SAP2000 File: Attributes

Description

Node Attributes

SAP2000 uses Tables: "JOINT SPRING ASSIGNMENTS 1 - UNCOUPLED" to define joint spring stiffness values. Straus7 posts these joint stiffness values as node translational and rotational stiffness attributes.

SAP2000 uses Tables: "JOINT RESTRAINT ASSIGNMENTS" to define joint restraints. Straus7 posts these joint restraints as node restraint attributes.

SAP2000 uses Tables: "JOINT LOADS - GROUND DISPLACEMENT" to define joint displacements. Straus7 posts these joint displacements as node restraint attributes.

SAP2000 uses Tables: "JOINT LOADS - FORCE" to define joint forces and moments. Straus7 posts these joint forces as node force and moment attributes.

SAP2000 uses Tables: "JOINT ADDED MASS ASSIGNMENTS" to define joint masses. Straus7 posts these joint masses as node translational and rotational mass attributes.

Beam Attributes

SAP2000 uses Tables: "FRAME RELEASE ASSIGNMENTS 1 - GENERAL" and Tables: "FRAME RELEASE ASSIGNMENTS 2 - PARTIAL FIXITY" to define frame end releases. Straus7 posts these frame end releases as beam translational and rotational end release attributes.

SAP2000 uses Tables: "FRAME LOADS - DISTRIBUTED" to define frame distributed forces and moments. Straus7 posts these frame distributed forces and moments as beam principal and global distributed force attributes, and beam distributed moment attributes.

SAP2000 uses Tables: "FRAME LOADS - POINT" to define frame point forces and moments. Straus7 posts these frame point forces and moments as beam principal and global point force attributes, and beam principal and global point moment attributes.

SAP2000 uses Tables: "FRAME SPRING ASSIGNMENTS" to define a frame spring stiffness. Straus7 posts these frame spring stiffness values as beam support attributes.

SAP2000 uses Tables: "FRAME PRESTRESS 1 - PATTERNS" and Tables: "FRAME PRESTRESS 2 - LOAD MULTIPLIERS" to define a frame pre tension. Straus7 posts these frame pre tension values as beam pre tension attributes.

SAP2000 uses Tables: "FRAME ADDED MASS ASSIGNMENTS" to define frame added masses. Straus7 posts these frame added masses as beam non-structural mass attributes.

SAP2000 uses Tables: "FRAME LOADS - TEMPERATURE" to define frame temperatures and temperature gradients. Straus7 posts the frame temperatures as node fixed temperature attributes, and frame temperature gradients as beam temperature gradient attributes.

SAP2000 uses Tables: "CABLE LOADS - TEMPERATURE" to define cable temperatures. Straus7 posts the cable temperatures as node fixed temperature attributes.

Distributed and Point Forces /Moments

Straus7 assigns all distributed moments according to the beam principal axes system, where SAP2000 global directions X, Y and Z are assumed to correspond with SAP2000 beam local axes directions 2, 1 and 3 respectively. For the SAP2000 frame section ANGLE, all distributed forces and point forces/moments are assigned as global axes system attributes.

Beam Temperatures

Straus7 assumes a uniform beam temperature distribution for frame temperatures, and assigns fixed node temperatures for each node as an averaged nodal value.

Plate Attributes

SAP2000 uses Tables: "AREA LOADS - SURFACE PRESSURE" to define an area surface pressure. Straus7 posts these area surface pressures as plate normal face pressure and edge pressure attributes.

SAP2000 uses Tables: "AREA LOADS - UNIFORM" to define an area uniform pressure. Straus7 posts these area uniform pressures as plate global face pressure attributes.

SAP2000 uses Tables: "AREA SPRING ASSIGNMENTS" to define an area spring stiffness. Straus7 posts these area spring stiffness values as plate face support and plate edge support attributes.

SAP2000 uses Tables: "AREA ADDED MASS ASSIGNMENTS" to define area added masses. Straus7 posts these area added masses as plate face non-structural mass attributes.

SAP2000 uses Tables: "AREA LOADS - TEMPERATURE" to define area temperatures and temperature gradients. Straus7 posts the area temperatures as node fixed temperature attributes, and area temperature gradients as plate temperature gradient attributes.

SAP2000 uses Tables: "AREA LOADS - UNIFORM TO FRAME" to define an area uniform pressure to plate element with small stiffness. The load is transferred to the underlying frame via the DistType="One way" and "Two way" keywords. Straus7 posts these area uniform pressures as plate global face pressure attributes and assigns load patch type attributes to the plate/shell element to reflect the DistType keywords. To consider the load patch type attributes, the plate/shell property must be changed to load patch property manually under Global: Plate Properties.

Plate Temperatures

Straus7 assumes a uniform plate temperature distribution for area temperatures, and assigns fixed node temperatures for each node as an averaged nodal value.

Brick Attributes

SAP2000 uses Tables: "SOLID LOADS - SURFACE PRESSURE" to define a solid surface pressure. Straus7 posts these solid surface pressures as brick face normal pressure attributes.

SAP2000 uses Tables: "SOLID SPRING ASSIGNMENTS" to define a solid spring stiffness. Straus7 posts these solid spring stiffness values as brick face support attributes.

SAP2000 uses Tables: "SOLID LOADS - TEMPERATURE" to define solid temperatures. Straus7 posts these solid temperatures as node fixed temperature attributes.

Brick Temperatures

Straus7 assumes a uniform brick temperature distribution for solid temperatures, and assigns fixed node temperatures for each node as an averaged nodal value.