General Purpose Finite Element Structural Analysis Program SAP84
Developed by Yuan Mingwu, Chen Pu, Sun Shuli, Zheng Dong, Chen Bin, Zhang Huiji, Yang Loubin etc.
SAP84 Developing and Consulting Group, Department
of Mechanics & Engineering Science, Peking University
Awards:
The third class award of progress in science and technology,issued by China Government, 1990
The first class award of progress in science and technology, issued by China Ministry of Education, 1989
The first class award of achievement in science and technology, issued by Peking University, 1988
Web site: http://www.sap84.cn
SAP84 is one of the most popular general-purpose structural analysis programs in China. It has the advantages of reasonable modeling, convenience, powerful capability and accurate results. Thousands of practical engineering projects have been computed, checked, simulated or validated by SAP84. Among them the most represented ones are:
 | Preliminary design of Three Gorges Dam of Yangtze River |
| Seismic analysis of the key water conservancy project at Xiao Lan Di of Yellow River |
| Main structure of Beijing West Railway Station |
| Seismic analysis of the container of Qingshan Nuclear Power Plant |
| Cable stained bridge at Yun Xian, Hubei |
| China Bank Plaza at Shenzhen |
| New Century building with 4 towers at Chong-wen-men, Beijing |
| Yun-ding building at Tianjing |
| Yun-shan building at Dalian |
| Wang-Fu-Jing building at Chengdu |
| China Construction Building at Chongqing |
| Wuxi Big Buddha |
| Steel roof of Shanghai Grand Opera House |
| Cable suspend roof of waiting hall of Shanghai Pudong International Airport |
| Beijing Botanical Exhibition Greenhouse |
| Beijing Chinese New Century Platform |
SAP84 is applicable to static and dynamic analyses in a wide range of engineering problems rising in civil engineering, water conservancy, traffic, mechanical, aeronautical, metallurgical, railway, chemical engineering, as well as in research and teaching in universities. The software is executable on computers with Windows 95, 98 or NT operating systems. The source code of the software consists of about 300,000 statements in FORTRAN and C++. SAP84 utilized the recent achievements in computational mechanics, numerical analysis and programming. The plenty element library and high performance solver allow to find efficiently solutions of large and super-large engineering projects on microcomputers. Generally, the capacity and efficiency of SAP84 reached the international leading position among the similar sort of software. SAP84 is particularly suitable to be applied for large, complex, special and irregular civil structures, such as multi-level and tall building with towers, large opening and transfer floor; large truss system, large stadium and gymnasium, cable stayed and suspension bridges etc. The main analysis functions can be outlined as follows.
| No essential limitation for capacity, which is only depends how large of a single file in secondary storage the computer allows. |
| High performance static and dynamic solvers such as cell index based fast sparse solver and subspace iteration, Ritz vector WYD approach for eigenvalues and eigenvectors |
| Transient response analysis by mode superposition and Newmark or Wilson-θ direct integration |
| Seismic analysis based on Chinese code of response spectrum or time history analysis |
| Dynamic reliability analysis in frequency domain |
| Plenty element library: 3D truss, 3D frame, 3Dframe with variant section, curved frame, pipe, 2D plane (including plane strain, plane stress,3D membrane, axial symmetric and axial symmetric with torque ), 3D solid (including 4-21 node isoparametric, 8 node nonconforming, 16 node nonconforming), 3D solid 8 node nonconforming with drilling degree of freedom, shell, wall, penalty, etc. |
| Completely compatible between wall and frame elements |
| Geometric non-linearity of frame and truss by means of P-D effect |
| Stability analysis for frame, truss and plate-shell elements |
| Reinforcement of frame based on Chinese code for frame (GB50010-2002) |
| Influence line analysis for railway and highway bridge based on Chinese Code |
| Automatic section search for shaped steel |
| Design strength and stability check for shaped steel（GB50017-2003） |
| Combined pile and pier analysis |
Besides the analysis functions, the main pre- and post- processors of SAP84 are:
| GIS --- An graphic interactive system for windows, which is especially convenient for tall buildings. There are three different working platforms built in (building floor, arbitrary elevation plane, arbitrary spatial) to be suitable to any special structures. |
| AutoMESH 2D --- Automatic finite element mesh generator and modeling for 2D plane structures. |
| AutoMESH 3D --- Automatic finite tetrahedron element mesh generator and modeling for 3D solid structures. |
| ASD & CADS --- Drawing system for reinforcement concrete based on Chinese code. |
SAP84 has gone through extensive testing and was carefully verified by thousands of engineering problems, including the analyses of tall buildings, continuous bridge girders, retaining walls, foundations, concrete dams, buses, pressure vessels, piping frame, etc. The software has high reliability and accuracy. Hence, SAP84 has already become a practical and powerful package for structural analysis in civil, mechanical and aeronautical applications.
For any inquire, please contact
Professor Mingwu Yuan
Department of Mechanics and Engineering Science
Peking University
Beijing 100871, China
Tel: +86-10-62751826, 86-10-62751828
Fax: +86-10-62759806
Email: sap84@pku.edu.cn