POD 6 RFI Questions and Responses 1- 46.pdf

RFI # Drawing/Spec Reference Category Question Response by Response

1 RFP I - 52.229-S0043

Article indicates the Contractor shall pay all taxes applicable taxes except to the extent that the Contractor obtains tax exempt certificates in Maryland, Virginia and the District of Columbia. Please clarify if SI is tax exempt in Maryland.

OCON

The Smithsonian is recognized by the Internal Revenue Service as a 501(c)(3) tax-exempt educational organization.

2 01 1000-1.6

Section 01 1000-1.6A states " The work includes receiving, unloading, handling, storing, protection, and installing Owner furnished products. 01 1000-1.6B lists FFE as Owner furnished products. Please clarify any FFE to be installed by contractor in addition to the storage equipment rails.

SI

Confirm the collections storage equipment rails & covers.

3 01 8113-1.2A Section 01 8113-1.2A references LEED Silver. Section 01 0000-2.2 references LEED Gold. Please clarify.

AE LEED Gold is correct.

4 SB105NP

Note 2 on SB105NP indicates that the bottom of footing elevations is 2'-6" below the datum. It is assumed that this hasn't been corrected from a previous version of the drawings to read pile caps, and that it should be the top of pile caps not bottom. The pile caps are 60" plus in thickness in most cases, this would put the top of the cap above the slab on grade. Please confirm.

AE

Note 2 only applies to spread footings below exterior retaining walls and does not apply to pile caps.

5 Section 13 0340 Reference Section 13 0340. Please provide contact information for qualified bidder "Conviro Air".'

AE

Contact form for Conviron Air:

https://www.conviron.com/contact/

6 S-012DG

The mockup frames on S-012DG do not have any base plate sizes for the connection for the slabs. Please provide required sizes and anchor bolt information.

AE

Per note on Section 1J and 1E BP6 should be used as the base plate for all columns.

7 S-012DG

There are no details for the connection of the mockup framing members on S-012DG. Will these be bolted connections or welded? Please provide some typical details.

AE

Steel to steel shear connections should follow "Typical Suggested Shear Connections at Gravity Loads" detail on SF502DT. Lateral brace connections should follow "Typical Lateral Brace Connection at Column" typical details on

SF503DT

8 S-012DG

Please confirm the mockup framing indicated on S-012DG should be galvanized, or if a primed steel is acceptable given that it is temporary.

AE

It is acceptable to not galvanize steel to be installed in a temporary condition.

9 A-420EP

In room 6-3001 SI NMNH Collections Storage, the enlarged plan shows the countertop on the East elevation to be Phenolic Resin. In elevation 1B, the material is called out as High-Pressure Compact Laminate. Please clarify which material is required.

AE

Countertops to be as specified. Refer to 12

2553.13 Part 2 Section 2.8

10 SF-601SH; SF-502DT

In the Remarks column in the Base Plate Schedule on SF- 601SH, some of the base plates are indicated to "provide shear lug per typical detail". The typical base plate detail on SF-502DT doesn't indicate any shear lugs. Please provide shear lug design if required.

AE

The shear lugs should follow the requirements of the "Typical Frame Connection at Base of Column Detail" On SF503DT.

11 SF-601SH

On the Base Plate Type Schedule on SF-601SH, base plates 1-14 are called for, but based on the Base Plate Schedule, it doesn't appear that BP6 is used. Please confirm that it is not required.

AE See response to comment #6

333302-22RF-0010030 POD 6 REQUST FOR INFORMATION

12 Section 12 3553.13 A-605DG Please provide performance requirements and material type for the adjustable wall shelving (AS).

AE

Adjustable Wall Shelf Supports: Surface-type steel standards and steel shelf brackets, with epoxy powder-coated finish, complying with BHMA A156.9, Type B04102 and Type B04112.

Shelving Material - Phenolic Resin

13 SB-106NP; SF-502DT

The catwalk platforms shown on SB-106NP do not have any cuts in the platform. It is assumed the detail on SF- 502DT are the applicable section for this area. The size of the base plates indicated on these details is not indicated.

Please provide required sizes.

AE

Yes, "Typical Platform at Electrical Yard" Detail on SF502DT is applicable for the exterior catwalks on SB106NP. Base plates are 8"x8"x1/2" thick with

(2) 3/4" diameter anchor bolts. Column to be welded all around to base plate with 1/4" fillet weld.

14 SB-106NP; SF-502DT

The details for the generator yard catwalks shown on SF- 502DT show a kicker angle/brace. The detail is not scaled, and there doesn't appear to be a way to measure the brace length. In addition, the angles are not laid out on the plans.

Please clarify angle/brace lengths and locations.

AE

Bids should assume (22) braces, 2'-6" long angles, sized as shown in typical detail on

SF502DT.

SF-107MP; SF-305SC;

SF-503DT

The edge condition at the mechanical mezzanine on SF- 107MP indicates detail 2/SF-305SC. This detail indicates a bent plate slab edge and refers to the typical details, which are located on SF-503DT. These details indicate a pour stop system, not a bent plate. Please confirm if steel bent plate is required at the slab edge or if gage pour stop is acceptable at the mezzanine. If plate is required, please provide plate requirements.

AE

Per manufacturer's product guide, an 11" overhang requires a 10 gage pour stop, which is acceptable. Typically a 1/4" thick bent plate is used in lieu of 10 gage metal, and is also acceptable.

16 RFP L.2C

RFP article L.2C requests the name and 3 references for subcontractors that fall under 19 categories be provided at the time the bid is submitted. Can this be provided within 24 hours of submitting the bid?

SI

No, the subcontractors' name and 3 references need to be provided at the same time as the bid.

17 SF-108MP

Keynote 19 on SF-108MP is called out on the plans for a new posts to be added at the corner of the existing framing for the canopy. Its not clear what the elevation of the existing structure is to determine the column length. Please provide top of steel elevation.

AE

Top of Existing steel assumed to be at 294'-3" based on existing drawings. Contractor to verfiy length in field.

18 SF-108MP; SF-303SC

The OH Door Entrance area on SF-108MP has a section cut of 1A/SF-303SC. The roof edge is not clear, is this a bent plate or will a gage pour stop be acceptable? Please clarify.

AE

The slab overhang is 6 1/4" at the OH Door Entrance, which can be accomplished with a 12 gage pour stop per manufacturer's recommendations and is acceptable.

A-315SC; A-514DT;

SF-108MP

There is a note on 8A/A-315SC that indicates metal deck to match existing at the dock canopy. Furthermore, on A- 514DT which shows enlarged details, it implies new steel framing. Based on SF-108MP there doesn't appear to be any new framing or metal decking installed outside of a post. Please confirm new framing/decking is not required, or clarify member sizes, and deck type, thickness and gage that is required.

AE

The only new steel required will be post indicated on SF-108MP. Architectural details on A-514 will be removed and notes on 8A/A-315SC will be revised to reflect existing materials.

20 LP-901DT

Drawing LP-901DT references reforestation of 100 new trees in addition to those already designed in the project.

Please confirm these trees are those shown on Drawing LP-804SP, and not an additional 100 trees.

AE Confirmed

21 M-104FP

The more southern roof curb noted on drawing M-104FP, above the Level 1 equipment room, notes "RH-1". This designation could not be found on any of the parts/equipment schedules. Is this supposed to be a return hood, a relative humidity sensor, or something else?

Please provide designation.

AE

Note should indicate exhaust hood EH-1. RH-1 is an outdated name for EH-1 which was not revised.

22 M-602SH

There are two Cold Storage Room Equipment schedules on M-602SH. Please confirm the distinction between these. Are they only separated because they serve/are located at different areas?

AE

One schedule lists Cold Storage Room equipment, and the other lists Cool Storage Room equipment. Equipment is sorted to serve those two areas.

23 M-602SH

In the lower Cold Storage Room Equipment Schedule, the performance specification for the CSE-ACCU equipment says these units are operating at 21 degrees Celsius. The CSACCU units have both a Fahrenheit and Celsius designation. I believe these units are the same, but just serving different areas. Is the temperature designation for the CSE-ACCU units supposed to be listed as 21 degrees Fahrenheit?

AE

The temperature listed is the suction temperature of the refrigerant system. The CSE-ACCU and CS- ACCU outdoor condensing units are similar, but have different operating conditions due to the different environmental conditions within the Cold/Cool storage rooms. Refer to specification section 130340 for additional information.

24 M-104FP

At grid lines 28 and J (1 example of several) on Drawing M- 104FP, there is a symbol of a circle with a "V" inside of it.

This symbol is not defined in th Mechanical or Plumbing Legends. There is a similar symbol in the Electrical Legend for Power to VESDA Panel, but that can't be correct.

Please define what this symbol means relative to the Mechanical Drawings.

AE This symbol is for a VOC sensor.

25 M-105FP

Drawing M-105FP shows a piece of equipment noted as "DPT-HW-2" near grid lines 28 and C. "DPT" does not shown up in any of the MEP schedules or abbreviations.

Please define what this abbreviation means relative to MEP systems.

AE

DPT is a differential pressure transmitter, indicated on M-702DG. Refer to sequences of operation for use of DPTs in pump control.

26 26 31 00

The Photovoltaic collectors states in the mounting structures to reference Architectural and Structural Specification. This does not appear to be referenced in the Volume 1 specifications or in the drawings. Please provide the mounting structure details for the PV system including roof details if penetrations occur.

AE

PVs are to be a ballasted system with no connection to structure. Panelclaw Roof Mount 10 degree tilt system is the basis of design.

27 M-103FP

Drawing M-103FP states that, the bottom of the return duct must be a minimum of 12'-2" AFF to avoid interference with roll up door, however the Door schedules states door "6-2022.1" is 12'-00'. We believe this may cause an interference with roll up door gear box. Please confirm if any design change is needed.

AE

The duct should clear the door assembly;

however, the duct can be raised if additional space is needed.

28 SF-107MP

The dunnage platform on SF-107MP doesn't appear to have any details that indicate base plates at the HSS posts/columns. It is assumed there is something, please confirm and provide required plate sizes.

AE

Base plates for dunnage posts should be 8"x1'- 2"x1/2" thick. Base plates should be welded to dunnage posts with 1/4" fillet weld and base plates attached to steel beam with (4) 3/4" diameter bolts to top flange of supporting beams.

29 M-602SH

The Fan Coil Unit Schedule has 2 notes designating the BOD for each FCU. Please provide the BOD designation for the FCU's labeled as "Standby".

AE

BOD for standby FCUs (FCU-XB) shall be similar to primary FCUs (FCU-XA).

30 Spec 07 14 16

Specification section 07 14 16 - Cold Fluid-applied waterproofing was provided. This type of waterproofing is typically seen under the topping slab however this does not seem to be referenced in the drawings or details. Please confirm if cold fluid-applied waterproofing is required on this project.

AE

Refer to details on A-513DT. The intent is to provide waterproofing between the slab and grade beam. This is to be the typical condition at all locations unless noted otherwise.

Detail 5A/A-510DT will be updated in the Conformed Set to align with this direction. In detail 5A/A-510DT the waterproofing currently shown on the vertical face of the grade beam will be removed, except for the overlap between the foundation wall and grade beam joint. The cold fluid-applied waterproofing will be applied to the top of the grade beam and tied into the underslab vapor barrier.

09 91 23 - Interior Panting

A-125 CP-A-131 CP

Spec 09 91 23, paragraph 3.3.E. 1 & 2, reference painting of exposed Fire Suppression, Plumbing, HVAC, Electrical, Communication, and Electronic Safety and Security Work in the finished work. Drawing A-125 CP through A-131 CP (specifically, the Ceiling Legend) doesn’t reference painting of the exposed steel structure and specifically calls for the exposed ductwork to remain “unpainted”.

Please clarify if exposed Piping, Electrical, and Fire Suppression Piping will require painting in the exposed ceiling conditions.

AE

Unless noted all exposed piping, electrical and fire suppression piping are to be painted as specified.

09 91 23 - Interior Panting

A-604

Ref. Drawing A-604: Finish Schedule does not have a “Ceiling” designation. Drawings A125 through A131 CP (Ceiling Plans) do not indicate painted finishes on any of the ceilings. Please clarify if Drywall and Exposed Structure ceilings are to receive painted finishes.

AE

Exposed structural ceilings (concrete) shall be unpainted. Drywall ceilings are to be painted.

Spec 099123 - Interior Painting

Paragraph 3.3.E. 1 & 2, reference painting of exposed Fire Suppression, Plumbing, HVAC, Electrical, Communication, and Electronic Safety and Security Work in the finished work. Drawing A-125 CP through A-131 CP (specifically, the Ceiling Legend) doesn’t reference painting of the exposed steel structure and specifically calls for the exposed ductwork to remain “unpainted”.

Please clarify if exposed Piping, Electrical, and Fire Suppression Piping will require painting in the exposed ceiling conditions

AE

Exposed steel structure will be covered by SFRM as detailed. Miscellaneous steel that does not require SFRM shall be painted the same color as walls.

Unless noted all exposed piping, electrical and fire suppression piping are to be painted as specified.

34 A-604

Ref. Drawing A-604: Finish Schedule does not have a“Ceiling” designation.Drawings A125 through A131 CP (Ceiling Plans) do not indicate painted finishes on any of the ceilings. Please clarify if Drywall and Exposed Structure ceilings are to receive painted finishes.

AE

Exposed structural ceilings (concrete) shall be unpainted. Drywall ceilings are to be painted.

35 312000

Spec. Section 312000 (Earthmoving), Part 3 section 3.4 speaks about A. Unclassified excavation so subgrade regardless of material and also B. Classified excavation in respect to dirt & rock and talked about Rock excavation will be on unit price bases. Is this project a Classified or unclassified excavation project in respect to excavation?

SI Use unclassified excavation for this project.

No line striping specification was included with the documents. Please provide a line striping specification or clarify if this scope is to be performed by Others outside of the lump sum bid submission.

AE

Pavement striping shall be included as part of the lump sum bid submission. Assume white, waterborne paint application. A specification will be provided in future Addendum.

37 LP-801 & 802

Soil remediation mixes – there are two type of soil remediations shown on plans (LP-801 & 802), “ 12” & 24” Soil Remediations “ areas and “ 24” Silver Hill Soil Remediation” area. – Please provide mix design per each area.

AE See Specification 329100-Soil Preparation

Due to clutter and confusion between the HVAC ductwork and HVAC piping being shown on the same plan - please consider separating these drawings out within the document set for clarity of use.

AE

The design team believes there is sufficient clarity in the documents to identify ductwork and piping.

Refer to 1H/M-301SC for a section where ductwork/piping is most congested.

Please clarify if any Project Labor Agreements (PLA's) are required on this project due to the project size and recent executive order of President Joseph Biden.

OCON

The FAR council has not finalized the regulations incorporating the EO. We therefore do not need to add it to the solicitation.

40 Vol 3 Specs

Volume 3 of the specifications contains engineering calculations, design narrative, LEED scorecard, product data sheets, etc. These documents are design work products and have found a instances of discrepancies with the final design. We assume all necessary information for construction has been incorporated into the drawings and specifications and these documents are not part of the contract.

Please confirm

AE Confirmed.

41 Roof Details

We are unable to located a detail for the connection of the PV array racks to structure and the roof penetration condition. Please provide these details

AE

PVs are to be a ballasted system with no connection to structure. Panelclaw Roof Mount 10 degree tilt system is the basis of design.

42 Roof

Low roof along CL S.1 has a call out for cross-section 5A / A-314. This call out leads to detail 9J / A-512 which shows a 1 1/2-hour rated expansion joint. Life Safety plan G-113 does not indicate any rating at this location. Please confirm the detail is correct and address life safety plan if necessary.

AE

The joint in 9J/A-512 is required to be a a 1 1/2 hour rated joint as shown. Refer to detail 1K/G- 115VP showing the rating of the wall separating new construction from the existing building. The 1 1/2 hour joint is continuous at intersection of new construction and the existing building.

43 Spec 07 61 00

Spec 07 61 00, Par 2.2 does not provide a product for the sheet metal roofing, but only states to match existing.

Please provide a product for this roofing along with a selection from the manufacturer's colors

AE

This reference will be removed the from the specification.

44 Spec 08 45 23

Spec 08 45 23, Par 2.3. C.3 indicates the fiberglass sandwich panels pattern is to be 10" Verti-kal. Par 2.3.A.1 calls for panel cores to be filled with aerogel. The Kalwall Verti-kal pattern system is not offered with aerogel fill. Also, Par 2.1.H lists U-value and SHGC criteria which appears to be based on the Verti-kal system.

We assume the Verti-kal system without aerogel fill is to be provided. Please confirm

AE

Aerogel fill is not required with the Verti-kal system.

Additionally, the Manufacturer has noted that the available warranty for the Corrosion Resistant Finish is 10 years vs. 20 years.

Sandwich Panel Details

We are unable to locate a detail for any support framing for the fiberglass sandwich panels. We assume the system is sufficient to anchor at the header and sill. Please confirm.

If not, please provide a detail for any additional framing required.

AE

A 4x4 HSS equal to the length of the Kalwall at the corner of the short and long axis is required to be anchored to the column at gridlines 28.1 and A

The panel system itself is structural and will not require additional vertical support other than the corner.

46 Detail 1J / A-513 Detail 1J / A-513 shows a steel box beam for the header framing for the fiberglass sandwich panels. Please provide the size this box beam.

AE

Cantilevered metal stud with fixed connection at vertical parapet extension is required in lieu of a steel box beam.