals, certificates, fees, labor, material, equipment, direct overhead, indirect overhead, general and administrative expenses (G&A) and general conditions to complete this project as described in the SOW.

These design and product requirements are minimum requisites. Compliance with the provisions of this section by subcontractors is the responsibility of the Contractor.

1.2.1 BASE BID ITEMS AND OPTIONAL BID ITEMS

This Statement of Work addresses the technical requirements necessary to complete all work associated with this project. For information and requirements regarding the allocation of pricing between elements of the work, refer to the Bid Schedule included as a separate document. The Bid Schedule identifies the breakdown between the individual base bid and optional items for all work identified in this Statement of Work, associated drawings, and attachments. All work as described in these documents is included in either the Base Bid or Optional Items: consider all items not specifically identified in the Optional Items as part of the Base Bid Items.

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1.3 FUNCTIONAL AREAS

(not used)

1.4 SUBMITTALS

Government approval is required for submittals with “G” designation; submittals not having a “G” are for Contractor Quality approval. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-05 Design Data

65% Pre-Final Design; G, DO

95% Final Design; G, DO

100% Corrected Final Design; G, DO

1.4.1 DESIGN SUBMITTALS

Provide a complete design package at each milestone, as described in Specification Section 01 33 16 DESIGN AFTER AWARD. The milestones for this project are indicated above in Section 1.4 SUBMITTALS. The specific requirements of each milestone are described in each discipline-specific section of this Specification.

Submit all documents in hard copy and electronic format. Deliver four (4) hard copies with complete sets of drawings, calculations, analyses, and reports as required by this SOW. Print drawings on A1 paper at a minimum. Print calculations, analyses, and reports on A4 paper at a minimum. Provide all hard copy documents in labeled binders. Submit all electronic documents using the .pdf format for text and calculations and both the .pdf and .dwg (AutoCAD, latest version) format for drawings. Send one copy to:

USACE

CENAU-EC-ED, Box 2 Konrad-Adenauer-Ring 39, 65187 Wiesbaden Deutschland

Coordinate the delivery locations for each remaining set of documents with the COR prior to each submittal. See Specification 01 33 00 SUBMITTAL PROCEDURES for additional information.

1.5 MATERIALS AND EQUIPMENT

Materials and products used must be durable, heavy duty, industry standard. The equipment must be the manufacturer’s standard quality and must be compatible with all other equipment and materials within the system or assembly. Equipment and materials must include all connections and accessories necessary to ensure operability and correct installation according to manufacturer’s requirements.

Provide a nameplate secured to each major piece of equipment. Each nameplate must have the manufacturer’s name, address, contact information, type or style, model or serial number, and catalog number. The definition of a “major piece of equipment” is at the discretion of the COR.

1.5.1 LIFE-SPAN

Construction must have an expected life span of 25 years.

1.5.2 MAINTAINABILITY

Provide low maintenance materials and systems appropriate for the project climate and location.

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1.5.3 OPERABILITY

Systems (including but not limited to architectural, electrical, communications, and mechanical systems) must be simple to operate and easy to maintain.

1.5.4 STANDARDIZATION

Provide standardized materials, products, equipment, and systems to minimize the requirements for replacement parts, storage facilities, and service requirements.

1.6 DESIGN CRITERIA

Project design, site facilities, utility systems and material standards must be in accordance with the latest editions of the Host Nation building codes and:

a. ICAO Annex 14, Aerodromes, Volume II, Heliports, Fourth Edition, July 2013

b. ICAO Heliport Manual (Doc 9261)

c. European Aviation Safety Agency, Notice of Proposed Amendment 2017-14USACE

A/E/C Graphics Standard (ERDC/ITL TR-12-1)

d. Air Traffic Act (Official Gazette 69/09, 84/11, 54/13, 127/13 and 92/14)

e. Ordinance on (Narodne novine, No. 24/11)

f. Aircraft Regulations (Official Gazette 128/14)

g. Ordinance on Rescue Firefighting at Airports (Official Gazette No. 51 / 14)

h. USACE A/E/C Graphics Standard (ERDC/ITL TR-12-1)

In the absence of Host Nation building codes, use the International Building Code (IBC) and codes, technical standards, and regulations referenced in this RFP.

While this RFP references various source standards and specifications, all design documents must meet Host Nation codes and requirements. It is the designer's responsibility to demonstrate that the Host Nation standard is equal to the cited standard or specifications being supplanted. Apply the more restrictive standards when conflicts arise between the requirements of this RFP and any referenced or other applicable codes, standards or regulations. If equivalency cannot be met, use the more stringent requirement and quote both codes verbatim in correspondence to the COR. The designer is responsible to determine the required material and execution standards where specific standards are not indicated.

Provide an electronic copy of the local Host Nation standards and building codes in their original language as related to facility design and construction.

1.7 DESIGN CONFERENCES AND MEETINGS

The Contractor and the entire design team are required to participate in a design review conference for each design submittal. The Contractor must bring the personnel that developed the design submittal to any review conference. The Contractor may request additional review conferences, but the Government is under no obligation to conduct or participate in a review conference unless specifically identified in the contract documents.

All design review conferences must be held via teleconference. The Contractor is responsible for taking meeting minutes during each design review conference and submitting to the COR for information and approval.

The Contractor is responsible for evaluating all Government comments prior to each design review conference. The Contractor is responsible for resolving all Government comments from each design phase. The Contractor must provide annotated responses to each design review comment with the subsequent design submittal packages. Construction may not begin until all Government comments from all design phases have been resolved.

END OF SECTION

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2.0 CIVIL AND GEOTECHNICAL

Provide and perform civil engineering design and construction services as required to provide a complete, accessible, functional and usable project. The Contractor is required to extensively coordinate civil design and construction work with the scope of the other disciplines described in this SOW.

2.1 SCOPE SUMMARY

Civil works for this project include, but are not limited to, site survey, site layout, demolition, earthwork, storm system, pavement, fencing, outdoor furnishings, and landscaping. Refer to the bid schedule for which of these are base bid or optional.

2.2 EXISTING CONDITIONS

2.2.1 TOPOGRAPHY

There is a topographic survey for the project site (See Attachment #3-Asbuilts).

The site generally slopes 1% to the southeast. The existing information shown on Att#2-Conceptual Site Plan was compiled from as-builts, google earth, and site photos.

2.2.2 UTILITIES

There is an existing storm system and fire protection system on site (See Attachment #3-Asbuilts). There is no sanitary system at the site. There is an existing electrical system at the site. See SOW Section 5.0-ELECTRICAL for additional electrical existing conditions.

2.2.3 GEOTECHNICAL

There is no geotechnical information provided for the project site.

2.2.4 ENVIRONMENTAL

The windrose diagram in Att#7-Windrose is from a nearby weather station and is provided for reference only. The Designer of Record will need to perform his or her own research on prevailing wind direction for final design.

There are no known environmental protection areas or archeological preservation areas on the project site. There is no prior knowledge of any hazardous or contaminated materials in the site’s soil or pavement.

2.2.5 UNEXPLODED ORDNANCE (UXO)

There is no prior knowledge of UXO in the site’s soil.

2.2.6 EXISTING CONDITIONS INVESTIGATION

Prior to bid, investigate the general and local conditions which can affect the work and/or its cost, including but not limited to:

a. Weather, river stages, tides, or similar physical conditions at the site.

b. Surface and subsurface materials or obstacles to be encountered insofar as this information is reasonably ascertainable from an inspection of the site and due diligence research of as-built drawings, geotechnical reports, environmental reports, and publicly available information on the site.

c. Mobilization and staging constraints.

2.3 DESIGN SUBMITTALS

Provide civil design submittals in accordance with RFP Section 01 33 16, DESIGN AFTER AWARD and SOW Section 1.0 – GENERAL.

65% Design Submittal:

a. Preliminary Design Analysis of civil features.

b. Final Site Survey (include in the Design Analysis).

c. Final Existing Conditions Plan (Completed by DOR and not licensed surveyor).

d. Pre-Final Demolition Plan.

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e. Pre-Final Site Layout Plans - Indicate existing and proposed Civil features.

Include other disciplines’ features (faded back) that affect the Civil Design (buildings, mechanical structures, electrical utilities, etc).

f. Pre-Final Grading Plans, Profiles, Cross Sections, and Details. Include spot grades, contours, and slopes.

g. Pre-Final Pavement Plans, Profiles, Cross Sections, and Details.

h. Pre-Final Utility Plans, Profiles, Cross Sections, and Details (Storm).

i. Pre-Final Fencing and Outdoor Furnishings Plans.

j. Pre-Final Civil Specifications

95% Design Submittal:

a. Update all items from the previous Design Submittal to 95% (Final) Design.

Incorporate all previous design comments.

100% Submittal:

The 100% Submittal provides a complete and final set of contract documents ready for construction. Update all Final submittals from 95% to a corrected Final submittal.

Address all previous government review comments before submitting.

2.3.1 DESIGN ANALYSIS

Provide a Design Analysis for all Civil features that documents significant design choices and substantiates design compliance with contract requirements, applicable codes and standards. Documentation includes narrative, calculations, photographs, sketches, and catalog cut sheets. Reference all applicable regulations, standards, and criteria for the design. Reference sources are subject to Government approval.

Provide design assumptions. For design choices, discuss alternative systems considered, and provide rationale for the selected alternative.

The Design Analysis includes but is not limited to:

a. Discussion of Site Layout constraints and design decisions, including but not limited to, code compliance, helicopter approach angles, prevailing wind direction, vehicle and pedestrian access, setbacks from site features, topography, and future development.

b. Discussion of Pavement constraints and design decisions. Provide the design vehicle(s) specifications. Provide calculations for the pavement section.

c. Discussion of Fencing and Outdoor Furnishings constraints and design decisions.

Provide structural calculations for the fencing and outdoor furnishing foundations if the foundation is designed by the Designer of Record.

Calculations are not necessary if the foundation design is from an industry standard detail.

d. Site Survey as an appendix.

2.3.2 DESIGN DRAWINGS

Provide Civil design drawings of sufficient detail to address the requirements of each design submittal. Civil drawings include plans, profiles, cross sections, and details of Civil features for the project. Design drawings include all necessary information (labeling, dimensioning, legend, details, notes, etc.) to allow for complete understanding and constructability of all proposed features. Provide comprehensible differentiation between features that are proposed, existing, future, or proposed to be demolished by use of appropriate choice of line styles, line weights, and/or colors. In the absence of the Host Nation’s drafting requirements, reference USACE A/E/C Graphics Standard for graphic requirements.

2.3.3 SPECIFICATIONS

See Specification 01 33 16-Design After Award for specification requirements.

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2.4 DESIGN CRITERIA

Provide civil design in accordance with Host Nation codes. In the absence of Host Nation codes, use the latest release of the International Building Code (IBC), SOW Section 1.0-GENERAL, and the following codes and technical standards:

a. Uniform Facility Criteria (UFC) 3-201-01, Civil Engineering

b. UFC 3-220-01, Geotechnical Engineering

2.5 GEOTECHNICAL INVESTIGATION AND REPORT

The Contractor is not required to perform a geotechnical investigation and report for this project. In the absence of geotechnical information on allowable soil bearing pressure, an allowable soil bearing pressure is discussed in STRUCTURAL section 4.0. The Contractor may perform additional geotechnical investigations and/or collect additional existing geotechnical reports if desired to improve the design.

For Construction, perform field and laboratory geotechnical work required for earthwork (i.e. compaction tests, inspection of structure foundation excavations).

In the absence of Host Nation standards, perform the geotechnical work per UFC 3- 220-01, Geotechnical Engineering and IBC.

2.6 TOPOGRAPHIC SURVEY

Provide a topographic survey from a licensed surveyor that includes all existing site information needed to design and construct the project. Include x, y, and z coordinates to the nearest 0.005 meters, dimensions, material, and basic characteristics of all features within the project site limits, as well as all features outside of the project site limits that will affect the design and construction of the project. Research record drawings to obtain utility and pavement information that is not visible from the surface. Provide notes indicating the sources and any limitations or assumptions of the data. Provide a copy of the survey in CAD, in addition to the paper/electronic requirements of the Design Analysis.

Locate and show on the topographic survey the following information:

a. Property boundary, public right of way, and easements. Include the address numbers, street names, and easement records.

b. Survey monuments and benchmarks. Include description.

c. Spot elevations covering the entire survey limits showing high points, low points, grade changes, and at sufficient intervals to represent the general character of the terrain.

d. Contours in intervals of 0.25 meters.

e. Buildings and other miscellaneous structures. Provide finish floor elevation.

f. Pavements. Include pavement type, thicknesses, joint patterns, and pavement markings. Include top of curb and gutter elevations.

g. Surface Drainage Features. Indicate normal water level for water bodies.

h. Utility lines and structures. Include rim elevations and invert elevations for utility structures; identification of lines as underground or aboveground;

pipe sizes and materials.

i. Fences. Include height, material, direction of outrigger, gate locations and types.

j. Signs. Include sign text.

k. Trees. Locate trees over 150 millimeter diameter at 1.3 meters high above grade. Include tree species, diameter at chest height, and dripline diameter.

l. Geotechnical boring locations.

m. Locate environmentally sensitive areas (determined and marked by others).

n. North arrow and scale of drawing.

o. Legend depicting the symbols and abbreviations used on the drawing.

p. Horizontal and vertical coordinate systems, date of survey, licensed surveyor name and license number.

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Site information provided to the Contractor by the Government is not to be considered accurate Site Survey information. Utility field locates and as-built research are the responsibility of the Contractor.

In the absence of the Host Nation’s horizontal and vertical coordinate system, use the Universal Transverse Mercator (UTM) coordinate system, and base vertical coordinates on sea level.

2.7 SITE LAYOUT

Locate the proposed pavement, utilities, and other improvements as indicated on Attachment #2 – Conceptual Site Plan. Amend the site layout as determined by site-specific constraints, code requirements, the owner’s preferences, and future expansion. The helipad must meet both the requirements and recommendations of ICAO.

Helipad location must not limit traffic activity on nearby roads and parking areas.

The Contractor is responsible for all aspects of the project whether they are shown on the Conceptual Site Plan or not.

2.8 DEMOLITION

Remove existing structures, utilities, pavement, vegetation, and any other features to construct the proposed improvements. Provide straight, neat sawcuts at limits of pavement removal. Reference RFP Section 00 74 00-SPECIAL CONDITIONS, and 01 30 00-GENERAL REQUIREMENTS for additional demolition, protection, and permitting requirements.

2.8.1 CONSTRUCTION LIMITS

Do not disturb any areas outside the boundary shown on Att#2-Conceptual Site Plan, with the exception of utility trenches. Contractor is responsible for coordination and permits associated with improvements outside the property boundary. Show demolition work and limits of disturbance in the drawings. Stake-out the limits of disturbance on-site with temporary fencing before beginning construction.

2.8.2 ITEMS TO REMAIN IN PLACE WITHIN CONSTRUCTION LIMITS

Take necessary precautions to avoid damage to existing items to remain in place, to be reused, or to remain the property of the Government. Repair or replace damaged items as approved by the COR. Repairs, reinforcement, or structural replacement require approval by the COR prior to performing said work.

2.8.3 TREE DEMOLITION

Remove trees with driplines within the footprint of the proposed improvements, the safety area, and approach surface on hospital property. Mitigate for tree removal per Host Nation requirements.

2.8.4 UTILITY DEMOLITION

Any existing utilities encountered within the site boundary that are impacted by this project must be protected, or relocated if protection is not feasible. Relocate existing utility mains outside the structural zone of influence of proposed buildings and structures. Utilities impacted by this project that require decommissioning, or that are already out of service, must be removed up to the utility main and capped. Manholes or underground structures to be abandoned must be removed to a minimum depth of 50 centimeters below finish grade. Fill abandoned manhole or structure per Section 2.9-EARTHWORK requirements.

2.8.5 DUST, DEBRIS, AND EROSION CONTROL

Prevent the spread of dust, debris, and erosion from the project site. Install erosion control measures before beginning construction. Sweep pavements as often as necessary to control the spread of debris. When using water for dust control, do not cause hazardous or objectionable conditions such as, but not limited to, ice, flooding, erosion, or pollution. Remove snow, dust, dirt, and debris from work

16-May-19 Page 9 of 20 areas daily. Remove and transport the debris in a manner that prevents spillage on streets or adjacent areas. Apply Host Nation regulations regarding hauling and disposal.

2.8.6 SPECIAL DEMOLITION REQUIREMENTS

Remove the existing concrete helipad, associated visual aids, and electrical infrastructure. Remove or relocate existing improvements on hospital property that are within the safety area and approach surface.

2.9 EARTHWORK

Perform all earth work necessary for the installation of the proposed improvements.

2.9.1 PLANS AND SPECIFICATIONS

Define earthwork requirements in the plans and specifications. Include requirements for satisfactory material, borrow material, structural fill, topsoil, utility trenches, replacement and improvement of on-site soils, soil compaction (for subgrades of structures, paving, and landscaped areas), compaction for utility trenches, maximum lift depths, density testing frequency, maximum temporary and permanent slopes, and engineered support systems.

2.9.2 UNEXPLODED ORDNANCE (UXO) CLEARANCE

UXO Clearance is not required.

2.9.3 CONTAMINATED SOIL

Follow Host Nation guidance for testing requirements. If hazardous materials are discovered, cease excavation, secure the area, and notify the COR for further guidance.

2.9.4 CULTURAL RESOURCES

Cultural resources, such as archaeological remains, may be uncovered during excavation operations. If suspected cultural remains are found, cease excavation, secure the area, and notify the COR for further guidance.

2.9.5 TOPSOIL

Remove and save topsoil (approximately first 20 centimeters of excavation). Separate out subsoil, brush, litter, weeds, roots, stones larger than 25 mm in diameter, and other materials that would interfere with planting and maintenance operations. When restoring the site to finish grade, place topsoil back in excavated areas that do not include proposed paving or structures.

2.9.6 SATISFACTORY MATERIAL

Excavated material (below topsoil), if satisfactory for reuse per the Contractor’s Geotechnical Engineer, may be used on the project site where fill is required.

Unsatisfactory material, and surplus excavated material not required for fill, must be disposed of offsite, and is the responsibility of the Contractor. Borrow material may be required for construction from sources off site. Borrow materials are to be free of hazardous materials and contaminants. Any soil brought in from off-site sources must be certified clean.

2.9.7 BACKFILL COMPACTION

In the absence of Host Nation requirements and geotechnical recommendations, fill and backfill must be placed in layers of 20 centimeters loose thickness and compacted to a minimum 95% of the maximum dry density as determined by Host Nation test method equivalent to ASTM D-1557 (Modified Proctor test). Provide density tests on all lifts at a frequency of 1 test per 40 square meters for helipad foundation, and 1 test per 30 meters of road and utility trench. Round up to nearest whole number (i.e. a 25 square meter foundation requires one test). The location of all tests must be selected by the Contractor’s geotechnical engineer, and copies of all test results must be furnished to the COR. All foundation excavations must be inspected

16-May-19 Page 10 of 20 and approved by the Contractor’s Geotechnical Engineer prior to placing concrete.

Repair earthwork areas as recommended by the Contractor’s Geotechnical Engineer, and approved by the COR.

2.9.8 ENGINEERED SOIL SUPPORT SYSTEMS

Provide engineered soil support systems (i.e. shoring) as required for the construction of the proposed improvements. The Contractor is responsible for all dewatering necessary for earthwork.

2.9.9 SITE GRADING

Provide the helipad surface at an elevation that meets obstruction requirements for approach and takeoff climb. Finished grades must not create stagnating water or ponding anywhere on the project site, nor create ponding on adjacent properties.

Provide storm improvements if ponding is unavoidable. Limit proposed landscape slopes to a maximum 4H:1V for grass areas requiring mowing and 2H:1V for non-grass areas, which will a require non-erodible surface (i.e. rock, shrubs with mulch).

2.10 UTILITIES

This section applies to all project underground utilities located outside the building, including but not limited to, sanitary sewer, water supply, storm drainage, electrical, communications, gas, liquid fuel, and heat. See SOW Section 5.0- ELECTRICAL, for additional utility requirements.

Proposed utility main alignments must be at least 3.0 meters from facility or building foundations, except for building connections. Provide horizontal and vertical separation between new and existing utilities for rehabilitation, maintenance, repair or replacement. Minimum cover over pipes is 0.6 meters; greater than frost penetration; or sufficient to support imposed dead and live loads for the pipe materials used; whichever is more stringent. Place plastic warning tape along the route of the buried pipe after installation at a height of 0.3 meters above the pipe.

Coordinate all required installation, relocation, improvement and protection of utilities held by third party (e.g. public or private utility). This includes coordination of any work to be performed by the utility owner. Choice of materials and products for utility installation must be coordinated with the utility owner (customer or third party) to ensure proper integration and compliance with existing systems and allow for easy maintenance and repair of the utilities in the future.

Provide utility materials per IBC requirements. Any piping or equipment exposed to sunlight must be coated with protective coatings suitable for UV exposure with a minimum expected coating life of 10 years before recoating.

2.10.1 STORM SYSTEM

Replace the storm system to collect runoff from the helicopter pad and access road.

2.11 PAVEMENT

Provide pavements as shown on Att#2-Conceptual Site Plan. The pavements must provide efficient operation and maintenance of the facility, and must not obstruct access to nearby buildings or roads. For PCC, reference SOW Section 4.0 - STRUCTURAL for concrete requirements. For asphalt concrete, provide compaction and pavement density tests, as well as thickness and evenness tests, at the frequency listed in Section

2.9 - EARTHWORK. Perform subgrade tests for all pavements as described in Section

2.9 - EARTHWORK.

2.11.1 HELIPAD

Provide a helipad for hospital operations. The material must be Portland cement concrete (PCC). Design the helipad for a MI8 Helicopter (18.2m length, D=21.3m rotor diameter, and 13,000 Kg takeoff weight). The helicopter will land less than

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300 times per year. Provide a minimum Touchdown and Liftoff Area (TLOF) of 17.7 meters, and a minimum Final Approach and Takeoff Area (FATO) of 21.3 meters. Provide pavement markings on the helipad.

2.11.2 ACCESS ROAD

Provide an access road from the hospital road to the helipad. The minimum width is 5 meters. The material must be asphalt or PCC. The design vehicle for the access road is an ambulance used by the hospital.

2.11.3 PAVEMENT REPLACEMENT FOR UTILITIES

Replace existing pavement sections where the trenching occurs for utility installation. Sawcut a minimum 30 centimeters beyond edge of trench.

2.12 FENCE

Provide a fence around the heliport as shown on Att#2-Conceptual Site Plan and Att#6-Fence Detail (or approved equivalent). Fabric height is a minimum of 1.83 meters high. Provide one vehicle gate, minimum 4 meter wide (double swing or sliding), to access the heliport. Provide one personnel gate, minimum 1 meter wide, to access the heliport. Provide a lock for the gate with 2 keys for each lock. Provide grounding every 30 meters of fence, at every fence corner, and at gate posts (2 per gate). Provide a sign at each gate with “Authorized Personnel Only” in Host Nation language.

2.13 OUTDOOR FURNISHINGS

2.13.1 WIND DIRECTION INDICATORS

See SOW Section 4.0 – STRUCTURAL. The wind direction indicators must meet both the requirements and recommendations of ICAO.

2.13.2 DEDICATION PLAQUE

Provide a dedication plaque at the gate entrance to the helipad. The plague must be freestanding (not mounted on the fence), a minimum of 1 meters high (at bottom of sign), weatherproof, with a concrete footing. The sign dimensions are approximately 60 cm (width) x 45 centimeter (height) and fabricated with powder coated aluminum with permanent printed 1.8 cm high, style font “Arial“ letters as indicated below (will not accept adhesive applied letters). Coordinate the final dedication sign verbiage and graphics with the COR. See Attchment#4-Dedication Plaque for reference.

2.14 LANDSCAPING

Provide grass seed and 20 centimeters of topsoil in all disturbed areas within the construction limits that do not have pavement or a building. Seeds must be locally sourced and native to the area. Provide seed coverage density per manufacturer/supplier’s recommendations. Provide watering, weeding, and any other necessary care to establish growth. Limit planting to times of the year per Host Nation codes and/or manufacturer/supplier’s recommendations. Replace topsoil and seeds, at Contractor’s expense, in areas which do not have new growth coverage of 75% before the warranty period ends.

Before using chemicals during landscaping work, including for use on plants and on site features, the Contractor must submit to the COR, in the form of brochures, certificates and other technical material, information about the chemicals proposed, including about their environmental compatibility. Their use is only permitted with approval of the COR.

3.0 ARCHITECTURAL (Not Used)

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4.0 STRUCTURAL

4.1 GENERAL

The Contractor must provide and perform structural engineering design and construction services as required to provide a complete, accessible, functional and usable project.

The primary structural effort of this project includes:

The design and construction of a new heliport pad for a Mi8 type helicopter with performance class 1.

The design and construction for wind cones and lighting foundation supports.

The contractor must have as part of his design team a licensed structural engineer per Host Nations standards. If work is being performed in a country that does not have licensed structural engineers, then engineering degrees along with extensive structural design experience can be submitted to the COR for qualification verification and approval. The structural engineer’s licensure or qualifications must be submitted to the COR in the design quality control plan prior to the start of design. The Contractor’s structural engineer must be responsible for the design of any part of the building structural systems.

The structural design of the heliport pad aspects must be in accordance with the design criteria listed in this document. The structure of the project must be constructed from locally available materials. The construction must provide a minimum service life of 25 years.

4.2 APPLICABLE DESIGN CRITERIA

All Design, Safety in Construction, Materials, and Performance of Construction Services must be in accordance with current local or national Host Nation codes and standards. In case of conflicting requirements between the various elements, the more stringent criteria must govern.

Any material or construction installed by the Contractor as part of this contract that does not meet the requirements of this RFP or does not meet the applicable codes and standards must be removed and replaced at the Contractor’s expense.

Structural design methods and allowable stresses or load factors for the various structural materials must be in accordance with paragraph 1.7 of this document.

4.3 SUBMITTALS

4.3.1 DESIGN SUBMITTALS

The Contractor must provide the structural submittals after contract award in accordance with Section 01 33 00 SUBMITTAL PROCEDURES. The following documents must be submitted.

4.3.1.1 DRAWINGS

The following structural detail drawings must be provided by the Contractor as required, but must conform to the requirements of this SOW and are subject to the approval of the Contracting Officer Representative (COR). Construction drawings and submittals must include:

65% Design Submittal

- Preliminary heliport pad dimensions and plans which provide information of the main system of the construction giving general information about dimensions of main elements. (min. scale 1:50)

- Preliminary design calculations for heliport pad

- Design and details for the wind cone and lighting pole foundations

95% Design Submittal

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- All corrected items from the 65% Design Submittal requirements

- Complete reinforcement drawings (min. scale 1:50)

- All necessary sections and details of the load bearing structure (min. scale

1:20)

- Detailed specifications that are typically sent to sub-contractors.

100% Submittal

- The 100% Submittal provides a complete and final set of contract documents ready for construction. All previous government review comments must have been addressed. Include all updated drawings, specifications and calculations from the 95% Submittal.

- The design criteria actually used for the structural design must be referenced in the structural notes on the drawings including but not limited to applicable codes, standards and specified material strengths.

Record Drawing Submittal

- The record drawing Submittal provides a complete and final set of record drawings documenting site conditions based on a survey of the final construction performed by the Contractor.

CAD files of all construction drawings and as-built drawings must be submitted in .dwg (latest AutoCAD version) and in .pdf format.

The design documents actually used for the structural design must be referenced in the structural notes on the drawings.

4.3.1.2 STRUCTURAL CALCULATIONS & DESIGN ANALYSIS

The Contractor must submit the structural calculations of all load bearing structural elements and their connections related to this RFP. The design analysis must state and list the basis of design for all project aspects and features. The design analysis and calculations must be in accordance with the enclosed NAU Engineering Guideline 01/2016 Preparation of Structural Calculations, see attachment #5. The current local or national Host Nation codes and standards on which the structural calculation are based must be referenced in the calculations.

If applicable, an electronic copy of the applicable local or national Host Nation codes must be provided. Structural calculations must be sequentially numbered for ease of referencing for all submittal stages.

4.4 PROOFING OF STRUCTURAL DESIGN

The Contractor must have a senior level engineer (10 years structural design experience) other than the designer, perform an independent review of all specifications, drawings, design analysis, calculations, and other required data prior to submission to the Government. In each design submittal, submit a letter of certification from the structural engineer performing the independent review stating that they “have checked the structural design calculations, analysis, and drawings and certify that these comply with the applicable building code requirements and standards.” This is in addition to any host nation requirements for structural engineering oversight.

4.5 STRUCTURAL DESIGN CRITERIA

Structural design methods and allowable stresses or load factors for the various structural materials must be in accordance with the Applicable Design Criteria paragraph 4.2. Requirements in the codes, specifications and industry standards are requirements of this document, unless specified otherwise. The references used for the project design and contract documents must be included in the design analysis required for this project.

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4.5.1 MINIMUM STRUCTURAL DESIGN LOADS

The design loads must be determined in accordance with the codes and standards listed in the Applicable Design Criteria paragraph 4.2. The design load criteria specified herein are minimums; the Contractor is responsible for verifying the actual design loads for this site. If actual design loads are different than that listed herein, the Contractor must notify the COR. Design loads must be included in the structural notes on the drawings. The minimum design load criteria for this project as follows:

4.5.1.1 DEAD LOADS

The structural system must be designed and constructed to safely support the largest or heaviest type of helicopter that is anticipated to use the heliport, for this project it will be a MI-8 helicopter, and account for personnel, freight, snow, refueling equipment, ect. For the purpose of design, it is to be assumed that the helicopter will load on two main wheels. The loads imposed on the structure should be taken as point loads at the wheel centers. All loads and superimposed load must be in accordance with the codes and standards listed in the Applicable Design Criteria paragraph 4.2. Load factors for designs must be based on the applicable material design standard.

4.5.1.2 LOADS

4.5.1.2.1 LIVE LOAD

The live loads must be in accordance with the codes and standards listed in the Applicable Design Criteria paragraph 4.2 for the anticipated usage.

4.5.1.2.2 Dynamic LOADS DUE TO IMPACT ON TOUCHDOWN

The elevated heliport platform must be designed with an emergency rate of descent of 3.6 m/s and an impact load equal to 2.5 times the maximum take-off mass. to support live loads; snow loads, including drifting loads, sliding loads, and rain on snow; and support wind loads including components and cladding in accordance with the Applicable Design Criteria paragraph 4.2.

4.5.1.2.3 SYMPATHETIC RESPONSE LOAD

Design for a sympathetic load which takes the dynamic load to increase the structural response factor dependent upon the natural frequency of the platform slab and supporting beams and columns with an average structural response factor of 1.3.

4.5.1.2.4 PUNCHING SHEAR

Check for the punching shear of an undercarriage wheel or skid using the ultimate design load with a contact area of 64.5 x 103 mm2.

4.5.2 DIMENSIONS OF PLATFORM

This heliport pad is intended to be used by a Mi8, performance class 1 helicopter, the width must not be less than 1.5 times the over-all length/width for the helicopter it intends to serve. A safety area of at least 3 meters or 0.25 times the over-all length/width, whichever is the greater.

4.6 MATERIALS

The use of the recommended materials and/or alternative materials must be in conformance with the publications listed in the Applicable Design Criteria paragraph 4.2. Any exceptions must be noted. Alternative materials may be submitted to the COR for approval if the Contractor determines the materials are more economically viable for this geographic region. Any material or construction that does not meet the requirements of this SOW or does not meet the applicable codes and standards must be removed and replaced at the Contractor’s expense.

4.6.1 PAVING

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Construct the pad of portland cement concrete (PCC), capable of supporting operations by helicopters weighting up to 13,000 kg.

4.6.2 INDICATORS

Wind direction indicators must be provided to indicate the direction of the wind and give an indication of the wind speed. Two wind indicators need to be provided, because the air over the touchdown and lift-off area may be subject to disturbed air flow. The indicator should be a truncated cone. The indicator should be sited to avoid the effects of turbulence and should be of sufficient size to be visible from helicopters flying at a height of 200 m. the wind cone must be illuminated either internally or externally to ensure it is clearly visible during night operations.

4.6.2.2 MOUNTING

The design of the lighting and indicator cone mounting should provide maximum stability and account for all load cases.

4.6.2.3 HELIPORT MARKINGS

Provide heliport markings as required by the Croatian Civil Aviation Agency (CCAA) and the International Civil Aviation Organization (ICAO) for hospital heliports.

At a minimum, provide the following markings:

a. A red “H” (minim 3.0 m tall x 1.8 m wide) in the center of a white cross (minimum 9.0 m tall x 9.0 m wide) in the center of the heliport platform oriented with the axis of preferred approach/departure;

b. The maximum gross weight the heliport is rated for;

c. The maximum size helicopter that the heliport has been designed for; and

d. The name of the facility.

4.7 HELIPORTS SYSTEMS

4.7.1 FOUNDATION SYSTEMS

A 20 cm thick portland cement concrete (PCC) foundations in accordance with the structural calculations. Foundations must be appropriately sized for anticipated loading, both live and dead. Foundations must extend below the frost line for the local area. If foundations are near or below water table, appropriate water proofing measures must be implemented into foundation design, e.g. waterproof membranes, coatings, drains, etc.

4.7.1 SOIL STABILIZATION

Different methods of soil stabilization may be used to meet different site requirements. Helicopter weight, ground support vehicle weight, operational frequency, soil analysis, and climatic conditions should be considered in selecting the method(s) and extent of surface stabilization.

4.7.1.2 ALLOWABLE SOIL BEARING PRESSURE

The allowable soil bearing pressure used for foundation design must be assumed to be a bearing pressures of 1500 psi (72 kN/m2) provided that no unsuitable soils, such as muck or expansive clays. If unsuitable soils are discovered, the structural engineer must be notified to direct corrective measures as required.

4.12 TESTS AND INSPECTIONS

Construction inspections and material testing must be in accordance with local building codes. And submitted to the COR for review and approval. If no local codes are available regarding testing and inspection, follow guidance in UFC 1- 200-01.

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5.0 ELECTRICAL & COMMUNICATIONS

5.1 GENERAL

This section includes requirements for the design, procurement, installation, and testing of a complete navigational lighting and power system. The Contractor must provide a complete design and must perform all labor and provide all materials, equipment, machinery, supervision, and any and all other items necessary to complete the electrical systems.

Electrical design must conform to the design criteria, standards, codes, and locally accepted equivalent host nation practices. Specially selected design products must have been proven reliable and trouble-free in commercial service locations for two years and longer in an environment similar to that of the project site.

5.1.1 APPLICABLE DESIGN DOCUMENTS

Project design must be in accordance with the requirements outlined in Section 1.6

DESIGN CRITERIA.

International Electrical Commission Publications I.E.C.:

IEC 60144 Degrees of protection of enclosures for low voltage switchgear and control gear

IEC 60227 Polyvinyl chloride insulated cables of rated voltages to and including 450/750V

IEC 60423 Outside diameters of conduits for electrical and threads for conduits and fittings

IEC 60454-1-3 Specifications for pressure-sensitive adhesive tapes for electrical purposes

IEC 60439-1 Factory built assemblies of low voltage switchgear and control gear.

IEC 60614 Specification for conduits for electrical installations IEC 60331-21 Insulation integrity for 180 minutes IEC 62305 Lightning Protection System

5.1.2 SD-03 PRODUCT DATA:

The following product data must be submitted to the COR during construction for review and approval prior to use and/or installation:

a. Metal Tubing

b. Conduit Fittings

c. Conductors

d. splice boxes

e. Lighting vault

f. Aviation Light Fixtures

g. Flood light fixtures

h. Light bases

i. Beacons

j. Lighting controls

k. Power distribution cabinet

5.1.4 SD-06-09 FIELD TEST REPORTS

The following reports/testing must be submitted to the COR for review and approval prior to acceptance and payment.

a. 600V Wiring Test

b. Grounding System Test

c. Navigation Lighting Test

5.1.5 DRAWINGS AND DESIGN ANALYSIS

The following electrical detail drawings must be provided by the contractor as required, but must conform to the requirements of this SOWS and are subject to the

16-May-19 Page 18 of 20 approval of the Contracting Officer Representative (COR). Provide the following drawings and analyses of each of the listed submittals:

65% Design Submittal

Legend and Abbreviations Electrical/Communications Site Plan(s) Demolition plan(s), showing existing conditions and demolition work.

Single line diagrams for connection to existing distribution system.

Power Plan(s) Lighting Plan(s) showing fixture layouts, Fixture schedule, controls, and circuiting.

Navigation Aid Lighting Plans Navigation Aid control schemes Cable and conduit schedule Grounding plan(s) 65% Design Analysis (DA) including electrical calculation package.

95% Design Submittal

All requirements for the 65% submittal, updated per comments from the 65% review meeting.

Additional plans and Risers 95% Design Analysis Specifications detailing materials, equipment and installation methods.

100% Design Submittal

All requirements for the 95% submittal, updated per the comments for the 95% review meeting.

5.1.6 Electrical Design Analysis

Contractor must provide a design analysis for each design phase of the project.

Provide the following minimum information:

a. Load calculations and demand factors for lighting and Navigation Aid System.

b. Short circuit calculations and ampere interrupting capacity (AIC) rating of distribution equipment.

c. Electrical coordination study of new building power distribution and protective devices in coordination with existing systems.

d. Voltage drop calculations.

e. Lighting calculations for flood lighting.

f. Catalog cut sheets.

5.2 ELECTRICAL SCOPE

The contractor must provide electrical system design for Zagreb Hospital heliport.

Power connections must be coordinated with local municipality. This package is compromised of the furnishing, delivery, equipment, and associated protection systems. Provide the following items:

a. Demolish existing navigational aid lighting and flood lighting system to include power connections and vault. Main existing power connection to the power cabinet to remain and be re-terminated in new cabinet.

b. Provide new navigational aid lighting.

c. Provide flood lighting of the Heliport.

d. Provide new lighting vault and primary power connections to the system.

e. Provide grounding for the fence.

f. Provide remote activation controls for the flood lights and the navigation system.

5.3 DEMOLITION

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Disconnect, remove, and dispose of all accessible unused electrical wiring/cabling and equipment involved in providing a new heliport. Demolished material must be hauled away and disposed of properly per the host nation standard.

5.4 EXTERIOR ELECTRICAL WORK

5.4.1 PRIMARY POWER

Provide new primary power connections for the navigational lighting and flood lighting from the new power cabinet or lighting vault to each fixture. Provide new lighting vaults and power cabinets. Terminate existing power cables in the new power cabinet for the area.

Cable installation throughout the area must be underground installed if necessary in PVC conduits for easier maintenance/modification. Lighting circuit cables must be plastic coated NYY-J cable (for exterior use). Maximum voltage loss for any branch circuit must be 3% for a new feeder to the electrical distributions must not be more than 2% for the lighting circuits. The minimum cross sections of the cables must be 125% of the required maximum load. The cross-section must not be less than 1.5 mm² for lighting circuits, and 2.5 mm² for electrical outlets. These minimum cable sizes may need to be increase in size to stay within the voltage drop requirements. Calculations and design analysis must be provided for all circuits. Aluminum cable must not be provided.

5.4.3 GROUDNING

Provide grounding for the fence as described in section

5.6 LIGHTING SYSTEM

5.6.1 VISUAL AID NAVIGATION LIGHTING

Provide visual aid navigation lighting for the heliport to include touchdown and liftoff (TLOF), final approach and takeoff (FATO), perimeter/edge, obstruction, identification beacon, windsock lighting, and directional lighting in accordance with ICAO Heliport Standards. Lighting required for operations at night and in inclement weather. Provide obstruction lighting system for all objects and buildings located in-line of the approach zones to include all poles, towers, and the hospital building. Provide illumination for the windsock located near the heliport. Provide a heliport identification beacon to aid the pilot in visually locating the heliport.

5.6.2 FLOODLIGHTING

Provide floodlighting in accordance with ICAO Heliport Standards to provide a minimum illumination on the heliport surface. Provide a system of lights similar to the existing system that was demolished. Floodlights must not exceed a height of 25cm from grade.

5.6.3 CONTROLS

Provide a remote controlled activation system of the floodlights and navigational aid lights for…