• Codes
  • Features

    Features Overview

    Go to features
    Reference

    Reference.

    A reliable and up-to-date source of codes.
    Research

    Research.

    Rapidly and efficiently calculate project parameters.
    Collaboration

    Collaboration.

    Get everyone on the same page and streamline code research.
    Workflows
    Architects General Contractor Building Official & Plans Examiner Inspectors Owner Subcontractors Code Consultants
  • Pricing
  • Login
  • Sign Up
Sign Up
Login
  • Code Library
  • Features
  • Pricing
  • About
  • Careers
  • Help
  • Contact
  • Terms
  • Privacy
Sign Up
Upgrade to Premium
Code calculators: Code Calculators automatically generates a detailed list of requirements.
REFERENCE
Amendment Styling
Industry-leading search
Code diagrams
RESEARCH
Code calculators
Filter by topic
Code compare
Code sheet exports
COLLABORATION
Team projects
Bookmarks
Comments
START 2 WEEK FREE TRIAL
Have an account? Sign in
// CODE SNIPPET

A509.3.3.3 Bilinear Representation of the Capacity Spectrum

2010 Existing Building Code of NY > A5 Earthquake Hazard Reduction in Existing Concrete Buildings and Concrete With Masonry Infill Buildings > A509 Tier 3 Analysis Procedure > A509.3 Capacity Spectrum Analysis Procedure > A509.3.3 Description of Analysis Procedures > A509.3.3.3 Bilinear Representation of the Capacity Spectrum
JUMP TO FULL CODE CHAPTER
A bilinear representation of the capacity spectrum curve obtained in Section A509.3.3.2 shall be used in estimating the appropriate reduction of spectral demand. The first segment of the bilinear representation of the capacity spectrum shall be a line from the origin at the initial stiffness of the building using the component initial stiffness specified in Table A508.1. The second segment of the bilinear representation of the capacity spectrum shall be a line back from the trial performance point, api , dpi , at a slope that results in the area under the bilinear representation being approximately equal to the area under the actual capacity spectrum curve. The intersection of the two segments of the bilinear representation of the capacity spectrum shall determine the yield point ay , dy .

Related Code Sections


A509.3.3.3 Earthquake Hazard Reduction in Existing Concrete Buildings and Concrete With Masonry Infill Buildings, Bilinear Representation of the Capacity Spectrum
A bilinear representation of the capacity spectrum curve obtained in Section A509.3.3.2 shall be used in estimating the appropriate reduction ...
2010 Existing Building Code of NY > A5 Earthquake Hazard Reduction in Existing Concrete Buildings and Concrete With Masonry Infill Buildings > A509 Tier 3 Analysis Procedure > A509.3 Capacity Spectrum Analysis Procedure > A509.3.3 Description of Analysis Procedures > A509.3.3.3 Bilinear Representation of the Capacity Spectrum
A509.3.3.5 Earthquake Hazard Reduction in Existing Concrete Buildings and Concrete With Masonry Infill Buildings, Calculation of the Performance Point
of intersection of the capacity spectrum defined in Section A509.3.3.2 and the demand spectrum defined in Section A509.3.3.4 is within 5 percent ...
2010 Existing Building Code of NY > A5 Earthquake Hazard Reduction in Existing Concrete Buildings and Concrete With Masonry Infill Buildings > A509 Tier 3 Analysis Procedure > A509.3 Capacity Spectrum Analysis Procedure > A509.3.3 Description of Analysis Procedures > A509.3.3.5 Calculation of the Performance Point
A509.4.2 Earthquake Hazard Reduction in Existing Concrete Buildings and Concrete With Masonry Infill Buildings, Target Displacement (δt)
of static pushover analysis where the nonlinear base-shear roof-displacement curve of the building is characterized by a bilinear relation (see Section ...
2010 Existing Building Code of NY > A5 Earthquake Hazard Reduction in Existing Concrete Buildings and Concrete With Masonry Infill Buildings > A509 Tier 3 Analysis Procedure > A509.4 Displacement Coefficient Analysis Procedure > A509.4.2 Target Displacement (δt)
25.4.8.3 Reinforcement Details,
obtained from the bilinear relationship defined by Eq. (25.4.8.1) ...
Building Code Requirements for Structural Concrete of New York State > 25 Reinforcement Details > 25.4 Development of Reinforcement > 25.4.8 > 25.4.8.3
24.2.3.9 Serviceability Requirements,
analysis. It shall be permitted to base deflection calculations on a bilinear moment-deflection relationship or I e in accordance with Eq ...
Building Code Requirements for Structural Concrete of New York State > 24 Serviceability Requirements > 24.2 Deflections Due to Service-Level Gravity Loads > 24.2.3 Calculation of Immediate Deflections > 24.2.3.9
Help Contact Us Privacy Terms
Code Compare
Code Compare
Highlight differences between any two building codes.
Code diagrams
Code diagrams
Unpack the code through illustrations and descriptions.
Shared projects
Shared projects
Projects provide a dedicated space to collaborate on code research.
Code sheet exports
Code sheet exports
Generate a code sheet that integrates with your drawing set.
Search
Search
Don't miss relevant code. Quickly locate sections across your jurisdiction.
Code Calculators
Code Calculators
Code calculators automatically generate a detailed list of requirements.
UpCodes Premium
Leverage the most sophisticated code compliance platform.
TRY FREE FOR TWO WEEKS VISIT PRICING
UpCodes Premium
Leverage the full code compliance platform.
START 2 WEEK FREE TRIAL LEARN MORE