Tech Questions Responses OKC Parking Garage Tracking Q _ A.pdf

SOLICITATION # 36C77623B0046

PROJECT NAME: OKC Parking Garage 2

TECHNICAL QUESTIONS AND VA RESPONSES

1. The Electrical Sheets do not have any scale associated with them. To do proper take off, scale is important to get the proper lengths of conduit and wire for the different systems.

Answer: Sheet scales are as follows:

ES101 1’=20’-0” SCALE

ES102 1’=30’-0” SCALE

E-101 3/32” = 1’-0” SCALE

E-102 3/32” = 1’-0” SCALE

E-103 1/16” = 1’-0” SCALE

E-104 1/16” = 1’-0” SCALE

E-105 1/16” = 1’-0” SCALE

E-106 1/16” = 1’-0” SCALE

E-401 ¼” = 1’-0” SCALE

E-402 ¼” = 1’-0” SCALE

2. I attended the initial site visit and was told by Cody Cooper that we will need another site visit to inspect and document the existing electrical equipment we will be adding to. This will require the equipment to be unlocked by a representative of the hospital or maintenance staff. Can an additional visit be scheduled?

Answer: No

3. Specifications for raceways in concealed concrete call for rigid Steel, IMC, or EMT. Generally, in outdoor and precast structures, schedule 40 pvc is used to prevent corrosion and staining of concrete. Will it be permissible to use Sch 40 PVC when concealed in precast or poured concrete?

Answer: Concrete encased conduits shall be PVC.

4. The DBA wage determination document attached does not have Oklahoma County on it.

This project is in Oklahoma County. Will we be using Davis Bacon wage rates for Oklahoma County?

Answer: Yes, you will be using David Bacon Wage rates For Oklahoma County. I updated the file with the correct county information where project will be performed.

5. Plans on pages ES101 note 15 and CU101 note E3 call for an allowance for relocation of the medium voltage primary. Do we need to put this allowance in the electrical contractors bid, or will this be by the general contractor? If so, what is the amount? What will the Electrical Contractors responsibility matrix include on this part of the project?

Answer: The intent is for the contractor to coordinate with the utility company, to determine the cost of the allowance. The utility company was involved to a significant degree during the design and is aware of the extent of the relocation.

6. What is the line of delineation where the Power Utility company responsibility ends, and the electrical contractor begins? This is usually at the meter and perhaps more clarity will present itself at the next site visit.

Answer: The VA owns their own medium voltage distribution system and the responsibility of the local utility ends at the utility company demarcation point.

7. Plans on ES101 call for 2 lighted bollards. There is nothing on the light fixture schedule for this fixture. Is this fixture being provided by the electrical contractor or will it be by others?

Answer: All lighted bollards are to be provided by the electrical contractor. This includes the fixed, lighted anti-ram bollards indicated on the site plan. Refer to specification section 34 71 13 for more detailed information on the basis of design product.

8. There is mention on demolition plan AD 100 note 4 to see electrical drawings for demolition of existing equipment. There is not a Demolition page(s) in the electrical drawings.

Answer: Demolition requirements to be added to Specification Section 02 41 00 Demolition regarding treatment of removed materials.

9. Please confirm a professional photographer i – Please confirm what testing service the government will provide.

Answer: None

10. 1.3 – Please confirm VA will carry the allowance to pay local utility company. If GC is to carry allowance, please provide dollar amount.

Answer: Per specification 01 00 00 - General Requirements: "The GC is solely responsible for hiring the utility company to relocate the existing medium voltage line. At the time of completion of design documents, the utility company confirmed that the cost for this effort would be approximately $200,000.00.”

11. Do the deductive alternates change the POP?

12. 01 00 00 – 27 – 1.29 Please confirm a professional photographer is required for this project and the photos will need to be indexed. Can QC provide photography?

13. Please confirm the onsite personnel requirements. Will this project require three separate individuals to fulfill the Superintendent, SSHO and QC role?

Answer: Confirmed

14. 01 45 29 – 16 3.18 – Can DOR provide # of tests required, or a minimum for budget purposes?

Answer: 20 Minimum

15. 01 45 35 – 5 Please provide a schedule of special inspections that will be required for this project that the SIOR will be required to perform.

Answer: N/A

16. 03 41 33 – 1 Please confirm Manufacturer must be certified by prestressed concrete institute.

Answer: Confirmed

17. 03 45 00 – 2 Please confirm Erector must be qualified by the precast/prestressed concrete institute (PCI)

Answer: This is not an explicitly requirement of the spec. Per section 1.3.E, erector must be regularly engaged for at least 5 years in erection of precast structural concrete similar to requirements of this project, and per section 3.1.C, must be a competent erector in accordance with PCI MNL-127, the PCI Erector's Manual.

18. 05 12 00 – 3 Please confirm both steel fabricator and erector must be AISC certified.

Answer: Per section 1.5.A, Fabricator must be AISC certified. Per section 1.5.B, Erectcor must be AISC certified.

19. 14 24 00 – Please provide BOD for elevator.

Answer: Attached

20. 25 10 10 – Please provide BOD or the Advanced Utility Metering System.

Answer: The intent of the utility metering is a performance-based specification. Any system which meets the requirements of the specification may be used, both internal to the electrical gear and eternal to the electrical gear.

21. 25 10 10 – Does the facility have a exclusive agreement with a vendor for the AUMS system?

22. Will submittal exchange be required for this project?

Answer: Some sort of sharing platform is required I.E. Submittal Exchange, Procore, etc

23. For the solar panels that are being salvaged, please describe how the contractor will deliver the panels to the VA. Will contractor deliver the panels to a building on the campus, where is the building located, will there be adequate capacity to store the panels?

Answer: The panels are to be demo’d and dumped by the awarded GC. Please include dump fees for the panels.

24. Will undercuts and unsuitable soils be considered an extra to the contract?

Answer: No, the cost of undercuts or removal of unsuitable soils shall be included in the bid and not considered an extra to the contract

25. Will soils require testing before hauling off site?

Answer: Testing will be required only if the soil material is considered to be contaminated, or as otherwise directed by the Resident Engineer

26. If soils are contaminated will the cost of disposal be considered an extra to the contract?

Answer: No, the cost of disposal shall be included in the bid and not considered an extra to the contract

27. SD101 – Please provide a plan view showing the existing solar panels to be removed.

Answer: Please see sheet SD102. There is a dashed outline indicating "Approx. Outline of PV

Array", this entire outline represents the extents of the solar panels. Approximate size and quantity of individual PV panels can be determined from Google Maps imagery.

28. Are asbuilts for the piers for full demo available?

29. What is the approximate depth of the full piers for demo?

Answer:

The design team does not have existing drawings for the PV Array canopy, total depth of existing piers is not known. They do not likely extend below the elevation of weathered rock.

Comparing the "expected weathered rock el." from the Caisson Elevation schedule on sheet

S304 for nearby column locations would yield reasonable approximate estimates of anticipated length of existing piers.

30. Does the Landscaping have to be completed for Phase 1 Parking or can it wait until Phase 2

Landscaping is ready, and be done at one time?

Answer: Landscape plans are not phased, therefore that determination needs be be made by the governing jurisdiction and/or client.

31. Will temp electrical power service be provided by the Government for the temp construction trailers and temp construction power to the contractor at no cost or should the

Contractor contact the local utility provider for hook-up costs and rates? It is understood that the connections, equipment, and temporary wiring is by the contractor.

Answer: VA to respond if temporary connection point will be provided and allowed, or if the contractor is to bring in their own service to the site for construction.

32. Spec Section 01 00 00 item 1.20 C indicates that the contractor shall install meter at the contractor’s expense and furnish the Medical Center a monthly record of the contractor’s usage of electricity. Please confirm that this is a requirement of the contract.

33. Where can the electrical subcontractor temporarily tie into existing infrastructure for temporary power for the jobsite trailer and the temp construction power for the project?

Answer: None available

34. Where can the plumbing contractor temporarily tie into the existing infrastructure for temporary water for the construction?

Answer: None available

35. Spec Section 01 00 00 item 1.29 indicates to provide a commercial photographer, along with what is required, for photographic documentation. Please confirm that this is required.

Answer: No

36. Spec Section 01 35 26 item 1.9 indicates to provide a Certified Safety Professional to perform periodic monthly inspections. Please confirm that this is required.

37. There are several references in the drawings that indicate to provide cmu and concrete with textured finish. Example: Sheet AE 201 Key Note 11 and 12. Please advise on the design intent for the textured finish.

Answer: The C.I.P concrete walls of stair two, CMU parapet and the CIP concrete shear walls on the North and south sides shall receive the stucco finish per spec section 09240. Precast units will have texture provided by manufacturer on panels.

38. Sheet AE303 Section 3 indicates that the structural precast concrete is to be a sandwich panel with minimum R13 insulation. Please confirm this is correct.

Answer: This is required for the panels around the elevator and the stair.

39. We have not been able to locate a finish schedule for the project. Specification section 09 06

00 Schedule for Finishes is incomplete. Please provide finish schedule that indicates the design intent of what and where the finishes are located.

Answer: Finish Schedule has been revised and will be provided with response.

40. There is a specification 09 24 00 Portland Cement Plastering but there is no indication on the plans of where the plastering is to be installed. Please advise.

Answer: This section is used for textured finishes on the CIP concrete and CMU exterior walls were indicated

41. There is a specification 09 67 23.20 Resinous Epoxy but there is no indication on the plans of where the flooring is to be installed. Please advise.

Answer: This is required in the Elevator Lobby 200 on Level Two of the Parking Structure. Only space required. Provide integral base at CMU/concrete walls, not at storefront windows.

42. There is a specification 09 96 59 Resinous Wall Coatings but there is no indication on the plans of where the coating is to be installed. Please advise.

Answer: This is required in the Elevator Lobby 200 on Level Two of the Parking Structure. This is for CMU/Concrete walls only.

43. On sheet AW 101 note 7 indicates to apply a sealer in accordance with 07 19 00 to all slab surfaces and up vertical surfaces 24 inches. Please confirm that this applies to the slab on grade and all precast concrete decks and walls. Are there any other surfaces that the sealer should be applied to?

Answer: AD100 says to demo solar panel array It is confirmed that the sealer should be applied to all slab surfaces and up vertical surfaces 24 inches. This includes the slab on grade and all precast concrete deck and wall up to 24 inches. The sealer should not be applied to any other surfaces.

44. There is a specification section 10 26 00 Wall and Door Protection; however, we have not been able to locate any wall and door protection on the plans. Please advise.

Answer: To be installed on the 90-degree corners of all columns or interior CMU walls in side the parking structure, see specification section 05 50 00 Metal Fabrication for corner guard fabrication. Use 8'-0" tall guards on all corners.

45. Please confirm that all attachment details in the drawings and specs associated with the mechanical, electrical, plumbing and fire sprinklers have been designed in accordance with

13 05 41 Seismic Restraint Requirements. If seismic restraints are not necessary, please advise.

Answer: Per ASCE 7-16, our systems are exempt from the requirements of seismic bracing since we are in Seismic Design Category B per the structural engineer.

46. Please provide the name of the VAMC’s existing systems (manufacturer and/or contractor) for the following:

a. Fire Alarm System

b. Emergency Blue Light Call System

c. Video Surveillance

d. Physical Access Controls

Answers:

FA- Summit Fire SPCWL .EBLCS- Nurse Responder . Video Surveillance- ADT PAC-8216ABP00DK - Description: TS Wallmount Keypad Contact Smart Card Government Pigtail Wiegand Default Key. HF: PIV, PIV-I, CIV, CAC, TWIC, uTrust TS, MIFARE Classic, MIFARE DESFire EVx, ISO15693 UID, ISO14443A UID; LF: HID® Prox, Indala®, Casi Rusco®, AWID and others 8116ABP0L2B - TS Wallmount Contact Smart Card Government Pigtail Wiegand. HF: PIV, PIV-I, CIV, CAC, TWIC, uTrust TS, MIFARE Classic, MIFARE DESFire EVx, ISO15693 UID, ISO14443A UID; LF: HID® Prox, Indala®, Casi Rusco®, AWID and others. 200 bit FASCN. Software we use is LENEL Lenel x2220 and 1320 s3 boards are the communication boards we use.

47. Deduct Alt 3 - does alternate include steel framing, roofing, west concrete wall and sidewalk or just steel framing and roof assembly?

Answer: Structural Response: Per Deduct Alternate section of structural general notes on sheet

S003, "Removal of covered walkway on west side of parking garage, embeds to remain". The intent of the deduct alternate is to build all of the concrete elements now, and allow for a future construction of the steel canopy at a later date.

48. AD100 says to demo solar panel array, SD102 says to remove and return to Owner.

Please verify AD100 is correct.

Answer: The panels are to be demo’d and dumped by the awarded GC. Include dump fees for the panels.

49. Note on AE401 calls out textured finish. Please clarify.

Answer: The C.I.P concrete walls of stair two, CMU parapet and the CIP concrete shear walls on the North and south sides shall receive the stucco finish per spec section 09240. Precast units will have texture provided by manufacturer on panels.

50. Note on E-001 calls for PVC conduit to be used where concrete encased. Spec section 26 05 33 part 3.3 calls for conduit in concrete to be rigid steel, IMC or EMT.

Please clarify.

Answer: Concrete encased conduits shall be PVC.

51. Does the VA have a contract administrator under contract for this project to process submittals, answer RFIs, etc.?

52. Will another site visit be available?

53. The electrical sheets do not include any scale. Can that be provided for quantity take off purposes?

Answer: See response to Question 1 regarding scale.

54. Page PP-101 appears to show a 2" domestic water line routing over head from mechanical room 101, North along column line C then East along column line 9 to the stair well, please confirm this water line is overhead. If so, does it require heat trace? If heat trace is required, please provide a specification.

Answer: The water line is overhead. No heat trace required. The pipe is to be drained for winter. A drain valve is to be installed in mechanical room per detail 11/P-501 to allow for winterization.

55. Note 13 on page PP-101 refers to a pipe guard for the storm drain conductor, there is no detail or spec for a pipe guard. Who is responsible for providing and installing the pipe guard? Please provide a spec for a pipe guard.

Answer: Refer to detail 5/S311 for pipe guards adjecent to columns. Pipe guards are provided by Architectural

56. There is a discrepancy in the elevations of the foundation system that needs to be addressed to appropriately determine the grading and caisson installation plan. Plan sheet

S304 indicates the top of caisson elevation for each caisson. The elevation identified for the caissons on the plan sheet is the same as the elevations identified for the top of grade beams on sheet S100. Please clarify the elevations required for the caissons and grade beams.

Answer: The T/GB (top of grade beam) elevations found on S100 are correct for the top of grade beam elevations. For top of caisson elevations, use the T/Caisson elevations listed on S304 and subtract the elevation by the caisson cap thickness per 1/S304 to get the accurate T/Caisson elevation.

57. Refer Elevation 3/S211, note calls out “Precast Wall”. Refer Elevation 1/AE201, note #5 calls out wall as cast-in-place (CIP) concrete. We would recommend that all walls below grade and acting as retaining walls, should be CIP. If this is not addressed before the Bid, then the Precaster will be forced to price the walls under discrepancy and the Cast-In-Place Concrete Contractor will be forced to price the same walls.

Answer:

58. Refer Plan 2/S021, calls out 30” Double Tees and Detail 7/S311 calls out 28” Double Tees.

Our normal parking garage Double Tee is 28” deep. Are 28” Double Tees acceptable?

Answer: Yes

59. Refer Table 3/S301, Note 9, fiber is not typically used for cast-in-place topping slabs in Oklahoma. Is fiber required?

60. Refer Table 3/S301, Note 2, do not use Light Weight Concrete unless specifically indicated.

Can Light Weight Concrete be used for the Double Tees. This would be a sizable reduction in price because the light weight concrete would allow us to ship (2) Double Tees in lieu of (one) hardrock Double Tee. This would also lighten the loads on the foundations.

Answer: Concur

61. In a phone conversation with the Engineer of Record (EOR), Lucas Nisley, he indicated that he would provide the lateral design package in coordination with the selected Precaster, but will not provide the CIP “Topping Slab” design. The field applied topping slab (by others) will need to be designed to enable the CIP Contractor to properly bid this project. The “Topping Slab” design will need to be provided under the Precaster’s Contract or the General Contractor’s (GC) Contract. We recommend, the GC handle the Contract with either the EOR or an outside Engineer with precast concrete experience. Your local precaster can provide recommendations, if the EOR is not interested or available.

Answer: Concur

62. Refer Sheet S212, Elevations 1 – 6 calls out base shear of the shearwalls transferred to the foundations. There appears to be a discrepancy between the loading of the East-West

Shearwalls and the North-South oriented shearwall base loads. The summation of the loads in the E–W direction are 1700k and the summation of the shearwall loads in the N–S direction are 4810k. In our experience, we are accustomed to the total base shear in the E-

W direction being similar in magnitude to the total base shear in the N-S direction. If it is determined that this is a discrepancy in need of correction, it may also result in changes to the cast-in-place concrete foundation design (by others).

Answer: There is no discrepancy in the base shears listed. The difference in magnitudes of the base shears in each direction is due to variation in the building stiffness between the two directions.

Specifically In the N/S direction of the structure, the calculated building period is 0.235 seconds, resulting in a Cs value of .091. In the E/W direction of the structure, the calculated building period is

0.938 seconds, resulting in a Cs of 0.29. Since the structure is precast concrete, and is a performance specified delegated design system, the precast contractor’s engineer may calculate the natural frequency of the structure independently and use more favorable values of Cs as substantiated by analysis. Also, the precast supplier may opt to use an Intermediate Precast Shear wall lateral system, which would provide a higher R, and more favorable Cs value as well.

63. Refer Sheet S003, STRUCTURAL PRECAST CONCRETE (PARKING GARAGE), calls out 1” camber for double tees. This camber can be achieved in a “pretopped double tee”, but this is designed as a “field topped double tee” and that chamber will be exceeded.

Answer: It is acceptable to exceed the stated camber.