SAP2000

SAP2000
Name	SAP2000
Developer	Computers and Structures, Inc.
Released	0 1970
Operating system	Microsoft Windows
Genre	Structural analysis
License	Proprietary software

SAP2000. It is a general-purpose finite element analysis and design software developed by Computers and Structures, Inc. (CSI). The program is widely used by civil engineers and structural engineers for the modeling, analysis, and design of various structures. Its name originates from its origins as the Structural Analysis Program.

Overview

SAP2000 is a flagship product of Computers and Structures, Inc., a company founded by researchers including Edward L. Wilson. The software provides an integrated environment for the entire structural engineering process, from initial concept to final detailed design. It is utilized globally for projects ranging from simple beam frames to complex skyscrapers and long-span bridges. The interface and workflow are designed to increase productivity for engineers working on diverse projects like stadiums, airport terminals, and offshore platforms.

Features and Capabilities

The software offers a comprehensive suite of tools for creating complex geometric models using built-in templates and sophisticated CAD interoperability. Its analysis capabilities include linear static analysis, nonlinear static analysis (pushover analysis), and both linear and nonlinear dynamic analysis methods. For design, it automates code-based checking and optimization for a wide range of materials according to international standards like the American Institute of Steel Construction and the American Concrete Institute. Advanced features also encompass soil-structure interaction modeling and analysis for seismic retrofitting of existing structures.

Analysis and Design Methods

SAP2000 performs sophisticated finite element method simulations using elements such as shell elements, solid elements, and specialized link elements to model complex behavior. Dynamic analysis options include response spectrum analysis, time history analysis, and modal analysis to evaluate structures under earthquake or blast loading. The software incorporates P-delta effects and large displacement analysis for geometric nonlinearity. Its design modules automatically generate load combinations based on numerous building codes, including those from the International Building Code, and perform steel design and concrete design calculations.

Applications in Structural Engineering

The program is applied across a vast spectrum of structural engineering projects. It is instrumental in the design of major cable-stayed bridges, suspension bridges, and arch bridges, ensuring their performance under wind load and traffic. For building design, it is used for high-rise structures, tall buildings like the Burj Khalifa, and large convention center complexes. Other significant applications include the analysis of nuclear power plant structures, petrochemical plant facilities, and the assessment of historical buildings for preservation.

History and Development

The origins of SAP2000 trace back to the original SAP (Structural Analysis Program) developed at the University of California, Berkeley by Edward L. Wilson and his colleagues in the late 1960s. This academic research evolved into a commercial product with the founding of Computers and Structures, Inc. in 1975. Over decades, the software has transitioned from a command-line interface on mainframe computers to a fully graphical environment on the Microsoft Windows platform. Major milestones have included the integration of object-oriented modeling and the continuous expansion of its design codes to adhere to global standards like Eurocode.

Software Integration and Interoperability

SAP2000 is designed to function within a broader digital workflow, featuring bidirectional links with other CSI software like ETABS and SAFE. It supports open standards through Application Programming Interface (API) access for automation and customization. The software can import and export models using common formats for interoperability with Building Information Modeling platforms like Autodesk Revit and Bentley Systems software. This facilitates efficient data exchange with architects and other engineering disciplines throughout the project lifecycle on major infrastructure works.

Category:Structural engineering Category:Engineering software Category:Finite element software