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// CODE SNIPPET

2.1.2.1.1 Nonconforming Buildings Without Construction Documents

California Administrative Code 2019 > 6 Seismic Evaluation Procedures for Hospital Buildings > 2 Procedures for Structural Evaluation of Buildings > 2.1 Site Visit, Evaluation and Data Collection Procedures > 2.1.2 Data Collection > 2.1.2.1 Building Characteristics > 2.1.2.1.1 Nonconforming Buildings Without Construction Documents
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Where the available construction documents do not provide sufficient detail to characterize the structure, the evaluation may be based on field surveys, summarized in as-built drawings. These drawings must depict building dimensions, component sizes, reinforcing information (for concrete and masonry elements), connection details, footing information, and the proximity of neighboring structures. All parts of the building that may contribute to the seismic resistance or that may be affected by the seismic response of the structure must be identified. The field survey shall establish the physical existence of the structural members, and identify critical load bearing members, transfer mechanisms, and connections. The survey shall include information on the structural elements and connector materials and details. Performing the field survey will entail removal of fireproofing or concrete encasement at critical locations to permit direct visual inspection and measurement of elements and connections. Nondestructive techniques such as radiographic, electromagnetic and other methods may be used to supplement destructive techniques.
  1. Steel elements. Steel elements shall be classified by structural member type (e.g., rolled or build-up, material grade, and general properties). The survey shall note the presence of degradation or indications of plastic deformation, integrity of surface coatings, and signs of any past movement. For degraded elements, the lost material thickness and reduction of cross-sectional area and moment of inertia shall be determined. Visual inspection of welds shall be per American Welding Society D1.1, "Structural Welding Code-Steel." Structural bolts shall be verified to be in proper configuration and tightened as required in the AISC Steel Construction Manual. Rivets shall also be verified to be in proper configuration and in full contact, with "hammer sounding" conducted on random rivets to ensure they are functional. Nondestructive testing methods, such as dye penetrant and magnetic particle testing, acoustic emission, radiography and ultrasound shall be used when visual inspection identifies degradation or when a particular element or connection is critical to seismic resistance and requires further verification. For buildings in which archaic cast and wrought irons are employed, additional investigations to confirm ductility and impact resistance shall be conducted.
  2. Concrete elements. The configuration and dimensions of primary and secondary structural elements shall be established. The configuration and condition of reinforcing steel shall be assessed, through removal of concrete cover and direct visual inspection, and through nondestructive inspection using electromagnetic, radio-graphic and other methods. Critical parameters of the reinforcing system, such as lap splice length, presence of hooks, development within concrete, degree of corrosion and integrity of the construction shall be established in sufficient detail to perform the structural evaluation.
  3. Masonry elements. The configuration and dimensions of masonry elements shall be established. The configuration and condition of reinforcing-steel shall be assessed, through removal of masonry cover and direct visual inspection, and through nondestructive inspection using electromagnetic, radiographic and other methods. Critical parameters of the reinforcing system, such as lap splice length, presence of hooks, development within concrete, degree of corrosion and integrity of the construction shall be established in sufficient detail to perform the structural evaluation.
  4. Wood elements. The configuration and dimensions of wood elements; the connections between wood elements; and the connections between wood and other structural components or elements such as concrete or masonry walls shall be established. The configuration and condition of wood members, including size, type, grade, condition and quality shall be assessed, through removal of finish materials, and examination of unfinished areas such as attics, crawl spaces and basements. Critical connections and elements shall be visually inspected, using invasive procedures or removal of finishes where necessary. For shear walls, select locations shall be exposed to allow evaluation of sheathing material, nail size, spacing and installation (e.g., overdriven or nails that miss or split the framing members). The base connections of shear resisting elements shall be inspected and evaluated for their adequacy to connect the base of the structure to the foundation or structure below.
  5. Foundation elements. In the absence of dependable construction drawings, determination of the size and detailing of the foundation system requires invasive procedures. The evaluator shall select representative footings for exposure to establish footing size and depth. Conservative assumptions regarding the reinforcement may be made considering code requirements and local practice at the time of the design. In the absence of evidence to the contrary, it may be assumed that the foundation elements were adequately designed to resist actual gravity loads to which the building has been subjected.

Related Code Sections


2.1.2.1.1 Seismic Evaluation Procedures for Hospital Buildings, Nonconforming Buildings Without Construction Documents
Where the available construction documents do not provide sufficient detail to characterize the structure, the evaluation may be based on field ...
California Administrative Code 2016 > 6 Seismic Evaluation Procedures for Hospital Buildings > 2 Procedures for Structural Evaluation of Buildings > 2.1 Site Visit, Evaluation and Data Collection Procedures > 2.1.2 Data Collection > 2.1.2.1 Building Characteristics > 2.1.2.1.1 Nonconforming Buildings Without Construction Documents
2.1.2.1.1 Seismic Evaluation Procedures for Hospital Buildings, Nonconforming Buildings Without Construction Documents
Where the available construction documents do not provide sufficient detail to characterize the structure, the evaluation may be based on field ...
California Administrative Code 2019 > 6 Seismic Evaluation Procedures for Hospital Buildings > 2 Procedures for Structural Evaluation of Buildings > 2.1 Site Visit, Evaluation and Data Collection Procedures > 2.1.2 Data Collection > 2.1.2.1 Building Characteristics > 2.1.2.1.1 Nonconforming Buildings Without Construction Documents
2.5.3.2 Seismic Evaluation Procedures for Hospital Buildings, Nonconforming Buildings
An unmitigated "False" answer to any evaluation statement shall result in nonconforming buildings being placed in SPC 1, unless directed otherwise ...
California Administrative Code 2019 > 6 Seismic Evaluation Procedures for Hospital Buildings > 2 Procedures for Structural Evaluation of Buildings > 2.5 Final Evaluation > 2.5.3 Final Evaluation > 2.5.3.2 Nonconforming Buildings
301A.3.2 Provisions for All Compliance Methods, Nonconforming Buildings
Alterations, additions and changes of occupancy to existing buildings or structures designed in accordance with the Pre-1973 building code ...
California Existing Building Code 2019 > 3A Provisions for All Compliance Methods > 301A Administration > 301A.3 Alteration, Addition or Change of Occupancy > 301A.3.2 Nonconforming Buildings
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