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// CODE SNIPPET

A509.2.1.3 Model of Infill

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 > A509.2 Pseudo-Nonlinear Dynamic Analysis Procedure > A509.2.1 Determination of the Effective Stiffness > A509.2.1.3 Model of Infill
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The mathematical model of an infilled frame structure shall include the stiffness effects of the infill as a pair of diagonals in the bays of the frame. The diagonals shall be considered as having concrete properties and only axial loads. Their lines of action shall intersect the beam-column joints. The secant stiffness of the force-displacement relationship, calculated as prescribed in Section A509.2.1.2, shall be used to determine the effective area of the diagonals. The effective stiffness of the frame shall be determined as specified in Section A509.2.1.1. Other procedures that provide the same effective stiffness for the combination of infill and frame may be used when approved by the building official.

Related Code Sections


A509.2.1.3 Earthquake Hazard Reduction in Existing Concrete Buildings and Concrete With Masonry Infill Buildings, Model of Infill
The mathematical model of an infilled frame structure shall include the stiffness effects of the infill as a pair of diagonals in the bays ...
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 > A509.2 Pseudo-Nonlinear Dynamic Analysis Procedure > A509.2.1 Determination of the Effective Stiffness > A509.2.1.3 Model of Infill
Section A509 Earthquake Hazard Reduction in Existing Concrete Buildings and Concrete With Masonry Infill Buildings, Tier 3 Analysis Procedure
analysis for frame or shear wall buildings, and from the substructure model for infill frames. The combination of critical effects for analysis ...
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
A508.4 Earthquake Hazard Reduction in Existing Concrete Buildings and Concrete With Masonry Infill Buildings, Mathematical Model
The three-dimensional mathematical model of the physical structure shall represent the spatial distribution of mass and stiffness of the structure ...
2010 Existing Building Code of NY > A5 Earthquake Hazard Reduction in Existing Concrete Buildings and Concrete With Masonry Infill Buildings > A508 Tier 2 Analysis Procedure > A508.4 Mathematical Model
A509.1.1 Earthquake Hazard Reduction in Existing Concrete Buildings and Concrete With Masonry Infill Buildings, Mathematical Model
The three-dimensional mathematical model of the physical structure shall represent the spatial distribution of mass and stiffness of the structure ...
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 > A509.1 General > A509.1.1 Mathematical Model
A509.3.2 Earthquake Hazard Reduction in Existing Concrete Buildings and Concrete With Masonry Infill Buildings, Modeling of Building Components
Component initial stiffness shall be represented by a secant value defined by the effective yield point of the component. The effective initial ...
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 > A509.3.2 Modeling of Building Components
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