To generate moment-curvature reports and obtain Crack Inertia and pushover hinge property data for seismic design, the Moment-Curvature Object can be utilized.
While all sections can be used to generate moment-curvature curves in the Section Editor, this object is specifically designed to provide data for seismic analysis. For further explanation, refer to https://openbrim.atlassian.net/wiki/spaces/OBrIM/pages/edit-v2/2124677142#Moment-Curvature .
As outlined above, after defining the section, reinforcements, materials, and loads with the parameters listed below, the report can be accessed through the DOCS button on the left-hand side toolbar. This report will present the user with Confined Concrete Strength/Strain values, Cracked Inertia Values, and Hinge Property Data, which can be further used in other related objects for seismic design.
The defined reports can be accessed through the DOCS button located in the left-hand sidebar.
Section
Section Type[Circle/Oblong]:
Outside Diameter:
Section Overall Width:
Section Height:
Cover Thickness:
Longitudinal Bar Size:
Transverse Bar Size:
Number of Longitudinal Bar Bundle:
Number of Bars Per Bundle:
Gross Section Area (readonly):
Confined Core Area (readonly):
Longitudinal Steel Area (readonly):
Longitudinal Reinforcement Steel Ratio % (readonly):
Concrete Material
28 Day Concrete Compressive Strength:
Concrete Elastic Modulus:
Rebar Material
Longitudinal Reinforcing Bar Yield Stress:
Longitudinal Reinforcing Bar Fracture Stress:
Steel Standard and Grade[ASTMA706Grade60/ASTMA706Grade80]:
Circular Hoop-Spiral Confinement Details
Type of Transverse Reinforcing[Circular Hoop/Spirals]:
Transverse Reinforcing Bar Yield Stress:
Spacing of Transverse Reinforcement:
Transverse Reinforcing Steel Strain at Fracture:
Maximum Confined Concrete Crushing Strain:
Transverse Reinforcement Volumetric Ratio X-dir. (readonly):
Axial Forces
Axial Forces:
Moment Curvature Analysis Settings
Resistance Factor Tension Controlled Section:
Resistance Factor Compression Controlled Section:
Number of Refinement for Moment-Curvature Analysis:
Number of Points for Moment-Curvature Curve:
Interlocking
Number of Hoop[One/Two]:
# of Total Interlocking Bar by Hoop:
Interlocking Area Bar Size:
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