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STATEMENT OF WORK

Development of advanced design procedures in DAD_ETABS software for practical engineering design and adaptability to performance-based design concepts

BACKGROUND INFORMATION

The National Institute of Standards and Technology (NIST) Engineering Laboratory (EL) has developed a novel procedure for the design of structural members (beams, columns, etc.) subjected to direction-dependent wind loads. The procedure incorporates EL’s Database-Assisted Design (DAD) approach into the widely used ETABS (Analysis and Design of Building Systems) software. ETABS is an engineering software product for multi-story building analysis and design. Incorporating DAD into ETABS resulted in a powerful software package enabling DAD’s unique safety and economy features to be part of general structural design practice, while also incorporating the desirable ETABS features required by the structural engineering community.

The DAD_ETABS software needs to be adapted from the points of view of confidence in its output, ease of use, and applicability to a wide variety of types of high-rise structural systems subjected to wind loads, under the concept of performance-based design (PBD). Extensive practical structural engineering office experience is a prerequisite for achieving the objectives of the work described herein.

PURPOSE

The purpose of this acquisition is to procure contractor support services with a view to adapting structural design procedures that use the DAD_ETABS software so that they are consistent with the specific needs of structural design practitioners, thus assuring the widespread, nationwide application by structural design offices of concepts and methods developed to date by NIST and academic research. The requisite services will pertain to steel as well as to reinforced concrete (RC) high-rise buildings with regular and irregular shapes.

SCOPE OF WORK – General Task Requirements

The Contractor shall provide all support for project oversight, administration, and technical execution of this purchase order. The Contractor is responsible for maintaining accurate records of project activities.

These tasks include development and implementation of design procedures for high-rise steel buildings (Task 1, CLIN 0001) and RC shear wall buildings (Task 2, CLIN 0001), with a regular shape in DAD_ETAB software based on recommendations reported from the service contract (No.

1333ND21PNB730467), upgrade the DAD_ETABS design procedure for designing a building with irregular shape (Task 3, CLIN 0001), and development of practical PBD procedures for DAD_ETABS (Task 4, CLIN 0001). In addition to these base tasks, this Statement of Work includes several optional tasks that may be exercised at the sole discretion of the Government, either at the time of award or any time prior to the expiration date of the base period of performance. These optional tasks include implementation of a DAD_ETABS design procedure for non-linear PBD and design examples of buildings based on structural performance scenarios. Information on the detail of buildings for design will be furnished to the Contractor by the NIST Contracting Officer’s Representative (COR) after award of the contract.

SPECIFIC TASKS

The contractor shall perform the specific tasks as detailed throughout this section.

1. Base Requirements and Tasks (CLIN 0001)

The Contractor shall complete the following tasks:

Task 1: Develop and implement in DAD_ETABS software the design procedure of a steel building with a regular shape (i.e., prismatic building with a rectangular floor plan). The Contractor shall provide guidance and advice on implementation of the software performed by NIST. The Contractor shall perform design of a high-rise building using the developed DAD_ETABS software.

Task 1.1. Plan a detailed practical design procedure for a steel building

Based on the DAD design procedures developed by NIST, the Contractor shall identify difficulties in practical use of the procedures for design of a steel building by structural design practitioners and propose a plan for upgrading the procedure to satisfy specific needs for use in practical design.

Task 1.2 Provide technical advice and guidance on implementation of design procedure modules

The Contractor shall provide technical advice and guidance on the implementation of the upgraded design procedure (Task 1.1) via regular (i.e. bi-weekly) virtual meetings. The duration of each virtual meeting is expected to be no more than two (2) hours in length. The Contractor shall submit meeting notes/minutes to the COR/TPOC, via e-mail, at the conclusion of each meeting.

Task 1.3 Perform an example design of a steel building with a “regular” shape using the upgraded DAD_ETABS software and report on the updated design procedure and the design example

The Contractor shall employ the upgraded DAD_ETABS software for design of steel buildings to perform design of a steel building with a “regular” shape. The regular shaped building shall be a prismatic one with a rectangular floor plan and its geometric center in each floor shall be consistent with its mass center. The building shall be designed for gravity and wind loads. The gravity loads and, for each of 36 wind directions, the wind pressures at multiple ports on the building facades and the samples of mean wind speeds at the top of the building, will be provided by the NIST TPOC to the Contractor. The geometry of the buildings will also be specified by the TPOC. Performance limit states for strength, inter-story drift and floor accelerations will be specified as well. Elastic material behavior shall be used throughout at structural analysis/design. The Contractor shall send to the NIST COR/TPOC a report on the updated DAD_ETABS procedure for design of steel buildings and the design example of a steel building.

Task 2: Develop and implement in DAD_ETABS software the design procedure of a RC shear wall building with a “regular” shape. The Contractor shall provide guidance and advice on implementation of the software performed by NIST. The Contractor shall perform design of a high-rise building using the developed DAD_ETABS software.

Task 2.1 Plan a detailed practical design procedure for a RC shear wall building

Based on the DAD design procedures developed by NIST, the Contractor shall identify difficulties in practical use of the procedures for design of a RC shear wall building by structural design practitioners and propose a plan for upgrading the procedure to satisfy specific needs for use in practical design.

Task 2.2 Provide technical advice and guidance on implementation of design procedure modules.

The Contractor shall provide technical advice and guidance on the implementation of the upgraded design procedure (Task 2.1) via regular (i.e. bi-weekly) virtual meetings. The duration of each virtual meeting is expected to be no more than two (2) hours in length. The Contractor shall submit meeting notes/minutes to the COR/TPOC, via e-mail, at the conclusion of each meeting.

Task 2.3 Perform an example design of a RC shear wall building with a “regular shape” using the upgraded DAD_ETABS software and report on the updated design procedure and the design example.

The Contractor shall employ the upgraded DAD_ETABS software for design of RC buildings to perform design of a RC shear wall building with a “regular” shape. The regular shaped building shall be a prismatic one with a rectangular floor plan and its geometric center in each floor shall be consistent with its mass center. The buildings shall be designed for gravity and wind loads. The gravity loads and, for each of 36 wind directions, the wind pressures at multiple ports on the building facades and the samples of mean wind speeds at the top of the building, will be provided by the NIST TPOC to the Contractor.

The geometry of the buildings will also be specified by the TPOC. Performance limit states for strength, inter-story drift and floor accelerations will be specified as well. Elastic material behavior shall be used throughout at structural analysis/design. The Contractor shall send to the NIST COR/TPOC a report on the updated DAD_ETABS procedure for design of RC buildings and the design example of a RC shear wall building.

Task 3: Develop and implement in DAD_ETABS software the design procedure for a building with an “irregular” shape (e.g., a non-prismatic building or a building with a non-rectangular floor plan). The Contractor shall provide guidance and advice on implementation of the software performed by NIST. The Contractor shall perform design of a high-rise building using the developed DAD_ETABS software.

Task 3.1 Develop a practical design procedure for a building with an “irregular” shape

Based on the DAD design procedures developed by NIST, the Contractor shall develop a procedure for designing a building with an “irregular” shape. The irregular shaped building, different from the building with a “regular” shape stated above, shall have non-prismatic shape along the height, a non-rectangular floor plan, and/or the mass center in each floor that is not consistent with its geometric center.

Task 3.2 Provide technical advice and guidance on implementation of design procedure modules

The Contractor shall provide technical advice and guidance on the implementation of the upgraded design procedure (Task 3.1) via regular (i.e. bi-weekly) virtual meetings. The duration of each virtual meeting is expected to be no more than two (2) hours in length. The Contractor shall submit meeting notes/minutes to the COR/TPOC, via e-mail, at the conclusion of each meeting.

Task 3.3 Perform an example design of a building with an irregular shape using the upgraded DAD_ETABS software and report on the updated design procedure and the design example

The Contractor shall employ the upgraded DAD_ETABS software to perform design of a high-rise building with an irregular shape. The shape and layout of structural members of the building characterizing the irregularity and the construction material (steel or RC) will be specified by the NIST TPOC. The gravity loads and, for each of 36 wind directions, the wind pressures at multiple ports on the building facades and the samples of mean wind speeds at the top of the building, will be also provided by the NIST TPOC to the Contractor. Performance limit states for strength, inter-story drift and floor accelerations will be specified as well. Elastic material behavior shall be used throughout at structural analysis/design. The Contractor shall send to the NIST COR/TPOC a report on the updated DAD_ETABS procedure for design of irregular shaped buildings and the design example of a building with an irregular shape.

Task 4: Develop practical PBD procedures based on specific performance objectives for DAD_ETABS software.

Task 4.1 Summarize the PBD design procedures and their design criteria currently available in standard/pre-standard

The Contractor shall investigate PBD design procedures and design criteria publicly available (e.g., Pre-standard for PBD Design and Standard on Building Code Requirements for Structural Concrete, respectively, published by American Society of Civil Engineers and American Concrete Institute) and report a summary on the practical PBD design procedures and design criteria.

Task 4.2 Develop three practical design scenarios (e.g., occupant comfort performance objectives, operational performance objectives, and continuous occupancy performance objectives) and their detailed structural design requirements for linear and non-linear PBD designs

The Contractor shall develop three design scenarios representing various performance objectives (e.g., occupant comfort performance objectives, operational performance objectives, and continuous occupancy performance objectives) and the associated detailed structural requirements for linear and non-linear PBDs of both steel and RC buildings. The shape and layout of structural members of the building characterizing the irregularity and the construction material (steel or RC) will be specified by the NIST

TPOC.

Task 4.3 Provide technical advice and guidance on development of practical PBD procedures, accounting for the practical design scenarios

The Contractor shall provide technical advice and guidance on the development of the upgraded design procedures (Tasks 4.1 and 4.2) via regular (i.e. bi-weekly) virtual meetings. The duration of each virtual meeting is expected to be no more than two (2) hours in length. The Contractor shall submit meeting notes/minutes to the COR/TPOC, via e-mail, at the conclusion of each meeting.

Task 4.4 Report on the development of practical DAD_ETABS PBD procedures for the performance objectives specified in the three design scenarios

The Contractor shall send to the NIST COR a report on the DAD_ETABS PBD procedures for the performance objectives specified in the three design scenarios.

Task 5: Monthly Progress Report

The Contractor shall submit monthly progress reports no later than the first of each month. The progress reports shall document, at a minimum, the status of each deliverable, which deliverables have been completed under the contract, outstanding deliverables, any delays, reason for delays, and risk/issue management.

NOTE: The contractor shall continue to perform Task 5 throughout the entirety of the period of performance. Therefore, should the Government exercise an optional task (see below) that extends the contract’s period of performance past 24 months, the contractor shall continue to provide the required Monthly Progress Reports detailed in Task 5 through the remainder of the extended period of performance.

2. Optional Tasks (CLINs 0002 – 0005)

THE FOLLOWING TASKS ARE OPTION LINE ITEMS. PRICES QUOTED SHALL BE EFFECTIVE

FOR A PERIOD OF FOUR YEARS FROM THE DATE OF AWARD. AWARD OF OPTION LINE

ITEMS IS AT THE SOLE DISCRETION OF THE GOVERNMENT IN ACCORDANCE WITH FAR

52.217-7. The Government may exercise some, all or none of the following optional tasks at time of award or at any time throughout the base period of performance.

The period of performance for the optional tasks shall be as follows but the total period of performance (base plus optional tasks) shall not exceed 48 months from the date of contract award:

Optional Task 6 (CLINs 0002): 6 months from exercise of option Optional Task 7 (CLINs 0003): 24 months from exercise of option Optional Task 8 (CLINs 0004): 24 months from exercise of option Optional Task 9 (CLINs 0005): 24 months from exercise of option

Task 6: Provide guidance and advice on implementation of the PBD procedure performed by NIST.

The Contractor shall provide technical advice and guidance on implementation of the design procedures for linear and nonlinear PBD (Task 4.4) performed by NIST through regular (bi-weekly) meetings and email correspondence.

Task 7: An example design of a building based on the performance objective in Design Scenario 1.

The Contractor shall employ the DAD_ETABS PBD software (Task 5) to perform PBD of a high-rise building in the case of Design Scenario 1 specified in Task 4.2. The gravity loads and, for each of 36 wind directions, the wind pressures at multiple ports on the building facades and the samples of mean wind speeds at the top of the building, will be provided by the NIST TPOC to the Contractor.

Performance for strength and serviceability of the building shall be based on the performance objectives of Design Scenario 1. If needed, nonlinear material behavior should be allowed at structural analysis/design. The Contractor shall send to the NIST COR/TPOC a report on DAD ETABS PBD procedure and the PBD example of the building in Design Scenario 1.

Task 8: An example design of a building based on the performance objective in Design Scenario 2.

The Contractor shall employ the DAD_ETABS PBD software (Task 5) to perform PBD of a high-rise building in the case of Design Scenario 2 specified in Task 4.2. The gravity loads and, for each of 36 wind directions, the wind pressures at multiple ports on the building facades and the samples of mean wind speeds at the top of the building, will be provided by the NIST TPOC to the Contractor.

Performance for strength and serviceability of the building shall be based on the performance objectives of Design Scenario 2. If needed, nonlinear material behavior should be allowed at structural analysis/design. The Contractor shall send to the NIST COR/TPOC a report on DAD ETABS PBD procedure and the PBD example of the building in Design Scenario 2.

Task 9: An example design of a building based on the performance objective in Design Scenario 3.

The Contractor shall employ the DAD_ETABS PBD software (Task 5) to perform PBD of a high-rise building in the case of Design Scenario 3 specified in Task 4.2. The gravity loads and, for each of 36 wind directions, the wind pressures at multiple ports on the building facades and the samples of mean wind speeds at the top of the building, will be provided by the NIST TPOC to the Contractor.

Performance for strength and serviceability of the building shall be based on the performance objectives of Design Scenario 3. If needed, nonlinear material behavior should be allowed at structural analysis/design. The Contractor shall send to the NIST COR/TPOC a report on DAD ETABS PBD procedure and the PBD example of the building in Design Scenario 3.

Tasks/Specific Requirements – Basic Tasks Task Number

Description Format Quantity/Frequency Due Date

Task 5 Monthly progress reports

Telephone Call or Email

24 On the first day of each month

Task 1.1 Plan on practical design procedure for a steel building

Electronic (Word document)

1 2 months after award

Task 1.2 Meeting Minutes MS Word via Email Bi-weekly Four business days following meeting

Task 1.3 Performance of design of a steel building with a regular shape and report on the procedure and the design example

Electronic (Word document)

1 6 months after award

Task 2.1 Plan on practical design procedure for a RC shear wall building

Electronic (Word document)

1 8 months after award

Task 2.2 Meeting Minutes MS Word via Email Bi-weekly Four business days following meeting

Task 2.3 Performance of design:

a RC shear wall building with a regular shape and report on the practical design procedure for a RC shear wall building and its design example

Electronic (Word document)

1 12 months after award

Task 3.1 Design procedure for a Electronic (Word 1 13 months after building with an irregular shape document) award

Task 3.2 Meeting Minutes MS Word via Email Bi-weekly Four business days following meeting

Task 3.3 Performance of design:

an irregular shaped building and report on the practical design procedure for an irregular shaped building and its design example

Electronic (Word document)

1 17 months after award

Task 4.1 Summary on the PBD design procedures and their design criteria currently available in standard/pre-standard

Electronic 1 19 months after award

Task 4.2 Three design scenarios for various performance objectives and their detailed structural design requirements for linear and non-linear

PBD

Electronic 1 22 months after award

Task 4.3 Meeting Minutes MS Word via Email Bi-weekly Four business days following meeting

Task 4.4 Report on the PBD procedures for the various performance objectives specified in the three design scenarios from Task 4.2

MS Word 1 23 months after award

Tasks/Specific Requirements – Optional Tasks Task Number

Description Format Quantity Due Date

Task 5 Monthly progress reports Telephone Call or Email

TBD (Required monthly throughout the period of performance, including any optional tasks

On the first day of each month exercised) Task 7 Report on an example design of a buildings based on the performance objective in Design Scenario 1

Electronic (Word document)

1 Before or on 23 months after exercise of option

Task 8 Report on an example design of a buildings based on the performance objective in Design Scenario 2

Electronic (Word document)

1 Before or on 23 months after exercise of option

Task 9 Report on an example design of a buildings based on the performance objective in Design Scenario 3

Electronic (Word document)

1 Before or on 23 months after exercise of option

CONTRACTOR RESPONSIBILITIES

The Contractor shall possess the latest, most up-to-date, current version of the ETABS and MATLAB software packages. NIST developed the DAD_ETABS software and will provide it to the Contractor upon award of the contract. The ETABS software is required to use the DAD_ETABS software. Results and deliverable requirements reported on shall be based on the DAD_ETABS software.

For all tasks, the COR will review, provide comments for revision, and/or accept the deliverables within two weeks after receipt of each deliverable, unless stated otherwise above. The contractor shall then respond with the requested revisions, if applicable, within two weeks of receipt of COR comments.

Government-Furnished Property, Material, Equipment, or Information (GFP, GFM, GFE, or GFI) NIST will provide to the Contractor the DAD_ETABS software and information on (i) the geometry of buildings, (ii) the directional aerodynamic pressure datasets on the buildings, (iii) the design parameters for strength and serviceability designs, and (iv) the wind climatological datasets. The information will be emailed securely to the contractor. No personally identifiable information or proprietary data shall be included in the information.

Security N/A

Travel No travel is required.

Special Material Requirements N/A

Other Unique Requirements N/A

Place of Performance

All tasks shall be performed at the Contractor’s facility.

Period of Performance The period of performance of the contract shall be 24 months from the date of award. However, the Government may exercise all, some or none of the Optional Tasks, potentially extending the contract’s period of performance as needed. The maximum potential period of performance of the contract, optional tasks included, is 48 months from date of award.