Section 3104F — SEISMIC ANALYSIS AND STRUCTURAL PERFORMANCE — 2025 California Building Code (Title 24, Part 2)

3104F.1 General. ¶

3104F.1 General. 3104F.1.1 Purpose. The purpose of this section is to establish minimum standards for seismic analysis and structural performance. Seismic performance is evaluated at two criteria levels. Level 1 requirements define a performance criterion to ensure MOT function- ality. Level 2 requirements safeguard against major damage, collapse or major oil spill. 3104F.1.2 Applicability. Section 3104F applies to all new and existing MOTs. Structures supporting loading arms, pipelines, oil trans- fer and storage equipment, critical systems and vessel mooring structures, such as mooring and…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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3104F.2 Existing MOTs ¶

3104F.2 Existing MOTs 3104F.2.1 Seismic Performance Criteria. Two levels of seismic performance shall be considered, except for critical systems (Section 3104F.5.1). These levels are defined as follows: Level 1 Seismic Performance: · Minor or no structural damage · Temporary or no interruption in operations Level 2 Seismic Performance: · Controlled inelastic behavior with repairable damage · Prevention of collapse · Temporary loss of operations, restorable within months · Prevention of major spill ( ≥ 1200 bbls) The Level 1 and Level 2 seismic performance criteria are defined in Table…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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3104F.3 New MOTs. ¶

3104F.3 New MOTs. The analysis and design requirements described in Section 3104F.2 shall also apply to new MOTs. However, new MOTs shall comply with the seismic performance criteria for high spill classification, as defined in Table 31F-4-1. Additional requirements are as follows: 1. Site-specific response spectra analysis (see Section 3103F.4.2.3). 2. Soil parameters based on site-specific and new borings (see Section 3106F.2.2).

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy

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3104F.4 General analysis and design requirements. ¶

3104F.4 General analysis and design requirements. 3104F.4.1 Load combinations. Earthquake loads shall be used in the load combinations described in Section 3103F.8. 3104F.4.2 Combination of orthogonal seismic effects. The design displacement demand at an element, δ d , shall be calculated by combining the longitudinal, δ x , and transverse, δ y , displacements in the horizontal plane (Figure 31F-4-7): Equation 4-16 where: δ d = δ x + δ y Equation 4-17 δ x = δ xy + 0.3 δ xx and Equation 4-18 δ y = 0.3 δ yx + δ yy OR Equation 4-19 δ y = δ yx + 0.3 δ yy and Equation 4-20 δ x = 0.3 δ xy + δ xx…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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3104F.5 Nonstructural components, nonbuilding structures and building structures. ¶

3104F.5 Nonstructural components, nonbuilding structures and building structures. Nonstructural components, nonbuilding struc- tures and building structures at MOTs shall be assessed for Level 2 seismic performance (see Section 3104F.2.1). Consideration shall be given to the adequacy and condition of supports and attachments (or anchorage), strength, flexibility, relative displacement, P-delta effects, and seismically-induced interaction with other components and structures. 3104F.5.1 General. Nonstructural components are mechanical, electrical and architectural components (such as…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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