BC 1704.41704.4 Concrete construction. The special inspections and verifications for concrete construction shall be as required by this section and Table 1704.4.
Exception: Special inspections shall not be required for the following when specifically exempted on the approved construction documents:
Concrete placement of less than 50 cubic yards (38 m3)‡ provided that the concrete is nonstructural and is not subject to the durability requirements of Section 1904. In such case, testing may be waived by the registered design professional who prepared the structural construction documents.
Nonstructural concrete slabs supported directly on the ground, including prestressed slabs on grade, where the effective prestress in the concrete is less than 150 psi (1.03 Mpa).
Concrete foundation(s) for lightweight fences and recreational equipment.
Concrete patios, site furnishings, garden walls, driveways, sidewalks and similar construction.
Special Inspection:Concrete- Cast in-place and precastCode Section(s):BC 1704.4Minimum Qualifications:Primary Inspector or Inspection Supervisor.
a. PE or RA; and 1 year relevant experienceSupplemental Inspector (Alternative 1),
a. ACI Certification as Concrete Construction Special Inspector (ACI-CCSI)
OR
b. ICC Certification as Concrete Special Inspector (ICC-CSI)Supplemental Inspector (Alternative 2)
a. ACI Certification as an Associate Concrete Construction Special Inspector (ACI-ACCSI)
Note: ACI-ACCSI only permitted to perform inspection under on-site supervision by PE, RA, ACI-CCSI, or ICC-CSI
Inspection Task:Inspection Interval (Continuous/Peri odic)NYC Construction Code Reference SectionReference Standard (e.g. ASTM X1234)Baseline Document (Approved plans, Shop Drawings, Manufacturer’s Instructions, etc.)Comments (e.g. needs test performed by Approved Testing Agency)1. Inspection of Reinforcing steel, including placementPeriodic.1903.5, 1907.1, 1907.7, 1914.4ACI 318:3.5, 7.1-7.7• Approved plans and shop drawings2. Inspection of reinforcing steel welding
a) Weldability
b) Flexural and axial reinforcement
c) Shear reinforcement
d) Other reinforcementa) Periodic
b) Continuous
c) Continuous
d) Periodic
1903.5.3AWS D1.4,
ACI 318:3.5.2
3. Inspect bolts to be installed prior to and during placement of concrete where allowable loads have been increasedContinuous1912.5• Approved plans, shop drawings and manufacturer’s instructions4. Verify use of required design mixPeriodic1904, 1905.2-1905.4, 1914.2, 1914.3ACI 318: Ch 4, 5.2-5.4• Approved Specifications
• Approved Material submittals
5. At the time fresh concrete is sampled to fabricate specimens for strength tests, perform slump and air content tests, and determine the temperature of the concreteContinuous1905.6
1914.10
ASTM C 172
ASTM C31
ACI 318;5.6.5.8 (Note a,b)
• Approved Specifications
• Approved Material submittals
6. Inspection of concrete and shotcrete placement for proper application techniquresContinuous1905.9
1905.10
1914.6
1914.7
1914.8
ACI 318:5.9, 5.10• Approved plans
• Approved shop drawings
7. Inspection for maintenance of specified curing temperatures and techniquresPeriodic1905.11
For concrete cast-in-place projects in Manhasset, NY, special inspections are required for concrete construction as per the NYC Building Code, ensuring compliance with approved plans and codes, especially for projects exceeding 50 cubic yards of concrete.
Here's a more detailed explanation:
What is Cast-in-Place Concrete?
Cast-in-place concrete refers to concrete that is poured and allowed to harden in its final location on the construction site, as opposed to precast concrete which is fabricated off-site.
Why are Inspections Required?
The NYC Building Code mandates special inspections for concrete construction to ensure the quality and safety of the structure.
When are Special Inspections Required?
Special inspections are required for all cast-in-place concrete work that requires a building permit, unless specific exemptions apply.
Projects involving more than 50 cubic yards of concrete placement often require special inspections.
Concrete that is integral to the structural system or the mounting of equipment also requires special inspection.
What are the Inspection Requirements?
Pre-Pour Inspection: This includes verifying formwork dimensions, reinforcing steel placement, and cleanliness.
During Placement: A qualified special inspector must be present during concrete placement to verify proper application techniques.
Post-Pour Inspection: This includes verifying concrete mix, batching, testing, placement, finishing, and curing.
Testing: Concrete samples are tested to ensure they meet the required compressive strength.
Who Conducts the Inspections?
Special inspections must be conducted by a licensed professional engineer or architect registered with the NYC Department of Buildings (DOB).
Where can I find more information?
NYC Building Code: Refer to Chapter 17 of the NYC Building Code for specific requirements regarding special inspections and tests.
Buildings Bulletins: Consult NYC Buildings Bulletins for clarifications and guidance on specific inspection requirements.
Special Inspection Agencies: Contact a registered special inspection agency for assistance with scheduling and conducting inspections.
Urban GC, Inc
Mar 22
Replying to
현장 타설 콘크리트 공사 – 맨해셋, 뉴욕 (Manhasset, NY)
맨해셋 지역에서 진행되는 현장 타설 콘크리트 공사는 뉴욕시 건축법(NYC Building Code)에 따라 특별 검사(Special Inspection)를 받아야 합니다. 이는 특히 콘크리트 사용량이 50입방야드(cubic yards)를 초과하는 경우, 승인된 도면 및 관련 규정 준수를 보장하기 위함입니다.
현장 타설 콘크리트란 무엇인가요?
현장 타설 콘크리트는 콘크리트를 공사 현장에서 직접 부어 굳히는 방식으로, 공장에서 미리 제작해 운반하는 프리캐스트 콘크리트(Precast Concrete)와는 다릅니다.
왜 특별 검사가 필요한가요?
뉴욕시 건축법은 구조물의 품질과 안전을 보장하기 위해 콘크리트 공사에 대한 특별 검사를 의무화하고 있습니다.
언제 특별 검사가 필요한가요?
특별 검사는 다음과 같은 경우에 필요합니다:
50입방야드를 초과하는 콘크리트 타설이 포함된 프로젝트
구조 시스템의 일부로 사용되거나 주요 장비 설치를 위한 콘크리트
건축 허가가 필요한 대부분의 현장 타설 콘크리트 작업
특정 면제 조건이 적용되지 않는 경우
검사 항목은 무엇인가요?
타설 전 검사 (Pre-Pour Inspection)
거푸집 치수, 철근 배근 상태, 현장 청결 등을 확인합니다.
타설 중 검사 (During Placement)
타설 중에는 자격을 갖춘 특별 검사원이 현장에 상주하며 타설 방식과 적절한 시공을 확인합니다.
타설 후 검사 (Post-Pour Inspection)
콘크리트 배합, 타설, 마감, 양생, 시공 방법 등을 확인합니다.
시험 검사 (Testing)
콘크리트 샘플을 채취하여 압축 강도 등 기준에 맞는지 시험합니다.
누가 검사를 수행하나요?
특별 검사는 뉴욕시 건축국(DOB)에 등록된 면허가 있는 전문 엔지니어 또는 건축사가 수행해야 합니다.
더 많은 정보는 어디에서 확인할 수 있나요?
뉴욕시 건축법 17장 (Chapter 17)특별 검사 및 구조 시험에 대한 구체적인 기준이 명시되어 있습니다.
NYC 건축국 공지사항 (Buildings Bulletins)검사 요건에 대한 해설 및 지침을 제공합니다.
등록된 특별 검사 기관승인된 특별 검사 기관에 연락하여 일정 조율 및 검사를 의뢰할 수 있습니다.
Concrete - Cast-in-place & Precast
BC 1704.41704.4 Concrete construction. The special inspections and verifications for concrete construction shall be as required by this section and Table 1704.4.
Exception: Special inspections shall not be required for the following when specifically exempted on the approved construction documents:
Concrete placement of less than 50 cubic yards (38 m3)‡ provided that the concrete is nonstructural and is not subject to the durability requirements of Section 1904. In such case, testing may be waived by the registered design professional who prepared the structural construction documents.
Nonstructural concrete slabs supported directly on the ground, including prestressed slabs on grade, where the effective prestress in the concrete is less than 150 psi (1.03 Mpa).
Concrete foundation(s) for lightweight fences and recreational equipment.
Concrete patios, site furnishings, garden walls, driveways, sidewalks and similar construction.
Special Inspection:Concrete- Cast in-place and precastCode Section(s):BC 1704.4Minimum Qualifications:Primary Inspector or Inspection Supervisor.
a. PE or RA; and 1 year relevant experienceSupplemental Inspector (Alternative 1),
a. ACI Certification as Concrete Construction Special Inspector (ACI-CCSI)
OR
b. ICC Certification as Concrete Special Inspector (ICC-CSI)Supplemental Inspector (Alternative 2)
a. ACI Certification as an Associate Concrete Construction Special Inspector (ACI-ACCSI)
Note: ACI-ACCSI only permitted to perform inspection under on-site supervision by PE, RA, ACI-CCSI, or ICC-CSI
Inspection Task:Inspection Interval (Continuous/Peri odic)NYC Construction Code Reference SectionReference Standard (e.g. ASTM X1234)Baseline Document (Approved plans, Shop Drawings, Manufacturer’s Instructions, etc.)Comments (e.g. needs test performed by Approved Testing Agency)1. Inspection of Reinforcing steel, including placementPeriodic.1903.5, 1907.1, 1907.7, 1914.4ACI 318:3.5, 7.1-7.7• Approved plans and shop drawings2. Inspection of reinforcing steel welding
a) Weldability
b) Flexural and axial reinforcement
c) Shear reinforcement
d) Other reinforcementa) Periodic
b) Continuous
c) Continuous
d) Periodic
1903.5.3AWS D1.4,
ACI 318:3.5.2
3. Inspect bolts to be installed prior to and during placement of concrete where allowable loads have been increasedContinuous1912.5• Approved plans, shop drawings and manufacturer’s instructions4. Verify use of required design mixPeriodic1904, 1905.2-1905.4, 1914.2, 1914.3ACI 318: Ch 4, 5.2-5.4• Approved Specifications
• Approved Material submittals
5. At the time fresh concrete is sampled to fabricate specimens for strength tests, perform slump and air content tests, and determine the temperature of the concreteContinuous1905.6
1914.10
ASTM C 172
ASTM C31
ACI 318;5.6.5.8 (Note a,b)
• Approved Specifications
• Approved Material submittals
6. Inspection of concrete and shotcrete placement for proper application techniquresContinuous1905.9
1905.10
1914.6
1914.7
1914.8
ACI 318:5.9, 5.10• Approved plans
• Approved shop drawings
7. Inspection for maintenance of specified curing temperatures and techniquresPeriodic1905.11
1905.13
1914.9
ACI 318:5.111-5.13• Approved Specifications
• Approved material submittals
8. Erection of precast concrete membersPeriodicACI 318: Ch 16• Approved drawings
• Approved shop drawings
콘크리트 - 현장 타설 및 프리캐스트 콘크리트
BC 1704.4
1704.4 콘크리트 구조물
콘크리트 구조물에 대한 특별 검사 및 확인 사항은 본 조항 및 표 1704.4에 명시된 바에 따라야 합니다.
예외:
아래 항목에 해당하고, 승인된 설계도서에 특별히 면제된 경우에는 특별 검사가 요구되지 않습니다.
구조적 요소가 아니며, 코드 제1904절의 내구성 요건이 적용되지 않는 50입방야드(38 m³) 미만의 콘크리트 타설. 이 경우, 구조 설계 도서를 작성한 등록 설계 전문가(Registered Design Professional)가 시험 생략을 허용할 수 있습니다.
구조물이 아닌 콘크리트 슬래브로, 지면에 직접 지지되며, 콘크리트에 작용하는 유효 프리스트레스가 150psi(1.03 MPa) 미만인 경우.
경량 울타리 및 레크리에이션 장비용 콘크리트 기초.
콘크리트로 된 파티오, 야외 가구, 정원 벽, 진입로, 인도 등 유사한 구조물.
특별 검사 항목: 콘크리트 – 현장 타설 및 프리캐스트
관련 코드: BC 1704.4
최소 자격 요건:
주 검사자 또는 검사 감독관
PE (전문 엔지니어) 또는 RA (등록 건축사)
관련 분야 1년 이상의 경험
보조 검사자 – 대안 1
ACI 인증: 콘크리트 공사 특별 검사원 (ACI-CCSI)또는
ICC 인증: 콘크리트 특별 검사원 (ICC-CSI)
보조 검사자 – 대안 2
ACI 인증: 준 콘크리트 공사 특별 검사원 (ACI-ACCSI)
검사 항목 세부표
검사항목검사 빈도관련 법규기준 표준기준 문서비고1. 철근 배근 상태 점검주기적1903.5, 1907.1, 1907.7, 1914.4ACI 318: 3.5, 7.1–7.7승인된 도면, 샵 드로잉2. 철근 용접 검사
a) 용접성
b) 굽힘 및 축방향 철근
c) 전단 철근
d) 기타 철근a) 주기적
b) 지속적
c) 지속적
concrete cast-in-place projects :
For concrete cast-in-place projects in Manhasset, NY, special inspections are required for concrete construction as per the NYC Building Code, ensuring compliance with approved plans and codes, especially for projects exceeding 50 cubic yards of concrete.
Here's a more detailed explanation:
What is Cast-in-Place Concrete?
Cast-in-place concrete refers to concrete that is poured and allowed to harden in its final location on the construction site, as opposed to precast concrete which is fabricated off-site.
Why are Inspections Required?
The NYC Building Code mandates special inspections for concrete construction to ensure the quality and safety of the structure.
When are Special Inspections Required?
Special inspections are required for all cast-in-place concrete work that requires a building permit, unless specific exemptions apply.
Projects involving more than 50 cubic yards of concrete placement often require special inspections.
Concrete that is integral to the structural system or the mounting of equipment also requires special inspection.
What are the Inspection Requirements?
Pre-Pour Inspection: This includes verifying formwork dimensions, reinforcing steel placement, and cleanliness.
During Placement: A qualified special inspector must be present during concrete placement to verify proper application techniques.
Post-Pour Inspection: This includes verifying concrete mix, batching, testing, placement, finishing, and curing.
Testing: Concrete samples are tested to ensure they meet the required compressive strength.
Who Conducts the Inspections?
Special inspections must be conducted by a licensed professional engineer or architect registered with the NYC Department of Buildings (DOB).
Where can I find more information?
NYC Building Code: Refer to Chapter 17 of the NYC Building Code for specific requirements regarding special inspections and tests.
Buildings Bulletins: Consult NYC Buildings Bulletins for clarifications and guidance on specific inspection requirements.
Special Inspection Agencies: Contact a registered special inspection agency for assistance with scheduling and conducting inspections.