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HomeMy WebLinkAbout89-39 - Adding Chapter 15.07 of Newport Beach Municipal Code Pertaining to "Earthquake Hazard Reduction"ORDINANCE NO. 89- 39 AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF NEWPORT BEACH ADDING CHAPTER 15.07 OF THE NEWPORT BEACH MUNICIPAL CODE PERTAINING TO "EARTHQUAKE HAZARD REDUCTION °. The City Council of the City of Newport Beach does hereby . ordain as follows: Section 1: Chapter 15.07 of the Newport Beach Municipal Code is hereby added to read as follows: CHAPTER 15.07 EARTHQUAKE HAZARD REDUCTION IN EXISTING BUILDINGS sections: 15.07.010 Purpose. 15.07.020 Scope. 15.07.030 Definitions. 15.07.040 General Requirements. 15.07.050 Seismic Hazard Classification. 15.07.060 Time Limits. 15.07.070 Hardship Extension. 15.07.080 Permits. 15.07.090 Administration. 15.07.100 Adoption of Code. 15.07.110 Analysis and Design. Section 15.07.010. Purpose. • The purpose of this Chapter is to promote public safety and welfare by reducing the risk of death and injury resulting from the effects of earthquakes on unreinforced masonry buildings constructed prior to the adoption and enforcement of Building Codes that required earthquake resistant design. Unreinforced masonry buildings are widely recognized for sustaining life- hazardous damage, including partial or complete collapse during moderate to strong earthquakes. The provisions of this Chapter are intended as minimum standards for structural seismic resistance established primarily to reduce the risk of injury and loss of life. Compliance with these standards will not necessarily entirely prevent injury or • loss of life or prevent earthquake damage to rehabilitated buildings. This Chapter does not require alteration of existing electrical, plumbing, mechanical or fire safety systems unless they constitute a hazard to life or property. This Chapter provides systematic procedures and standards for identification and classification of life- safety hazards in unreinforced masonry buildings based on their present use and condition. Priorities, time periods and standards are also established under which these buildings are required to be structurally analyzed and strengthened or demolished. Section 15.07.020. Scone. A. The provisions of this Chapter shall apply to the following: 1. All masonry buildings constructed, or under construction prior to the adoption and enforcement of the 1935 Uniform Building Code (adopted June 20, 1936). 2. Buildings containing unreinforced masonry foundations or piers, or unreinforced masonry walls or parapets, including unreinforced masonry infill walls and unreinforced masonry veneer walls. B. The following buildings are exempt from the scope of this Chapter. 1. Detached one or two family dwellings. 2. Detached apartment houses containing five or fewer dwelling units and used solely for residential purposes. 3. Structures used solely as warehouses or similar purposes not for human habitation. 4. Buildings owned and occupied by the state or federal governments. Section 15.07.030. Definitions. For the purpose of this Chapter certain terms, phrases, words and their derivatives shall be construed as specified in this Section. Words used in the singular include the plural, and vice versa. Terms, phrases and words not defined herein, shall have their ordinary accepted meaning in accordance with 0 applicable sections of Title 15 of this Code. COMPLETE /COMPLETION. Compliance with the requirements of this Chapter to the satisfaction and approval of the Building Official. ESSENTIAL BUILDING. Those structures which are necessary for post - earthquake emergency operations, including medical facilities and fire and police stations. HIGH HAZARD BUILDING. Refer to 15.07.050(2). MEDIUM HAZARD BUILDING. Refer to 15.07.050(3). LOW HAZARD BUILDING. Refer to 15.07.050(4). OCCUPANT LOAD. The occupant load for the entire structure as determined in accordance with Chapter 33 of the Uniform Building Code, regardless of degree of actual use. OWNER. Any person, agent, firm, corporation or other entity having legal or equitable interest in property. PARAPET. A non - structural wall that extends above the building roof line at the perimeter of the building, intended primarily for fire protection purposes and to conceal mechanical equipment upon the roof. UCBC. The Uniform Code for Building Conservation (ICBO publication #231500), as adopted herein. UNREINFORCED MASONRY. A masonry element which lacks steel reinforcement. • UNREINFORCED MASONRY INFILL WALL. An unreinforced masonry wall element, commonly installed between the structural beams and columns of older concrete or steel framed structures. UNREINFORCED MASONRY VENEER WALL. Decorative unreinforced masonry that is neither reinforced nor anchored to the main structural system of the building. Section 15.07.040. General Requirements. 1. Before January 1, 1991, the owner of each building within the scope of this Chapter shall submit to the Building Department a structural analysis which fully addresses the life - safety hazards of the building. The structural analysis shall be prepared by a civil or structural engineer or architect, licensed by the State of California. The owner shall obtain all required permit(s) to either complete the necessary structural modifications identified in the structural analysis, in accordance with the requirements and time periods of this Chapter, or demolish the building. 3 2. If the owner changes the use or occupancy of a building and the change results in a different Seismic Hazard Classification, the owner shall comply with the time limit for the new classification. No change in use or occupancy will be allowed which causes the building to come under a Seismic Hazard . Classification for which a time limit has already expired. Section 15.07.050. Seismic Hazard Classification. The seismic hazard classifications for this Chapter are hereby established. Each building within the scope of this Chapter shall be placed in one such classification by the Building Department. 1. High Hazard Building. Any building within the scope of this Chapter having one or more of the following conditions present: a. An occupant load of 100 or more. b. A foundation, all or part of which is unreinforced masonry, including footings, piers, stemwalls, etc., places any part of the mudsill or equivalent) of the building twelve (12) inches or more above interior or exterior grade at any point. All measurements shall be vertical. C. Wall(s) constructed of unreinforced masonry and fifteen (15) feet or more in height, all or part, measured vertically from the bottom surface of the wall base (equivalent to sole plate) to the top surface of the wall (equivalent to top plate) . d. Parapet wall(s) constructed of unreinforced masonry; and (i) twenty -four (24) inches or more in height, all or part, measured vertically from the uppermost part of the parapet to the top surface of the contiguous subroof deck, or (ii) in the deteriorated and /or unstable condition, regardless of wall height, as determined by the Building Department. e. More than one (1) story in height, as determined in accordance with Chapter 4 of the Uniform Building Code, including buildings otherwise classified as Low Hazard or Medium Hazard Buildings. 4 f. In a physical condition, as determined by the Building Department, or by the engineer or architect placed in responsible charge by the Owner, to be a hazardous building and dangerous to human life as defined in Chapter 2 of the Uniform Building Code. g. An Essential Building. 3. Medium Hazard Building. Any one story unreinforced masonry building, not classified as a High Hazard Building, having an occupant load between 50 and 100. 4. Low Hazard Building. Any one story unreinforced masonry building, not classified as a High or Medium Hazard Building, having an occupant load of less than 50. Section 15.07.060. Time Limits. 1. For High Hazard Buildings. The owner shall obtain all necessary permit(s) to mitigate all life- safety hazards as identified in the Uniform Building Code by January 1, 1992, and shall complete all abatement work or demolish the building by January 1, 1994. 2. For Medium Hazard Buildings. The owner shall obtain all necessary permit(s) to mitigate all life safety hazards by January 1, 1993 and shall complete all abatement work or demolish the building by January 1, 1995. 3. For Low Hazard Buildings. The owner shall obtain all necessary permit(s) to mitigate all life- safety hazards by January 1, 1994 and shall complete all abatement work or demolish the building by January 1, 1996. 4. For buildings with a mixed seismic hazard classification the most restrictive classification shall apply. Section 15.07.070. Hardship Extension For High Hazard Buildings, the property owner may appeal to the Building Director for an extension as specified in Chapter 3 of the Uniform Building Code. No extensions shall be provided for Medium Hazard and Low Hazard Buildings. Section 15.07.080. Permits. The building owner or his /her agent shall obtain all 5 required permit(s) prior to commencement of work in accordance with the requirements established by the Newport Beach Municipal Code whether the building is to be demolished or altered for compliance. Section 15.07.090. Administration. 1. Responsibility. The Building Department shall be responsible for the administration of this Chapter. 2. Notification. The Building Department shall issue a Notice to the owner of each building within the scope of this Chapter within ninety (90) days of the adoption of this Chapter. The Notice shall be served either personally or by certified registered mail upon the owner as shown in the records of the Orange County Tax Assessor. 3. Contents of Notice. The Notice shall be in writing and shall specify that the subject building has been determined, by the Building Department, to be within the scope of this Chapter, and therefore, is required to comply with the requirements of this Chapter. The Notice shall specify, the Seismic Hazard Classification of the building, (b) the owner's alternatives, and (c) the time limits for compliance, under Section 15.07.060. 4. Relief from Notice.. The owner or his /her agent may obtain relief from the Notice by submitting to the Building Department proof that the building is not within the scope of this Chapter. Proof shall include the investigative method employed and shall be certified by a civil or structural engineer or architect licensed by the State of California. The Building Department may require additional information to substantiate the relief requested. 5. Recordation. Forty -five (45) days after the Notice is served, the Building Department shall record with the office of the Orange County Recorder a certificate stating that the subject building is within the scope of.this Chapter, and that the owner thereof has been ordered to have the building structurally analyzed and altered to comply with this Chapter or demolish the [7 building. If the building is found not to be within the scope of this Chapter, or as a result of structural analysis and alteration is found to comply with this Chapter, or is demolished, the Building Department shall file with the office of isthe Orange County Recorder a certificate terminating the status of the subject building or property as being classified within the scope of this Chapter. Section 15.07.100. Adontion of Code. As published by the International Conference of Building Officials, The Uniform Code for Building Conservation, latest edition, including the Appendix and Guidelines sections, is hereby adopted for use with this Chapter, subject to the following amendments, additions and deletions: Amendment 1: References within the UCBC to the Building Code and other codes shall mean the Uniform Building Code and other model codes as adopted in Title 15 of the Newport Beach Municipal Code. • Amendment 2: UCBC Chapter 5 is deleted. Changes in occupancy or use in buildings within the scope of this Chapter shall conform to the requirements established elsewhere in this Chapter. Amendment 3: UCBC Chapter 6 is deleted. Historical Buildings within the scope of this Chapter may, if qualified, comply with the State Historical Building Code (SHBC) established under Part 3, Title 24 of the California Administrative Code. Amendment 4: All references to, and requirements for, additions to buildings within the scope of UCBC are hereby deleted. Any new construction, other than required to comply with this Chapter, shall comply with the Newport Beach Municipal Code. Section 15.07.110. Analysis and Design. 1. General. Any building within the scope of this Chapter shall be analyzed and structurally modified to resist seismic forces in accordance with the requirements of this Chapter or be demolished. W 2. Information Required on Plans. A. General. The owner shall cause to be submitted to the Building Department the necessary number of complete sets of plans and supporting documentation for the work proposed in accordance with requirements of this Chapter. In addition to the required analysis, the licensed engineer or architect responsible for the analysis shall determine and record on the submitted plans the information required by both this Section and the UCBC. B. Construction Details. Plans for all structural elements related to the seismic retrofit shall contain: (a) An overall description of the subject building, listing and describing specific conditions which constitute or contribute to structural hazards, problems, questions, etc., and in each case, details of the necessary repairs and alterations. (b) The type(s), description, dimensions and condition of the existing foundation of the building, and necessary repairs and alterations. . (c) The type(s), description and dimensions of existing walls, and necessary repairs and alterations. (d) The size(s), spacing(s), and span(s) of floor and roof members and the necessary repairs and alterations. (e) The extent, type and condition of existing wall anchorage to floors and roof, and the necessary repairs and alterations. (f) The extent, type and condition of parapet walls and their connection to walls and roof, and the necessary repairs and alterations. (g) Complete, accurately dimensioned floor plans showing the use of all affected rooms and spaces. (h) Masonry wall elevations with dimensioned openings, corbels, piers, wall thickness(es) and height(s). (i) Extent, type, size condition and adequacy of headers, lintels, etc., over openings in masonry bearing walls, and the necessary repairs and alterations. E (j) The location and extent of cracks or damaged portions of masonry walls, parapets, etc., and the necessary repairs and alterations. (k) The condition of mortar joints throughout, whether pointing is required, and the extent of this need. C. Use of Existing Materials. Where use of existing materials is proposed in the structural design, and established design values acceptable to the Building Department do not exist, in -place testing of such materials shall be performed by an approved special inspector in accordance with Chapter 3 of the Uniform Building Code. The methodology and results of such tests shall be submitted as part of a special inspection report with the permit application. The Building Department shall approve in advance the number and location of such tests. Section 2: This Ordinance shall be published once in the official newspaper of the City and the same shall be effective thirty (30) days after the date of its adoption. This Ordinance was introduced at a regular meeting of the • City Council of the City of Newport Beach held on the 27th day of November, 1989, and was adopted on the 11th day of December, 1989 • by the following vote, to wit: AYES, COUNCILMEMBERS TURNER, WATT, SANSONE, PLUMMER, HART, STRAUSS, COX NOES, COUNCILMEMBERS NONE ABSENT COUNCILMEMBERS NONE PAAi &4� Mayor C." ertic cC: E �= z czCI=z py Dctrc-o of IV* auvc-f*, 01p„rt CA C,70t, -;o ev_�Iy. CCIdt"itlp. rJefF1U.^r A -6216. OW106 ip 150010�t*f. ICat. C709 A -20031. COICO It Jt". IDS3 STATE OF CALIFORNIA County of Orange 61 w ^ wrw rpe war 1p a¢sp taa� �rw I am a Citizen of the United States and a rosldent of the County aforesaid, 1 am over the age of eighteen years. and not a party to or interested in the below d matter I am a principal clerk of the Orange DAILY PILOT. with which Is combined the - PRESS. a newspaper of general circulation, printed and published in the City of Costa Mesa. County of Orange. State of California. and that a Notice of Ordinance of which copy attached hereto is a true and complete copy. was printed and published In the Costa Mesa, Newport Beach. Huntington Beach. Fountain Valley. Irvine. the South Coast communities and Laguna Beach issues of said newspaper for 1 time consecutive weeks to wit the IsSue(5i of December 16 198 9 19e- 198_ 198— 198— 1 declare. under penalty of perjury, that the foregoing is true and correct. Executed on December 16 egg 9 at Costa Mesa, California. Signature PROOF OF PUBLICATION PUBLIC NOTICE ORDINANCE NO. III AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF NEWPORT BEACH ADDING CHAPTER 15.07 OF THE NEWPORT BEACH MUNICIPAL CODE PERTAINING TO "EARTH- QUAKE HAZARD REDUC- TION". To assure compliance with State law effective January 1, 1990 and will provide the criteria needed for enforce- ment of state mandated standards to safeguard Ilfe, health, property and public welfare Within the City of Newport Beach. Subject ordinance was in- troduced on 27th day of No- vember, 1989, and adopted on 11th day of December, 1989. AYES, COUNCIL MEM- BERS TURNER, WATT, SANSONE, PLUMMER, NCIL MEM- alyn Plum - WANDA E. TEXT IS CITY FICE OF THE CITY OF NEW - ' PORT BEACH. Published Orange Coast Daily, Pilot December 16, 1969 Sa956