Chapter 1 General Requirements

Chapter 2 Definitions

Chapter 3 Prescriptive Compliance Method

Chapter 4 Classification of Work

Chapter 5 Repairs

Chapter 6 Alterations - Level 1

Chapter 7 Alterations - Level 2

Chapter 8 Alterations - Level 3

Chapter 9 Change of Occupancy

Chapter 10 Additions

Chapter 11 Historic Buildings

Chapter 12 Relocated or Moved Buildings

Chapter 13 Performance Compliance Methods

Chapter 14 Construction Safeguards

Chapter 15 Referenced Standards

Appendix A Referenced Standards

Chapter A1 Seismic Strengthening Provisions for Unreinforced Masonry Bearing Wall Buildings

Chapter A2 Earthquake Hazard Reduction in Existing Reinforced Concrete and Reinforced Masonry Wall Buildings With Flexible Diaphragms

Chapter A3 Prescriptive Provisions for Seismic Strengthening of Cripple Walls and Sill Plate Anchorage of Light‚ Wood-Frame Residential Buildings

Chapter A4 Earthquake Hazard Reduction in Existing Wood-Frame Residential Buildings With Soft‚ Weak or Open-Front Walls

Chapter A5 Earthquake Hazard Reduction in Existing Concrete Buildings and Concrete With Masonry Infill Buildings

Appendix B Reserved

Repairs as described in Section 402 shall comply with the requirements of this chapter. Repairs to historic buildings shall comply with this chapter, except as modified in Chapter 11.
Except as otherwise required or permitted by this code, materials permitted by the applicable code for new construction shall be used. Like materials shall be permitted, provided no hazard to life, health or property is created.
The work shall not make the building less conforming than it was before the repair was undertaken.
In flood hazard areas, repairs that constitute substantial improvement shall require that the building comply with Section 1612 of the Building Code of New York State.
Hazardous materials that are no longer permitted, such as asbestos and lead-based paint, shall not be used.
Replacement glazing in hazardous locations shall comply with the safety glazing requirements of the Building Code of New York State.

Exceptions:


1. Glass block walls, louvered windows, and jalousies repaired with like materials.
2. Historic glazing identified in Section 1102.5 may be replaced in kind to match historic glazing.
Repairs shall be done in a manner that maintains the level of fire protection provided.
Foam plastic materials that are not permitted to be used in new construction by the Building Code of New York State shall be removed in existing facilities.
Carbon monoxide alarms and detectors shall comply with the Fire Code of New York State.
Repairs shall be done in a manner that maintains the level of protection provided for the means of egress.
Repairs shall be done in a manner that maintains the level of accessibility provided.
Seismic provisions of this chapter shall only apply to buildings built after January 1, 2003. Repairs of structural elements shall comply with this section.
Seismic evaluation and design of an existing building and its components shall be based on the following criteria.
The seismic evaluation and design shall be based on the procedures specified in the Building Code of New York State , ASCE 31 or ASCE 41. The procedures contained in Appendix A of this code shall be permitted to be used as specified in Section 506.1.1.3.
BCNYS level seismic forces. When seismic forces are required to meet the Building Code of New York State level, they shall be one of the following:
1. One-hundred percent of the values in the Building Code of New York State. The R-factor used for analysis in accordance with Chapter 16 of the Building Code of New York State shall be the R-factor specified for structural systems classified as "Ordinary" in accordance with Table 12.2-1 of ASCE 7, unless it can be demonstrated that the structural system satisfies the proportioning and detailing requirements for systems classified as "Intermediate" or "Special."
2. Those associated with the BSE-1 and BSE-2 Earthquake Hazard Levels defined in ASCE 41. Where ASCE 41, the corresponding performance levels shall be those shown in Table 506.1.1.2.

TABLE 506.1.1.2
ASCE 41 AND ASCE 31 PERFORMANCE LEVELSa

OCCUPANCY CATEGORY (BASED ON BCNYS
TABLE 1604.5)
PERFORMANCE LEVEL FOR USE WITH ASCE 31 AND WITH ASCE 41 BSE-1 EARTHQUAKE HAZARD LEVEL
PERFORMANCE LEVEL FOR USE WITH ASCE
41 BSE-2 EARTHQUAKE HAZARD LEVEL
I Life Safety (LS) Collapse Prevention
(CP)
II Life Safety (LS) Collapse Prevention
(CP)
III Note b Note b
IV Immediate Occupancy
(IO)
Life Safety (LS)


a. The charging provisions for Seismic Use Group equivalents to ASCE 31 and ASCE BSE-1 for reduced Building Code of New York State level seismic forces are located in Section 407.1.1.3.
   
b. Performance levels for Occupancy Category III shall be taken as halfway between the performance levels specified for Occupancy Category II and IV.
level seismic forces. When seismic forces are permitted to meet reduced Building Code of New York State levels, they shall be one of the following:
1. Seventy-five percent of the forces prescribed in the Building Code of New York State . The R-factor used for analysis in accordance with Chapter 16 of the Building Code of New York State shall be the R-factor as specified in Section 506.1.1.2 of this code.
2. In accordance with the applicable chapters in Appendix A of this code as specified in Items 2.1 through 2.5 below. Structures or portions of structures that comply with the requirements of the applicable chapter in Appendix A shall be deemed to comply with the requirements for reduced Building Code of New York State force levels.
2.1. The seismic evaluation and design of unreinforced masonry bearing wall buildings in Occupancy Category I or II are permitted to be based on the procedures specified in Appendix Chapter A1.
2.2. Seismic evaluation and design of the wall anchorage system in reinforced concrete and reinforced masonry wall buildings with flexible diaphragms in Occupancy Category I or II are permitted to be based on the procedures specified in Appendix Chapter A2.
2.3. Seismic evaluation and design of cripple walls and sill plate anchorage in residential buildings of light-frame wood construction in Occupancy Category I or II are permitted to be based on the procedures specified in Appendix Chapter A3.
2.4. Seismic evaluation and design of soft, weak or open-front wall conditions in multiunit residential buildings of wood construction in Occupancy Category I or II are permitted to be based on the procedures specified in Appendix Chapter A4.
2.5. Seismic evaluation and design of concrete buildings and concrete with masonry infill buildings in all occupancy categories are permitted to be based on the procedures specified in Appendix Chapter A5.
3. In accordance with ASCE 31 based on the applicable performance level as shown in Table 506.1.1.2.
4. Those associated with the BSE-1 Earthquake Hazard Level defined in ASCE 41 and the performance level as shown in Table 506.1.1.2. Where ASCE 41 is used, the design spectral response acceleration parameters SXS and SX1 shall not be taken less than 75 percent of the respective design spectral response acceleration parameters SDS and SD1 defined by the Building Code of New York State and its reference standards.
Wind design of existing buildings shall be based on the procedures specified in the Building Code of New York State.
Repairs to damaged buildings shall comply with this section.
Regardless of the extent of structural damage, dangerous conditions shall be eliminated.
A building that has sustained substantial structural damage to the vertical elements of its lateral-force-resisting system shall be evaluated and repaired in accordance with the applicable provisions of Sections 506.2.2.1 through 506.2.2.3.
The building shall be evaluated by a registered design professional, and the evaluation findings shall be submitted to the code enforcement official. The evaluation shall establish whether the damaged building, if repaired to its predamaged state, would comply with the provisions of the Building Code of New York State . Wind forces for this evaluation shall be those prescribed in the Building Code of New York State . Seismic forces for this evaluation are permitted to be the reduced level seismic forces specified in Section 506.1.1.3.
If the evaluation establishes compliance of the predamaged building in accordance with Section 506.2.2.1, then repairs shall be permitted that restore the building to its predamaged state using materials and strengths that existed prior to the damage.
If the evaluation does not establish compliance of the predamaged building in accordance with Section 506.2.2.1, then the building shall be rehabilitated to comply with applicable provisions of the Building Code of New York State for load combinations, including wind or seismic forces. The wind design level for the repair shall be as required by the building code in effect at the time of original construction, unless the damage was caused by wind, in which case the design level shall be as required by the code in effect at the time of original construction or as required by the Building Code of New York State, whichever is greater. Seismic forces for this rehabilitation design shall be those required for the design of the predamaged building, but not less than the reduced level seismic forces specified in Section 506.1.1.3. New structural members and connections required by this rehabilitation design shall comply with the detailing provisions of the Building Code of New York State for new buildings of similar structure, purpose and location.
Vertical load-carrying components that have sustained substantial structural damage shall be rehabilitated to comply with the applicable provisions for dead and live loads in the Building Code of New York State . Undamaged vertical load-carrying components that receive dead or live loads from rehabilitated components shall also be rehabilitated to carry the design loads of the rehabilitation design. New structural members and connections required by this rehabilitation design shall comply with the detailing provisions of the Building Code of New York State for new buildings of similar structure, purpose and location.
Regardless of the level of damage to vertical elements of the lateral-force-resisting system, if substantial structural damage to vertical load-carrying components was caused primarily by wind or seismic effects, then the building shall be evaluated in accordance with Section 506.2.2.1 and, if noncompliant, rehabilitated in accordance with Section 506.2.2.3.
For damage less than substantial structural damage, repairs shall be allowed that restore the building to its predamaged state using materials and strengths that existed prior to the damage. New structural members and connections used for this repair shall comply with the detailing provisions of the Building Code of New York State for new buildings of similar structure, purpose and location.
In flood hazard areas, buildings that have sustained substantial damage shall be brought into compliance with Section 1612 of the Building Code of New York State .
Existing electrical wiring and equipment undergoing repair shall be allowed to be repaired or replaced with like material.
Replacement of electrical receptacles shall comply with the applicable requirements of Section 406.3(D) of NFPA 70.
Plug fuses of the Edison-base type shall be used for replacements only where there is no evidence of over fusing or tampering per applicable requirements of Section 240.51(B) of NFPA 70.
For replacement of nongrounding-type receptacles with grounding-type receptacles and for branch circuits that do not have an equipment grounding conductor in the branch circuitry, the grounding conductor of a grounding-type receptacle outlet shall be permitted to be grounded to any accessible point on the grounding electrode system or to any accessible point on the grounding electrode conductor in accordance with Section 250.130(C) of NFPA 70.
Non-"hospital grade" receptacles in patient bed locations of Group I-2 shall be replaced with "hospital grade" receptacles, as required by NFPA 99 and Article 517 of NFPA 70.
Frames of electric ranges, wall-mounted ovens, counter-mounted cooking units, clothes dryers and outlet or junction boxes that are part of the existing branch circuit for these appliances shall be permitted to be grounded to the grounded circuit conductor in accordance with Section 250.140 of NFPA 70.
General. Existing mechanical systems undergoing repair shall not make the building less conforming than it was before the repair was undertaken.
Materials. Plumbing materials and supplies shall not be used for repairs that are prohibited in the Plumbing Code of New York State.
The maximum water consumption flow rates and quantities for all replaced water closets shall be 1.6 gallons (6 L) per flushing cycle.

Exception:
Blowout-design water closets [3.5 gallons (13 L) per flushing cycle].
Resources