Commanding Officer, NAVFACCO Bldg 41 Code 27, NCBC 1000 23rd Ave, Port Hueneme, CA 93043-4301

E -- STRUCTURES AND FACILITIES, R&D, ADVANCED TECHNOLOGIES SOL N47408-98-R-3934 DUE 071398 POC Naomi Melendez, Contract Specialist, 805-982-5095, FAX 805-982-3015 FRP/CONCRETE HYBRID PIER CONSTRUCTION. (1) The Naval Facilities Engineering Service Center is developing cost competitive, long lived, lightweight, and modular structural concepts for Navy pier construction having a zero maintenance requirement for 75 years in a severe marine environment. The modularity will facilitate offsite construction and structural modification to meet changes in mission requirements over its service life including possible relocation. (2) The Navy has a need for modular, prefabricated structural components to provide a new capability to reconfigure its waterfront infrastructure to meet changes in ship characteristics and force realignments. Concepts will be developed and feasibility demonstrated for construction of waterfront pier structure using high performance concrete reinforced with fiber reinforced polymer (FRP) composites. Concepts will maximize maintenance free service life while providing a competitive initial cost with conventional construction. The concept will function with the operational advantages of double deck and floating piers and meet requirements specified in MIL-HDBK-1025/1 including operational support with unlimited access for 140-ton mobile cranes, functional separation of deck operations and utilities, and support for berthing of major combatants. The concept will reflect operational and structural performance trade-offs and will marry discrete state-of-the-art technologies such as high strength lightweight concrete, FRP reinforcement systems, and fault diagnostics. Emphasis will be placed on exploiting the performance characteristics of the constituent materials without mimicking traditional construction technology. (3) Concepts will address the specific functional classification BERTHING PIER and may be classified as OPEN or FLOATING construction in accordance with MILHBK 1025/1 PIERS AND WHARFS. The general purpose of a berthing pier is for mooring ships and providing operational space, utilities and support facilities. Berthing pier activities include:personnel transfer, maintenance and repair, cargo transfer, crew training, and waste handling. Berthing pier features and functions include hotel and ship service utilities, access facilities, fendering, crane services, mooring devices, access to external transportation, lighting, security and other support facilities such as fire alarm. The provision for unlimited portable crane operations in support of maintenance, repair, and cargo transfer as well as of utilities such as water, heat, sewer, electricity, communication cables, and compressed air are the most important functional features of a berthing pier. Utilities and fendering historically conflict with efficient portable crane operations. Cranes are most efficient when they are as close to the ship as possible and near the ship freeboard level. Utilities near the edge and on the pier deck surface or in vaults and tunnels with hatches as well as wide fendering systems separate cranes from the ship. Heavier (higher capacity) cranes are used primarily for their reach and not for their lift capacity. The Navy estimates that utilities and fendering can result in a 40 percent efficiency reduction of crane capacity. The Navy will provide fendering designs for the hybrid pier from ONR project PE0603725N Advanced Berthing Systems. (4) Proposer will submit sufficient description of concept(s) for the Navy to judge merit of proposal. Identify technological inhibitors. Identify advantages of concept. Favorable reviews will be given for those concepts that provide an open deck with more usable space for operations, simplified fendering, mitigation of tidal effects, seismic resistance, reduction of pier down time and site congestion during construction and erection, separation of utility and operational functions, and accessibility of utilities. Favorable reviews will also be given to programs that emphasize the partnership Navy engineers and facilities with private and academic consortia. The Naval Facilities Engineering Command (the system command of NFESC) is recognized as the world's leading authority on waterfront design and construction. The Proposer must consider that the Navy plans to construct a hybrid pier in the 2004 time frame MILCON using the most effective technology. The design will probably employ ACI, Canadian, and Japanese guidelines for FRP/concrete design and construction as well as NFESC and MILHDBK 1025/1 guidelines. Hybrid pier concepts must meet the following structural and geometric requirements for 2004 MILCON: berth two abreast medium size surface combatants (e.g. CG, DDG, FFG) in 40 feet water depth, the total berthing space must be 2400 to 2800 feet in length while the operational deck must be 100 to 120 feet wide, support 140-ton mobile crane operations with 240,000 lbs outrigger loads plus 1200 psf live load, be located 20 ft above water, and provide up to 25,000 ft2 for Phased Maintenance Activities. The concept will include FRP-prestressed concrete deck with utility galleries. Open and floating structures will employ FRP confined concrete piles. Nonstructural elements will employ FRP exclusively. (5) Computer modeling will be used to evaluate the systems operational performance while finite element modeling will be used to analyze the load response performance of subsystems. Laboratory tests to determine material constitutive relationships and to benchmark subsystem performance will be used to refine and validate the computer codes. Constructability and operational performance and load response of an optimized pier system will be analyzed and the concept refined. One-half scale tests will include component and substructure load performance including lateral load response, vertical load response (static, creep), and structural monitoring system performance. (6) This Task will be accomplished in three phases, with the last two phases being awarded based on progress attained in the previous phase. The estimated funding range for the initial Phase I CONCEPT is up to $150,000. Phase I will develop structural concepts, characteristics of the materials to be used, and the methods of construction. Computer modeling will be initiated to validate feasibility, constructability, and performance of proposed concepts and will include material characteristics. Subsystem structural and mechanical evaluation will be initiated utilizing computer modeling and laboratory testing to perform engineering analysis, conceptual designs, feasibility analysis, environmental simulations and proof of principle demonstrations. Other important areas of interest include diagnostic and structural monitoring sensors. PHASE II will include refining pier structural concepts with computer models, determining material constitutive relationships, benchmarking subsystem performance that will be used to refine and validate computer codes, and procuring one half (1/2) scale components. Operational and load response performance of various concepts will be evaluated. Subsystems (piles, pile caps, beams and decks) performance will be evaluated by laboratory testing. Qualitative diagnostics will be integrated with selected substructures. PHASE III will be the construction of a half (1/2)-scale pier section at the NFESC Advanced Waterfront Technology Test Site (AWTTS). The concept will be tested for constructability, load response and service monitoring. Testing will include lateral load response, vertical load response (static creep) and structural monitoring system performance. Testing will determine the feasibility of hybrid construction concepts including the effect of embedded sensors on mechanical behavior, hybrid system behavior, durability of material constituents and structural components, material structural interaction (e.g. anchorage/slip) modeling, and quality control. Evaluation factors are past performance, technical and organizational capability, ability to meet NFESC mission within the estimated time frame, qualifications of key personnel. (7) Technical questions regarding this BAA may be submitted to Dr. George Warren via telephone (805) 982-1236 or via e-mail at gwarren@nfesc.navy.mil. (0153)

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