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DRAFT: Tendons are line objects which may be embedded within other objects (frames, shells, solids, etc.) to simulate the effects of prestressing and post-tensioning. Tendons may be modeled either as independent structural objects or simply as equivalent loads which act upon the structure. When modeled as objects, nonlinear behavior may be assigned, and losses may be calculated, including those from elastic shortening and time-dependent effects (creep, shrinkage, and aging). Tendons extend between two joint locations and may follow an arbitrarily curved or segmented path within 3D space. Hinge properties may be assigned to the axial DOF of tendons to model their nonlinear behavior. |
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*Tendons* are line objects which may be embedded within other objects ([frames|kb:Frame], [shells|kb:Shell], [solids|kb:Solid], etc.) to simulate the effects of prestressing and post-tensioning. Tendons may be modeled either as independent structural objects or simply as equivalent loads which act upon the structure. When modeled as objects, [nonlinear|kb:Nonlinear] behavior may be assigned through axial [hinges|kb:Hinge], and losses may be calculated, including those from elastic shortening and time-dependent effects ([creep|kb:Creep], [shrinkage|kb:Shrinkage], and aging). Tendons extend between two [joint|kb:Joint] locations, may follow a curvilinear or segmented path within 3D space, and do not need to be entirely within other objects. Tendons have axial, shear, bending, and torsional stiffness properties, though axial are of primary concern. A maximum tension (positive) and compression (negative) limit may be assigned to tendons. No-compression behavior is specified by setting the compression limit to zero. These limits only apply during nonlinear analysis. [Target forces|kb:Target force] may also be applied to tendons. Additional information on tendons and their application is available in the {new-tab-link:http://www.csiberkeley.com/}CSI{new-tab-link} [_Analysis Reference Manual_|doc:CSI Analysis Reference Manual] (The Tendon Object, page 279).
{list-of-resources2:label=tendon|drafts-root=Tendon drafts}
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