OpenSees的全称是Open System for Earthquake Engineering Simulation(地震 0%IZ -])
工程模拟的开放体系)。它是由美国国家自然科学基金(NSF)资助、西部大学联 Yc3\
盟“太平洋地震工程研究中心”(Pacific Earthquake Engineering Research Center, 1L\r:mx3
简称PEER)主导、加州大学伯克利分校为主研发而成的、用于结构和岩土方面地 q$}J/w(,
震反应模拟的一个较为全面且不断发展的开放的程序软件体系。 =_Z.x&fi
OpenSees程序自1999年正式推出以来,已广泛用于太平洋地震工程研究中心 '9<8<d7?
和美国其它一些大学和科研机构的科研项目中,较好的模拟了包括钢筋混凝土结 ATmyoN2@>
构、桥梁、岩土工程在内众多的实际工程和振动台试验项目,证明其具有较 pXh`o20I
好的非线性数值模拟精度。该程序正在引起世界各国结构工程领域众多研究人员 ,MHF
的关注和重视,而在国内也开始有少数学校开展了一些初步的学习和相关的研究 ,,)'YhG(
工作。 ?A*<Z%}1?
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The Open System for Earthquake Engineering Simulation BI!E mA
The Open System for Earthquake Engineering Simulation (OpenSees) is a software framework for simulating the seismic response of structural and geotechnical systems. OpenSees has been developed as the computational platform for research in performance-based earthquake engineering at the Pacific Earthquake Engineering Research Center. OpenSees is also the simulation component for the NEESit since 2004. G[OJ<px
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Capabilities c5i7mx:.
OpenSees has advanced capabilities for modeling and analyzing the nonlinear response of systems using a wide range of material models, elements, and solution algorithms. The software is designed for parallel computing to allow scalable simulations on high-end computers or for parameter studies. XJq]l6a:
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Modeling { W5
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OpenSees providing beam-column elements and continuum elements for structural and geotechnical models. A wide range of uniaxial materials and section models are available for beam-columns. j*1MnP3/8Y
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Analysis 5pHv5e
Nonlinear analysis requires a wide range of algorithms and solution methods. OpenSees provides nonlinear static and dynamic methods, equation solvers, and methods for handling constraints. s,Fts3+
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Development Process 0}9j l
OpenSees is open-source. This website provides information about the software architecture, access to the source code, and the development process. The open-source movement allows earthquake engineering researchers and users to build upon each others accomplishments using OpenSees as community-based software. .&>3nu
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